Bristol Myers Squibb Receives European Commission Approval for Opdivo (nivolumab) Plus Yervoy (ipilimumab) as First-Line Treatment for Unresectable Malignant Pleural Mesothelioma

- OS?(primary endpoint):?Treatment with?Opdivo?plus?Yervoy?reduced the risk of death by 26% (Hazard Ratio [HR] 0.74, 96.6% Confidence Interval [CI]: 0.60 to 0.91; p=0.002), demonstrating a median OS of 18.1 months vs. 14.1 months for platinum-based standard-of-care chemotherapy.
- Overall response rate (ORR): ORR was similar across the?Opdivo?plus?Yervoy?and chemotherapy arms at 40% (95% CI: 34.1 to 45.4) and 43% (95% CI: 37.1 to 48.5), respectively.
- Duration of response (DoR):?DoR was improved with the dual immunotherapy combination (11.0 months; 95% CI: 8.1 to 16.5) compared to chemotherapy alone (6.7 months; 95% CI: 5.3 to 7.1). Of the patients who responded to?Opdivo?plus?Yervoy, 32% had ongoing responses at two years (vs. 8% of chemotherapy responders).
- Progression-free survival (PFS):?The median time that patients lived without disease progression or death was 6.8 months with?Opdivoplus?Yervoy?and 7.2 months with chemotherapy (HR: 1.00, 95% CI: 0.82 to 1.21).
- Safety:?The most frequent adverse reactions, occurring in 10% or more of patients treated with?Opdivoplus?Yervoy, were fatigue (43%), diarrhea (31%), rash (30%), musculoskeletal pain (27%), nausea (24%), decreased appetite (24%), pruritus (21%), constipation (19%) and hypothyroidism (13%).