ABSTRACT
Introduction: Drug survival in open-label, long-term extension (OLE) studies may provide information on the long-term efficacy and tolerability of a therapy. Methods: We present data on the persistence of tofacitinib treatment in the OLE study for: (1) delayed responders: induction non-responders (pts who did not achieve a clinical response [CR] after 8 weeks [wks] induction treatment with tofacitinib 10 mg BID) who achieved a CR at Wk 8 (total of 16 wks induction) of the OLE study and continued to receive 10 mg BID;(2) retreatment responders: tofacitinib 10 mg BID induction responders who experienced treatment failure with PBO in OCTAVE Sustain and entered the OLE study and received 10 mg BID, and achieved a CR at Wk 8 of the OLE study;and (3) dose escalation responders: tofacitinib 10 mg BID induction responders who experienced treatment failure with 5 mg BID in OCTAVE Sustain and entered the OLE study and received 10 mg BID, and achieved a CR at Wk 8 of the OLE study (Figure 1). The calculations are based on non-responder imputation incorporating multiple imputation to handle missing data due to COVID-19 or non-responder imputation only if there are no missing data due to COVID-19. 3CDAI < 150 4Average daily stool frequency (SF) ≤ 2.8 and not worse than baseline AND average daily abdominal pain (AP) score ≤ 1 and not worse than baseline 5Decrease in SES-CD > 50% from baseline (or for subjects with isolated ileal disease and a baseline SES-CD of 4, at least a 2-point reduction from baseline), as scored by central readers.