FDA OKs Akeega for BRCA2-Mutated Metastatic Prostate Cancer

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FDA has approved Janssen’s Akeega — a fixed-dose combination of niraparib and abiraterone acetate — with prednisone for adults with metastatic castration-sensitive prostate cancer (mCSPC) harboring deleterious or suspected deleterious BRCA2 mutations. The approval requires use of an FDA-authorized companion diagnostic to confirm BRCA2 status.

The decision marks the first U.S. approval of a PARP inhibitor–abiraterone combination in the front-line metastatic castration-sensitive setting for a molecularly selected prostate cancer subgroup, according to an FDA release.

FDA based its decision on data from the Phase 3 AMPLITUDE study (NCT04497844), a 696-patient, randomized, double-blind trial comparing niraparib plus abiraterone/prednisone (AAP) against placebo plus AAP, FDA says. The study’s primary endpoint, radiographic progression-free survival (rPFS), was met in the overall homologous recombination repair gene–mutated population, but the agency highlighted that the magnitude of benefit was largely concentrated among the 323 patients with BRCA2 mutations. In that subgroup, niraparib plus AAP cut the risk of radiographic progression or death by 54% versus control.

Additionally, FDA saya Akeega’s prescribing information includes warnings for myelodysplastic syndrome/acute myeloid leukemia, myelosuppression, hypokalemia, fluid retention and cardiovascular adverse reactions, hepatotoxicity, adrenocortical insufficiency, hypoglycemia, increased fractures and mortality when used with radium-223, posterior reversible encephalopathy syndrome, and embryo-fetal toxicity.

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