• Merck and Co. Inc., of Whitehouse Station, N.J., presented early interim results from a single-arm, open-label Phase Ib study of MK-3475, its investigational immune-modulating therapy, in advanced melanoma. Based on data for 85 of 132 patients enrolled in the study to date, 43 patients (51 percent) showed an objective antitumor response and eight patients (9 percent) showed a complete response at or after the 12-week assessment.