{"nct_id":"NCT03294135","title":"The Aim of This Study is to Investigate the Persistence of Antibody Response in Adults up to 15 Years After One Booster Dose of GlaxoSmithKline (GSK) Biologicals' Encepur Adults Vaccine","status":"COMPLETED","status_verified_date":"2023-09","start_date":"2017-10-05","start_date_type":"ACTUAL","primary_completion_date":"2021-10-25","primary_completion_date_type":"ACTUAL","completion_date":"2021-10-25","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["GSK"]}