{"nct_id":"NCT03536390","title":"A 6-week Study to Evaluate the Safety and Efficacy of Methylphenidate HCl ERCT in 4-5 Year Old Children With ADHD","status":"WITHDRAWN","status_verified_date":"2018-10","start_date":"2018-09-19","start_date_type":"ESTIMATED","primary_completion_date":"2021-04-22","primary_completion_date_type":"ESTIMATED","completion_date":"2021-04-22","completion_date_type":"ESTIMATED","phases":["PHASE4"],"tickers":["PFE"]}