{"nct_id":"NCT00551915","title":"A Study of the Safety and Tolerability of V419 in Healthy Infants at 2,4, 6 and 12 to 14 Months of Age (V419-003)","status":"COMPLETED","status_verified_date":"2015-10","start_date":"2001-05","start_date_type":null,"primary_completion_date":"2003-01","primary_completion_date_type":"ACTUAL","completion_date":"2003-01","completion_date_type":"ACTUAL","phases":["PHASE2"],"tickers":["MRK"]}