{"nct_id":"NCT01106482","title":"An Extension Study to Determine the Persistence of Tick-borne Encephalitis (TBE)-Specific Antibody Responses Among Children and Adolescents Previously Immunized Against TBE","status":"COMPLETED","status_verified_date":"2011-12","start_date":"2009-05","start_date_type":null,"primary_completion_date":"2011-05","primary_completion_date_type":"ACTUAL","completion_date":"2011-05","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["NVS"]}