{"nct_id":"NCT03358472","title":"Pembrolizumab Plus Epacadostat, Pembrolizumab Monotherapy, and the EXTREME Regimen in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma (KEYNOTE-669/ECHO-304)","status":"ACTIVE_NOT_RECRUITING","status_verified_date":"2025-07","start_date":"2017-12-01","start_date_type":"ACTUAL","primary_completion_date":"2018-07-19","primary_completion_date_type":"ACTUAL","completion_date":"2025-12-19","completion_date_type":"ESTIMATED","phases":["PHASE3"],"tickers":["INCY"]}