{"nct_id":"NCT01847430","title":"Evaluation of the Long-term Persistence of Immunity to Hepatitis B, in Adolescents Vaccinated in Infancy With Engerix™-B Kinder","status":"COMPLETED","status_verified_date":"2018-06","start_date":"2013-07-19","start_date_type":null,"primary_completion_date":"2014-02-21","primary_completion_date_type":"ACTUAL","completion_date":"2014-02-21","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["GSK"]}