{"nct_id":"NCT00984295","title":"Frozen ProQuad Administered Concomitantly Versus Nonconcomitantly With Other Pediatric Vaccines","status":"COMPLETED","status_verified_date":"2015-07","start_date":"2000-06","start_date_type":null,"primary_completion_date":"2001-10","primary_completion_date_type":"ACTUAL","completion_date":"2001-12","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}