{"nct_id":"NCT01900899","title":"Persistence of Antibodies After Meningococcal Vaccine PF-06866681 in Healthy Children","status":"COMPLETED","status_verified_date":"2019-03","start_date":"2013-07","start_date_type":"ACTUAL","primary_completion_date":"2017-11","primary_completion_date_type":"ACTUAL","completion_date":"2017-11","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["PFE"]}