Junshi Biosciences Announces Phase 3 Clinical Study of Senaparib for Advanced Ovarian Cancer Maintenance Treatment Following First-line Therapy Met Primary Endpoint

SHANGHAI, China, April 11, 2023 (GLOBE NEWSWIRE) — Shanghai Junshi Biosciences Co., Ltd (鈥淛unshi Biosciences鈥? HKEX: 1877; SSE: 688180), a leading innovation-driven biopharmaceutical company dedicated to the discovery, development, and commercialization of novel therapies, today announced that a randomized, double-blind, placebo-controlled, multi-center phase III clinical study (鈥淔LAMES Study鈥? NCT04169997) investigating the poly (ADP-ribose) polymerase (鈥淧ARP鈥? inhibitor, senaparib (product code: JS109/IMP4297), had finished its pre-specified interim analysis. Senaparib was jointly developed by Junshi Biosciences and IMPACT Therapeutics, Inc. (鈥淚MPACT Therapeutics鈥?, as a maintenance treatment following first-line platinum-based chemotherapy in patients with International Federation of Gynecology and Obstetrics (鈥淔IGO鈥? stage III/IV ovarian carcinoma, fallopian tube cancer or primary peritoneal cancer who achieved a complete response or partial response. The Independent Data Monitoring Committee (the 鈥淚DMC鈥? concluded that the primary endpoint had met the pre-defined efficacy boundary. Junshi Biosciences and IMPACT Therapeutics will communicate with regulatory authorities regarding a new drug application for the drug in the near future.