Primary Outcome
Open
Safety and tolerability of itacitinib as assessed by the changes in frequency and severity of adverse events, ECGs, vital signs, physical examinations, and clinical laboratory evaluations.
Timeframe: Approximately four months.
Preliminary efficacy as assessed by the percentage of patients achieving ACR20 improvement from baseline on the day 28 and day 84 visits.
Timeframe: Approximately 84 days.