Vir Biotechnology to present complete week 96 data from Phase 2 SOLSTICE trial

Vir Biotechnology (VIR) “announced the Company will present data from the Phase 2 SOLSTICE trial evaluating the combination of tobevibart and elebsiran for chronic hepatitis delta at the upcoming EASL Congress 2026 in Barcelona, Spain, May 27-30, 2026. Tobevibart and elebsiran are investigational agents being evaluated as a novel combination regimen administered monthly as two separate sequential subcutaneous injections for the treatment of CHD. The combination is designed to disrupt the HDV life cycle at multiple points by addressing both viral entry and the sustained presence of hepatitis B surface antigen (HBsAg) that enables ongoing HDV replication. Tobevibart is an investigational broadly neutralizing monoclonal antibody (mAb) targeting HBsAg. It is designed to inhibit the entry of hepatitis B and hepatitis delta viruses into hepatocytes and to reduce the level of circulating viral and subviral particles in the blood. Tobevibart was identified using Vir Biotechnology’s proprietary mAb discovery platform. The Fc domain has been engineered to increase immune engagement and clearance of HBsAg immune complexes and incorporates Xencor’s Xtend(TM) technology to extend half-life. Elebsiran is an investigational hepatitis B virus-targeting small interfering ribonucleic acid (siRNA) licensed from Alnylam Pharmaceuticals, Inc. It is designed to degrade hepatitis B virus RNA transcripts and limit the production of HBsAg.”