{"nct_id":"NCT00432042","title":"Immunogenicity and Safety Study of Proquad® and Infanrix® Hexa When Administered Concomitantly (V221-035)","status":"COMPLETED","status_verified_date":"2018-02","start_date":"2007-01-12","start_date_type":"ACTUAL","primary_completion_date":"2008-03-27","primary_completion_date_type":"ACTUAL","completion_date":"2008-03-27","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}