Pfizer Says Talzenna Prostate Cancer Study ‘Positive’
Pfizer says data from the Phase 3 TALAPRO-2 study show a statistically significant and clinically meaningful 37% reduction in risk of disease progression or death in men with metastatic castration-resistant prostate cancer treated with Talzenna (talazoparib) plus Xtandi (enzalutamide). The company also reported that FDA has granted priority review for its sNDA for Talzenna in combination with Xtandi to treat men with metastatic castration-resistant prostate cancer.
The statement says the drug combination is also being investigated in the TALAPRO-3 trial in men with homologous recombination repair-deficient metastatic castration-sensitive prostate cancer.
Talzenna is described as an oral poly ADP-ribose polymerase inhibitor that plays a role in DNA damage repair. It has been approved by FDA to treat adults with some breast cancers.
Xtandi is described as an androgen receptor inhibitor that is indicated in the U.S. to treat patients with castration-resistant prostate cancer and metastatic castration-sensitive prostate cancer.