AstraZeneca's Lynparza plus abiraterone approved in Japan for treatment of BRCA-mutated metastatic castration-resistant prostate cancer
Cambridge: AstraZeneca and MSD’s Lynparza (olaparib) in combination with abiraterone and prednisolone has been approved in Japan for the treatment of adult patients with BRCA-mutated (BRCAm) castration-resistant prostate cancer with distant metastasis (mCRPC).
This approval by the Japanese Ministry of Health, Labour and Welfare was based on a subgroup analysis of the PROpel Phase III trial which showed that Lynparza plus abiraterone demonstrated highly clinically meaningful improvements in both radiographic progression-free survival (rPFS) and overall survival (OS) versus abiraterone alone in patients with BRCA mutations.
Prostate cancer is the most common cancer in men in Japan and the sixth leading cause of cancer death in the region. Despite various treatment options available, the prognosis for mCRPC remains poor, with limited options for patients whose cancer progresses following initial treatment.
Mototsugu Oya, Professor and Chairman, Department of Urology, Keio University School of Medicine, Japan, said, “The PROpel trial showed that the combination of Lynparza plus abiraterone delivered clinically meaningful improvements in outcomes for patients with BRCA-mutated metastatic castration-resistant prostate cancer. With this approval, patients in Japan will now have the opportunity to benefit from this new treatment combination which has the potential to become the new standard of care for patients with BRCA mutations.”
Lynparza monotherapy is also approved in Japan for patients with BRCAm mCRPC based on results from the PROfound Phase III trial. It is approved in the EU and China for the same indication, as well as in the US for patients with homologous recombination repair (HRR) gene-mutated mCRPC (BRCA and other HRR gene mutations) who have progressed following prior treatment with enzalutamide or abiraterone.
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