Salese, Leonardo

Abstract Background In patients with ulcerative colitis (UC), risks of infection and malignancies increase with age. Tofacitinib is an oral, small molecule Janus kinase inhibitor for the treatment of UC. This analysis assessed age as a risk factor for adverse events of special interest (AESI) in the tofacitinib UC clinical program. Methods Data were from phase 2 and 3 induction studies, a phase 3 maintenance study, and an open-label, long-term extension study. Efficacy and/or safety outcomes were analyzed in the Induction, Maintenance, and Overall Cohorts (patients who received ≥ 1 dose of tofacitinib), stratified by age. The effects of baseline demographic and disease-related factors on AESI incidence were assessed by Cox proportional-hazards regression analysis. Results In the Overall Cohort (1157 patients with ≤ 6.8 years’ tofacitinib treatment), age was a statistically significant predictor of herpes zoster (HZ), malignancies excluding nonmelanoma skin cancer (NMSC), and NMSC. Other statistically significant predictors included prior tumor necrosis factor inhibitor failure for HZ, NMSC, and opportunistic infection events, and prior duration of UC for malignancies excluding NMSC. In the Induction and Maintenance Cohorts, a higher proportion of tofacitinib-treated than placebo-treated patients (numerical difference) achieved the efficacy endpoints (endoscopic improvement, clinical remission, clinical response) across all age groups. Conclusions Older individuals receiving tofacitinib as induction and maintenance therapy to treat UC may have an increased risk of HZ, malignancies (excluding NMSC), and NMSC versus similarly treated younger patients, consistent with findings from the general population. Across all age groups, tofacitinib demonstrated greater efficacy than placebo as an induction and maintenance therapy. ClinicalTrials.gov Registration Numbers NCT00787202; NCT01465763; NCT01458951; NCT01458574; NCT01470612.

Abstract Background Tofacitinib is an oral, small molecule Janus kinase inhibitor for the treatment of ulcerative colitis (UC). Patients with inflammatory bowel disease are susceptible to Clostridium difficile infection (CDI). Here, we evaluate CDI in the tofacitinib UC clinical program. Methods Events from 4 randomized, placebo-controlled studies (phase [P] 2 or P3 induction [NCT00787202; NCT01465763; NCT01458951], P3 maintenance [NCT01458574]) and an open-label, long-term extension (OLE) study (NCT01470612), were analyzed as 3 cohorts: Induction (P2/P3 induction), Maintenance (P3 maintenance), and Overall (patients receiving tofacitinib 5 or 10 mg twice daily [BID] in P2, P3, and OLE studies; including final data from the OLE study, as of August 24, 2020). Proportions and incidence rates (unique patients with events per 100 patient-years of exposure) of CDI were evaluated. Results The overall cohort comprised 1157 patients who received ≥1 dose of tofacitinib 5 or 10 mg BID, with a total of 2814.4 patient-years of tofacitinib exposure and up to 7.8 years of treatment. A total of 82.6% of patients received predominantly tofacitinib 10 mg BID. In the induction, maintenance, and overall cohorts, 3 (2 tofacitinib treated, 1 placebo treated), 3 (all placebo treated), and 9 patients had CDI, respectively; the overall cohort incidence rate was 0.31 (95% confidence interval, 0.14-0.59). CDI were all mild–moderate in severity and resolved with treatment in 8 patients. Six of 9 patients continued tofacitinib treatment without interruption. Two patients had events reported as serious due to hospitalization. Two patients were receiving corticosteroids when the CDI occurred. Conclusion CDIs among patients with UC receiving tofacitinib were infrequent, cases were mild–moderate in severity, and most resolved with treatment.

Abstract Background and Aims Tofacitinib is an oral, small molecule Janus kinase inhibitor for the treatment of ulcerative colitis. Here, we evaluate the efficacy and safety of tofacitinib re-treatment following treatment interruption in patients with ulcerative colitis. Methods Here, patients with clinical response to tofacitinib 10 mg b.d. induction therapy were randomised to receive placebo in OCTAVE Sustain. Those experiencing treatment failure after Week 8 of OCTAVE Sustain entered OCTAVE Open and re-initiated tofacitinib 10 mg b.d. [re-treatment subpopulation]; efficacy and safety data are presented up to Month 36 of OCTAVE Open. Results Median time to treatment failure following interruption was 169 (95% confidence interval [CI], 94.0–179.0) and 123 [95% CI, 91.0–168.0] days for induction remitters, and induction responders but non-remitters, respectively. Following re-treatment with tofacitinib, rates (non-responder imputation after a patient discontinued; latest observation carried forward imputation after a patient advanced to a subsequent study [NRI-LOCF]) of clinical response, remission, and endoscopic improvement were 74.0%, 39.0%, and 55.0% at Month 2, and 48.5%, 37.4%, and 42.4% at Month 36, respectively. Among induction remitters and induction responders but non-remitters, clinical response rates at Month 36 were 60.6% and 42.4% [NRI-LOCF], respectively. Efficacy was recaptured regardless of prior tumour necrosis factor inhibitor failure status. The safety profile of tofacitinib 10 mg b.d. re-treatment was consistent with the overall cohort and demonstrated no new safety risks associated with exposure of ≤36 months. Conclusions Median time to treatment failure was numerically higher in induction remitters versus induction responders but non-remitters. Following treatment interruption, efficacy was safely and successfully recaptured with tofacitinib 10 mg b.d. re-treatment in a substantial proportion of patients [ClinicalTrials.gov:NCT01458574;NCT01470612].

Abstract Background and Aims Tofacitinib is an oral, small molecule JAK inhibitor for the treatment of ulcerative colitis. We report integrated analyses of infections in the Phase [P]2 and P3 OCTAVE programmes. Methods Three cohorts were analysed: Induction [P2/3 induction studies]; Maintenance [P3 maintenance study]; and Overall [all tofacitinib-treated patients in induction, maintenance, or ongoing, open-label, long-term extension studies; as of May 2019]. Proportions and incidence rates [IRs; unique patients with events/100 patient-years] of serious infections [SIs], herpes zoster [HZ] [non-serious and serious], and opportunistic infections [OIs] are reported [censored at time of event]. Results In the Induction Cohort [N = 1220], no patients receiving placebo and eight [0.9%] receiving tofacitinib 10 mg twice daily [BID] developed SIs. Maintenance Cohort [N = 592] SI IRs (95% confidence interval [CI]) were 1.94 [0.23–7.00] for placebo and 1.35 [0.16–4.87] and 0.64 [0.02–3.54] for tofacitinib 5 and 10 mg BID, respectively; HZ IRs were 0.97 [0.02–5.42], 2.05 [0.42–6.00], and 6.64 [3.19–12.22], respectively. In the Overall Cohort [N = 1157; 82.9% predominantly received tofacitinib 10 mg BID], SI, HZ, and non-HZ OI IRs were 1.70 [1.24–2.27], 3.48 [2.79–4.30], and 0.15 [0.04–0.38], respectively. No SIs resulted in death. Conclusions During induction, SIs were more frequent with tofacitinib versus placebo. SIs were generally infrequent in the Maintenance and Overall Cohorts, with rates comparable between treatment groups. Maintenance Cohort HZ IR was numerically higher with tofacitinib 10 mg BID versus 5 mg BID. Overall Cohort HZ IRs remained stable over time. Non-HZ OIs and viral infections were rare.

Abstract Background Tofacitinib is an oral, small-molecule JAK inhibitor for the treatment of UC. Safety and efficacy of tofacitinib were demonstrated in Phase (P)2/3 induction studies, a 52-week, P3 maintenance study, and are being further investigated in an ongoing, open-label, long-term extension (OLE) study.1,2 Here, we provide an updated analysis of age as a risk factor for adverse events (AEs) in the tofacitinib UC clinical programme.3 Methods Proportions of AEs and serious AEs (SAEs), and incidence rates (IRs; unique patients with events per 100 patient-years) for AEs of special interest (AESIs), were determined for two cohorts: the Maintenance Cohort (patients who received placebo or tofacitinib 5 or 10 mg twice daily [BID] in the maintenance study) and the Overall Cohort (all tofacitinib 5 or 10 mg BID-treated patients in the P2/P3/OLE studies; as of May 2019), stratified by age. Multivariable Cox proportional hazards regression analyses were performed to assess whether older age was associated with increased risk of AESIs in the Overall Cohort. Results In the Maintenance Cohort, IRs of AEs and SAEs were generally similar between treatment groups, with no age-related trend in the proportions of AEs in tofacitinib-treated patients. AESIs were infrequent in both treatment groups; however, herpes zoster (HZ; non-serious and serious) IRs were numerically higher in the ≥40 to <50 and ≥50 years age groups for patients treated with tofacitinib 10 mg BID vs. placebo and tofacitinib 10 vs. 5 mg BID. In the Overall Cohort, IR of serious infections was generally similar between age groups, while IRs of opportunistic infections (OIs) and HZ (non-serious and serious), malignancy (excl. non-melanoma skin cancer [NMSC]), NMSC and major adverse cardiovascular events increased with increasing age. The IRs of HZ and NMSC were significantly greater in patients ≥50 years compared with patients <30 years, and in patients ≥30 to <40 years for NMSC. In multivariate analyses, older age was identified as a significant predictor of malignancy (excl. NMSC), NMSC and HZ. Conclusion In the Overall Cohort, there was a trend for an increase in the rates of OIs, HZ, malignancy (excl. NMSC) and NMSC with increasing age. In multivariate analyses, older age was associated with increased risk of malignancy (excl. NMSC), NMSC and HZ. The results of this analysis are generally consistent with previous studies suggesting older age may be associated with an increased risk of certain AESIs in patients with UC, and in some instances in the general population.4 References

INTRODUCTION: Tofacitinib is an oral, small molecule JAK inhibitor for the treatment of ulcerative colitis (UC). Tofacitinib safety in patients (pts) with UC was evaluated in an 8-week induction Phase (P) 2 study (NCT00787202), 1 2 8-week induction P3 studies (OCTAVE Induction 1 & 2; NCT01465763 & NCT01458951), 2 a 52-week maintenance P3 study (NCT01458574), and an ongoing, open-label, long-term extension (OLE) study (OCTAVE Open, NCT01470612). 3 We present updated infections data (Sep 2018) from the tofacitinib UC clinical program. 4,5 METHODS: Pts receiving placebo, tofacitinib 5 or 10 mg twice daily (BID) were analyzed as Induction (P2 & P3, n = 1220), Maintenance (P3, N = 592), and Overall (pts in P2, P3 & OLE receiving tofacitinib 5 or 10 mg BID, N = 1157 [Sep 2018]) Cohorts. Proportions and incidence rates (IRs; pts with events per 100 pt-years [PY] of exposure) were evaluated for infections of special interest (incl. serious infections [SIs], opportunistic infections [OIs; independently adjudicated], and herpes zoster [HZ]). RESULTS: A total of 1157 pts received ≥1 dose of tofacitinib 5 or 10 mg BID (83% predominantly 10 mg BID [avg. daily dose ≥15 mg]), with 2403.6 PY of exposure (median 623 days, up to 6.1 years of treatment). The Table 1 shows infection IRs by Cohort. In the Overall Cohort, nasopharyngitis was the most frequent infection. For SIs, the Overall Cohort “Tofacitinib All” IR (1.75 [95% CI 1.27, 2.36]) was similar to the Maintenance Cohort IRs for tofacitinib 5 and 10 mg BID. No SIs resulted in death. OIs were infrequent (28 pts) and most were HZ (24 pts; IR 0.99 [95% CI 0.63, 1.47]), mostly cutaneous. Not all HZ events were OIs; 83 pts overall had HZ events (IR 3.57 [95% CI 2.84, 4.43]; 6 serious). CONCLUSION: In induction, SIs and OIs occurred with tofacitinib but not with placebo. Overall, SIs were generally infrequent and Overall Cohort IRs did not suggest increased risk with longer tofacitinib treatment vs the Maintenance Cohort. Non-HZ OIs were rare. SI incidence was similar in the UC and rheumatoid arthritis programs (incl. increased HZ risk) 6 and to other UC therapies incl. biologics. 7

BACKGROUND: Patients with inflammatory bowel disease (IBD), particularly ulcerative colitis (UC), have a higher risk of Clostridium difficile infection (CDI) than the general population (1). The incidence of CDI is increasing among patients with IBD, and certain UC treatments may be associated with greater risk (1). We report CDI events in the tofacitinib UC clinical program, and the incidence of CDI among patients receiving other treatments for UC. METHODS: For the tofacitinib UC program, rates of CDI (patients with an adverse event [AE] of CDI, Clostridium difficile colitis, or Clostridium test-positive, plus concomitant oral metronidazole or vancomycin, counted once per cohort) are reported for Induction Cohort (patients from an 8-week Phase [P]2 and two 8-week P3 induction studies; placebo or tofacitinib 10 mg twice daily [BID; NCT00787202; NCT01465763; NCT01458951]); Maintenance Cohort (patients from a 52-week maintenance study; placebo or tofacitinib 5 or 10 mg BID [NCT01458574]); and Overall Cohort (all tofacitinib-treated patients in P2/3 induction and maintenance studies and an ongoing, open-label, long-term extension study [as of December 2016; NCT01470612]). Positive Clostridium difficile test at screening was an exclusion criterion for program entry. Overall Cohort incidence rate (IR) was calculated as number of unique patients with events per 100 patient-years (PY). For contextualization, CDI rates among patients receiving other UC medications were obtained from a retrospective cohort study utilizing data from the Truven MarketScan ® Database, an administrative healthcare claims database in the US. Patients with moderately to severely active UC, with either an inpatient or outpatient diagnosis code of CDI, plus a prescription for oral therapy (including metronidazole, vancomycin, and fidaxomicin) within 14 days of CDI diagnosis (observation period: October 1, 2010–September 30, 2015), were included. Truven cohort IRs were calculated as number of patients with events per 100 PY. RESULTS: In the tofacitinib Induction Cohort, CDI occurred in 3 patients (placebo, 1/282 [0.4%]; tofacitinib 10 mg BID, 2/938 [0.2%]). In the Maintenance Cohort, CDI occurred in 3 patients (placebo, 3/198 [1.5%]; tofacitinib 5 or 10 mg BID, 0/394 [0.0%]). In the Overall Cohort of all tofacitinib-treated patients (1,664 PY of follow-up), CDI occurred in 8/1,157 patients (0.7%), with an IR (95% confidence interval [CI]) of 0.48 (0.21, 0.95). Two cases were reported as serious AEs. All were mild (n = 4) or moderate (n = 4) in severity; 6 continued with study treatment, one temporarily discontinued, one permanently discontinued. All CDI cases resolved with treatment. In the Truven Cohort, 160 CDI events occurred during 4,918 PY of follow-up, with an overall CDI IR (95% CI) of 3.25 (2.77, 3.80); of which 116 were CDI-associated hospitalizations (4,936 PY of follow-up). Among patients receiving azathioprine, 6-mercaptopurine, or tumor necrosis factor inhibitors, CDI IRs were 3.23 (2.18, 4.62), 2.31 (1.26, 3.87), and 3.58 (2.95, 4.29), respectively. CONCLUSION(S): In the tofacitinib UC program, CDI rates among patients receiving tofacitinib were similar to or lower than those observed with placebo. The IR among patients receiving tofacitinib was numerically lower than those observed for immunomodulators and tumor necrosis factor inhibitors in the Truven Cohort.