{"nct_id":"NCT01516437","title":"A Study to Assess Immunity to Specific Microbial Antigens in Healthy Smokers and Non-smokers and in Subjects With Stable COPD","status":"COMPLETED","status_verified_date":"2017-04","start_date":"2012-02-01","start_date_type":"ACTUAL","primary_completion_date":"2012-06-28","primary_completion_date_type":"ACTUAL","completion_date":"2012-12-20","completion_date_type":"ACTUAL","phases":["NA"],"tickers":["GSK"]}