{"nct_id":"NCT00326183","title":"Hepatitis A Vaccine, Inactivated and Measles, Mumps, Rubella and Varicella Virus Vaccine Live Safety Study (V251-066)(COMPLETED)","status":"COMPLETED","status_verified_date":"2019-01","start_date":"2007-03-26","start_date_type":"ACTUAL","primary_completion_date":"2008-01-15","primary_completion_date_type":"ACTUAL","completion_date":"2008-01-15","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["MRK"]}