10-K

nxtc-20201231x10k.htm

10-K

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

For the fiscal year ended December 31, 2020

For the transition period from to .

Commission File Number: 001-38905

NextCure, Inc.

(Exact name of registrant as specified in its charter)

9000 Virginia Manor Road, Suite 200Beltsville, Maryland 20705

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (240) 399-4900

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered:

Common Stock, $0.001 par value per share NXTC Nasdaq Global Select Market

Securities registered pursuant to Section 12(g) of the Act: None.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes ☐ No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

Yes ☐ No ☒

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ⌧ No ◻

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☐ Accelerated filer ☐

Non-accelerated filer ☒ Smaller reporting company ☒

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. Yes ☐ No ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The aggregate market value of the registrant’s common stock held by non-affiliates as of June 30, 2020 the last business day of the registrant’s most recently completed second fiscal quarter, was approximately $590.0 million, as computed by reference to the closing price of the common stock on the Nasdaq Global Select Market on that date.

As of March 3, 2021, the registrant had 27,599,949 shares of common stock, par value $0.001 per share, issued and outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive Proxy Statement for its 2021 Annual Meeting of Stockholders, which will be filed with the Commission within 120 days after December 31, 2020, are incorporated by reference into Part III of this Report.

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NextCure, Inc.

Form 10-K

For the Year Ended December 31, 2020

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Page

PART I

Item 1 Business 6

Item 1A Risk Factors 39

Item 1B Unresolved Staff Comments 83

Item 2 Properties 83

Item 3 Legal Proceedings 83

Item 4 Mine Safety Disclosures 83

PART II

Item 6 Selected Financial Data 84

Item 7A Quantitative and Qualitative Disclosures About Market Risk 95

Item 8 Financial Statements and Supplementary Data 96

Item 9A Controls and Procedures 120

Item 9B Other Information 120

PART III

Item 10 Directors, Executive Officers, and Corporate Governance 120

Item 11 Executive Compensation 120

Item 14 Principal Accounting Fees and Services 121

PART IV

Item 15 Exhibits, Financial Statement Schedules 121

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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report contains forward-looking statements, including with respect to our plans, objectives and expectations for our business, operations and financial performance and condition. Any statements contained herein that are not statements of historical facts may be deemed to be forward-looking statements. The forward-looking statements are contained principally in the sections entitled “Business,” “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” but are also contained elsewhere in this Annual Report. In some cases, you can identify forward-looking statements by terminology such as “aim,” “anticipate,” “assume,” “believe,” “continue,” “could,” “due,” “estimate,” “expect,” “intend,” “may,” “objective,” “plan,” “predict,” “potential,” “positioned,” “seek,” “should,” “target,” “will,” “would” and other similar expressions that are predictions of or indicate future events and future trends, or the negative of these terms or similar language. Forward-looking statements include, but are not limited to, statements about:

● the identification, analysis and use of biomarkers and biomarker data;

● the impact of current and future laws and regulations.

These statements, and other forward-looking statements, are based on management’s current expectations, estimates, forecasts and projections about our business and industry, are not guarantees of future performance and involve known and unknown risks, uncertainties and other factors that are in some cases beyond our control, such as the impact of the COVID-19 pandemic, and that may cause our or our industry’s actual results, levels of activity, performance or achievements to be materially different from those anticipated by the forward-looking statements. Forward-looking statements contained in this Annual Report should be considered in light of these factors and the factors set forth under “Risk Factor Summary” below and the factors described elsewhere in this Annual Report, including in in the sections entitled “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” You should read these factors and the other cautionary statements made in this Annual Report as being applicable to all related forward-looking statements wherever they appear in this Annual Report. If one or more of these factors materialize, or if any underlying assumptions prove incorrect, our actual results, levels of activity, performance, or achievements may

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vary materially from any future results, activity, performance, or achievements expressed or implied by these forward-looking statements.

We caution readers not to place undue reliance on any forward-looking statements made by us, which speak only as of the date of this Annual Report. We undertake no obligation to publicly update any forward-looking statements after the date of this Annual Report, whether as a result of new information, future events or otherwise, except as required by law. We qualify all of our forward-looking statements by the foregoing cautionary statements.

RISK FACTOR SUMMARY

The following is a summary of the principal risk factors that make an investment in our common stock speculative or risky. Before you invest in our securities, you should read the following summary together with the more detailed description of material risks described under "Risk Factors" in Item 1A of this Annual Report and the other information contained in this Annual Report.

Risks Related to Our Financial Position and Need for Additional Capital

Risks Related to the Discovery and Development of Our Product Candidates

● Regulatory approval processes are lengthy and inherently unpredictable.

Risks Related to the Regulatory Approval and Commercialization of Product Candidates and Other Legal Compliance Matters

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Risks Related to Manufacturing

Risks Related to Intellectual Property

Risks Related to Reliance on Third Parties

Risks Related to Our Business

Risks Related to Our Common Stock

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PART I

Item 1. Business

Overview

We are a clinical-stage biopharmaceutical company committed to discovering and developing novel, first-in-class immunomedicines to treat cancer and other immune-related diseases by restoring normal immune function. We view the immune system holistically and, rather than target one specific immune cell type, we focus on understanding biological pathways, the interactions of cells and the role each interaction plays in an immune response. Through our proprietary Functional, Integrated, NextCure Discovery in Immuno-Oncology, or FIND-IO, platform, we study various immune cells to discover and understand targets and structural components of immune cells and their functional impact in order to develop immunomedicines. We are focused on patients who do not respond to current therapies, patients whose cancer progresses despite treatment and patients with cancer types not adequately addressed by available therapies. We are committed to discovering and developing first-in-class immunomedicines that act by new or unique mechanisms.

Our lead product candidate, NC318, is a first-in-class immunomedicine targeting a novel immunomodulatory receptor called Siglec-15, or S15. We are currently evaluating NC318 for the treatment of advanced or metastatic solid tumors, including head and neck squamous cell carcinoma, or HNSCC, and triple-negative breast cancer, or TNBC. In October 2018, we initiated the Phase 1 portion of a Phase 1/2 clinical trial of NC318 in patients with advanced or metastatic solid tumors. We completed enrollment of the Phase 1 portion of this trial in August 2019 and preliminary data from the Phase 1 portion were presented in November 2019 at the Society for Immunotherapy of Cancer, or SITC, annual meeting. Data from the trial indicated activity in multiple tumor types, including a complete response and a partial response in patients with non-small cell lung cancer, or NSCLC, and durable stable disease in patients with NSCLC, endometrial cell cancer, ovarian cancer, squamous cell carcinoma, Merkel cell cancer, and head and neck cancer. We began enrolling patients in the Phase 2 portion of the trial in October 2019. In the Phase 2 portion, patients were initially selected based on tumors with a PD-L1 tumor proportion score, or TPS, of less than 50%. In July 2020, we announced a confirmed partial response in a head and neck squamous cell carcinoma patient. In addition, we reported that at that time we did not plan to progress the NSCLC and ovarian cancer cohorts to the second stage of the Simon 2-stage trial. In December 2020, we completed a retrospective analysis of S15 expression in biopsy samples collected from the Phase 2 patients at their initial screening. Of the evaluable biopsies collected, 13% of the patients enrolled had S15-positive tumors. These biopsies showed that the selection criterion did not result in enough S15-positive patients to effectively evaluate the activity of NC318 in S15-positive tumors. We are modifying the Phase 2 portion of the trial for S15 selection and expect to begin pre-selecting patients for enrollment based on S15 expression in the second quarter of 2021, which we anticipate will allow us to assess response rates in patients selected for S15 positivity. As of December 2020, NC318 continued to be well tolerated in the Phase 2 portion of the trial, with primarily mild or moderate treatment-related adverse events, or TRAEs. The only observed severe or higher grade TRAE in the Phase 2 portion was a grade 3-4 infusion reaction in one patient. While we no longer plan to initiate a study of NC318 in combination with chemotherapy in lung cancer patients at this time, we believe that scientific evidence supports studying a combination of NC318 with an anti-PD-1 therapy. In the second quarter of 2021, Yale plans to initiate a Phase 2 Investigator-Initiated, or IIT, of NC318 as a monotherapy and in combination with pembrolizumab, an anti-PD-1, in NSCLC patients.

NC318 is a monoclonal antibody targeting S15, which is expressed on highly immunosuppressive cells called M2 macrophages and on tumor cells. The immunosuppressive properties of S15 were discovered in 2015 at Yale by our scientific founder Dr. Lieping Chen. Dr. Chen was also the first to discover a molecule he called B7-H1, which is now more widely known as PD-L1, or programmed cell death protein ligand 1, which is the ligand for PD-1, or programmed cell death 1. In preclinical research, we and others have observed that S15 promotes suppression of T cell proliferation and negatively regulates T cell function. NC318 is designed to block S15-mediated immune suppression and restore T cell function and anti-tumor immunity in the tumor microenvironment, or TME, which we believe will reduce and kill tumors. We believe NC318 has the potential to treat multiple cancer indications because S15 is expressed in multiple tumor types and has a unique ability to modulate immune responses in the TME. In addition, because S15 and PD-L1 expression in tumors generally appear to be non-overlapping, we believe NC318 may be well suited to treat patients who are not responding to PD-1/PD-L1 directed cancer therapies.

Our second product candidate, NC410, is a novel immunomedicine designed to block immune suppression mediated by an immune modulator called Leukocyte-Associated Immunoglobulin-like Receptor 1, or LAIR-1. The U.S. Food and Drug Administration, or FDA, accepted our investigational new drug application, or IND, for NC410 in the first

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quarter of 2020, and we initiated the Phase 1 portion of a Phase 1/2 clinical trial in patients with advanced or metastatic solid tumors in June 2020 after a temporary delay due to the COVID-19 pandemic. Initial Phase 1 data are expected to be reported in the second half of 2021.

NC410 is a fusion protein designed to block immune suppression mediated by LAIR-1. LAIR-1 is expressed on T cells and antigen-presenting cells, known as dendritic cells, that present tumor antigens to immune cells in order to generate immune responses. The binding of LAIR-1 to collagen or C1q results in loss of immune function in the TME and a reduction in T cell function and dendritic cell activity. By blocking the binding of LAIR-1, NC410 can promote T cell function and dendritic cell activity, which could result in anti-tumor immune responses that eliminate cancer cells. We are currently focused on opportunities for NC410 in ovarian cancer, NSCLC and pancreatic cancer.

Our third product candidate, NC762, is an immunomedicine targeting a molecule called human B7 homolog 4 protein, or B7-H4. We submitted an IND to the FDA for NC762 in the first quarter of 2021, and we intend to initiate a Phase 1/2 clinical trial in patients with lung cancer, HER2+ breast cancer, ovarian cancer and potentially other tumor types in the second quarter of 2021.

NC762 is a monoclonal antibody that binds specifically to B7-H4, a protein expressed on multiple tumor types. We believe NC762 has unique anti-tumor properties and acts by inhibiting tumor cell growth and killing tumor cells, including by enhancing the immune response. We have observed in preclinical studies that NC762 inhibits the growth of human melanoma tumors in mice, and we believe that NC762 has the potential to treat multiple tumor types. Our research indicates that NC762 inhibits tumor cell growth independently of immune cell infiltration in the TME, but that NK cells may contribute to enhanced anti-tumor activity mediated by NC762.

Our approach to identifying targets for new immunomedicines is based on our FIND-IO platform. FIND-IO embodies a rational approach to the discovery of novel cell surface and secretory molecules that drive functional immune responses. We use our immunology knowledge, experience and capabilities and tools we have developed, including our FIND-IO platform, to support our discovery efforts. We are working to discover novel targets that play a key role in mediating immune dysfunctions that allow tumors to evade the immune system. We seek to identify and develop immunomedicines that counteract these outcomes and to further validate and advance our product candidates. We have identified multiple novel targets using our FIND-IO platform, including those for which certain of our research programs are being designed to target. The immunosuppressive properties of S15, the target of NC318, were discovered using a predecessor of our FIND-IO platform.

We are using our FIND-IO platform as our discovery engine to identify targets and develop immunomedicines that restore normal immune function in the TME through novel mechanisms of action. Since our founding in 2015, we have developed, industrialized and optimized our FIND-IO platform based on the immunological expertise of our management team and the scientific leadership of our scientific founder, Dr. Lieping Chen. Our approach in creating the FIND-IO platform, and how we apply it, reflects our belief in the importance of understanding biological pathways of all cells in the immune system and restoring normal immune function. The platform uses our proprietary approaches to assess the suppressive or stimulatory function of immune pathways in T cells and other immune cells, as measured by effects on proliferation or induction of molecules known to impact immune responses, such as cytokines, which are signaling molecules secreted by cells in the immune system that mediate and regulate immunity and inflammation. We study primary immune cells from healthy donors and from patients with various diseases, as well as established cell lines from immune and non-immune cell lineages, including T cell subsets, monocytes, macrophage subpopulations and cancer cell lines. In oncology, we are using the FIND-IO platform to discover immunomedicines with the potential to intervene or modulate interactions of immune cells within the TME to restore anti-tumor activity. We are also expanding the functional screening approach of our FIND-IO platform for the identification of novel targets in other serious illnesses outside of oncology, including autoimmune, inflammatory and neuro-inflammatory diseases.

Members of our management team have a longstanding relationship with our scientific founder Dr. Chen, who is the United Technologies Corporation Professor in Cancer Research and Professor of Immunobiology, of Dermatology and of Medicine (Medical Oncology) at Yale, and the Co-Director of the Cancer Immunology Program at Yale Cancer Center. Dr. Chen was the first to discover PD-L1, and to show that it is expressed by multiple tumor types and its activity can cause the death of T cells, preventing those T cells from eliminating cancer cells. He also showed that blocking the interaction between PD-1 and PD-L1 with monoclonal antibodies improved the immune system’s ability to eliminate tumors. Dr. Chen’s work provided an important foundation for the subsequent development of immunotherapies that

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enable more effective immune treatments against cancer. We continue to collaborate with Dr. Chen on discovering novel immunomedicines through an exclusive sponsored research agreement with Yale.

Our Pipeline

We are leveraging our understanding of biological pathways and our FIND-IO platform to discover, validate and build a proprietary pipeline of immunomedicine candidates. The figure below details our pipeline of product candidates and principal discovery and research programs.

Our Strategy

Our strategy is to use our fully integrated discovery and product development infrastructure to build a sustainable pipeline of product candidates to treat cancer patients who are not adequately served by currently available therapies. The key elements of our strategy include:

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Immuno-Oncology Background

The immune system has powerful biological mechanisms to defend and protect the body from pathogens, such as viruses, parasites and bacteria. It also provides surveillance against cancers by recognizing and responding to antigens that are uniquely or highly expressed on cancer cells. In cancer, complex interactions between immune cells and growing tumor cells can prevent an immune response by blocking cellular interactions, resulting in immunosuppression in the TME. This phenomenon, referred to as immune evasion, is a hallmark of cancer where the tumor can prevent tumor-specific immune cells called T cells from functioning within the TME or gaining access to the tumor site, which allows the tumor to continue to grow, leading to disease progression. Tumors in advanced cancer have multiple mechanisms of evasion in the TME that can differ from tumor to tumor.

Remodeling the TME and overcoming its immunosuppressive properties is a major focus of cancer research and drug development. Checkpoint inhibitors are a drug class designed to counteract certain tumor defenses against the immune system. Currently approved checkpoint inhibitors were developed based on the belief that an immune system inactivated by co-inhibitory proteins known as checkpoints could be reactivated to recognize and attack the tumor. Therapies against checkpoints, such as PD-L1, PD-1 and CTLA-4, have produced impressive results in the clinic across an array of cancers and have been approved for several malignancies. However, despite the recent success of these checkpoint inhibitors, it is estimated that up to 60% to 70% of cancer patients do not respond to single-agent therapy with checkpoint inhibitors. This limited efficacy highlights the importance of our effort to identify novel targets and molecular pathways responsible for tumor immune evasion mechanisms that we believe will work independently from current targets for cancer immunotherapy.

Our Approach to Developing Immunomedicines for Cancer

Our approach to identifying targets for new immunomedicines in cancer is based on the combination of our FIND-IO platform, our immunological expertise and our belief in the importance of understanding biological pathways and the normal function of the immune system in the TME. Rather than focusing on a specific type of immune cell, we are targeting molecules that modulate the immune system in ways that we believe may provide new treatment opportunities for patients that are differentiated from currently marketed targeted therapies as well as those in development. Our primary goal is to develop immunomedicines that increase response rates, efficacy and durable overall survival among patients who do not respond to current therapies, patients whose cancer progresses despite treatment and patients with cancer types that are not adequately addressed by currently available therapies. We design our product candidates either to restore the normal effects of the immune system to promote elimination of the tumors or to counteract tumor immune evasion mechanisms.

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Our FIND-IO platform applies a function-based screening approach to identify human proteins and to determine whether those proteins alter or stop an immune response resulting in immune evasion. The platform is designed to identify novel cell surface molecular interactions that drive functional immune responses. Our FIND-IO platform broadly and quantitatively evaluates interactions between relevant protein components and different cellular types over time in order to identify novel targets that either increase or decrease immune-related functional responses associated with desired immune responses against tumors. By identifying novel immune modulators through the FIND-IO platform, we aim to develop next-generation immunomedicines that restore normal immune function in the TME.

To create our FIND-IO platform, we industrialized, expanded and optimized the T Cell Activity Array, or the TCAA, a predecessor of the FIND-IO platform that Dr. Chen used to discover the immunosuppressive properties of S15. Our work in developing the FIND-IO platform beyond the TCAA includes using different and expanded gene libraries, adding biological pathways and reporters, expanding immune cell types and, most importantly, increasing the repertoire of functional assay readouts. We also broadened the platform to look at signaling within both the immune cell and the cell expressing the library gene. By transfecting cells with library genes, which encode membrane-bound or soluble proteins, FIND-IO is designed to determine whether the genes have signaling functions when interacting with an immune cell.

Our FIND-IO technology includes proprietary approaches to functionally assess immune pathways in both primary immune cells and established cell lines from immune lineages, including T cell subsets, monocytes, macrophage subpopulations, dendritic cells, cancer cell lines and cells isolated from diseased patients. This platform allows us to identify proteins that can be targeted with novel immunomedicines to repair and maintain anti-tumor immunity. By focusing on understanding the TME in oncology, we believe we can identify multiple new positive and negative modulators of immune cells, including T cells, NK cells, macrophages and myeloid-derived suppressor cells.

As shown in the figure below, our product candidates target a variety of cell types in the immune system. For example, NC318 targets macrophages and tumor cells and prevents suppressive myeloid cells from negatively regulating T cells, and NC410 targets the negative signaling from dendritic cells, macrophages and T cells mediated by the binding of LAIR-1 to its ligands collagen and C1q. We also have earlier stage discovery programs that are investigating the negative effects of NK cells and other immune cells in the TME on T cells.

Expanding Targets Beyond T Cells

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Our Programs

NC318

NC318 is a monoclonal antibody that binds specifically to human S15 with high affinity. We have observed in preclinical studies that blocking S15 improved the immune response in multiple animal models. We believe that NC318 may help promote an effective anti-tumor immune response by targeting multiple cell types in the TME that express S15, including macrophages and S15-positive tumor cells. Based on the results of the Phase 1 portion of our Phase 1/2 clinical trial of NC318 in patients with advanced or metastatic solid tumors, we began enrolling patients in the Phase 2 portion of the trial in October 2019. The Phase 2 portion of the trial was designed as a Simon Two-Stage trial, a type of Phase 2 trial that is multi-stage, and is conducted in two stages with the option to stop the trial after the first stage or after the second stage. In the Phase 2 portion, patients were initially selected based on tumors with a PD-L1 TPS of less than 50%. In April 2020, we announced that given enrollment slowdown due to the COVID-19 pandemic, we expected initial data from the Phase 2 portion of the Phase 1/2 monotherapy trial to be temporarily delayed. However, we continued to support ongoing activities for patients enrolled in the trial and to work with our clinical sites to enroll new patients as appropriate.

In July 2020, we reported a confirmed partial response in a head and neck squamous cell carcinoma patient. In addition, we reported that at that time we would not progress the NSCLC and ovarian cancer cohorts to the second stage of the Simon 2-stage trial. In December 2020, we completed a retrospective analysis of S15 expression in biopsy samples collected at the time of initial screening of patients in the Phase 2 portion of our NC318 trial. Of the evaluable biopsies collected, 13% of the patients enrolled had S15-positive tumors. These biopsies showed that the selection criterion did not result in enough S15-positive patients for us to effectively evaluate the activity of NC318 in S15-positive tumors. We are modifying the ongoing Phase 2 portion of the trial for S15 selection and expect to begin pre-selecting patients for enrollment based on S15 expression in the second quarter of 2021 after the assay we have selected for evaluating S15 expression has been validated under the Clinical Laboratory Improvements Amendment, or CLIA. We anticipate the assay and the selection of S15 positive patients will allow us to assess response rates in patients selected for S15 positivity. As of December 2020, NC318 continued to be well tolerated in the Phase 2 portion of the trial, with primarily mild or moderate TRAEs. The only observed severe or higher grade TRAE in the Phase 2 portion was a grade 3-4 TRAE infusion reaction in one patient. While we no longer plan to initiate a study of NC318 in combination with chemotherapy at this time, we believe that scientific evidence supports a combination of NC318 with anti-PD-1 therapy. In the second quarter of 2021, Yale plans to initiate a Phase 2 IIT of NC318 in combination with pembrolizumab, an anti-PD-1, in NSCLC patients. We have exclusive worldwide rights to NC318.

S15 Background

S15 is a member of the sialic acid-binding immunoglobulin lectins, or Siglec, family, a distinct subgroup of the immunoglobulin superfamily of proteins. Siglecs are expressed on most white blood cells of the immune system, except for T cells. Siglecs recognize and bind to a sugar structure called sialic acid that coats proteins and fatty acids found on the surface of all mammalian cells. This binding can affect cell signaling on immune cells. Several Siglecs play key roles in helping immune cells distinguish between self and non-self and modulating immune responses. In 2015, Dr. Chen discovered the immunosuppressive properties of S15 using the TCAA. S15 is expressed on tumor cells and, importantly, on M2 macrophages, which are highly immunosuppressive in the TME.

S15 molecules on M2 macrophages, as well as on tumors themselves, appear to interact with unidentified receptors on T cells and inhibit T cell proliferation and functions, leading to decreased anti-tumor immune response. It also appears that S15 interacts with myeloid cells to promote their survival and differentiation so that they contribute to the overall immunosuppressive tumor environment through production of cytokines, such as IL-6, IL-1β and TNF-α, that are tumor-promoting and immunosuppressive in the context of the TME. As shown in the figure below, the presence of S15 on either tumor cells or M2 macrophages can lead to an immunosuppressive TME, resulting in tumor growth.

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S15 is Highly Immunosuppressive in the TME

The mechanism of action of NC318 prevents immune suppression caused by S15 and promotes anti-tumor activity. As the figure below shows, by targeting M2 macrophages, S15-induced myeloid cells and S15-positive tumors, NC318 is engineered to decrease inflammatory cytokines associated with enhanced tumor growth, promote T cell proliferation and restore T cell function, which we believe will reduce and kill tumors.

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NC318 is Designed to Block Immunosuppressive Activity Induced by S15

Phase 1/2 Clinical Trial

In October 2018, we initiated the Phase 1 portion of a Phase 1/2 clinical trial to evaluate NC318 as a monotherapy in patients with advanced or metastatic solid tumors. This ongoing trial is an open-label Phase 1/2 clinical trial designed to assess the safety and tolerability of NC318, to define the maximum tolerable dose and/or pharmacologically active dose and to assess preliminary efficacy. Patients receive NC318 on day one of each cycle. We initiated the trial with 14-day cycles; however, over the course of the trial we expect to continue to evaluate alternate doses and dose administration schedules depending on pharmacokinetics, pharmacodynamics, biomarker data, safety results and feedback from investigators. The trial is being conducted in two phases.

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The Phase 1 portion was designed to determine the pharmacologically active dose, defined as the dose that provides a maximal biologic effect, such as an increase in biomarkers of immune activation or a reduction of biomarkers associated with immune suppression, and/or the maximum tolerable dose of NC318, including defining the optimal dose administration schedule and the maximum number of tolerated doses. We completed enrollment of the Phase 1 portion of the trial in August 2019 and dosed 49 patients across seven dose cohorts: 8 mg, 24 mg, 80 mg, 240 mg, 400 mg, 800 mg and 1,600 mg, the last of which was added to the trial because a maximum tolerated dose had not been reached through 800 mg. The most common tumors in the Phase 1 portion of the Phase 1/2 trial were NSCLC (13 patients), ovarian (7 patients), melanoma (7 patients), breast (4 patients) and colorectal (3 patients). Enrolled patients had all been subject to previous cancer treatments, with a median of three prior therapies, and all 13 NSCLC patients were PD-1 refractory and had been treated with a median of four prior therapies.

Preliminary data from the Phase 1 portion were presented in November 2019 at the SITC annual meeting and updated data were announced in December 2020. As of December 17, 2020, NC318 had been well tolerated in the Phase 1 portion of the trial and only one dose-limiting toxicity, a grade 3 pneumonitis at the highest dose level, had been observed. Treatment-related adverse events experienced by more than 5% of patients as of that date were diarrhea, infusion reactions, fatigue, headaches, pruritis, elevated amylase and elevated lipase. Most treatment-related adverse events were easily manageable, asymptomatic or mild or moderate, with the exception of one case of grade 3 episcleritis/uveitis at the 400 mg dose level that resolved after steroid therapy and two cases of grade 3 pneumonitis (one at the 400 mg dose level and one at the 1,600 mg dose level). We also observed two grade 1 cases of vitiligo (one at the 80 mg dose level and one at the 400 mg dose level) that, along with other immune-related adverse events including diarrhea, elevated amylase and lipase, pruritis, episcleritis/uveitis and pneumonitis, indicate NC318’s activity as a modulator of the immune system.

Data from the Phase 1 portion of the trial indicate activity in multiple tumor types, including durable stable disease in patients with NSCLC, endometrial cell cancer, ovarian cancer, squamous cell carcinoma, Merkel cell cancer, and head and neck cancer. As of December 17, 2020, durable responses observed include one complete response, which remained ongoing at 104 weeks, and one partial response, which remained ongoing at 78 weeks, both in NSCLC patients, as well as 10 patients with stable disease, which remained ongoing for six months or more. The patient with the complete response had multiple lesions prior to treatment with NC318, including two lesions that were at least 10 mm. Among the 10 patients with stable disease, four patients have NSCLC with stable disease for six months or more.

We began enrolling patients in the Phase 2 portion of the Phase 1/2 clinical trial of NC318 in October 2019. The Phase 2 portion of the trial is an open-label trial designed to detect a relevant efficacy signal, or response rate, for each tumor type at a 400 mg dose administered every two weeks. In this portion, we planned to enroll up to 100 patients with tumor types that have been shown to have elevated S15 expression, including NSCLC, ovarian cancer, HNSCC and TNBC. In the Phase 2 portion, patients were initially selected based on tumors with a PD-L1 TPS of less than 50%. S15 expression will be analyzed retrospectively in all pretreatment biopsies successfully obtained from the Phase 2 patients. The primary endpoints for the Phase 2 portion of the trial are safety and tolerability, and secondary endpoints include response rate, progression-free survival, duration of response and overall survival.

In July 2020, we reported a confirmed partial response in a head and neck squamous cell carcinoma patient, which supported advancing that indication into the second stage of the Simon 2-stage trial. In addition, at the time, we reported that at that time we would not progress the NSCLC and ovarian cancer cohorts to the second stage of the Simon 2-stage trial. In December 2020, we completed a retrospective analysis of S15 expression in biopsy samples collected from the Phase 2 patients at their initial screening. Of the evaluable biopsies collected, 13% of the patients enrolled had S15-positive tumors. These biopsies showed that the selection criterion of PD-L1 expression did not result in enough S15-positive patients for us to effectively evaluate the activity of NC318 in S15-positive tumors. We are modifying the ongoing Phase 2 portion of the trial for S15 selection and expect to begin pre-selecting patients for enrollment based on S15 expression in the second quarter of 2021 after the assay we have selected for evaluating S15 expression has been validated under the Clinical Laboratory Improvements Amendment, or CLIA. We anticipate the assay and the selection of S15 positive patients will allow us to assess response rates in patients selected for S15 positivity. As of December 2020, NC318 continued to be well tolerated in the Phase 2 portion of the trial, with primarily mild or moderate TRAEs. The only observed severe or higher grade TRAE in the Phase 2 portion was a grade 3-4 TRAE infusion reaction in one patient.

Phase 2 Combination Clinical Trial

We believe scientific evidence supports a combination with anti-PD-1 therapy. In the second quarter of 2021, Yale plans to initiate a Phase 2 IIT of NC318 in combination with pembrolizumab, an anti-PD-1, in patients with NSCLC.

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We understand that the trial is designed with both monotherapy arms to evaluate safety and responses to NC318 alone, and combination arms to evaluate the safety of the combination with pembrolizumab and responses to the combination. At this time, we no longer plan to initiate a study of NC318 in combination with chemotherapy.

NC410

NC410 is a fusion protein of LAIR-2, a naturally occurring soluble version of and decoy protein for LAIR-1, and is designed to block immune suppression mediated by LAIR-1. Multiple preclinical studies support our understanding that eliminating or blocking the binding of LAIR-1 restores normal immune function in multiple immune cells. Our translational work has shown that NC410 blocks the interaction of LAIR-1 with its binding partners, thereby promoting T cell function and dendritic cell activity to contribute to restoring anti-tumor immune activity. Consistent with our strategy, we believe NC410 has the potential to address the needs of patients who are not adequately addressed by currently available therapies. The FDA accepted our IND in the first quarter of 2020 and we initiated the Phase 1 portion of a Phase 1/2 clinical trial in patients with advanced or metastatic solid tumors in June 2020 after a temporary delay due to the COVID-19 pandemic. The Phase 1 dose-escalation portion of this open-label trial is designed to evaluate the safety and tolerability of NC410, and to determine its pharmacologically active and/or maximum tolerated dose. After a recommended dose for the Phase 2 portion of the trial is determined, the efficacy of NC410 will be evaluated in select tumor types. We expect to announce data from the Phase 1 portion of this trial in the second half of 2021. We have exclusive worldwide rights to NC410.

Background of LAIR Pathway in Cancer

LAIR-1 is a co-inhibitory receptor expressed on T cells and several other immune cell subsets, including monocytes, macrophages and dendritic cells. Its binding partners include certain types of collagen and complement component 1q, or C1q.

Under normal conditions, collagen forms a scaffold to provide strength and structure to tissues. C1q is part of the innate immune system to protect the host from infection and other foreign agents. Both collagen and C1q are highly upregulated and expressed under pathologic conditions, such as in the TME and in the immune organelles close to the tumor site known as lymph nodes, which are important sites for mounting immune responses to the tumor. However, binding of LAIR-1 to collagen or C1q leads to immune suppression. Our preclinical studies have shown that LAIR-1 and LAIR-2 bind to similar ligands, including collagen and C1q. LAIR-2, which is a secreted protein as opposed to a membrane-bound protein like LAIR-1, binds to the same regions of these ligands with stronger affinity than LAIR-1. However, because LAIR-2 does not induce immune suppression when binding to these ligands, LAIR-2 functions as an efficient decoy for LAIR-1.

Under the harsh conditions of the TME, collagen and C1q are overexpressed as a membrane protein on many types of tumor cells and in the ECM surrounding the tumor. This increased expression of collagen and C1q, combined with insufficient levels of natural LAIR-2, leads to increased binding of LAIR-1, resulting in immune suppression, tumor immune evasion and tumor growth.

NC410 is a novel immunotherapeutic protein that was developed to block LAIR-1-mediated immune suppression by mimicking the natural decoy effects of LAIR-2. Our approach of using NC410 as a therapeutic is intended to take advantage of the natural LAIR-2 regulatory system in humans, which maintains human immune function under normal non-pathologic conditions.

The mechanism of action of NC410 prevents immune suppression caused by LAIR-1 binding to collagen or C1q and promotes anti-tumor immune activity. As the figure below shows, when LAIR-2 and NC410 are present in the TME, they bind to collagen or C1q preferentially compared to LAIR-1 given their higher binding affinity. This has the effect of blocking the collagen or C1q from binding to LAIR-1, which otherwise would have resulted in an immunosuppressive effect. By blocking this interaction with LAIR-1 and its binding partners, T cell function and dendritic cell activity is promoted in order to restore anti-tumor immune activity.

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NC410 is Designed to Prevent Immune Suppression Caused by LAIR-1

Preclinical Data

We have conducted multiple preclinical studies to assess the activity of NC410 across a variety of preclinical models. These studies support our understanding that eliminating or blocking the binding of LAIR-1 to collagen or C1q can restore normal immune function in multiple immune cells, including T cells and myeloid cells, resulting in activation of T cells and anti-tumor immunity.

We have observed in vitro with human cells that using NC410 to block LAIR-1 from binding with collagen or C1q reverses immune suppression and restores normal immune cell function for both peripheral blood monocytes, including T cells, and myeloid cells. In one study of peripheral blood monocytes, we added 0 μg/mL, 10 μg/mL and 100 μg/mL of NC410 to 20 μg/mL of collagen peptide in vitro. Similarly, we also evaluated the addition of 0 μg/mL, 2.5 μg/mL and 10 μg/mL of NC410 to 10 μg/mL of C1q on human myeloid cells. As shown in the figures below, NC410 promoted the activation of immune cells in the presence of high levels of collagen in peripheral blood monocytes and high levels of C1q in myeloid cells in a dose-dependent manner.

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In another preclinical study with human cells, we observed that NC410 promoted increases in the cytokines IL-2 and TNF-α, as shown in the left-hand panel of the following figure, which is indicative of increased immune function. In addition, simultaneous in vivo injections of NC410 and human T cells in immune-deficient mice resulted in increased amounts of CD4+ and CD8+ T cells, as shown in the right-hand panel of the figure below.

Through multiple preclinical studies in several additional tumor models, we observed that eliminating or blocking LAIR-1-mediated immune suppression prolonged survival. In addition, anti-tumor activity of NC410 correlated with a local increase in antigen-specific T cells in the TME in vivo using an engineered mouse model to measure localized antigen-specific responses. We used an antigen-specific tumor model of EL4, a murine lymphoma cell line. We measured the weight of the animals daily as a proxy for tumor growth. As shown in the figure below, we observed that mice treated with NC410 had smaller tumors than mice treated with a control, suggesting that NC410 has potential anti-tumor activity.

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NC410 Showed Anti-Tumor Activity

We also measured T cells specific for ovalbumin, and as shown in the figures below, we observed systemic and local increases, as measured in the spleen and lymph node, respectively, in mice treated with NC410 compared to those treated with control. We believe that these data support an immune response in and around the TME.

NC410 Increased T Cells Both Systemically and Locally

In addition, when human PBMCs were implanted into mice with mouse P815 mastocytoma tumor cells, we observed that NC410 mediated an increase in human T cells in vivo and that the increase in human T cells correlated with a delay in tumor growth. As shown in the figures below, NC410 increased the number of CD8+ T cells on day 13 in a dose-dependent manner and that increase corresponded to a decrease in tumor volume. To mimic human cancers, human PBMCs were also implanted into mice with human HT29 colon adenocarcinoma cells to test efficacy in a human tumor model. NC410 promoted an anti-tumor response against the human HT29 tumor cell line in a dose-dependent manner, as shown in the figure below.

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Mouse P815 Mastocytoma Model

Human HT29 Colon Adenocarcinoma Model

NC410 Decreased Tumor Volume

Our Clinical Development Plan for NC410

We and others have analyzed genomic and protein databases and observed that LAIR-1 expression levels negatively correlate with survival rates for several cancers, including brain, renal, colorectal, glioma, lung, urothelial and ovarian cancers. These analyses support possible targeting of these tumor types as primary indications for therapeutic treatment with NC410. We are conducting expansive screening efforts on tumor samples from different solid tumor types to identify tumors that express LAIR-1 on the surface of either cancer cells or infiltrating immune cells to guide our ultimate selection of patients for the Phase 2 portion of the Phase 1/2 clinical trial.

The FDA accepted our IND in the first quarter of 2020 and we initiated the Phase 1 portion of a Phase 1/2 clinical trial in patients with advanced or metastatic solid tumors in June 2020 after a temporary delay due to the COVID-19 pandemic. The Phase 1 dose-escalation portion of this open-label trial is designed to evaluate the safety and tolerability of NC410, and to determine its pharmacologically active and/or maximum tolerated dose. After a recommended dose for the Phase 2 portion of the trial is determined, the efficacy of NC410 will be evaluated in select tumor types. We expect to

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announce data from the Phase 1 portion of this trial in the second half of 2021. We have exclusive worldwide rights to NC410.

NC762

NC762 is a monoclonal antibody that binds specifically to human B7 homolog 4 protein, or B7-H4, a protein expressed on multiple tumor types. We believe NC762 acts by inhibiting tumor cell growth. While the inhibitory effect on tumor growth does not appear to be dependent upon T cells, we believe NK cells may contribute to enhanced anti-tumor activity mediated by NC762. We have observed in preclinical studies that NC762 inhibits the growth of human melanoma tumors in mice, and we believe that NC762 has the potential to treat multiple tumor types. We submitted an IND to the FDA for NC762 in the first quarter of 2021, and we intend to initiate a Phase 1/2 clinical trial of NC762 in patients with lung cancer, HER2+ breast cancer, and ovarian cancer, and potentially other tumor types in the second quarter of 2021. We anticipate initial Phase 1 data in mid-2022. In connection with our development work for NC762, we have developed an immunohistochemistry, or IHC, assay to test tumors for B7-H4 positivity and have performed screening of multiple tumor types. We have validated the assay for use in clinical trials, and we intend to use it in the Phase 1/2 clinical trial to select patients for treatment through patient biopsies. In addition to theplanned clinical trial, we plan to continue pre-clinical work including to identify tumor indications most likely to respond to NC762. We have exclusive worldwide rights to NC762.

B7-H4 Background

B7-H4 is a cell surface protein expressed on multiple tumor types, including non-small cell lung cancer, ovarian cancer, breast cancer and hepatocellular carcinoma, and on tumor-associated macrophages, and shows limited expression in most normal tissues. B7-H4 was initially discovered in 2003 in the Mayo Clinic lab of our scientific co-founder Dr. Lieping Chen. It is a member of the same family of co-inhibitory checkpoint proteins as B7-H1, known as PD-L1, which was also discovered by Dr. Chen's lab, and PD-L2. See "Immuno-Oncology Background."B7-H4 has been shown in published articles to negatively regulate T cell immune response, inhibit cytokine production, suppress antigen-presenting cells, promote immune escape and play a role in tumorigenesis and tumor development. Expression of B7-H4 in tumor cells has been shown in pre-clinical research and published articles to be correlated with reduced overall survival, and B7-H4 has generally non-overlapping expression with both PD-L1 and S15. Given the low expression of B7-H4 on healthy cells and the results of our preclinical cross-tissue reactivity studies (see "-Preclinical Data" below), we believe that anti-B7-H4 treatment is unlikely to inadvertently cause adverse effects of tissues and pathways outside of B7-H4 positive tumors and tumor-associated macrophages.

NC762 is a novel immunotherapeutic protein that binds to B7-H4 on the cell surface of tumors. We believe NC762 acts by inhibiting tumor cell growth and killing tumor cells, including by enhancing immune response. Preclinical research indicates that the primary mechanism of action of NC762 inhibits tumor cell growth independently of immune cell infiltration into the tumor microenvironment, meaning that it should not require the use of a separate toxic payload linked to the antibody as part of treatment. NC762 was also designed to enhance immune response by allowing for enhanced binding to CD16a/FcγRIIIa, a receptor found on the surface of natural killer, or NK cells, in order to increase antibody-dependent cell-mediated cytotoxicity, or ADCC, activity. ADCC is a process by which effector cells such as NK cells interact with and kill antibody-coated target cells such as tumor cells. Extensive in vivo modeling data using human melanoma in mouse models expressing B7-H4 indicates that NC762's anti-tumor effect may be enhanced in the presence of NK cells, but that it has an anti-tumor impact even in the absence of peripheral blood mononuclear cells (comprising

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several types of white blood cells including NK cells), and that the primary mechanism by which NC762 inhibits tumor growth is therefore ADCC-independent.

Preclinical studies did not raise any significant safety concerns with NC762. Specifically, dosage of cynomolgus monkeys at doses up to 100 mg/kg did not result in any observed adverse effects. A tissue cross-reactivity study of 37 tissues from three individuals found no signals that NC762 binds to tissues other than tumor tissue, which indicates that NC762 is not expected to bind off target and harm cells, tissues and pathways outside of B7-H4 positive tumors and tumor-associated macrophages. In addition, an analysis of changes in serum cytokines in vitro leads us to believe that treatment with NC762 is unlikely to trigger overactive immune responses known as cytokine storms that can have harmful effects.

We have developed an IHC assay using a commercially purchased antibody to test tumors for B7-H4 positivity, and have performed screening of multiple tumor types. We intend to use this assay to select patients for treatment through patient biopsies, including in the Phase 1 dose expansion portion of our planned Phase 1/2 clinical trial, and have validated the assay for use in clinical trials. We also intend to retroactively use immunophenotyping and serum analysis as part of our clinical trials to determine the types of cells present after treatment in order to identify biomarkers, to look for signs of clinical activity, and to help determine the likelihood of responsiveness to treatment with NC762.

Preclinical Data

To demonstrate that NC762's mechanism of action is independent of ADCC, we inoculated immunodeficient mice with human melanoma cells expressing B7-H4 and treated the mice with either NC762 or a version of NC762, called NC762.FES, that we modified to significantly reduce its ability to bind to immune cell receptors, which essentially eliminated any ADCC activity that may be caused by NC762. Mice treated with both versions of NC762 experienced significantly reduced tumor growth as compared to the control group (left panel). The data therefore indicates that NC762 mediated inhibitory activity on tumor growth in vivo independent of ADCC activity. The data also shows that NC762's anti-tumor effect may be enhanced in the presence of NK cells (middle panel), but that T-cells are not required (right panel).

Our Clinical Development Plan for NC762

We and others have observed that B7-H4 is widely expressed on a number of cancers, including non-small cell lung cancer, ovarian cancer, breast cancer and hepatocellular carcinoma. These analyses support possible targeting of these

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tumor types as primary indications for therapeutic treatment with NC762. Using a B7-H4-specific antibody that we identified and optimized for IHC analyses, we are currently staining various cancer tissues to gain a more comprehensive and definitive understanding of B7-H4 prevalence in both primary and metastatic lesions.

We submitted an IND to the FDA for NC762 in the first quarter of 2021, and we intend to initiate a Phase 1/2 clinical trial of NC762 in patients with lung cancer, HER2+ breast cancer, and ovarian cancer, and potentially other tumor types in the second quarter of 2021. The Phase 1 dose-escalation portion of this open-label trial is being designed to evaluate the safety and tolerability of NC762, and to determine its pharmacologically active and/or maximum tolerated dose. After a recommended dose for the Phase 2 portion of the trial is determined, the efficacy of NC762 will be evaluated in select tumor types.

Our Research Programs

In addition to NC318, NC410, and NC762, we are also pursuing preclinical evaluation of other potential novel immunomodulatory molecules.

Our FIND-IO Discovery Engine

Our FIND-IO platform uses proprietary approaches to functionally assess immune pathways in both primary immune cells and established cell lines from immune lineages, including T cell subsets, monocytes, macrophage subpopulations, dendritic cells, cancer cell lines, and cells isolated from diseased patients. This platform allows us to identify proteins that can be targeted with novel immunomedicines to repair and maintain anti-tumor immunity. We have identified multiple novel targets using our FIND-IO platform, including those for which certain of our research programs are being designed to target.

There are three integrated components to our FIND-IO platform. The first component consists of gene libraries, also called target libraries, comprising genes that are expressed and queried for immune or other functions. Our target libraries are composed of genes that encode a structurally diverse set of protein molecules and that are either inserted into the plasma membrane on the host cell surface or secreted outside of the host cell. The second component encompasses a variety of immune and non-immune cell types, called responder cells, used to evaluate the functional effects of the target libraries. The immune responder cell types include primarily immune cells obtained from human volunteers and multiple immune cell lines that have been grown in culture, and the non-immune responder cell types include tumor cell lines. The third component utilizes a broad set of outputs indicative of whether a newly discovered target inhibits or stimulates functional immune responses. We utilize a cube to illustrate these three components as shown in the figure below.

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Unlike other screening platforms that often focus on a single parameter or cell type, our approach uses a broad search across multiple cell types and multiple functions and is purposefully designed to produce physiologically relevant results. Although the orchestration of an immune response is complex and dynamic within the TME, we have designed the FIND-IO platform to be simple yet functional. The platform integrates multiple components to assess immune function resulting from cellular interactions in order to identify new immune modulators in an approach that mimics physiological interactions. The goal is to identify proteins that can be targeted with immunomedicines, such as monoclonal antibodies or fusion proteins. Potential targets that are preliminarily identified through the FIND-IO platform undergo reproducible, robust, relevant and comprehensive characterization resulting in functional readouts that improve the likelihood of developing immunomedicines against novel immune modulatory molecules. This approach is intended to meet our goal of extending beyond the success of current immunotherapies to treat patients who are not adequately addressed by currently available therapies and to enhance overall survival in these patients.

The first step in the application of our FIND-IO platform is to transfect the target library into a host cell on a gene-by-gene basis. The host cells then express the library genes and the proteins are present on the cell surface or secreted into the surrounding space. In addition, the host cell has been engineered to express a reporter of transcriptional activity associated with a cellular function. For example, we engineer the host cells to report transcription factor activity in a cellular pathway by linking a selected DNA with a different fluorescent reporter, such as red fluorescent protein, or RFP. Thus, if the library gene expresses a protein that can signal via the applicable pathway, then the RFP gene is transcribed, expressed as a protein and the cell will glow red. The immune or non-immune responder cells are also engineered to express a reporter of transcriptional activity associated with a cellular function. For example, we engineer the responder cells to report transcription factor activity in a cellular pathway by linking a selected DNA with a fluorescent reporter such as green fluorescent protein, or GFP. Therefore, when transcription occurs in the responder cell, the GFP gene is transcribed, expressed as a protein and the cell will glow green. The red and/or green glow of the cells can be measured quantitatively. This is called bi-directional signaling as the FIND-IO platform was designed to look at signaling events in the host cells as well as the immune and non-immune responder cells.

The FIND-IO platform allows us to select and screen multiple immune and non-immune responder cell types, including T cells, myeloid cells, leukemia cells, epithelial cancer cells, plasma B cells and multiple myeloma cells, as well as primary immune cells from healthy donors. For each of these cell types, we undertake functional screening, including activity of many reporter pathways, effector function activity and effects on cell death, in order to identify novel immunomodulatory targets with common or differentiating effects across multiple cell types.

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Additionally, with our FIND-IO technology we can test for combination screens to search for synergistic or additive combinations with certain pathways, including immune checkpoint pathways, like the PD-1/PD-L1 pathway, that are currently approved for treating cancer patients. We expect that this screening will help with the identification of potential combination treatments to enhance response rates.

The goal of our FIND-IO platform is to sustain a pipeline of novel immunomedicines that restore normal immune function to treat cancer and other immune-related diseases. While we are primarily focused on cancer treatment, we believe that our proprietary technology, our approach, our understanding of biological pathways and the convergence of immunology and inflammation provide us with opportunity to explore novel immunomedicines for other significant unmet medical needs. To maximize the full potential of our platform and expertise, we are expanding the functional screening approach of our FIND-IO platform to the identification of novel targets in autoimmunity and inflammation, where we are using this approach to develop our FIND-AI platform, as well as in neuro-inflammatory diseases.

Our Collaboration Agreements

Agreements with Yale University

License Agreement with Yale

We entered into a license agreement with Yale, or the Yale Agreement, in December 2015 pursuant to which we obtained an exclusive, royalty-bearing, sublicensable worldwide license to products that either incorporate certain licensed patents used in the discovery of targets or arise out of research and development of Dr. Chen’s laboratory at Yale, including S15, and amended the Yale Agreement effective January 2020. We are obligated to pay Yale low single-digit royalties on sales of products, including NC318, that are either covered by the patents licensed to us under the Yale Agreement or arise out of Dr. Chen’s laboratory as a result of research under the corporate sponsored research agreement described below, subject to minimum annual royalty payments in the low to mid hundreds of thousands of dollars. Until we are required to pay royalties under the Yale Agreement, we must pay an annual license maintenance fee to Yale in the mid to high tens of thousands of dollars. In addition, with respect to each product covered by licenses under the Yale Agreement, we are obligated to pay Yale milestone payments upon (i) the initiation of each of a Phase 1 clinical trial, Phase 2 clinical trial and Phase 3 clinical trial or a pivotal trial, (ii) first commercial sale in the United States and (iii) first commercial sale in China, Japan or a major European country, in an aggregate amount of up to $2,975,000. The term of the license agreement with Yale runs, on a country-by-country basis, until the later of the expiration of all licensed patents or 10 years from the first commercial sale in such country, unless Yale has cause to terminate earlier for our material breach of the license, bankruptcy or if we or any sublicensee bring a challenge against Yale in relation to the licensed patents. We have the right to terminate the Yale Agreement for Yale’s material breach or at any time during the term with six months’ prior written notice to Yale.

Sponsored Research Agreement with Yale

In connection with the Yale Agreement, we also entered into a corporate sponsored research agreement, or the SRA, with Yale, pursuant to which we have agreed to provide an aggregate of up to $15 million to fund a research program aimed at discovering new targets for immunomedicines. The research program is under the direction and supervision of Dr. Chen. Pursuant to the SRA, we have the option to add any patents invented pursuant to the research program as a licensed patent under the Yale Agreement and the right to obtain a royalty-bearing, exclusive, worldwide license to any such patents. If we do not exercise our option within the exercise period, Yale is permitted to license any such patents to any third party. The SRA has been extended for one year and will expire on December 31, 2021. We have the option of further extending the term upon mutual agreement with Yale. We can terminate the SRA at any time upon 90 days’ written notice to Yale. Yale can terminate for an uncured breach or with 90 days’ written notice for cause.

Former Research and Development Collaboration with Lilly

Effective March 3, 2020, Eli Lilly and Company, or Lilly, terminated the multi-year research and development collaboration agreement, or the Lilly Agreement, without cause that we had entered into with Lilly in November 2018 and that focused on the discovery and development of immunomedicines for oncology using our FIND-IO platform. Under the agreement, we had granted Lilly the exclusive option to obtain worldwide exclusive licenses to research, develop, manufacture and commercialize multiple compounds and products directed to oncology targets identified through our research collaboration.

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Manufacturing

We have a purpose-built, dedicated, state-of-the-art cGMP manufacturing facility that utilizes single-use technology to support our pipeline and advance our product candidates into and through clinical development. The facility had an initial production capacity of 1,000 liters, but that capacity was expanded in 2020 to 2,000 liters in order to support multiple product candidates. The investment in our manufacturing facility is a critical element of our ability to quickly identify whether a candidate is likely to be successful and to facilitate an efficient development path. While other companies may need to work with third parties for antibody production, we can do so in our own facility. Compared to working with third-party manufacturers, we believe our facility provides better quality assurance, greater control in scheduling and prioritizing manufacturing activities and enhanced capital efficiency. We are currently manufacturing all of the drug supply for our preclinical studies and our Phase 1/2 clinical trials of NC318, NC410, and NC762 and intend to provide the drug supply for future clinical trials of NC318, NC410, and NC762. As we advance the development of our growing pipeline of product candidates, we will continue to evaluate the merits of further expanding our internal manufacturing capabilities, including for the production of commercial drug supply, as compared to collaborating with third-party manufacturers.

Competition

The biotechnology and pharmaceutical industries, and the immuno-oncology subsector, are characterized by rapid evolution of technologies, fierce competition and strong defense of intellectual property. We believe that our programs, platforms, technology, knowledge, experience and scientific resources provide us with competitive advantages, but we also face competition from pharmaceutical and biotechnology companies, academic institutions, governmental agencies and public and private research institutions, among others. Our competitors include larger and better funded biopharmaceutical, biotechnology and therapeutics companies, including companies focused on cancer immunotherapies, such as Amgen, Inc., AstraZeneca plc, Bristol-Myers Squibb Company, or BMS, Genentech, Inc., GlaxoSmithKline PLC, Merck & Co., Inc., Novartis AG, Pfizer Inc., Roche Holding Ltd and Sanofi S.A. Moreover, we may also compete with smaller or earlier-stage companies, universities and other research institutions that have developed, are developing or may be developing current and future cancer therapeutics.

Product candidates that we successfully develop and commercialize will compete with a range of therapies that are currently approved and any new therapies that may become available in the future. Key product features that would affect our ability to effectively compete with other therapeutics include the efficacy, safety and convenience of our products. Currently marketed oncology drugs and therapeutics range from traditional cancer therapies, including chemotherapy, to antibody-drug conjugates, such as Genentech Inc.’s Kadcyla, to immune checkpoint inhibitors targeting CTLA-4, such as BMS’ Yervoy, and PD-1/PD-L1, such as BMS’ Opdivo, Merck & Co.’s Keytruda and Genentech’s Tecentriq, to T cell-engager immunotherapies, such as Amgen’s Blincyto. In addition to these marketed therapies, numerous compounds are in clinical development for the potential treatment of cancer.

The availability of reimbursement from government and other third-party payors will also significantly affect the pricing and competitiveness of our products. Our competitors may also obtain FDA or other regulatory approval for their products more rapidly than we may obtain approval for ours, which could result in our competitors establishing a strong market position before we are able to enter the market.

Intellectual Property

Our commercial success depends in part on our ability to obtain and maintain proprietary protection for our products, methods and manufacturing processes, to operate without infringing the proprietary rights of others and to prevent others from infringing our proprietary rights. We rely on a combination of patent applications and trade secrets, as well as contractual protections, to establish and protect our intellectual property rights. We seek to protect our proprietary position by, among other things, filing patent applications in the United States and internationally. Our patent estate includes patent applications with claims relating to our product candidates, methods of use and manufacturing processes, and claims for potential future products and developments. As of December 31, 2020, our intellectual property portfolio includes, on a worldwide basis, 20 pending foreign patent applications relating to NC318, NC410, and NC762, two pending U.S. patent application relating to NC318, one pending U.S. patent application relating to NC410, and two pending U.S. patent applications relating to NC762, and additional pending patent applications for other discovery and research programs. Patents resulting from our patent applications for NC318 and NC410, if issued, are expected to expire beginning

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in 2037 absent any patent term adjustments or extensions and for NC762, if issued, are expected to expire beginning in 2039 absent any patent term adjustments or extensions.

In addition, as described above, under the Yale Agreement, we have an exclusive, royalty-bearing, sublicensable worldwide license from Yale for an intellectual property portfolio, including among other things patent applications relating to methods of use for S15 that covers the use of NC318 and one allowed patent relating to FIND-IO. Any patents from these patent applications, if issued, are expected to expire no earlier than 2036 absent any patent term adjustments or extensions.

For all patent applications, we determine strategy for claim scope on a case-by-case basis, taking into account advice of counsel and our business model and needs. We file patents containing claims for protection of all useful applications of our proprietary technologies and any products, as well as all new applications and/or uses we discover for existing technologies and products, based on our assessment of their strategic value. We continuously reassess the number and type of patent applications, as well as the pending and issued patent claims to ensure that maximum coverage and value are obtained for our processes and compositions, given existing patent office rules and regulations. Further, claims may be modified during patent prosecution to meet our intellectual property and business needs.

We also rely upon trade secrets, know-how and continuing technological innovation to develop and maintain our competitive position, including with respect to our FIND-IO platform. We seek to protect our proprietary technology and processes, in part, by confidentiality and invention assignment agreements with our employees, consultants, scientific advisors and other contractors. In addition, in the ordinary course of our business, we enter into agreements with other third parties for non-exclusive rights to intellectual property directed to other technologies that are ancillary to our business, including laboratory information management software and research and development tools. In addition, we have filed for trademark registration with the U.S. Patent and Trademark Office, or the USPTO, for “NextCure,” our logo and our FIND-IO platform.

Government Regulation

Government Regulation and Product Approval

The FDA and other regulatory authorities at federal, state and local levels, as well as in foreign countries, extensively regulate, among other things, the research, development, testing, manufacture, quality control, import, export, safety, effectiveness, labeling, packaging, storage, distribution, recordkeeping, approval, advertising, promotion, marketing, post-approval monitoring and post-approval reporting of biological products. Along with third-party contractors, we will be required to navigate the various preclinical, clinical and commercial approval requirements of the governing regulatory agencies of the countries in which we wish to conduct studies or seek approval or licensure of our product candidates. The processes for obtaining regulatory approvals in the United States and in foreign jurisdictions, along with subsequent compliance with applicable laws and regulations and other regulatory authorities, require the expenditure of substantial time and financial resources.

Government policies may change and additional government regulations may be enacted that could prevent or delay further development or regulatory approval of any product candidates, product or manufacturing changes, additional disease indications or label changes. We cannot predict the likelihood, nature or extent of government regulation that might arise from future legislative or administrative action.

Review and Approval for Licensing Biologics in the United States

In the United States, the FDA regulates our current product candidates as biological products, or biologics, under the Federal Food, Drug, and Cosmetic Act, or FDCA, the Public Health Service Act and associated implementing regulations. Biologics, like other drugs, are used for the treatment, prevention or cure of disease in humans. In contrast to small molecular weight drugs, which have a well-defined structure and can be thoroughly characterized, biologics are generally derived from living material (human, animal, or microorganism) are complex in structure, and thus are usually not fully characterized. Biologics include immunomedicines for cancer and other diseases.

Biologics are also subject to other federal, state and local statutes and regulations. The failure to comply with applicable statutory and regulatory requirements at any time during the product development process, approval process or after approval may subject a sponsor or applicant to administrative or judicial enforcement actions. These actions could

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include the suspension or termination of clinical trials by the FDA, the FDA’s refusal to approve pending applications or supplemental applications, withdrawal of an approval, Warning Letters or Untitled Letters, product recalls, product seizures, total or partial suspension of production or distribution, import detention, injunctions, fines, refusals of government contracts, restitution, disgorgement of profits, or civil or criminal investigations and penalties brought by the FDA, the Department of Justice, or the DOJ, or other governmental entities.

An applicant seeking approval to market and distribute a biologic in the United States must typically undertake the following:

From time to time, legislation is drafted, introduced and passed in Congress that could significantly change the statutory provisions governing the testing, approval, manufacturing and marketing of products regulated by the FDA. In addition to new legislation, FDA regulations and policies are often revised or interpreted by the agency in ways that may significantly affect our business and our products. It is impossible to predict whether further legislative changes will be enacted or whether FDA regulations, guidance, policies or interpretations will be changed or what the effect of such changes, if any, may be.

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Preclinical and Clinical Development

Before an applicant can begin testing the potential candidate in human subjects, the applicant must first conduct preclinical studies. Preclinical studies include laboratory evaluations of product chemistry, toxicity and formulation, as well as in vitro and animal studies to assess the potential safety and activity of the drug for initial testing in humans and to establish a rationale for therapeutic use. Preclinical studies are subject to federal regulations and requirements, including GLP regulations. The results of an applicant’s preclinical studies are submitted to the FDA as part of an IND.

An IND is a request for authorization from the FDA to administer an investigational new drug product to humans. An IND is an exemption from the FDCA that allows an unapproved drug to be shipped in interstate commerce for use in an investigational clinical trial. Such authorization must be secured prior to interstate shipment and administration of a biologic that is not subject of an approved BLA. In support of a request for an IND, applicants must submit a protocol for each clinical trial. Any subsequent protocol amendments must be submitted to the FDA as part of the IND.

Human clinical trials may not begin until an IND is effective. The IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA raises safety concerns or questions about the proposed clinical trial within the 30-day time period. In such a case, the IND may be placed on clinical hold and the IND sponsor and the FDA must resolve any outstanding concerns or questions before the clinical trial can begin. Submission of an IND therefore may or may not result in FDA authorization to begin a clinical trial.

The FDA may also place a clinical hold or partial clinical hold on such trial following commencement of a clinical trial under an IND. A clinical hold is an order issued by the FDA to the sponsor to delay a proposed clinical investigation or to suspend an ongoing investigation. A partial clinical hold is a delay or suspension of only part of the clinical work requested under the IND. For example, a specific protocol or part of a protocol is not allowed to proceed, while other protocols may do so. No more than 30 days after imposition of a clinical hold or partial clinical hold, the FDA will provide the sponsor a written explanation of the basis for the hold. Following issuance of a clinical hold or partial clinical hold, an investigation may only resume after the FDA has notified the sponsor that the investigation may proceed. The FDA will base that determination on information provided by the sponsor correcting the deficiencies previously cited or otherwise satisfying the FDA that the investigation can proceed.

Clinical trials involve the administration of the investigational product to human subjects under the supervision of qualified investigators in accordance with cGCP regulations, which include the requirement that all research subjects provide their informed consent for their participation in any clinical trial. Clinical trials are conducted under protocols detailing, among other things, the objectives of the trial, the parameters to be used in monitoring safety and the effectiveness criteria to be evaluated. A separate submission to the existing IND must be made for each successive clinical trial conducted during product development and for any subsequent protocol amendments.

A sponsor may choose, but is not required, to conduct a foreign clinical study under an IND. When a foreign clinical study is conducted under an IND, all FDA IND requirements must be met unless waived. When the foreign clinical study is not conducted under an IND, the sponsor must ensure that the study complies with cGCP regulations in order to use the study as support for an IND or application for marketing approval, including cGCP regulations, including review and approval by an independent ethics committee and informed consent from subjects.

Furthermore, an independent IRB for each site proposing to conduct the clinical trial must review and approve the plan for any clinical trial and its informed consent form before the clinical trial begins at that site, and must monitor the trial until completed. Regulatory authorities, the IRB or the sponsor may suspend a clinical trial at any time on various grounds, including a finding that the subjects are being exposed to an unacceptable health risk or that the trial is unlikely to meet its stated objectives.

Some trials also include oversight by an independent group of qualified experts organized by the clinical trial sponsor, known as a data safety monitoring board, or DSMB. DSMBs provide authorization for whether or not a trial may move forward at designated check points based on access to certain data from the trial and may halt the clinical trial if it determines that there is an unacceptable safety risk for subjects or other grounds, such as no demonstration of efficacy. Other grounds for suspension or termination may be made based on evolving business objectives and/or competitive climate. There are also requirements governing the reporting of ongoing clinical trials and clinical trial results to public registries.

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Clinical Trials

For purposes of BLA approval, clinical trials are typically conducted in the following sequential phases:

These phases may overlap or be combined. In some cases, the FDA may require, or companies may voluntarily pursue, additional clinical trials after a product is approved to gain more information about the product, referred to as Phase 4 trials. Such post-approval trials, when applicable, are conducted following initial approval, typically to develop additional data and information relating to the biological characteristics of the product and treatment of patients in the intended therapeutic indication.

Progress reports detailing the results of the clinical trials must be submitted at least annually to the FDA and more frequently if serious adverse events occur. In addition, IND safety reports must be submitted to the FDA for any of the following: suspected serious and unexpected adverse reactions; findings from epidemiological studies, pooled analysis of multiple studies, animal or in vitro testing, or other clinical studies, whether or not conducted under an IND, and whether or not conducted by the sponsor, that suggest a significant risk in humans exposed to the drug; and any clinically important increase in the rate of a serious suspected adverse reaction over such rate listed in the protocol or investigator brochure.

Our planned clinical trials may not be completed successfully within any specified period, or at all. Furthermore, the FDA or the sponsor may suspend or terminate a clinical trial at any time on various grounds, including a finding that the research subjects are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical trial at its institution, or an institution it represents, if the clinical trial is not being conducted in accordance with the IRB’s requirements or if the drug has been associated with unexpected serious harm to patients. The FDA will typically inspect one or more clinical sites to assure compliance with cGCP and the integrity of the clinical data submitted.

During clinical development, the sponsor often refines the indication and endpoints on which the BLA will be based. For endpoints based on patient-reported outcomes, or PROs, and outcome reported outcomes, or OROs, the process typically is an iterative one. The FDA has issued guidance on the framework it uses to evaluate PRO instruments. Although the agency may offer advice on optimizing PRO and ORO instruments during the clinical development process, the FDA usually reserves final judgment until it reviews the BLA.

Concurrent with clinical trials, companies often complete additional animal studies, and develop additional information about the chemistry and physical characteristics of the drug and finalize a process for manufacturing the product in commercial quantities in accordance with cGMP. The manufacturing process must be capable of consistently producing quality batches of the drug candidate and, among other things, must develop methods for testing the identity, strength, quality, purity and potency of the final drug. Additionally, appropriate packaging must be selected and tested, and stability studies must be conducted to demonstrate that the drug candidate does not undergo unacceptable deterioration over its shelf life.

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BLA Submission and Review

Assuming successful completion of all required clinical testing in accordance with all applicable regulatory requirements, an applicant may submit a BLA requesting licensing to market the biologic for one or more indications in the United States. The BLA must include the results of product development, nonclinical studies and clinical trials; detailed information on the product’s chemistry, manufacture, controls and proposed labeling. Under the Prescription Drug User Fee Amendments, a BLA submission is subject to an application user fee, unless a waiver or exemption applies.

The FDA will initially review the BLA for completeness before accepting it for filing. Under the FDA’s procedures, the agency has 60 days from its receipt of a BLA to determine whether the application will be accepted for filing and substantive review. If the agency determines that the application does not meet this initial threshold standard, the FDA may refuse to file the application and request additional information, in which case the application must be resubmitted with the requested information and review of the application delayed.

With certain exceptions, BLAs must include a pediatric assessment, generally based on clinical trial data, of the safety and effectiveness of the biologic in relevant pediatric populations. Under certain circumstances, the FDA may waive or defer the requirement for a pediatric assessment, either at the sponsor’s request or by the agency’s initiative.

After the BLA is accepted for filing, the FDA reviews the BLA to determine, among other things, whether a product is safe, pure and potent and if the facility in which it is manufactured, processed, packed or held meets standards designed to assure the product’s continued identity, strength, quality, safety, purity and potency. The FDA may convene an advisory committee to provide clinical insight on application review questions. Before approving a BLA, the FDA will typically inspect the facility or facilities where the product is manufactured. The FDA will not approve an application unless it determines that the manufacturing processes and facilities comply with cGMP and are adequate to assure consistent production of the product within required specifications. In addition, the FDA expects that all data be reliable and accurate, and requires sponsors to implement meaningful and effective strategies to manage data integrity risks. Data integrity is an important component of the sponsor’s responsibility to ensure the safety, efficacy and quality of its product or products.

The FDA will typically inspect one or more clinical sites to assure compliance with cGCP regulations before approving a BLA. If the FDA determines that the application, manufacturing process or manufacturing facilities are not acceptable, it will outline the deficiencies in the submission and often will request additional testing or information. Notwithstanding the submission of any requested additional information, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval.

FDA performance goals generally provide for action on a BLA within 10 months of filing, which (as discussed above) typically occurs within 60 days of submission, but that deadline is extended in certain circumstances. Furthermore, the review process is often significantly extended by the FDA’s requests for additional information or clarification.

The FDA may refer applications for novel products or products that present difficult questions of safety or efficacy to an advisory committee. Typically, an advisory committee consists of a panel that includes clinicians and other experts who will review, evaluate and provide a recommendation as to whether the application should be approved and, if so, under what conditions. The FDA is not bound by the recommendations of an advisory committee, but it considers such recommendations carefully when making decisions and usually has followed such recommendations.

After the FDA evaluates a BLA and conducts inspections of manufacturing facilities where the investigational product and/or its components will be produced, the FDA may issue an approval letter or a Complete Response Letter, or CRL. An approval letter authorizes commercial marketing of the biologic with specific prescribing information for specific indications. A CRL will describe all of the deficiencies that the FDA has identified in the BLA, except that where the FDA determines that the data supporting the application are inadequate to support approval, the FDA may issue the CRL without first conducting required inspections, testing submitted product lots and/or reviewing proposed labeling. If and when the deficiencies have been addressed to the FDA’s satisfaction in a resubmission of the BLA, the FDA will issue an approval letter. In issuing the CRL, the FDA may recommend actions that the applicant might take to place the BLA in condition for approval, including requests for additional data, information or clarification. The FDA may delay or refuse approval of a BLA if applicable regulatory criteria are not satisfied, and may require additional testing or information and/or require post-marketing studies and clinical trials. Even with submission of this additional information, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval.

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During the approval process, the FDA will determine whether a REMS is necessary to assure the safe use of the biologic. A REMS is a safety strategy to manage a known or potential serious risk associated with a product and to enable patients to have continued access to such medicines by managing their safe use, and could include medication guides, physician communication plans or elements to assure safe use, such as restricted distribution methods, patient registries and other risk minimization tools. If the FDA concludes that a REMS is needed, the BLA sponsor must submit a proposed REMS and the FDA will not approve the BLA without a REMS that the agency has determined is acceptable.

If the FDA approves a product, it may limit the approved indications for use for the product, or require that contraindications, warnings or precautions be included in the product labeling. The FDA may also require that post-approval studies, including Phase 4 clinical trials, be conducted to further assess the drug’s safety after approval. The FDA may prevent or limit further marketing of a product based on the results of post-market studies or surveillance programs.

The FDA may also require testing and surveillance programs to monitor the product after commercialization. For biologics, such testing may include official lot release, which requires the manufacturer to perform certain tests on each lot of the product before it is released for distribution. The manufacturer then typically must submit samples of each lot of product to the FDA, together with a release protocol showing a summary of the history of manufacture of the lot and the results of all of the manufacturer’s tests performed on the lot. The FDA may also perform certain confirmatory tests on lots of some products itself, before releasing the lots for distribution by the manufacturer.

After approval, many types of changes to the approved product, such as adding new indications, manufacturing changes and additional labeling claims, are often subject to further testing requirements and FDA review and approval, depending on the nature of the post-approval change. The FDA may withdraw the product approval if compliance with pre- and post-marketing requirements is not maintained or if problems occur after the product reaches the marketplace.

Post-Approval Requirements

Any products manufactured or distributed pursuant to FDA approvals are subject to pervasive and continuing regulation by the FDA, including, among other things, requirements relating to recordkeeping, periodic reporting, reporting of certain deviations and adverse experiences, product sampling and distribution and advertising and promotion of the product. After approval, most changes to the approved product, such as adding new indications or other labeling claims, are subject to FDA review and approval. There also are continuing user fee requirements, under which FDA assesses an annual program fee for each product identified in an approved BLA. Biologic manufacturers and their third-party contractors are required to register their facilities with the FDA and certain state agencies. These facilities are subject to routine and periodic unannounced inspections by the FDA and certain state agencies for compliance with cGMP, postmarketing safety reporting and data integrity requirements, which impose certain procedural and documentation requirements to assure quality of manufacturing and product. FDA has increasingly observed cGMP violations involving data integrity during site inspections and is a significant focus of its oversight. Requirements with respect to data integrity include, among other things, controls to ensure data are complete and secure; activities documented at the time of performance; audit trail functionality; authorized access and limitations; validated computer systems; and review of records for accuracy, completeness and compliance with established standards.

Post-approval changes to the manufacturing process are strictly regulated, and, depending on the significance of the change, may require FDA approval before being implemented. FDA regulations also require investigation and correction of any deviations from cGMP and impose reporting requirements upon us and any third-party manufacturers that we may decide to use. Accordingly, manufacturers must continue to expend time, money and effort in the area of production and quality control to maintain compliance with cGMP, data integrity, pharmacovigilance and other aspects of regulatory compliance.

The FDA may withdraw the approval if compliance with regulatory requirements and standards is not maintained or if problems occur after the product reaches the market. Later discovery of previously unknown problems with a product, including adverse events of unanticipated severity or frequency, or with manufacturing processes, or failure to comply with regulatory requirements, may result in revisions to the approved labeling to add new safety information; imposition of post-approval studies or clinical trials to assess new safety risks; or imposition of distribution or other restrictions under a REMS. Other potential consequences include, among other things:

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The FDA strictly regulates the marketing, labeling, advertising and promotion of prescription drug products placed on the market. A company can make only those claims relating to safety and efficacy, purity and potency that are approved by the FDA and in accordance with the provisions of the approved label. The FDA’s regulation includes, among other things, standards and regulations for direct-to-consumer advertising, communications regarding unapproved uses, industry-sponsored scientific and educational activities and promotional activities involving the Internet and social media. Promotional claims relating to a product’s safety or effectiveness are prohibited before the drug is approved. After approval, a product generally may not be promoted for uses that are not approved by the FDA, as reflected in the product’s prescribing information. In the United States, healthcare professionals are generally permitted to prescribe drugs for such uses not described in the drug’s labeling, known as off-label uses, because the FDA does not regulate the practice of medicine. However, FDA regulations impose rigorous restrictions on manufacturers’ communications, prohibiting the promotion of off-label uses. It may be permissible, under very specific, narrow conditions, for a manufacturer to engage in non-promotional, non-misleading communication regarding off-label information, such as distributing scientific or medical journal information.

If a company is found to have promoted off-label uses, it may become subject to adverse public relations and administrative and judicial enforcement by the FDA, the DOJ or the Office of the Inspector General of the Department of Health and Human Services, or HHS, as well as other federal and state authorities. This could subject a company to a range of penalties that could have a significant commercial impact, including civil, administrative, and criminal fines, penalties, and agreements that materially restrict the manner in which a company promotes or distributes products. The federal government has levied large civil, administrative, and criminal fines and penalties against companies for alleged improper promotion, and has also requested that companies enter into consent decrees and permanent injunctions under which specified promotional conduct is changed or curtailed.

The distribution of prescription drug and biologic are subject to the Drug Supply Chain Security Act, or DSCSA, which requires manufacturers and other stakeholders to comply with product identification, tracing, verification, detection and response, notification and licensing requirements. In addition, the Prescription Drug Marketing Act and its implementing regulations and state laws limit the distribution of prescription pharmaceutical product samples, and the DSCSA imposes requirements to ensure accountability in distribution and to identify and remove prescription drug and biological products that may be counterfeit, stolen, contaminated, or otherwise harmful from the market.

Patent Term Restoration and Marketing Exclusivity

After approval, owners of relevant drug or biological product patents may apply for up to a five year patent extension to restore a portion of patent term lost during product development and FDA review of a BLA if approval of the application is the first permitted commercial marketing or use of a biologic containing the active ingredient under the Drug Price Competition and Patent Term Restoration Act of 1984, referred to as the Hatch-Waxman Act. The allowable patent term extension is calculated as one-half of the product’s testing phase, which is the time between IND and BLA submission, and all of the review phase, which is the time between BLA submission and approval, up to a maximum of five years. The time can be shortened if the FDA determines that the applicant did not pursue approval with due diligence. The total patent term after the extension may not exceed more than 14 years from the date of FDA approval of the product. Only one patent claiming each approved product is eligible for restoration and the patent holder must apply for restoration within 60 days of approval. The USPTO, in consultation with the FDA, reviews and approves the application for patent term restoration.

For patents that might expire during the application phase, the patent owner may request an interim patent extension. An interim patent extension increases the patent term by one year and may be renewed up to four times. For each interim patent extension granted, the post-approval patent extension is reduced by one year. The director of the

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USPTO must determine that approval of the product candidate covered by the patent for which a patent extension is being sought is likely. Interim patent extensions are not available for a product candidate for which a BLA has not been submitted.

Biosimilars and Marketing Exclusivities

The Biologics Price Competition and Innovation Act, or BPCIA, created an abbreviated approval pathway for biological product candidates shown to be highly similar to or interchangeable with an FDA licensed biological product. A biological product on which another biological product candidate’s BLA relies to establish biosimilarity is known as a reference product. Biosimilarity sufficient to reference a prior FDA-approved product requires that there be no differences in conditions of use, route of administration, dosage form and strength, and no clinically meaningful differences between the biological product candidate and the reference product in terms of safety, purity and potency. Biosimilarity must be shown through analytical trials, animal trials and at least one clinical trial, unless the Secretary of HHS waives a required element. A biosimilar product candidate may be deemed interchangeable with a prior approved product if it meets the higher hurdle of demonstrating that it can be expected to produce the same clinical results as the reference product and, for products administered multiple times, the biologic and the reference biologic may be switched after one has been previously administered without increasing safety risks or risks of diminished efficacy relative to exclusive use of the reference biologic. Complexities associated with the larger, and often more complex, structures of biologics, as well as the process by which such products are manufactured, pose significant hurdles to implementation of the abbreviated approval pathway that are still being worked out by the FDA.

A reference biologic is granted 12 years of exclusivity from the time of first licensure of the reference product, and no application for a biosimilar can be submitted for four years from the date of licensure of the reference product. The first biological product candidate submitted under the abbreviated approval pathway that is determined to be interchangeable with the reference product has exclusivity against a finding of interchangeability for other biologics for the same condition of use for the lesser of (i) one year after first commercial marketing of the first interchangeable biosimilar, (ii) 18 months after the first interchangeable biosimilar is approved if there is no patent challenge, (iii) 18 months after resolution of a lawsuit over the patents of the reference biologic in favor of the first interchangeable biosimilar applicant, or (iv) 42 months after the first interchangeable biosimilar’s application has been approved if a patent lawsuit is ongoing within the 42 month period. At this time, it is unclear whether products deemed “interchangeable” by the FDA will, in fact, be readily substituted by pharmacies, which are governed by state pharmacy laws and regulations.

If a biologic is designated and approved for an orphan indication, it will be granted seven years of orphan drug exclusivity. An orphan indication is granted to biological products and drugs designated and approved to treat diseases or conditions affecting fewer than 200,000 individuals in the United States, or if there is no reasonable expectation that the sponsor will be able to recover the costs of developing and marketing the drug or biological product in the United States. A biosimilar may not be licensed by FDA for the protected orphan indication until after the expiration of the seven year orphan drug exclusivity period or the 12 year reference product exclusivity, whichever is later.

Pediatric exclusivity adds an additional six month exclusivity period to any marketing exclusivities and patents that a biological product has obtained. In order to obtain pediatric exclusivity, a BLA sponsor must conduct pediatric studies as requested by the FDA in a Written Request. The data do not need to show the product to be effective in the pediatric population studied; rather, if the clinical trial is deemed to fairly respond to the FDA’s request, the additional protection is granted. If reports of requested pediatric studies are submitted to and accepted by the FDA within the statutory time limits, whatever statutory or regulatory periods of exclusivity or patent protection cover the product are extended by six months. While pediatric exclusivity is not an actual extension on a patent term, it effectively extends the preclusive effect of the patent on FDA’s authority to approve another application that relies on the product with pediatric exclusivity.

The BPCIA is complex and continues to be interpreted and implemented by the FDA. On December 20, 2019, President Trump signed into law H.R. 1865, the Further Consolidated Appropriations Act of 2020. The law includes significant provisions related to the Trump Administration’s biosimilars policy framework and FDA’s implementation of the BPCIA, such as clarifying that “chemically synthesized polypeptides” are no longer excluded from being regulated as biologics, while “peptides” (polymers composed of 40 or fewer amino acids) will continue to be regulated as drugs unless they otherwise meet the statutory definition of biological products. In addition, the Further Consolidated Appropriations Act of 2020 clarifies exclusivity and procedural issues related to certain biologics approved as drugs pursuant to new drug applications, or NDAs, to be the subject of an approved BLA, or transition biological products. The law also incorporates provisions intended to reduce price and increase competitiveness in the pharmaceutical industry. The law amends the

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FDCA to create a private right of action against NDA or BLA holders that refuse to provide sufficient quantities of samples of an approved reference product to generic and biosimilar developers. In July 2018, the FDA released its Biosimilars Action Plan to improve the efficiency of the biosimilar and interchangeable product development and approval process. The Further Consolidated Appropriations Act of 2020 is consistent with FDA guidance documents issued in December 2018 that were intended to advance the agency’s biosimilars policy framework. The implementation of the Further Consolidated Appropriations Act of 2020 and the ultimate impact of the agency’s Biosimilars Action Plan are uncertain and may evolve over time through future laws and regulations and guidance provided by regulatory and governing bodies. In addition, other aspects of the BPCIA, some of which may impact the BPCIA exclusivity provisions, have been the subject of recent litigation.

Regulation of Companion Diagnostics and Laboratory Developed Tests

A companion diagnostic is an in vitro diagnostic that can: identify the patients most likely to benefit from a particular therapeutic product; identify those likely to be at an increased risk for serious side effects; or monitor responses to treatment with a particular therapeutic product for the purpose of adjusting treatment to achieve improved safety or effectiveness. Under the FDCA, in vitro companion diagnostics are generally regulated as medical devices. The FDA has generally classified in vitro companion diagnostics as high-risk, Class III devices, which require FDA approval of a premarket approval application, or PMA, but recognizes the possibility of a moderate-risk IVD companion diagnostic (i.e., Class II device), which would require clearance of a 510(k) premarket notification or grant of a de novo request. Approval or clearance of the in vitro companion diagnostic device will ensure that the device has been adequately evaluated and has adequate performance characteristics in the intended population.

For those in vitro companion diagnostics that require PMA approval, the process involves gathering and submitting clinical and preclinical data on the device for review by the FDA. It involves a rigorous premarket review, during which the applicant must provide the FDA with reasonable assurance of the device’s safety and effectiveness, as well as information regarding the device’s design, manufacturing and labeling. In addition, the FDA will typically inspect the device manufacturer’s facilities for compliance with the Quality System Regulation, which imposes testing, control, documentation and other quality assurance requirements.

The FDA has issued guidance on the approval of therapeutic products and in vitro companion diagnostic devices. According to the FDA’s guidance, for novel therapeutic products including biologics, an in vitro companion diagnostic device and its corresponding therapeutic should be approved or cleared contemporaneously by the FDA for the use indicated in the therapeutic product’s labeling.

In some cases, information from a diagnostic test may be useful to a prescriber, but not necessary for the safe and effective administration of the therapeutic product. In those cases, health care providers may employ information derived from a complementary diagnostic test such as a laboratory developed test, or LDT, when administering a therapeutic product. An LDT is a type of in vitro diagnostic test that is designed, manufactured and used within a single laboratory. LDTs can be used to measure or detect a wide variety of analytes (substances such as proteins, chemical compounds like glucose or cholesterol, or DNA), in a sample taken from a human body.

The Centers for Medicare and Medicaid Services, or CMS, regulates LDTs and the laboratories that develop them, and enforces the Clinical Laboratories Improvement Amendments, or CLIA. CMS evaluates whether there is clinical utility for each specific test, and also performs postmarket oversight of laboratory operational processes. CMS’s oversight through the CLIA program is designed to confirm that a lab assesses analytical validity, but does not confirm whether it had results from an analytical validity assessment that were sufficient to support the claimed intended use of the test.

Historically, the FDA has generally not enforced premarket review and other FDA requirements on LDTs because LDTs were relatively simple lab tests and generally available on a limited basis. Due to advances in technology, however, some LDTs are now much more complex, have a nationwide reach and present higher risks, such as detection of risk for breast cancer and Alzheimer’s disease, which are similar to those of other IV in vitro diagnostics that have undergone premarket review.

The FDA has announced that in the future it intends to assert jurisdiction over LDTs and proposed increasing regulatory requirements for LDTs through a risk-based framework. The FDA received considerable resistance to its proposal, and to date generally exercises enforcement discretion with respect to LDTs, leaving responsibility to CMS.

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New laws, regulations or changes to existing laws, regulations and policies may result in changes to the requirements for LDTs or in vitro diagnostic devices and to the FDA’s compliance and enforcement policies.

Healthcare Regulation

Pharmaceutical Coverage and Reimbursement

Our ability to successfully commercialize any of our product candidates for which we may receive regulatory approval will depend in significant part on the availability of coverage and reimbursement from third-party payors, including governmental healthcare programs such as the Medicare and Medicaid programs in the U.S.; private health insurers; managed care organizations; and other entities. Third-party payors establish the coverage and reimbursement policies for pharmaceutical products, and the marketability of any products for which we may receive regulatory approval for commercial sale depends on those payors’ coverage policies and reimbursement rates. Third-party payors may limit coverage to specific products on an approved list, or formulary, which might not include one or more of our product candidates. Third-party payors, together with regulators and others, are increasingly challenging the prices charged for pharmaceutical products and health services, in addition to their cost-effectiveness, safety and efficacy.

In addition, no uniform policy for coverage and reimbursement exists in the United States. Third-party payors often rely upon Medicare coverage policy and payment limitations in setting their own coverage and reimbursement policies, but also have their own methods and approval process apart from Medicare determinations. Therefore, coverage and reimbursement rates can vary significantly from payor to payor.

Moreover, obtaining coverage and adequate reimbursement is a time-consuming and costly process. We may be required to provide scientific and clinical support for the use of any product to each third-party payor separately with no assurance that approval will be obtained, and we may need to conduct expensive pharmacoeconomic studies in order to demonstrate the cost-effectiveness of our products. We cannot be certain that our product candidates will be considered cost-effective by third-party payors. This process could delay the market acceptance of any product candidates for which we may receive approval and could have a negative effect on our future revenues and operating results.

Other U.S. Healthcare Laws and Compliance Requirements

In the United States, our business is subject to healthcare fraud and abuse regulation and enforcement by both the federal government and the states in which we conduct our business, particularly once third-party reimbursement becomes available for one or more of our products. The healthcare fraud and abuse laws and regulations that may affect our ability to operate include but are not limited to:

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We will be required to spend substantial time and money to ensure that our business arrangements with third parties comply with applicable healthcare laws and regulations. Even then, governmental authorities may conclude that our business practices do not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If governmental authorities find that our operations violate any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, damages, fines, disgorgement, individual imprisonment, exclusion from government funded healthcare programs, such as Medicare and Medicaid, and additional reporting obligations and oversight if we become subject to a corporate integrity agreement or other agreement to resolve allegations of non-compliance with these laws, and we may be required to curtail or restructure our operations. Moreover, we expect that there will continue to be federal and state laws and regulations, proposed and implemented, that could impact our operations and business. In addition, the approval and commercialization of any product candidate we develop outside the United States will also likely subject us to foreign equivalents of the healthcare laws mentioned above, among other foreign laws. The extent to which future legislation or regulations, if any, relating to health care fraud and abuse laws or enforcement, may be enacted or what effect such legislation or regulation would have on our business remains uncertain.

Healthcare Reform

In the United States there have been and continue to be a number of healthcare-related legislative and regulatory initiatives and reforms that have significantly affected the pharmaceutical industry. For example, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, or collectively, the ACA, was passed in March 2010, and substantially changed the way healthcare is financed by both governmental and private insurers and significantly impacted the U.S. pharmaceutical industry. Among other things, the ACA: subjects biologics to potential competition by lower-cost biosimilars; addresses a methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program, or MDRP, are calculated for covered outpatient drugs that are inhaled, infused, instilled, implanted or injected; increases the minimum Medicaid rebates owed by manufacturers under the MDRP and extends the rebate program to individuals enrolled in Medicaid managed care organizations; establishes annual fees and taxes on manufacturers of certain branded prescription drugs; and creates a Medicare Part D coverage gap discount program in which, as a condition of coverage of its products under Medicare Part D, manufacturers must agree to offer point-of-sale discounts off negotiated prices of applicable brand drugs to eligible beneficiaries during their coverage gap period.

The ACA and certain of its provisions have been subject to judicial challenges as well as efforts to repeal or replace them or to alter their interpretation or implementation. For example, Congress has considered legislation that would repeal or repeal and replace all or part of the ACA. While Congress has not passed comprehensive repeal legislation, bills affecting the implementation of certain taxes under the ACA have been signed into law. The Tax Cuts and Jobs Act of 2017, or the Tax Act, includes a provision that repealed the tax-based shared responsibility payment imposed by the ACA

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on certain individuals who fail to maintain qualifying health coverage for all or part of a year, commonly referred to as the “individual mandate.” The Bipartisan Budget Act of 2018, among other things, amended the ACA to increase the point-of-sale discounts that manufacturers must agree to offer under the Medicare Part D coverage discount program from 50% to 70% off negotiated prices of applicable brand drugs to eligible beneficiaries during their coverage gap period, as a condition for the manufacturer’s outpatient drugs to be covered under Medicare Part D. CMS rules issued in 2018 permit further collections and payments to and from certain ACA-qualified health plans and health insurance issuers under the ACA risk adjustment program. The Further Consolidated Appropriations Act of 2020 fully repealed the ACA’s “Cadillac Tax” on certain high cost employer-sponsored insurance plans and, effective in 2021, the annual fee imposed on certain health insurance providers based on market share. Additional legislative or regulatory changes related to the ACA remain possible.

In December 2018, the United States District Court for the Northern District of Texas ruled that the individual mandate is (i) unconstitutional as a result of the associated tax penalty being repealed by Congress as part of the Tax Act and (ii) not severable from the rest of the ACA, and that as a result the entire ACA is invalid. On December 18, 2019, the U.S. Court of Appeals for the Fifth Circuit affirmed the district court’s decision that the individual mandate is unconstitutional, but remanded the case to the district court to reconsider the severability question. The Supreme Court of the United States granted certiorari on March 2, 2020 and heard oral argument on November 10, 2020. On February 10, 2021, the Biden Administration withdrew the federal government’s support for overturning the ACA. The case is expected to be decided by mid-2021. It is unclear how the ultimate decision in this case, or other efforts to repeal, replace or invalidate the ACA or its implementing regulations, or portions thereof, will impact the ACA and its implementation.

Additionally, there has been increasing legislative and enforcement interest in the United States with respect to specialty drug pricing practices. Specifically, several recent U.S. Congressional inquiries and proposed and enacted pieces of federal and state legislation and regulation have been designed to, among other things: bring more transparency to drug pricing; reduce the cost of prescription drugs under government payor programs; review the relationship between pricing and manufacturer patient programs; and reform government program reimbursement methodologies for drugs. For example, on November 20, 2020, CMS issued an interim final rule that implemented a mandatory “Most Favored Nation” demonstration model to test reimbursement of drugs or biologicals under Medicare Part B based on international reference prices, but the final rule is currently subject to a nationwide preliminary injunction, and it remains to be seen whether orders such as these and resulting regulations will remain in force during the Biden Administration Policymakers have indicated that they will continue to seek legislative and administrative measures to control drug costs. Individual states in the United States have also increasingly passed legislation and implemented regulations designed to control pharmaceutical and biological product pricing, including price or patient reimbursement limitations, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. In addition, regional healthcare authorities and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products and which suppliers will be included in their prescription drug and other healthcare programs.

Moreover, in May 2018, the Trickett Wendler, Frank Mongiello, Jordan McLinn and Matthew Bellina Right to Try Act of 2017, or the Right to Try Act, was signed into law. The law, among other things, provides a federal framework for certain patients to access certain investigational new drug products that have completed a Phase 1 clinical trial and that are undergoing investigation for FDA approval. Under certain circumstances, eligible patients can seek treatment without enrolling in clinical trials and without obtaining FDA permission under the FDA expanded access program. There is no obligation for a pharmaceutical manufacturer to make its drug products available to eligible patients as a result of the Right to Try Act.

Human Capital Resources

Our success depends upon our ability to retain and attract highly qualified management and technical personnel. As of December 31, 2020, we had 90 full-time employees.

We consider the intellectual capital of our employees to be an essential driver of our business and key to our future prospects. Recruiting and retaining qualified employees, consultants and advisors for our business, including scientific and technical personnel, is critical to our success, and competition for skilled personnel is intense and the turnover rate can be high in our industry. We have historically addressed the turnover we have encountered and grown our headcount in support of our expanding pipeline of research programs and product candidates, but we continue to monitor our turnover rate and the overall supply of skilled labor in the market. We also monitor our compensation programs closely and provide

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what we consider to be a competitive mix of compensation and benefits for our employees, as well as participation in our equity programs. None of our employees are subject to a collective bargaining agreement or represented by a trade or labor union.

Corporate Information and Access to SEC Reports

We were incorporated in Delaware in September 2015. Our primary executive offices are located at 9000 Virginia Manor Road, Suite 200, Beltsville, Maryland 20705 and our telephone number is (240) 399-4900. We make available, free of charge, on our website at www.nextcure.com, our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and any amendments to such reports as soon as reasonably practicable after such reports are electronically filed with, or furnished to, the SEC. The contents of our website are not incorporated into this Annual Report.

Item 1A. Risk Factors

Investing in our common stock involves a high degree of risk. You should carefully consider the risks described below together with all of the other information in this Annual Report, including our financial statements and the related notes and the information described in the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” before deciding whether to invest in our common stock. If any of the events described below actually occurs, our business, results of operations, financial conditions, cash flows or prospects could be harmed. If that were to happen, the trading price of our common stock could decline, and you could lose all or part of your investment. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also impair our business operations.

Risks Related to Our Financial Position and Need for Additional Capital

We have a limited operating history and no products approved for commercial sale. We have a history of significant losses, expect to continue to incur significant losses for the foreseeable future and may never achieve or maintain profitability.

We are a clinical-stage biopharmaceutical company with a limited operating history. Since our founding in 2015, we have incurred significant net losses. Our net losses were $36.6 million and $33.7 million for the years ended December 31, 2020 and 2019, respectively. As of December 31, 2020, we had an accumulated deficit of $117.6 million. We have funded our operations to date primarily with proceeds from public offerings of our common stock, private placements of our preferred stock and upfront fees received under the Lilly Agreement, which was terminated effective March 2020. Since commencing operations, we have devoted substantially all of our efforts and financial resources to organizing and staffing our company, identifying business development opportunities, raising capital, securing intellectual property rights related to our product candidates, building and optimizing our manufacturing capabilities and conducting discovery, research and development activities for our product candidates, our discovery programs and our FIND-IO platform.

We expect that it will be several years, if ever, before we have a commercialized product. We expect to continue to incur significant expenses and operating losses for the foreseeable future. The net losses we incur may fluctuate significantly from year to year. We anticipate that our expenses will increase substantially if, and as, we:

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● maintain, expand and protect our intellectual property portfolio;

To become and remain profitable, we, whether on our own or jointly with any potential future collaborator, must develop and eventually commercialize products with significant market potential. This will require us to be successful in a range of challenging activities, including completing preclinical studies and clinical trials, obtaining marketing approval for product candidates, manufacturing, marketing and selling products and satisfying any post-marketing requirements. We may never succeed in any or all of these activities and, even if we do, we may never generate revenue that is significant or large enough to achieve profitability. If we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to become and remain profitable would decrease the value of our company and could impair our ability to raise capital, maintain our research and development efforts, expand our business or continue our operations. A decline in the value of our company could also cause you to lose all or part of your investment.

We have never generated revenue from product sales and may never be profitable.

Our ability to generate revenue from product sales and achieve profitability depends on our ability, alone or with collaboration partners, to successfully complete the development of, and obtain the regulatory approvals necessary to commercialize, our product candidates. We do not anticipate generating revenue from product sales for the next several years, if ever. Our ability to generate future revenue from product sales depends heavily on our, or our potential future collaborators’, success in:

● receiving acceptance of INDs for future product candidates;

● identifying and developing new product candidates;

● addressing any competing technological and market developments;

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● defending against third-party interference or infringement claims, if any; and

● attracting, hiring and retaining qualified personnel.

We anticipate incurring significant costs associated with commercializing any product candidate that is approved for commercial sale. Our expenses could increase beyond expectations if we are required by the FDA or other regulatory agencies to perform clinical trials or studies in addition to those that we currently anticipate. Even if we are able to generate revenue from the sale of any approved products, we may not become profitable and may need to obtain additional funding to continue operations.

We will require substantial additional financing to pursue our business objectives, which may not be available on acceptable terms, or at all. A failure to obtain this necessary capital when needed could force us to delay, limit, reduce or terminate our product development, commercialization efforts or other operations.

Our operations have consumed substantial amounts of cash since inception. We expect to continue to spend substantial amounts to continue the preclinical and clinical development of our current and future programs. If we receive marketing approval for any product candidates, including NC318, NC410, or NC762, we will require significant additional amounts of cash in order to launch and commercialize such product candidates. In addition, other unanticipated costs may arise. Because the designs and outcomes of our planned and anticipated clinical trials are highly uncertain, we cannot reasonably estimate the actual amounts necessary to successfully complete the development of and commercialize any product candidate we develop.

Our future capital requirements depend on many factors, including:

● the success of the SRA with Yale;

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Until we can generate sufficient product and royalty revenue to finance our cash requirements, which we may never do, we expect to finance our future cash needs through a combination of public or private equity offerings, debt financings, marketing and distribution arrangements, other collaborations, strategic alliances and licensing arrangements. As of December 31, 2020, we had $283.4 million in cash, cash equivalents (excluding restricted cash) and marketable securities. Based on our research and development plans, we expect that our existing cash, cash equivalents and marketable securities will enable us to fund our operating expenses and capital expenditure requirements into the second half of 2023. This estimate is based on assumptions that may prove to be wrong, and we could use our available capital resources sooner than we expect. Changes may occur that are within or beyond our control that would cause us to consume our available capital before that time, including changes in and progress of our development activities, acquisitions of additional product candidates and changes in regulation.

If we raise additional capital through marketing, sales and distribution arrangements or other collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish certain valuable rights to our product candidates, future revenue streams, research programs or technologies or grant licenses on terms that may not be favorable to us. If we raise additional capital through public or private equity offerings, the terms of these securities may include liquidation or other preferences that adversely affect our stockholders’ rights. Further, to the extent that we raise additional capital through the sale of common stock or securities convertible or exchangeable into common stock, your ownership interest will be diluted. If we raise additional capital through debt financing, we would be subject to fixed payment obligations and may be subject to covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends.

Adequate additional financing may not be available to us on acceptable terms, or at all. If we are unable to obtain additional financing on favorable terms when needed, we may be required to delay, limit, reduce or terminate preclinical studies, clinical trials, or other research and development activities or one or more of our development programs.

Risks Related to the Discovery and Development of Our Product Candidates

Recently announced interim results regarding our NC318 monotherapy Phase 1/2 clinical trial may adversely impact our product development efforts.

In July 2020, we announced that based on the current enrollment criteria and clinical response data, we did not plan at that time to advance the NSCLC and ovarian cancer cohorts of our NC318 Phase 1/2 monotherapy clinical trial into the stage 2 portion of the Simon 2-stage trial. In December 2020, we announced that the initial selection criterion did not result in enough S15-positive patients for us to effectively evaluate the activity of NC318 in S15-positive tumors. We are modifying the Phase 2 portion of the trial for S15 selection and expect to begin pre-selecting patients for enrollment based on S15 expression in the second quarter of 2021, which we anticipate will allow us to assess response rates in patients selected for S15 positivity. The developments in this trial could increase the costs and lengthen the timeline for this trial, adversely impact our ability to enroll patients and impair our ability to gain regulatory approval for and commercialize NC318. We could also make decisions about pursuing particular tumor types based on incomplete facts, resulting in decisions to either pursue indications that we should not pursue, or to not pursue indications that we should pursue. In addition, our former chief medical officer resigned effective August 4, 2020, and a new chief medical officer was appointed effective January 14, 2021. This transition could also delay or otherwise adversely impact our development efforts for NC318 and our other product candidates. Any of these developments could damage our reputation or investor confidence in our company, disrupt our broader research and development, impact our ability to raise capital, or hinder our ability to execute our strategic plans, which could have a material adverse effect on our business, financial condition, operating results and prospects.

As an organization, we have limited experience designing and implementing clinical trials, and we have never conducted pivotal clinical trials. Failure to adequately design a trial, or incorrect assumptions about the design of the trial, could adversely affect the ability to initiate the trial, enroll patients, complete the trial, or obtain regulatory approval on the basis of the trial results, as well as lead to increased or unexpected costs and in delayed timelines.

The design and implementation of clinical trials is a complex process. We have limited experience designing and implementing clinical trials, and we may not successfully or cost-effectively design and implement clinical trials that achieve our desired clinical endpoints efficiently, or at all. For example, in December 2020, we announced that the initial selection criterion for our Phase 1/2 trial in NC318 did not result in enough S15-positive patients for us to effectively evaluate the activity of NC318 in S15-positive tumors, and that as a result we are modifying the Phase 2 portion of the

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trial for S15 selection. And, in our NC318 trial, we are continuing to evaluate alternate doses and dose administration schedules depending on pharmacokinetics, pharmacodynamics, biomarker data, safety results and feedback from investigators. A clinical trial that is not well designed may delay or prevent initiation or completion of the trial, can lead to increased difficulty in enrolling patients, may make it more difficult to obtain regulatory approval for the product candidate on the basis of the study results, or, even if a product candidate is approved, could make it more difficult to commercialize the product successfully or obtain reimbursement from third-party payors. Additionally, a trial that is not well-designed could be inefficient or more expensive than it otherwise would have been, or we may incorrectly estimate the costs to implement the clinical trial, which could lead to a shortfall in funding. If we select an incorrect dose or dose administration schedule, that could negatively impact the results of the trial, including if we select doses that are too low to be effective or administer doses too infrequently based on the half-life of the active ingredient. We also expect to continue to rely on third parties to conduct our pivotal clinical trials. See “—Risks Related to Reliance on Third Parties—We rely or will rely on third parties to help conduct our ongoing and planned preclinical studies and clinical trials for NC318, NC410, NC762 and any future product candidates we develop. If these third parties do not successfully carry out their contractual duties, comply with regulatory requirements or meet expected deadlines, we may not be able to obtain marketing approval for or commercialize NC318, NC410, NC762 and any future product candidates we develop, and our business could be materially harmed. Consequently, we may be unable to successfully and efficiently execute and complete clinical trials that are required for BLA submission and FDA approval of NC318, NC410, NC762 or future product candidates. We may require more time and incur greater costs than our competitors and may not succeed in obtaining regulatory approvals of product candidates that we develop.

The impacts of the COVID-19 pandemic could continue to adversely affect our business.

In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic. In order to mitigate the spread of COVID-19, governments have imposed unprecedented restrictions on business operations, travel and gatherings, resulting in a global economic downturn and other adverse economic and societal impacts. The COVID-19 pandemic has also overwhelmed or otherwise led to changes in the operations of many healthcare facilities, including clinical trial sites. While we are considered an essential business under applicable regulations and continue to operate, the impacts of COVID-19 initially placed significant strain on our clinical trial sites, have raised concerns around monitoring patient safety, and caused enrollment to slow in the Phase 2 portion of the ongoing Phase 1/2 monotherapy clinical trial of our lead product candidate, NC318. Spikes of COVID-19 infection rates, especially in the United States, could also negatively affect enrollment. We are continuing to work closely with our clinical partners and have taken steps as necessary to adjust our protocols and timelines due to the impact of the COVID-19 pandemic. Specifically, initial data from the Phase 2 portion of our ongoing Phase 1/2 clinical trial of NC318 were temporarily delayed, and the initial delay of our Phase 2 clinical trial to evaluate NC318 in combination with standard of care chemotherapies was due to COVID-19. In addition, we delayed until July 2020 initiation of the Phase 1 portion of our Phase 1/2 clinical trial of NC410 despite being prepared to begin the trial in March 2020. The impacts of the COVID-19 pandemic could adversely affect our clinical trials and operations in other ways as well. For example, further challenges may arise as a result of patients, members of the clinical team, or our employees becoming infected with COVID-19 or otherwise unable or unwilling to participate in trials or come to work or losing productivity, as applicable, as a result of COVID-19, interruptions to the supply chain or manufacturing, site closures, or difficulties in meeting protocol-specified procedures, including difficulties adhering to protocol-mandated visits and testing. The COVID-19 pandemic may also increase the likelihood and severity of other risks discussed in this “Risk Factors” section, including but not limited to risks related to the conduct, progress and outcomes of clinical trials, risks related to reliance on third parties, risks related to our operations and dependence on key personnel, and risks related to our need to obtain additional capital.

The COVID-19 pandemic and its impacts continue to evolve. We cannot predict the scope and severity of any further disruptions as a result of COVID-19 or their impacts on us, but business disruptions for us or the third parties with whom we engage, including the collaborators, contract organizations, third-party manufacturers, suppliers, clinical trial sites, regulators and other third parties with whom we conduct business could materially and negatively impact our ability to conduct our business in the manner and on the timelines presently planned. The extent to which the COVID-19 pandemic may continue to impact our business and financial performance will depend on future developments, which are highly uncertain and cannot be predicted with confidence, including the scope and duration of the pandemic and the extent and effectiveness of government restrictions, relief measures and other actions implemented to address the impact of the pandemic, and resulting economic impacts.

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Our business is dependent on our ability to advance our current and future product candidates through clinical trials, obtain marketing approval and ultimately commercialize them.

We are early in our development efforts. We initiated our first clinical trial for NC318, our lead product candidate, in October 2018, our first clinical trial for our second product candidate, NC410, in June 2020, and submitted the IND for our first clinical trial for our third product candidate, NC762, in the first quarter of 2021. Our ability to generate product revenues, which we do not expect will occur for several years, if ever, will depend heavily on the successful development and eventual commercialization of NC318, NC410, NC762 and any future product candidates we develop, which may never occur. Our current product candidates and any future product candidates we develop will require additional preclinical or clinical development, management of clinical, preclinical and manufacturing activities, marketing approval in the United States and other jurisdictions, demonstration of effectiveness to pricing and reimbursement authorities, sufficient cGMP manufacturing supply for both preclinical and clinical development and commercial production, building of a commercial organization and substantial investment and significant marketing efforts before we generate any revenues from product sales.

The clinical and commercial success of our current and future product candidates will depend on several factors, including the following:

● acceptance of INDs for any future product candidates;

● successful enrollment in and completion of clinical trials;

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● competing effectively with other therapies;

● enforcing and defending intellectual property rights and claims.

These factors, many of which are beyond our control, could cause us to experience significant delays or an inability to obtain regulatory approvals or commercialize our current or future product candidates, and could otherwise materially harm our business. Successful completion of preclinical studies and clinical trials does not mean that NC318, NC410, NC762 or any future product candidates we develop will receive regulatory approval. Even if regulatory approvals are obtained, we could experience significant delays or an inability to successfully commercialize our current and any future product candidates we develop, which would materially harm our business. If we are not able to generate sufficient revenue through the sale of any current or future product candidate, we may not be able to continue our business operations or achieve profitability.

The regulatory approval processes of the FDA and comparable foreign authorities are lengthy, time-consuming and inherently unpredictable, and if we are ultimately unable to obtain regulatory approval for our product candidates, our business will be materially harmed.

The time required to obtain approval by the FDA and comparable foreign authorities is unpredictable but typically takes many years following the commencement of clinical trials and depends upon numerous factors, including the substantial discretion of the regulatory authorities. In addition, approval policies, regulations or the type and amount of clinical data necessary to gain approval may change during the course of a product candidate’s clinical development and may vary among jurisdictions. We have not obtained regulatory approval for any product candidate. Neither we nor any future collaborator is permitted to market any biological product in the United States until we or the future collaborator receives regulatory approval of a BLA from the FDA. It is possible that none of our current or future product candidates will ever obtain regulatory approval from the FDA or comparable foreign regulatory authorities.

Our current and future product candidates could fail to receive regulatory approval for many reasons, including the following:

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This lengthy approval process as well as the unpredictability of clinical trial results may result in our failing to obtain regulatory approval to market any product candidate we develop, which would significantly harm our business, results of operations and prospects. The FDA and other comparable foreign authorities have substantial discretion in the approval process and in determining when or whether regulatory approval will be granted for any product candidate that we develop. Even if we believe the data collected from current or future clinical trials of our product candidates are promising, such data may not be sufficient to support approval by the FDA or any other regulatory authority.

In addition, even if we were to obtain approval, the FDA may approve any of our product candidates for fewer or more limited indications, or a more limited patient population, than we request, may grant approval contingent on the performance of costly clinical trials, development of an in vitro companion diagnostic, or other postmarketing requirements, or may approve a product candidate with a label that does not include the labeling claims we believe are necessary or desirable for the successful commercialization of such product candidates.

The FDA or comparable foreign regulatory authorities may change their policies, promulgate additional regulations, revise existing regulations or take other actions that may prevent or delay approval of our future products under development on a timely basis. Such policy or regulatory changes could impose additional requirements upon us that could delay our ability to obtain approvals, increase the costs of compliance or restrict our ability to maintain any marketing authorizations we may have obtained. Any of the foregoing scenarios could materially harm the commercial prospects for our product candidates.

Clinical development involves a lengthy and expensive process with uncertain outcomes. We may incur additional costs and experience delays in developing and commercializing or be unable to develop or commercialize our current and future product candidates.

NXTC US Equity

NXTC · 10-K · period ended 2020-12-31

Item 1. Business

Item 1A. Risk Factors

NXTC US Equity☆

NXTC · 10-K · period ended 2020-12-31

Item 1. Business

Item 1A. Risk Factors

NXTC US Equity