Opdivo Produces Similar Rates of Responses in Melanoma with and Without BRAF Mutation

“A pooled analysis of four clinical trials of nivolumab (Opdivo) in advanced melanoma, reported by Larkin et al in JAMA Oncology, suggested similar response rates in patients with BRAF V600 mutant and BRAF wild-type disease.

“The retrospective analysis included data from adult patients with unresectable stage III or stage IV melanoma from four clinical trials. Nivolumab was given at 0.1, 0.3, 1.0, 3.0, or 10.0 mg/kg every 2 weeks until disease progression, treatment discontinuation due to adverse events, withdrawal, or end of study, with 83% of patients receiving the 3 mg/kg dose. Overall, 72% of patients in the BRAF mutant group had received prior BRAF inhibitor therapy. A total of 73% of patients in the BRAF wild-type group and 86% in the mutant group had received at least two prior therapies for advanced disease.

“The investigators concluded, ‘The results of this retrospective analysis suggest that nivolumab has similar efficacy and safety outcomes in patients with wild-type or mutant BRAF, regardless of prior BRAF inhibitor or ipilimumab treatment.’ “