{"nct_id":"NCT00092430","title":"Study to Evaluate Frozen Versus Refrigerated MMRV (Combined Measles, Mumps, Rubella, and Varicella) Investigational Vaccine (V221-016)","status":"COMPLETED","status_verified_date":"2019-11","start_date":"2002-09-26","start_date_type":"ACTUAL","primary_completion_date":"2003-06-09","primary_completion_date_type":"ACTUAL","completion_date":"2003-06-09","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}