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LONA US Equity

LeonaBio, Inc.Health Care · Biological Products, (No Diagnostic Substances) · CIK 1620463 · FY ends Dec 31
$7.83
-0.34 (-4.16%)
USD · as of 2026-08-19 · marketstack
9 registered studies · 1 active

Studies where LONA is the lead sponsor, as filed with ClinicalTrials.gov. Completion dates are the sponsor's own projected windows and are revised as a study runs. Active studies first, then completed and stopped — newest readout first within each.

9 interventional · 4 with posted results

Held by 4 tracked-famous managers (RENAISSANCE TECHNOLOGIES LLC, MILLENNIUM MANAGEMENT LLC, TWO SIGMA INVESTMENTS, LP, CITADEL ADVISORS LLC) · FINRA short interest 2.0 days to cover (settled 2026-07-31) · government filings 180d: none disclosed

StudyPhaseStatusInterventionsConditionsEnrollmentPrimary completionReadout inUpdated
Evaluation of Lasofoxifene Combined With Abemaciclib Compared With Fulvestrant Combined With Abemaciclib in Locally Advanced or Metastatic ER+/HER2- Breast Cancer With an ESR1 MutationNCT05696626Progression free survival (PFS)Randomized · Open-label · TreatmentPhase 3RecruitingDrug: Lasofoxifene in combination with abemaciclib, Fulvestrant in combination with abemaciclibMetastatic Breast Cancer600Apr 2027≤ 253 d2026-06-22
A SAD and MAD Study of the Safety, Tolerability, and Pharmacokinetics of ATH-1105NCT06432647Incidence of Treatment-Emergent Adverse EventsRandomized · Quadruple-masked · OtherPhase 1CompletedDrug: ATH-1105, PlaceboHealthy Volunteers802024-11-25actual2025-01-23
Open Label Study of ATH-1017 for Treatment of Mild to Moderate Alzheimer's DiseaseNCT04886063results2025-04-01Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]Open-label · TreatmentStudy Protocol · Statistical Analysis PlanPhase 2/3Terminatedsponsor's stated reason: ATH-1017-AD-0203 was terminated after the Ph2/3 parent trial (LIFT-AD; NCT04488419) did not meet its primary endpoint, the GST score.Drug: ATH-1017Alzheimer Disease4232024-10-23actual2025-04-01
ATH-1017 for Treatment of Mild to Moderate Alzheimer's DiseaseNCT04488419results2025-04-04Global Statistical Test (GST) ScoreRandomized · Quadruple-masked · TreatmentStudy Protocol · Statistical Analysis PlanPhase 2/3CompletedDrug: ATH-1017, PlaceboAlzheimer Disease, Dementia of Alzheimer Type5542024-07-15actual2025-04-04
ATH-1017 Treatment in Subjects With Parkinson's Disease Dementia or Dementia With Lewy Bodies (SHAPE Trial)NCT04831281results2025-03-04Global Statistical Test (GST) Score at BaselineRandomized · Quadruple-masked · TreatmentStudy Protocol · Statistical Analysis PlanPhase 2Terminatedsponsor's stated reason: Enrollment ended early due to study design limitations.Drug: ATH-1017, PlaceboParkinson Disease Dementia, Dementia With Lewy Bodies282023-04-19actual2025-03-04
A Study of the Absorption, Metabolism, and Excretion of [14C]-Fosgonimeton (ATH-1017)NCT05511558Mass balance of total radioactivity from [14C]-FosgonimetonOpen-label · TreatmentPhase 1CompletedDrug: [14C]-FosgonimetonHealthy Volunteers82022-10-18actual2022-12-22
Safety, Tolerability, and Pharmacokinetics Study of ATH-1020NCT05169671Incidence of Treatment-Emergent Adverse Events (Safety and Tolerability)Randomized · Quadruple-masked · TreatmentPhase 1CompletedDrug: ATH-1020, PlaceboHealthy Volunteers322022-09-09actual2024-04-08
A Study of ATH-1017 in Mild to Moderate Alzheimer's DiseaseNCT04491006results2023-06-12Event-related Potential (ERP) P300 Latency at BaselineRandomized · Quadruple-masked · TreatmentStudy Protocol · Statistical Analysis PlanPhase 2CompletedDrug: ATH-1017, PlaceboAlzheimer Disease, Dementia of Alzheimer Type772022-05-20actual2023-06-12
Safety, Tolerability, and Pharmacokinetics Study of NDX-1017NCT03298672Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability].Randomized · Quadruple-masked · TreatmentPhase 1CompletedDrug: NDX-1017, PlaceboAlzheimer Disease882019-09-05actual2019-09-10

Primary completion is the date the sponsor filed with the registry — their own projection, revised whenever they revise it, unless the row is marked actual.

Source: ClinicalTrials.gov, retrieved 2026-08-19