{"nct_id":"NCT02446691","title":"Evaluation of Antibody Persistence Following 4 MenACWY Vaccinations","status":"COMPLETED","status_verified_date":"2019-06","start_date":"2015-07-13","start_date_type":"ACTUAL","primary_completion_date":"2017-12-28","primary_completion_date_type":"ACTUAL","completion_date":"2017-12-28","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["GSK"]}