{"nct_id":"NCT04875195","title":"A Study of Pembrolizumab (MK-3475) in Relapsed or Refractory Classical Hodgkin's Lymphoma (rrcHL) or Relapsed or Refractory Primary Mediastinal Large B-cell Lymphoma (rrPMBCL) (MK-3475-B68)","status":"ACTIVE_NOT_RECRUITING","status_verified_date":"2025-09","start_date":"2021-06-07","start_date_type":"ACTUAL","primary_completion_date":"2023-12-14","primary_completion_date_type":"ACTUAL","completion_date":"2025-10-13","completion_date_type":"ESTIMATED","phases":["PHASE2"],"tickers":["MRK"]}