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A Phase III Study to Evaluate the Efficacy and Safety of Libevitug in Participants With Chronic HDV Infection (D-clear Study)

A Multicenter, Randomized, Controlled, Open-label, Phase III Study to Assess Efficacy and Safety of Libevitug Injection in Participants With Chronic Hepatitis Delta Virus Infection (D-clear Study)

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07499544
Enrollment
160
Registered
2026-03-30
Start date
2026-04-22
Completion date
2030-01-29
Last updated
2026-08-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Hepatitis D Infection

Keywords

Hepatitis Delta Virus (HDV), Viral hepatitis

Brief summary

This is an international, multicenter, randomized, controlled, open-label Phase III trial. It will evaluate the efficacy and safety of libevitug in participants with chronic HDV infection.

Interventions

DRUGLibevitug 20 mg/kg

Route of administration: intravenous infusion

DRUGLibevitug 10 mg/kg

Route of administration: intravenous infusion

OTHERDelayed treatment with libevitug

Route of administration: intravenous infusion

Sponsors

Huahui Health
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
12 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Willing to sign written informed consent; * Chronic HDV history with at least 6 months; * HDV RNA ≥500 IU/mL at screening; * ALT \>1ULN and \<10×ULN; * Able to communicate well and comply with protocol.

Exclusion criteria

* Concomitant decompensated cirrhosis; * Previous or current HCC or suspicion for HCC; * Participants with history of alcoholic liver disease, nonalcoholic steatohepatitis or other clinically significant chronic liver diseases not caused by HDV/HBV; * Participants with active hepatitis C infection, or HIV infection; * Alcohol abuse or drug addiction within 1 year; * Participants have participated in other clinical trial within 1 month; * Pregnant, lactating women.

Design outcomes

Primary

MeasureTime frameDescription
Proportion of participants with HDV RNA below LLOQ with TND or a decrease of ≥ 2 log10 from baseline, and ALT normalization at Week 48 of the treatment periodWeek 48Proportion of participants with HDV RNA below Lower Limit of Quantification (LLOQ) with target not detected (TND) or a decrease of ≥ 2 log10 from baseline, and ALT normalization at Week 48 of the treatment period

Secondary

MeasureTime frameDescription
Ctrough,ssup to week 96Steady-state trough concentration of libevitug
Proportion of participants with HDV RNA below LLOQ or a decrease of ≥ 2 log10 from baseline, and ALT normalizationup to week 96
Proportion of participants with HDV RNA below LLOQ or a decrease of ≥ 2 log10 from baselineup to week 96
Proportion of participants with plasma HDV RNA achieving HDV RNA < LLOQup to week 96
Proportion of participants with ALT normalizationup to week 96
Change from baseline in liver stiffness measurement (LSM)up to week 96
Change from baseline in plasma HDV RNA levels at different time pointsup to week 96
Change from baseline in Model for End-Stage Liver Disease (MELD) score at different time pointsup to week 96
Change from baseline in Child-Pugh score at different time points during the treatment period, extended treatment period and follow-up period. (A higher Child-Pugh score indicates poorer liver function, more severe disease, and a worse prognosis)up to week 96
Percentage of participants with treatment-emergent adverse events (TEAEs)up to week 120
Liver related clinical eventsup to week 120

Countries

China, Pakistan, United States

Contacts

CONTACTJiaying Wen PM
wenjiaying@hhhbio.com+86 13552466248

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 25, 2026