A Study to Evaluate Tobevibart+Elebsiran in Participants With Chronic HDV Infection Not Virologically Suppressed With Bulevirtide

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NCT07128550 · readout ≤ 134 d

Sponsored by Vir Biotechnology, Inc. (industry) · VIR — their whole pipeline →.

Phase

Phase 3

Status

Active, not recruiting

Study type

Interventional

Design

Randomized · None · Treatment

Enrollment

150estimated

Sites

Countries

Austria, France, Germany +4

Every value on this page is a field the sponsor filed with ClinicalTrials.gov, reproduced. Dates are their own estimates, revised as a study runs, unless the registry marks them actual. sources →

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

Dates

each axis at the precision it was filed, with the registry's own basis

Date

Filed

Basis

What it is

Start

2025-07-30

actual

When the study began enrolling

Primary completion

Dec 2026

estimated

The date the last participant is measured for the primary outcome — the readout window

Study completion

Jul 2031

estimated

The whole study's end, after follow-up

First posted

2025-08-19

actual

When this record first appeared on the registry

Results posted

—

When the sponsor posted results to the registry

Record updated

2026-07-13

actual

The sponsor's own last edit to this record — every projection above is as current as this date

What it studies

Condition

Viral Hepatitis

Interventions

Drug: Tobevibart — also filed as VIR-3434
Drug: Elebsiran — also filed as VIR-2218
Drug: Bulevirtide — also filed as Hepcludex

Primary outcomes

what the primary-completion date above is the date OF

HDV RNA < Lower Limit of Quantification (LLOQ), Target not detected (TND) at Week 24

measured Week 24

HDV RNA < Lower Limit of Quantification (LLOQ), Target not detected (TND) 24 weeks after end of treatment.

measured 24 Weeks after End of Treatment

Publications

PMID 41586499 — linked by the registry

Linked on the registry record. A “linked by the registry” entry is NLM's own automated PubMed match, not a claim by the sponsor that the paper reports this study.

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