{"nct_id":"NCT01323647","title":"Immunogenicity and Safety of Booster Dose of PoliorixTM Vaccine in Previously Vaccinated Toddlers","status":"COMPLETED","status_verified_date":"2017-05","start_date":"2011-04-25","start_date_type":null,"primary_completion_date":"2011-09-19","primary_completion_date_type":"ACTUAL","completion_date":"2011-09-19","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["GSK"]}