Chronic Hepatitis B Virus Infection
Conditions
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
Eligibility
Design outcomes
Primary
| Measure | Time 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
| Measure | Time 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