CHICAGO – The combination of Bristol-Myers Squibb Co.’s CTLA-4 inhibitor Yervoy (ipilimumab) and PD-1 inhibitor nivolumab will need to show very high survival rates in large studies to secure a role in frontline treatment of melanoma, in light of the significant toxicities for the combo and the strong performance of PD-1 monotherapy, said specialists at the American Society of Clinical Oncology annual meeting.
In follow-up data for the combo in 53 Stage 3/4 melanoma patients taking part in a broader Phase I trial, presented at the ASCO meeting on June 2, researchers reported an objective response rate (ORR) of 40%, for this population, half of whom had very advanced disease and half who were naïve to systemic treatment. One- and two-year survival rates were 85% and 79%
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