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Phase Ib Trial of Pembrolizumab (MK-3475) in Combination With Dinaciclib (MK-7965) in Subjects With Hematologic Malignancies
This is a non-randomized, open-label study evaluating the safety and efficacy of pembrolizumab (MK-3475) used in combination with dinaciclib (MK-7965) in the treatment of relapsed or refractory chronic lymphocytic leukemia (rrCLL), multiple myeloma (rrMM), or diffuse large B-cell lymphoma (rrDLBCL) in up to 138 participants from multiple sites.
During an initial Dose Evaluation phase (first 2 cycles) to determine Dose Limiting Toxicities (DLTs), dose combinations of pembrolizumab 200 mg followed by dinaciclib 7 mg/m^2, pembrolizumab 200 mg followed by dinaciclib 10 mg/m^2, and pembrolizumab 200 mg followed by dinaciclib 14 mg/m^2 will be evaluated. Following safety review of the Dose Evaluation Phase, approximately 30 participants each will be enrolled in rrCLL, rrMM, or DLBCL cohorts during the Signal Detection phase. For each disease type objective response rate (ORR) will be determined by disease specific criteria.
**Exclusion**: Has received prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CD137, or anti-Cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) antibody