{"nct_id":"NCT00820664","title":"A Clinical Study to Evaluate the Effects of Estrogen in Healthy Postmenopausal Women","status":"COMPLETED","status_verified_date":"2016-01","start_date":"2008-12","start_date_type":null,"primary_completion_date":"2009-05","primary_completion_date_type":"ACTUAL","completion_date":"2009-05","completion_date_type":"ACTUAL","phases":["PHASE1"],"tickers":["MRK"]}