Real-world experience with tofacitinib in ulcerative colitis: a systematic review and meta-analysis

Background and aims: Tofacitinib is a Janus kinase inhibitor (JAKi) recently approved for the treatment of moderate to severe ulcerative colitis (UC) based on robust efficacy and safety data derived from OCTAVE clinical trials. Evidence on the outcomes of tofacitinib therapy in real-world UC patients is needed, as a number of these patients would be deemed ineligible for clinical trials. We have therefore summarised data derived from observational, real-world evidence (RWE) studies on the effectiveness and safety of tofacitinib in moderate to severe UC patients. Methods: We searched the PubMed, EMBASE, Scopus, Web of Science and Cochrane databases for observational studies on the use of tofacitinib in UC patients, published between 30 May 2018 and 24 January 2021. Pooled induction (8–14 weeks) and maintenance (16–26 weeks) clinical response and remission rates were calculated, as well as the proportion of reported adverse events using random effects models. Results: Nine studies were included, comprising 830 patients, of which 81% were previously treated with anti-tumour necrosis factor (TNF) and 57% with vedolizumab. Induction of clinical response and remission were achieved in 51% (95% confidence interval, 41–60%) and 37% (26–45%) of patients, after a median follow-up of 8 weeks. At the end of a median follow-up of 24 weeks, maintenance of clinical response and remission were met in 40% (31–50%) and 29% (23–36%) of patients, respectively. Thirty-two percent of the patients had at least one adverse event, the most commonly reported being mild infection (13%) and worsening of UC, requiring colectomy (13%). A third of the patients (35%) discontinued tofacitinib, most frequently due to primary non-response (51%). Conclusion: Tofacitinib is a safe and effective therapy in real-world UC patients, as previously reported by clinical trials.

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Real-world experience with tofacitinib in ulcerative colitis - a systematic review and meta-analysis

10.1101/2021.04.27.21256170 ◽

2021 ◽

Author(s):

Laura Alexandra Lucaciu ◽

Nathan Samuel Constantine-Cooke ◽

Nikolas Plevris ◽

Spyros Siakavellas ◽

Lauranne AAP Derikx ◽

...

Keyword(s):

Ulcerative Colitis ◽

Clinical Trials ◽

Clinical Response ◽

Real World ◽

Meta Analysis ◽

Inclusion Criteria ◽

Random Effects Models ◽

Real World Evidence ◽

Previously Treated

Background and aims Evidence on the outcomes of tofacitinib therapy in real world ulcerative colitis (UC) patients is needed, as a number of these patients would not match the inclusion criteria for clinical trials. We have therefore summarised data derived from observational, real-world evidence (RWE) studies on the effectiveness and safety of tofacitinib in moderate to severe ulcerative colitis (UC) patients. Methods We searched the PubMed, EMBASE, Scopus, Web of Science and Cochrane databases for observational studies on the use of tofacitinib in UC patients, published between 30/05/2018 and 24/01/2021. Pooled induction (8-14 weeks) and maintenance (16-26 weeks) clinical response and remission rates were calculated, as well as the proportion of reported adverse events using random effects models. Results Nine studies were included, comprising 830 patients, of which 81% were previously treated with anti-TNF and 57% with vedolizumab. Induction of clinical response and remission were achieved in 51% (95% CI 41-60%) and 37% (26-45%) of patients, after a median follow-up of 8 weeks. At the end of a median follow-up of 24 weeks, maintenance of clinical response and remission were met in 40% (31-50%) and 29% (23-36%) of patients, respectively. Thirty-two percent of the patients had at least one adverse event, the most commonly reported being mild infection (13%) and worsening of UC, requiring colectomy (13%). A third of the patients (35%) discontinued tofacitinib, most frequently due to primary non-response (51%). Conclusions Tofacitinib is a safe and effective therapy in real-world UC patients, as previously reported by clinical trials.

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Tofacitinib in Treatment-Refractory Moderate to Severe Ulcerative Colitis: Real-World Experience from a Retrospective Multicenter Observational Study

Journal of Clinical Medicine ◽

10.3390/jcm9072177 ◽

2020 ◽

Vol 9 (7) ◽

pp. 2177

Author(s):

Peter Hoffmann ◽

Anna-Maria Globig ◽

Anne K. Thomann ◽

Maximilian Grigorian ◽

Johannes Krisam ◽

...

Keyword(s):

Ulcerative Colitis ◽

Adverse Events ◽

Clinical Response ◽

Real World ◽

Clinical Remission ◽

Safety Data ◽

Colon Perforation ◽

Severe Ulcerative Colitis ◽

Emergency Colectomy

(1) Background: Tofacitinib is approved in Europe for the treatment of adults with moderately to severely active ulcerative colitis since 2018. Real-world efficacy and safety data are currently scarce. (2) Methods: We performed a retrospective multicenter study at three German tertiary outpatient clinics for inflammatory bowel diseases and included all patients who started tofacitinib therapy between August 2018 and March 2020. The primary endpoint was a combined endpoint of steroid-free clinical remission, steroid-free clinical response, or clinical response at week 8. Secondary endpoints were biochemical response at week 8, as well as steroid-free clinical remission, steroid-free clinical response or clinical response at week 24, respectively, adverse events by week 24, and need for colectomy by the end of follow-up. (3) Results: Thirty-eight patients with moderate-to-severe ulcerative colitis were included. Eleven patients (28.9%) achieved steroid-free clinical remission at week 8. Fifty-three percent of the patients were primary non-responders at week 8. Three severe adverse events (pneumonia, hospitalization for aggravation of ulcerative colitis, emergency colectomy due to colon perforation), and 12 adverse events were documented by week 8 of therapy. By the end of follow-up, seven patients (18.4%) had undergone colectomy.

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P422 Tofacitinib induces clinical and endoscopic remission in biologic refractory ulcerative colitis patients: a real-world Belgian cohort study

Journal of Crohn s and Colitis ◽

10.1093/ecco-jcc/jjz203.551 ◽

2020 ◽

Vol 14 (Supplement_1) ◽

pp. S384-S386 ◽

Cited By ~ 1

Author(s):

A Cremer ◽

T Lobaton ◽

S Vieujan ◽

P Bossuyt ◽

J F Rahier ◽

...

Keyword(s):

Ulcerative Colitis ◽

Clinical Response ◽

Rectal Bleeding ◽

Real World ◽

Stool Frequency ◽

Janus Kinase ◽

Short Term ◽

Mayo Score ◽

Endoscopic Remission

Abstract Background Tofacitinib, an oral small molecule Janus kinase inhibitor, has been approved in 2018 for the treatment of moderate to severe ulcerative colitis (UC) in Europe. We report on real-world short-term efficacy and safety data from a multicenter Belgium refractory cohort of UC patients with prior exposure to both anti-TNFα and vedolizumab. Methods This is an observational, national, retrospective multicentre study including all UC active patients started on tofacitinib (10 mg BID) from 25 centres in Belgium between November 2018 and August 2019. Prospectively collected data were retrospectively analysed according to intention to treat. Primary endpoints were clinical and endoscopic response and remission rates at weeks 8 and 16. Clinical response and remission were defined as a reduction in the Modified Clinical Mayo score (rectal bleeding, stool frequency) of ≥2 and ≤1, respectively. Endoscopic response and remission were defined as a reduction in Endoscopic Mayo score of ≥1 and ≤1, respectively. Complete endoscopic remission was defined as an Endoscopic Mayo score of 0. Descriptive statistics and Wilcoxon signed-rank test were calculated using Medcal 19.1. Results Demographic and baseline data of the 70 included patients are presented in Table 1. Of note is that nearly all patients were refractory to at least one anti-TNF and vedolizumab. Median follow-up was 16 weeks (IQR 13–26). Fifty-four per cent (38/70) of patients required prolonged induction at 10mg BID. Clinical evaluation was available in all patients at week 8 and 49 patients at week 16, while endoscopic data were available in 52 patients and 42 at weeks 8 and 16, respectively. Clinical response and remission, and endoscopic response and remission at weeks 8 and 16 are presented in Figures 1 and 2. Fifty per cent (21/42) of the patients under steroids at baseline could have stopped steroids at 16 weeks. Median baseline Modified Mayo score (rectal bleeding, stool frequency and endoscopy) decreased from 7 (IQR 5–8) to 4 (IQR 2–7) after 8 weeks (n = 49) (p < 0.0001), and down to 2 (IQR 1–5) at week 16 (n = 40) (p < 0.0001). Median CRP significantly decreased from baseline (5.3 mg/l, IQR [1.9–16.8]) to 1 mg/l at week 8 (IQR 0.5–6.2) (n = 49) (p = 0.003). Tofacitinib was well tolerated with only 1 reported case of single dermatome herpes zoster and no case of venous thromboembolism. Conclusion Tofacitinib very effectively induced short-term clinical and endoscopic response and remission even in a refractory cohort of patients with UC in a real-world clinical setting. During this short-term follow-up, tofacitinib was well tolerated with respect to adverse events.

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P663 Efficacy of tofacitinib in patients with ulcerative colitis after previous ineffective biological therapies

Journal of Crohn s and Colitis ◽

10.1093/ecco-jcc/jjz203.791 ◽

2020 ◽

Vol 14 (Supplement_1) ◽

pp. S545-S546

Author(s):

M Rutka ◽

K Farkas ◽

D Pigniczki ◽

K Szántó ◽

B Anita ◽

...

Keyword(s):

Ulcerative Colitis ◽

Clinical Response ◽

Induction Therapy ◽

Dose Escalation ◽

Real Life ◽

Janus Kinase ◽

Inadequate Response ◽

Mayo Score ◽

Number Of Patients

Abstract Background Tofacitinib (TFC) is an oral, small-molecule Janus kinase inhibitor, which was recently approved for moderate to severe ulcerative colitis (UC). The aim of the current real-life study was to determine efficacy of TFC induction therapy regarding the clinical response and remission in patients with active UC. We evaluated short-term efficacy data in a Hungarian cohort with prior exposure to other biological agents such as anti-TNF drugs and vedolizumab. Methods In this single-centre retrospective study, patients with TFC introduction were included. Since January 2019, a total of 16 patients received an oral TFC induction therapy in a dose of 10 mg twice daily for 8 weeks. Endoscopic activity was evaluated by endoscopic Mayo (eMayo) score before the introduction of TFC and in case of an inadequate therapeutic response to the 5-mg-therapy to confirm therapeutic decision-making. Based on the evaluation of clinical symptoms and laboratory parameters, we either kept the dosage or reduced the dose to 5 mg according to local regulations. We also collected data from the 16. and 24. weeks of the therapy. Primary endpoints were a clinical response (as a reduction in partial Mayo Score [pMayo] by minimum 3 points) or remission (as a Mayo score of the maximum of 2 points and without blood in stool) at week 8. Results Sixteen patients had received the induction therapy (mean age: 36 years, 7 males and 9 females) in our centre. After 8 weeks, 12 (75%) patients responded to the TFC induction therapy and 6 (37.5%) of them were in remission. Four patients were primary non-responders (25%). Corticosteroid therapy (18 ± 7 mg) was required during the induction in 4 responder cases, which could be stepped down by week 8. As a continuous maintenance therapy, 4 patients have already reached the 16th week and 8 have completed the 24th week. By the end of the follow-up, 12 patients responded and 10 was in remission. During the observation period, 3 patients had to remain on 10 mg TFC dose, 6 patients required dose escalation from 5 mg to 10 mg and 5 mg was sufficient in case of only 3 patients after the introduction. Endoscopic activity showed a moderate decrease from 2.5 ± 0.5 eMayo score to 2 ± 1 (n = 7) until week 16. In respect the responder patients, CRP levels decreased from the mean of 7.23 to 5.02. No serious side-effects were observed during the follow-up. Conclusion After the 8-week TFC induction therapy, the response rate was high and only every fourth patients were non-responder. A low number of patients had adequate reactions to the 5 mg-therapy after the introduction, but TFC is effective with dose-escalation in respect of clinical response and remission in patients with UC, who have had an inadequate response to previous biological therapy.

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P325 Real-World Effectiveness And Safety Of Ustekinumab In Patients With Ulcerative Colitis: A Multi-Centre Study

Journal of Crohn s and Colitis ◽

10.1093/ecco-jcc/jjab076.449 ◽

2021 ◽

Vol 15 (Supplement_1) ◽

pp. S349-S350

Author(s):

D Parakkal ◽

A Johnson ◽

M Fenster ◽

G Ramos ◽

M Zulqarnain ◽

...

Keyword(s):

Ulcerative Colitis ◽

Clinical Response ◽

Real World ◽

Drug Level ◽

Previous Exposure ◽

Multi Centre Study ◽

Mayo Score ◽

Number Of Patients ◽

Endoscopic Remission

Abstract Background Pivotal trials have shown that ustekinumab (UST) is effective in ulcerative colitis (UC). However, the population included in these trials do not always represent the cohort of patients treated in the “real world”. In this study, we aimed to describe the effectiveness and safety of UST in a clinical cohort of patients with UC Methods We performed a multi-center cohort study and included patients with active UC starting UST. Variables collected included demographics, previous and current UC medications, disease activity (measured using partial and endoscopic Mayo score [PMS and EMS]) at 8 weeks, 6 months and end of follow-up. We also abstracted UST drug level and anti-UST antibodies (AUA), albumin and C-reactive protein levels. Primary outcomes were clinical response at week 8 defined as a reduction of 3 points in the PMS or PMS<2. Secondary outcomes were clinical remission defined as a PMS <2 and endoscopic remission defined as a MES ≤1, and the development of an adverse event (AE) attributed to UST. Results Ninety-five patients were included with a median age of 42 years (IQR:32-57) and 53 (56%) were female. Median follow-up was 5 months (IQR:2.2-7.4). Only 4 (4.3%) were naïve to biologics or tofacitinib and 62 (66%) had previous exposure to at least 2 other biologics. No variables were found to be associated with response at week 8 (Figure 2). Those patients who responded at week 8 had higher median albumin levels vs those who did not (median of 4.4 [IQR: 4.1-4.6] vs 4.1 g/dL [IQR:3.8-4.3]; p=0.02). There were no differences in baseline CRP levels (1mg/dL [IQR:0.6-2.8] vs 0.6 mg/dL [0.3-1.5]; p=0.06). Among the 33 patients who had follow-up endoscopic assessment, 7 (21.2%) had achieved endoscopic remission and 4 (12%) achieved histologic remission. Median UST level was 4.1 mcg/ml (IQR:2.5-5.1) and no patients had detectable AUA. Five patients underwent colectomy (5.3%). Only 6 patients (6.6%) presented with an AE (all minor that included, rash, headaches, arthralgias and infection). Conclusion In a population enriched with refractory UC, UST was well tolerated and induce response and remission in a significant number of patients. The rate of response was lower in obese patients and those with extensive colitis but was not associated with previous exposure to biologics and/or tofacitinib. Larger studies with a longer follow-up are warranted. Figure 1: Rates of clinical response and remission in patients with UC receiving ustekinumab Figure 2: Association between several baseline characteristics and response to ustekinumab in UC

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A232 EFFICACY OF TOFACITINIB FOR THE TREATMENT OF MODERATE-TO-SEVERE ULCERATIVE COLITIS: REAL-WORLD DATA

Journal of the Canadian Association of Gastroenterology ◽

10.1093/jcag/gwz047.231 ◽

2020 ◽

Vol 3 (Supplement_1) ◽

pp. 108-109

Author(s):

Y Xiao ◽

P L Lakatos ◽

R Bourdages ◽

A Bitton ◽

W Afif ◽

...

Keyword(s):

Ulcerative Colitis ◽

Clinical Response ◽

Clinical Remission ◽

Preliminary Analysis ◽

Kinase Inhibitor ◽

Significant Proportion ◽

Real Life ◽

Janus Kinase ◽

Severe Ulcerative Colitis ◽

Mayo Score

Abstract Background A significant proportion of patients with moderate to severe ulcerative colitis (UC) do not respond to therapy, which includes thiopurines, glucocorticoids, and antagonists to tumour necrosis factor-α and integrin. Tofacitinib, a Janus Kinase inhibitor, has emerged as an efficacious and safe treatment for moderate to severe ulcerative colitis. However, it is not known if this efficacy translates into real-life effectiveness in a regular clinical practice. Aims We aimed to assess the rate of clinical response and clinical remission at 3 and 6 months after tofacitinib initiation. Secondary endpoints included rate of biomarker normalization, corticosteroids-free clinical remission and severe infections. Methods We conducted a multi-center retrospective observational study of adult patients with active UC started on tofacitinib from January 1, 2015 to October 1, 2019 at the McGill University Health Center and Hotel-Dieu de Lévis. A positive clinical response was defined as a decrease of ≥3 in the partial Mayo score. Clinical remission was defined as partial Mayo score of ≤2. Biomarker normalization was defined as fecal calprotectin ≤250ug/g. Severe infection was defined as an infection requiring hospitalization. Results During the study period, 40 patients with UC were started on tofacitinib. Amongst the patients, 85% (n=34) had failed ≥1 biologic and 50% (n=20) had failed ≥3 biologics. At the time of this preliminary analysis, 38 patients had undergone 3 months of treatment and 30 patients had undergone 6 months of treatment. At 3 months, a clinical response was seen in 89.5% of patients (n=34) and clinical remission occurred in 63.2% (n=24). At 6 months, clinical response occurred in 73.3% of patients (n=22) and clinical remission was sustained in 53.33% (n=16). Biochemical normalization occurred in 29.0% (n=11) and 30.0% (n=9) at 3 and 6 months, respectively. Additionally, 63.2% (n=24) and 43.3% of patients (n=13) achieved steroid-free clinical remission at 3 and 6 months, respectively. In the interim, one patient developed a serious infection requiring discontinuation of drug. Conclusions Our preliminary analysis demonstrates that in a real-life setting, tofacitinib is an effective treatment for inducing clinical remission in refractory UC patients. Further data will be complied to better assess the efficacy over a longer follow up. Funding Agencies None

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Tofacitinib, the First Oral Janus Kinase Inhibitor Approved for Adult Ulcerative Colitis

Journal of Pharmacy Practice ◽

10.1177/0897190020953019 ◽

2020 ◽

pp. 089719002095301

Author(s):

Brittany N. Palasik ◽

Hongmei Wang

Keyword(s):

Ulcerative Colitis ◽

Kinase Inhibitor ◽

Safety Data ◽

Janus Kinase ◽

Cytokine Signaling ◽

Efficacy And Safety ◽

Janus Kinase Inhibitor ◽

Multiple Factors ◽

Pharmacokinetic Properties ◽

Inflammatory Bowel

Ulcerative colitis (UC) is a type of inflammatory bowel disease (IBD) characterized by chronic gastrointestinal inflammation. In most patients, the disease cycles through periods of remission and exacerbations. The complex etiology involves multiple factors including environmental, genetic, and immune causal elements. Janus Kinase (JAK) family is an essential component of a cytokine-signaling cascade partially responsible for the pathogenesis of UC. Treating UC presents difficulties despite various therapeutic options. Medications that block the JAK-signaling pathway can interfere with the inflammatory pathway of UC and possibly reduce symptoms and frequency of exacerbations. Tofacitinib is an oral pan-JAK inhibitor, primarily of JAK1 and JAK3, that was recently approved by the Food and Drug Administration (FDA) for the chronic treatment of UC in 2018. The following review describes the newly approved Janus kinase inhibitor, tofacitinib, including its pharmacokinetic properties, efficacy and safety data, and potential place in therapy.

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P512 Efficacy of tofacitinib for the treatment of moderate-to-severe ulcerative colitis: real-world data

Journal of Crohn s and Colitis ◽

10.1093/ecco-jcc/jjz203.641 ◽

2020 ◽

Vol 14 (Supplement_1) ◽

pp. S444-S445

Author(s):

Y XIAO ◽

P L Lakatos ◽

R Bourdages ◽

A Bitton ◽

W Afif ◽

...

Keyword(s):

Ulcerative Colitis ◽

Clinical Response ◽

Clinical Remission ◽

Preliminary Analysis ◽

Kinase Inhibitor ◽

Significant Proportion ◽

Real Life ◽

Janus Kinase ◽

Severe Ulcerative Colitis ◽

Mayo Score

Abstract Background A significant proportion of patients do not respond to therapy for moderate to severe ulcerative colitis (UC), including thiopurines, glucocorticoids, and antagonists to tumour necrosis factor-a and integrin. Tofacitinib, a Janus Kinase inhibitor, has emerged as an efficacious and safe treatment for moderate to severe ulcerative colitis. However, data on its real-life efficacy remains sparse. Methods We aimed to assess the rate of clinical response and clinical remission at 3 and 6 months after tofacitinib initiation. Secondary endpoints included the rate of biomarker normalisation, corticosteroids-free clinical remission and severe infections. We conducted a multi-centre retrospective observational study of adult patients with active UC started on tofacitinib from January 1, 2015 to October 1, 2019 at the McGill University Health Center and Hotel-Dieu de Lévis. A positive clinical response was defined as a decrease of ≥3 in the partial Mayo score. Clinical remission was defined as partial Mayo score of ≤2. Biomarker normalisation was defined as faecal calprotectin ≤250 μg/g. Severe infection was defined as an infection requiring hospitalisation. Results During the study period, 40 patients with UC were started on tofacitinib at 10 mg/kg twice a day. Amongst the patients, 85% (n = 34) had failed ≥1 biologic and 50% (n = 20) had failed ≥3 biologics. At the time of this preliminary analysis, 38 patients had undergone 3 months of treatment; 30 patients had undergone 6 months of treatment. At 3 months, a clinical response was seen in 89.5% of patients (n = 34) and clinical remission occurred in 63.2%(n = 24). At 6 months, clinical response occurred in 73.3% of patients (n = 22) and clinical remission was sustained in 53.33% (n = 16). Biochemical normalisation occurred in 29.0% (n = 11) and 30.0% (n = 9) at 3 and 6 months respectively. Additionally, 63.2% (n = 24) of patients and 43.3% (n = 13) of patients achieved steroid-free clinical remission at 3 and 6 months respectively. In the interim, one patient developed a serious infection requiring discontinuation of the drug. Conclusion Our preliminary analysis demonstrates that in a real-life setting, tofacitinib is an effective treatment for inducing clinical remission in refractory UC patients. Further data will be complied to better assess the efficacy over a longer follow-up.

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Real-World Effectiveness and Safety of Tofacitinib in Patients With Ulcerative Colitis: Systematic Review With Meta-Analysis

Inflammatory Bowel Diseases ◽

10.1093/ibd/izab011 ◽

2021 ◽

Author(s):

Carlos Taxonera ◽

David Olivares ◽

Cristina Alba

Keyword(s):

Systematic Review ◽

Ulcerative Colitis ◽

Clinical Trials ◽

Real World ◽

Meta Analysis ◽

Mucosal Healing ◽

Incidence Rates ◽

Serious Adverse Events ◽

The Real ◽

Rate Of Response

Abstract Background Knowledge of the real-world effectiveness and safety of tofacitinib for ulcerative colitis (UC) is relevant to confirm the benefit observed in clinical trials. Methods This systematic review and meta-analysis evaluated the real-world effectiveness of tofacitinib for moderate to severely active UC. The primary outcome was clinical remission evaluated at week 8, weeks 12 to 16, and month 6. Secondary outcomes were response, corticosteroid-free remission, mucosal healing, colectomy, and safety. Results Seventeen studies with a total of 1162 patients with UC were included. Remission (11 studies) was achieved in 34.7% of patients at week 8 (95% confidence interval [CI], 24.4%-45.1%), 47% at weeks 12 to 16 (95% CI, 40.3%-53.6%), and 38.3% at month 6 (95% CI, 29.2%-47.5%) at month 6 duplicated. Response was achieved in 62.1%, 64.2%, 50.8%, and 41.8% of patients at week 8, weeks 12 to 16, month 6, and month 12, respectively. Corticosteroid-free remission (5 studies) was achieved in 38.4%, 44.3%, 33.6%, and 31% of patients at week 8, weeks 12 to 16, month 6, and month 12, respectively. Mucosal healing was achieved in 48.3% and 45.3% of patients at week 8 and weeks 12 to 16, respectively. Patients who were biologic-naïve (11.6%) had a significantly higher rate of response at week 8 (1.38; 95% CI, 1.03-1.84). The incidence rates of serious adverse events and herpes zoster was 8.9 and 6.9 per 100 patient-years, respectively. Conclusions This meta-analysis of real-world studies confirms the effectiveness of tofacitinib in a highly refractory population of patients with moderate to severely active UC. Tofacitinib showed an acceptable safety profile. These findings were consistent with clinical trials and further support the use of tofacitinib in UC.

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Real-world Effectiveness of Tofacitinib for Moderate to Severe Ulcerative Colitis: A Multicentre UK Experience

Journal of Crohn s and Colitis ◽

10.1093/ecco-jcc/jjaa075 ◽

2020 ◽

Vol 14 (10) ◽

pp. 1385-1393 ◽

Cited By ~ 5

Author(s):

Sailish Honap ◽

Desmond Chee ◽

Thomas P Chapman ◽

Mehul Patel ◽

Alexandra J Kent ◽

...

Keyword(s):

Ulcerative Colitis ◽

Real World ◽

Kinase Inhibitor ◽

Activity Index ◽

Site Response ◽

Janus Kinase ◽

Severe Ulcerative Colitis ◽

Mayo Score ◽

Venous Thromboembolic Events ◽

Venous Thromboembolic

Abstract Background Tofacitinib is a partially selective Janus kinase inhibitor approved for the treatment of refractory moderate to severe ulcerative colitis [UC]. We sought to define the effectiveness and adverse effects of tofacitinib in a real-world cohort. Methods We conducted a retrospective observational cohort study of 134 patients with UC [64% male; median age 37 years [range 16–81]; 83% of patients had previously received at least one biologic] treated with tofacitinib from October 2018 to October 2019 in four UK centres. Disease activity was assessed using the Simple Clinical Colitis Activity Index [SCCAI] or partial Mayo score [PMS], depending on study site. Response and remission were defined as a reduction in SCCAI or PMS of ≥3and SCCAI ≤2 or a PMS ≤1, respectively. Results Overall, 74% (88/119; 95 confidence interval [CI] 65–81%] patients responded to tofacitinib at Week 8 and steroid-free remission was observed in 44% [47/108; 95% CI 3453%] patients at Week 26. Primary non-response was independently associated with younger age [p = 0.014] and higher C-reactive protein [CRP] levels at baseline [p = 0.004]. Only 23% [3/13] of patients who continued tofacitinib in the setting of primary non-response were in steroid-free remission at Week 26. Prior biologic exposure did not influence response or remission rates. Dose escalation, however, recaptured response in approximately half of patients who had lost response. Dyslipidaemia was observed in 20% [27/134; 95% CI 1428%] of patients, but adverse events necessitating drug withdrawal were uncommon and no venous thromboembolic events occurred. Conclusions In this multicentre real-world cohort, tofacitinib was well tolerated and clinically effective in a treatment-refractory UC population.

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