{"nct_id":"NCT00534261","title":"Does Quality of Life Improve in Multiple Sclerosis Patients Treated With Interferon Beta-1a?","status":"COMPLETED","status_verified_date":"2007-12","start_date":"1999-11","start_date_type":null,"primary_completion_date":null,"primary_completion_date_type":null,"completion_date":"2004-02","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["BIIB"]}