{"nct_id":"NCT03828539","title":"Head-to-head Study of Erenumab Against Topiramate in Patients With Episodic and Chronic Migraine","status":"COMPLETED","status_verified_date":"2021-10","start_date":"2019-02-22","start_date_type":"ACTUAL","primary_completion_date":"2020-07-29","primary_completion_date_type":"ACTUAL","completion_date":"2020-07-29","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["NVS"]}