{"nct_id":"NCT00792298","title":"Phase IIB 2-Period Crossover Polysomnography Study in Participants With Primary Insomnia (MK-4305-006)","status":"COMPLETED","status_verified_date":"2018-10","start_date":"2008-11-05","start_date_type":"ACTUAL","primary_completion_date":"2009-12-26","primary_completion_date_type":"ACTUAL","completion_date":"2009-12-26","completion_date_type":"ACTUAL","phases":["PHASE2"],"tickers":["MRK"]}