Arbutus and Vaccitech Dose First Patient in Phase 2a Clinical Trial Combining Therapies for the Treatment of Chronic Hepatitis B Virus

Warminster, PA and Oxford, UK — Arbutus Biopharma Corporation (Nasdaq: ABUS), a clinical-stage biopharmaceutical company leveraging its extensive virology expertise to develop novel therapeutics that target specific viral diseases, and Vaccitech plc (Nasdaq: VACC), a clinical-stage biopharmaceutical company engaged in the discovery and development of novel immunotherapeutics and vaccines, today announced the first patient dosed in a Phase 2a clinical trial. This trial will evaluate Arbutus’ RNAi therapeutic candidate, AB-729, in combination with Vaccitech’s T-cell stimulating immunotherapeutic, VTP-300, and standard-of-care nucleos(t)ide reverse transcriptase inhibitor (NA) therapy for the treatment of patients with virologically-suppressed chronic HBV infection (cHBV).

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