{"nct_id":"NCT00839917","title":"A Study of ProQuad™ in Healthy Children in Korea (V221-023)","status":"TERMINATED","status_verified_date":"2017-03","start_date":"2008-02","start_date_type":null,"primary_completion_date":"2008-05","primary_completion_date_type":"ACTUAL","completion_date":"2008-05","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["MRK"]}