Pfizer’s Talzenna OK’d for Breast Cancer

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FDA has approved Pfizer’s Talzenna (talazoparib), a poly (ADP-ribose) polymerase inhibitor for patients with deleterious or suspected deleterious germline BRCA-mutated, HER2‑negative locally advanced or metastatic breast cancer. Patients must be selected for therapy based on results from companion diagnostic BRACAnalysis CDx test (Myriad Genetic Laboratories), an FDA release says.

 

Approval was based on data from the EMBRACA open-label trial that randomized 431 patients (2:1) to receive talazoparib (1 mg) or physician’s choice of chemotherapy (capecitabine, eribulin, gemcitabine, or vinorelbine). Estimated median progression-free survival was 8.6 and 5.6 months in the talazoparib and chemotherapy arms, respectively, it says.


The prescribing information includes warnings and precautions for myelodysplastic syndrome/acute myeloid leukemia, myelosuppression, and embryo-fetal toxicity. Most common adverse reactions of any grade were fatigue, anemia, nausea, neutropenia, headache, thrombocytopenia, vomiting, alopecia, diarrhea, decreased appetite.

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