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A Phase 2 Study to Evaluate the Safety, Tolerability, and Efficacy of Regimens Containing VIR-2218, VIR-3434, and/or PEG-IFNα in Subjects with Chronic Hepatitis B Virus Infection

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-513177-48-00
Acronym
VIR-2218-1006
Enrollment
24
Registered
2024-09-18
Start date
2022-06-16
Completion date
Unknown
Last updated
2025-12-02

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

Conditions

Chronic Hepatitis B Virus Infection

Brief summary

• Proportion of subjects with treatment-emergent adverse events (TEAEs) • Proportion of subjects with serious adverse events (SAEs) • Proportion of subjects with HBsAg loss (defined as undetectable HBsAg) at end of treatment • Proportion of subjects with HBsAg loss (defined as undetectable HBsAg) at 24 weeks post-end of treatment

Detailed description

• Proportion of subjects achieving functional cure (defined as undetectable HBsAg and sustained suppression of HBV DNA [below the lower limit of quantification (< LLOQ), target not detected (TND)] for ≥ 24 weeks after discontinuation of all treatment, including NRTIs) • Proportion of subjects with serum HBsAg < 10 IU/mL at end of treatment • Proportion of subjects with serum HBsAg < 10 IU/mL at 24 weeks post-end of treatment, • Absolute serum HBsAg and change from baseline across timepoints in the study • Nadir and maximum reduction of serum of HBsAg from baseline • Time to achieve nadir of serum HBsAg • Time to achieve serum HBsAg loss • Proportion of subjects achieving sustained suppression of HBV DNA (< LLOQ for ≥ 24 weeks after discontinuation of all treatment, including NRTIs) • For HBeAg-positive subjects: proportion of subjects with HBeAg loss (undetectable HBeAg) and/or anti-HBe seroconversion, • For HBeAg-positive subjects: time to HBeAg loss (undetectable HBeAg) and/or anti-HBe seroconversion • Proportion of subjects with anti-HBs seroconversion • VIR-3434 PK parameters • Incidence and titers of anti-drug antibodies (ADA; if applicable) to VIR-3434 • Proportion of subjects meeting criteria for NRTI discontinuation • Proportion of subjects meeting criteria for NRTI retreatment

Interventions

Sponsors

Vir Biotechnology Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to 64 Years

Design outcomes

Primary

MeasureTime frame
• Proportion of subjects with treatment-emergent adverse events (TEAEs) • Proportion of subjects with serious adverse events (SAEs) • Proportion of subjects with HBsAg loss (defined as undetectable HBsAg) at end of treatment • Proportion of subjects with HBsAg loss (defined as undetectable HBsAg) at 24 weeks post-end of treatment

Secondary

MeasureTime frame
• Proportion of subjects achieving functional cure (defined as undetectable HBsAg and sustained suppression of HBV DNA [below the lower limit of quantification (< LLOQ), target not detected (TND)] for ≥ 24 weeks after discontinuation of all treatment, including NRTIs) • Proportion of subjects with serum HBsAg < 10 IU/mL at end of treatment • Proportion of subjects with serum HBsAg < 10 IU/mL at 24 weeks post-end of treatment, • Absolute serum HBsAg and change from baseline across timepoints in the study • Nadir and maximum reduction of serum of HBsAg from baseline • Time to achieve nadir of serum HBsAg • Time to achieve serum HBsAg loss • Proportion of subjects achieving sustained suppression of HBV DNA (< LLOQ for ≥ 24 weeks after discontinuation of all treatment, including NRTIs) • For HBeAg-positive subjects: proportion of subjects with HBeAg loss (undetectable HBeAg) and/or anti-HBe seroconversion, • For HBeAg-positive subjects: time to HBeAg loss (undetectable HBeAg) and/or anti-

Countries

Germany, Romania

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026