{"nct_id":"NCT02052661","title":"This Study Aims to Determine the Long-term Persistence of Antibodies Against Hepatitis B and to Evaluate the Immunogenicity and Safety of Hepatitis B Vaccine in Adolescents Vaccinated in Infancy With Infanrix™ Hexa","status":"COMPLETED","status_verified_date":"2017-04","start_date":"2014-02-18","start_date_type":null,"primary_completion_date":"2014-09-23","primary_completion_date_type":"ACTUAL","completion_date":"2014-09-23","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["GSK"]}