Medical Uses
Akeega (niraparib and abiraterone acetate) is a fixed-dose combination tablet — a PARP inhibitor (niraparib) together with an androgen biosynthesis (CYP17) inhibitor (abiraterone acetate) — taken with prednisone. It is approved for two BRCA-mutated prostate cancer settings, each confirmed by an FDA-approved companion diagnostic test.
BRCA-mutated metastatic castration-resistant prostate cancer (mCRPC): approved August 11, 2023, based on the MAGNITUDE trial.
BRCA2-mutated metastatic castration-sensitive prostate cancer (mCSPC): approved December 12, 2025, based on the AMPLITUDE trial.
Both indications require patients to be on concurrent gonadotropin-releasing hormone (GnRH) analog therapy or to have undergone bilateral orchiectomy, and require confirmed BRCA1/2 mutation status via an FDA-approved test. Niraparib blocks PARP-1/PARP-2 DNA-repair enzymes, which is especially damaging to tumor cells that already carry a BRCA1/2 mutation, while abiraterone acetate blocks CYP17 to cut off androgen production that fuels prostate cancer growth.
