{"nct_id":"NCT03513068","title":"Portable Oxygen Concentrator Improvements to Physical Activity, Oxygen Usage, and Quality of Life in Chronic Obstructive Pulmonary Disease Patients Using Long-term Oxygen Therapy (POC-STEP)","status":"TERMINATED","status_verified_date":"2021-09","start_date":"2018-07-24","start_date_type":"ACTUAL","primary_completion_date":"2020-09-02","primary_completion_date_type":"ACTUAL","completion_date":"2020-09-02","completion_date_type":"ACTUAL","phases":["NA"],"tickers":["RMD"]}