{"nct_id":"NCT00657657","title":"Safety and Immunogenicity of a Booster Dose of GlaxoSmithKline (GSK) Biologicals' Hepatitis B Vaccine","status":"COMPLETED","status_verified_date":"2016-10","start_date":"2008-04","start_date_type":null,"primary_completion_date":"2008-08","primary_completion_date_type":"ACTUAL","completion_date":"2008-08","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["GSK"]}