{"nct_id":"NCT00894686","title":"Tick-Borne Encephalitis (TBE) Seropersistence After First Booster and Response to a Second Booster in Children, Adolescents and Young Adults (Follow-Up to Study 700401)","status":"COMPLETED","status_verified_date":"2018-05","start_date":"2009-04-26","start_date_type":"ACTUAL","primary_completion_date":"2017-05-10","primary_completion_date_type":"ACTUAL","completion_date":"2017-05-10","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["PFE"]}