The purpose of this study is to evaluate the long-term safety and efficacy of pembrolizumab (MK-3475) in participants from previous Merck pembrolizumab-based parent studies who transition into this extension study. This
The purpose of this study is to characterize the pharmacokinetic (PK) profile of pembrolizumab (MK-3475) following single subcutaneous (SC) injection of pembrolizumab Dose A versus pembrolizumab Dose C in adults with
This study is a rolling arm study of pembrolizumab in combination with investigational agents in participants with anti-programmed cell death 1 (PD-1)/ programmed cell death ligand 1 (PD-L1) refractory ES-SCLC in
The primary objective of the study is to evaluate the objective response rate (ORR), by cohort, rrcHL and rrPMBCL, as assessed by the investigator according to Lugano classification criteria 2014 in
The main purpose of this study is to compare pembrolizumab/vibostolimab coformulation (MK-7684A) plus docetaxel or pembrolizumab/vibostolimab coformulation to normal saline placebo plus docetaxel. Participants with metastatic non-small cell lung cancer (NSCLC)
The purpose of this study is to assess the safety and pharmacokinetics of boserolimab (MK-5890) when administered alone and in combination with pembrolizumab (MK-3475) in adults with advanced solid tumors. The
This study will examine the safety and efficacy of pembrolizumab (MK-3475) in combination with chemotherapy in children and young adults with newly diagnosed classical Hodgkin Lymphoma (cHL) who are slow early
This is a safety, efficacy, and pharmacokinetics (PK) study of vibostolimab (MK-7684) as monotherapy and in combination with pembrolizumab (MK-3475) or pembrolizumab plus pemetrexed and carboplatin in adults with metastatic solid
This is a two-part study of pembrolizumab (MK-3475) in pediatric participants who have any of the following types of cancer: advanced melanoma (6 months to
The purpose of this study is to assess the safety and efficacy of pembrolizumab (MK-3475) combination therapy in participants with metastatic castration resistant prostate cancer (mCRPC). There will be ten cohorts
