{"nct_id":"NCT00197223","title":"Post-marketing Study to Evaluate the Efficacy of Influenza Vaccine","status":"COMPLETED","status_verified_date":"2017-03","start_date":"2005-09","start_date_type":null,"primary_completion_date":"2005-10","primary_completion_date_type":"ACTUAL","completion_date":"2006-05","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["GSK"]}