Hepatitis B Virus (HBV) – data expected from multiple trials in the near-term
The Company recently announced that multiple abstracts (two oral presentations, one poster and one late-breaker poster featuring real-world data from a 20-year trial evaluating treatment patterns for chronic HBV) were accepted for presentation at the American Association for the Study of Liver Diseases (AASLD) The Liver Meeting® 2022, taking place November 4-8. Both oral presentations have been selected by AASLD for inclusion in the “Best of the Liver Meeting” summary.
Initial data from Part B of the ongoing Phase 2 Monoclonal Antibody siRNA Combination against Hepatitis B (MARCH) trial evaluating VIR-2218 in combination with VIR-3434 for 24 and 48 weeks, and in triple combination with VIR-3434 and interferon for 24 and 48 weeks, are expected in the second half of 2023. Previously reported results from the MARCH Part A trial demonstrated that the combination of VIR-3434 and VIR-2218 resulted in an approximate 3 log decline in hepatitis B surface antigen (HBsAg) with no safety signals reported to date.
Initiation of the Phase 2 PREVAIL platform trial and its THRIVE/STRIVE sub-protocols of VIR-2218 in combination with VIR-3434 in viremic patients is expected in the fourth quarter of 2022, with initial data expected in the second half of 2023.
Initial data from the Phase 2 trial led by Brii Biosciences evaluating VIR-2218 in combination with BRII-179, an investigational T cell vaccine, for the potential treatment of chronic HBV infection are expected by the end of 2022.