{"nct_id":"NCT03999996","title":"Long-Term Safety and Antibody Persistence of TDV and the Impact of a Booster Dose","status":"COMPLETED","status_verified_date":"2025-05","start_date":"2019-11-12","start_date_type":"ACTUAL","primary_completion_date":"2024-05-25","primary_completion_date_type":"ACTUAL","completion_date":"2024-05-25","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["TAK"]}