{"nct_id":"NCT02576990","title":"Study of Pembrolizumab (MK-3475) in Participants With Relapsed or Refractory Primary Mediastinal Large B-cell Lymphoma or Relapsed or Refractory Richter Syndrome (MK-3475-170/KEYNOTE-170)","status":"COMPLETED","status_verified_date":"2023-07","start_date":"2015-12-02","start_date_type":"ACTUAL","primary_completion_date":"2019-05-28","primary_completion_date_type":"ACTUAL","completion_date":"2020-10-23","completion_date_type":"ACTUAL","phases":["PHASE2"],"tickers":["MRK"]}