Results from the phase 3 CHECKMATE-901 trial led to the approval of nivolumab plus cisplatin and gemcitabine for patients with unresectable or metastatic urothelial carcinoma.
The FDA has approved nivolumab (Opdivo) plus cisplatin and gemcitabine as first-line treatment for patients with unresectable or metastatic urothelial carcinoma, according to a press release from the FDA.1
The approval is based on results from the phase 3 CHECKMATE-901 trial (NCT03036098), which assessed 608 patients with previously untreated unresectable or metastatic urothelial carcinoma.2 Patients were randomly assigned 1:1 to the combination arm for up to 6 cycles followed by nivolumab alone for up to 2 years or the chemotherapy arm for up to 6 cycles.
The median overall survival was 21.7 months (95% CI, 18.6-26.4) in the combination arm vs 18.9 months (95% CI, 14.7-22.4) in the chemotherapy alone arm (HR, 0.78; 95% CI, 0.63-0.96; P = .0171). The median progression-free survival was 7.9 months (95% CI, 7.6-9.5) vs 7.6 months (95% CI, 6.0-7.8) between both arms, respectively. (HR, 0.72; 95% CI, 0.59-0.88; P = .0012).
The recommended dose of nivolumab in this indication is 360 mg every 3 weeks plus cisplatin and gemcitabine every 3 weeks for 6 weeks followed by nivolumab at 240 mg every 2 weeks or 480 mg every 4 weeks as monotherapy until progressive disease, unacceptable toxicity, or a maximum treatment duration of 2 years from the first dose.
The most common adverse effects that occurred in 15% or more of patients in the combination arm included nausea, fatigue, musculoskeletal pain, constipation, decreased appetite, rash, and vomiting.