{"nct_id":"NCT00566527","title":"Comparative Study of Immunogenicity and Safety of a 2-dose Regimen of ProQuad® Manufactured With rHA (V221-038)","status":"COMPLETED","status_verified_date":"2018-01","start_date":"2007-11-29","start_date_type":"ACTUAL","primary_completion_date":"2008-12-29","primary_completion_date_type":"ACTUAL","completion_date":"2008-12-29","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}