{"nct_id":"NCT00092417","title":"Evaluation of the Safety and Tolerability of a Higher Potency Dose of an Investigational Vaccine Among Adults 50 Years of Age and Older (V211-009)","status":"COMPLETED","status_verified_date":"2015-10","start_date":"2003-10","start_date_type":null,"primary_completion_date":"2004-06","primary_completion_date_type":"ACTUAL","completion_date":"2004-06","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}