On December 19, 2014, the FDA approved olaparib capsules (Lynparza; AstraZeneca) for the treatment of patients with deleterious or suspected deleterious germline BRCAmutated (gBRCAm) advanced ovarian cancer who have been treated with three or more prior lines of chemotherapy. The BRACAnalysis CDx (Myriad Genetic Laboratories, Inc.) was approved concurrently. An international multicenter, singlearm trial enrolled 137 patients with measurable gBRCAmassociated ovarian cancer treated with three or more prior lines of chemotherapy. Patients received olaparib at a dose of 400 mg by mouth twice daily until disease progression or unacceptable toxicity. The objective response rate (ORR) was 34% with median response duration of 7.9 months in this cohort. The most common adverse reactions (!20%) in patients treated with olaparib were anemia, nausea, fatigue (including asthenia), vomiting, diarrhea, dysgeusia, dyspepsia, headache, decreased appetite, nasopharyngitis/pharyngitis/ upper respiratory infection, cough, arthralgia/musculoskeletal pain, myalgia, back pain, dermatitis/rash, and abdominal pain/discomfort. Myelodysplatic syndrome and/or acute myeloid leukemia occurred in 2% of the patients enrolled on this trial.

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On April 25, 2016, the FDA approved cabozantinib (Cabometyx; Exelixis, Inc.) for the treatment of advanced renal cell carcinoma (RCC) in patients who have received prior antiangiogenic therapy. The approval was based on data from one randomized, open-label, multicenter study in which patients with RCC who had received prior antiangiogenic therapy were treated with either cabozantinib 60 mg orally once daily (n = 330) or everolimus 10 mg orally once daily (n = 328). The major efficacy outcome measure was progression-free survival (PFS) as assessed by a blinded independent radiology review committee in the first 375 randomized patients. A statistically significant improvement in PFS was seen, with a median PFS of 7.4 and 3.8 months in the cabozantinib and everolimus arms, respectively [hazard ratio (HR), 0.58; 95% confidence interval (CI), 0.45-0.74; P < 0.0001]. At a second interim analysis, a statistically significant improvement in overall survival (OS) in the intent-to-treat population was also demonstrated, with a median OS of 21.4 and 16.5 months in the cabozantinib and everolimus arms, respectively (HR, 0.66; 95% CI, 0.53-0.83; P = 0.0003). The most common (greater than or equal to 25%) adverse reactions included diarrhea, fatigue, nausea, decreased appetite, palmar-plantar erythrodysesthesia syndrome, hypertension, vomiting, weight loss, and constipation. Clin Cancer Res; 23(2); 330-5. ©2016 AACR.

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