1
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Wong ECL, Dulai PS, Marshall JK, Jairath V, Reinisch W, Narula N. Predictors of Clinical Remission to Placebo in Clinical Trials of Crohn's Disease. Inflamm Bowel Dis 2023; 29:1390-1398. [PMID: 36426810 DOI: 10.1093/ibd/izac231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND In placebo-controlled clinical trials for Crohn's disease (CD), some placebo-treated patients demonstrate improvement. However, it is unclear what factors contribute to placebo response and remission. METHODS This was a post hoc analysis of 3 placebo-controlled clinical trial programs (GEMINI-2, UNITI-1/2, and CLASSIC-1) of moderate-severe CD evaluating the efficacy of vedolizumab, ustekinumab, and adalimumab. Baseline predictors of clinical remission at the end of induction (week 4/6), defined as Crohn's Disease Activity Index <150 were evaluated among placebo-treated patients. Clinical response (decrease in Crohn's Disease Activity Index ≥100 points from baseline) at the end of induction was also evaluated. Univariate analyses were performed and predictors with P < .10 were included in multivariable analyses. RESULTS A total of 683 patients (148 from GEMINI-2, 470 from UNITI-1/2, and 65 from CLASSIC-1) treated with placebo were included. Of the predictors evaluated, C-reactive protein <5 mg/L (odds ratio [OR], 1.66; 95% confidence interval [CI], 1.04-2.67; P = .035), albumin >40 g/L (OR, 1.57; 95% CI, 1.05-2.93; P = .023), and disease duration <5 years (OR, 1.70; 95% CI, 1.05-2.75; P = .032) were included in the multivariable model for clinical remission. Disease duration <5 years was the only variable that retained significance on multivariable analysis (adjusted OR, 1.67; 95% CI, 1.02-2.73; P = .040). For clinical response, isolated ileal disease and disease duration <1 year were included in the multivariable model, of which only the latter retained significance (adjusted OR, 1.84; 95% CI, 1.04-3.24; P = .035). CONCLUSIONS Strategies that reduce placebo response rates in clinical trials of CD should be considered, including stratification or exclusion of subjects by disease duration and mild disease severity as measured by objective biomarkers.
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Affiliation(s)
- Emily C L Wong
- Division of Gastroenterology, Department of Medicine, McMaster University, Hamilton, ON, Canada
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
| | - Parambir S Dulai
- Division of Gastroenterology, Northwestern University, Chicago, IL, USA
| | - John K Marshall
- Division of Gastroenterology, Department of Medicine, McMaster University, Hamilton, ON, Canada
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
| | - Vipul Jairath
- Division of Gastroenterology, Department of Medicine, Western University, London, ON, Canada
| | - Walter Reinisch
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Neeraj Narula
- Division of Gastroenterology, Department of Medicine, McMaster University, Hamilton, ON, Canada
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
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2
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Lee MJ. 'Optimum' strategy and outcome in Crohn's anal fistula. Colorectal Dis 2023; 25:495-496. [PMID: 36350257 DOI: 10.1111/codi.16389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 09/26/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Matthew J Lee
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
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3
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Sharma T, Ma C, Sedano R, Hanzel J, McDonald C, Hogan M, Kochhar GS, Narula N, Peyrin-Biroulet L, Danese S, MacDonald JK, Jairath V. Placebo response rates in randomized controlled trials for perianal Crohn's disease: A systematic review and meta-analysis. J Crohns Colitis 2022; 17:644-658. [PMID: 36271904 DOI: 10.1093/ecco-jcc/jjac160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Perianal fistulizing disease is a common complication of Crohn's disease (CD), for which new therapies are urgently needed. To assist design of clinical trials for novel therapeutics, we conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) to quantify placebo rates and identify factors influencing them in perianal CD. METHODS We searched MEDLINE, EMBASE and CENTRAL from inception to June 2021. Eligible studies were placebo-controlled trials of pharmacological interventions for perianal CD (pCD). Placebo fistula response and remission rates for induction and maintenance trials were extracted and pooled using a random-effects model. Mixed-effects meta-regression was used to evaluate the impact of patient and study-level characteristics on point estimates. RESULTS In 17 RCTs (13 induction, 5 maintenance) the pooled placebo fistula response and remission rate for induction trials was 25% (95% CI 17-36%) and 17% (95% CI 11-25%), respectively. For maintenance trials, the pooled placebo fistula response and remission rate was 23% (95% CI 17-32%) and 19% (95% CI 14-25%), respectively. Trials enrolling patients with less disease activity and a higher proportion with ileal predominant disease were associated with significantly higher placebo response rates. Trials originating in Europe (compared to North America), therapies requiring perianal injection and a longer timepoint to measure remission were associated with higher placebo remission rates. CONCLUSIONS Placebo response and remission rates in pCD trials are influenced by patient and disease-related factors, as well as the type of intervention being studied. These contemporary rates will inform trial design for novel therapeutics.
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Affiliation(s)
- Tanmay Sharma
- Schulich School of Medicine & Dentistry, Western University (Windsor Campus), Windsor, Ontario, Canada
| | - Christopher Ma
- Alimentiv, Inc., London, Ontario, Canada.,Division of Gastroenterology & Hepatology, Departments of Medicine and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Rocio Sedano
- Alimentiv, Inc., London, Ontario, Canada.,Department of Medicine, Division of Gastroenterology, Western University, London, Ontario, Canada
| | - Jurij Hanzel
- Department of Gastroenterology, UMC Ljubljana, University of Ljubljana, Ljubljana, Slovenia
| | - Cassandra McDonald
- Department of Medicine, London Heath Sciences Centre, London, Ontario, Canada
| | | | - Gursimran S Kochhar
- Gastroenterology and Hepatology, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
| | - Neeraj Narula
- Division of Gastroenterology, McMaster University, Hamilton, Ontario, Canada
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology and Inserm NGERE U1256, Nancy University Hospital, University of Lorraine, 54500 Vandoeuvre-lès-Nancy, France
| | - Silvio Danese
- Gastroenterology and Endoscopy, IRCCS Ospedale San Raffaele and University Vita-Salute San Raffaele, Milano, Italy
| | | | - Vipul Jairath
- Alimentiv, Inc., London, Ontario, Canada.,Department of Medicine, Division of Gastroenterology, Western University, London, Ontario, Canada.,Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada
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4
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The Optimal Management of Fistulizing Crohn’s Disease: Evidence beyond Randomized Clinical Trials. J Clin Med 2022; 11:jcm11113045. [PMID: 35683433 PMCID: PMC9181669 DOI: 10.3390/jcm11113045] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/21/2022] [Accepted: 05/25/2022] [Indexed: 02/04/2023] Open
Abstract
Fistulizing Crohn’s disease (FCD) remains the most challenging aspect of treating patients with CD. FCD can occur in up to 30% of patients with CD and may lead to significant disability and impaired quality of life. The optimal treatment strategies for FCD require a multidisciplinary approach, including a combined medical and surgical approach. The therapeutic options for FCD are limited due to sparse evidence from randomized clinical trials (RCTs). The current recommendations are mainly based on post hoc analysis from RCTs, real-world clinical studies and expert opinion. There is variation in everyday clinical practice amongst gastroenterologists and surgeons. The evidence for anti-tumor necrosis factor therapy is the strongest in the treatment of FCD. However, long-term fistula healing can be achieved in only 30–50% of patients. In recent years, emerging data in the advent of therapeutic modalities, including the use of new biologic agents, therapeutic drug monitoring, novel surgical methods and mesenchymal stem cell therapy, have been shown to improve outcomes in achieving fistula healing. This review summarizes the existing literature on current and emerging therapies to provide guidance beyond RCTs in managing FCD.
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5
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Schwartz DA, Peyrin-Biroulet L, Lasch K, Adsul S, Danese S. Efficacy and Safety of 2 Vedolizumab Intravenous Regimens for Perianal Fistulizing Crohn's Disease: ENTERPRISE Study. Clin Gastroenterol Hepatol 2022; 20:1059-1067.e9. [PMID: 34597729 DOI: 10.1016/j.cgh.2021.09.028] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 09/17/2021] [Accepted: 09/22/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Fistulizing Crohn's disease (CD) is challenging to treat. We report results from ENTERPRISE, a randomized, double-blind, phase 4 trial evaluating 2 vedolizumab intravenous dosing regimens in patients with fistulizing CD. METHODS Patients with moderately to severely active CD and 1-3 active perianal fistulae (identified on magnetic resonance imaging [MRI]) received vedolizumab 300 mg intravenously at weeks 0, 2, 6, 14, and 22 (VDZ) or the same regimen plus an additional vedolizumab dose at week 10 (VDZ + wk10). Reduction from baseline in draining perianal fistulae and disease activity, MRI assessments, health-related quality of life (HRQoL), and safety were evaluated. Enrollment was stopped prematurely because of recruitment challenges; analyses are descriptive. RESULTS Of 32 patients with ≥1 active fistulae at baseline per MRI and postbaseline fistulae healing assessment, 28 (14 per dosing regimen) had ≥1 draining fistulae at baseline (assessed by gentle finger compression during clinical exam). Rapid and sustained fistula closure was observed; 53.6% (VDZ, 64.3%; VDZ + wk10, 42.9%) and 42.9% (VDZ, 50.0%; VDZ + wk10, 35.7%) of patients achieved ≥50% decrease in draining fistulae and 100% fistulae closure, respectively, at week 30. Mean (standard deviation) CD and Perianal Disease Activity Index scores decreased by 51.1 (78.3) and 4.1 (3.3), respectively, at week 30. HRQoL improved throughout the study. No new safety signals were observed. CONCLUSIONS Sustained improvements in fistulizing CD were seen with both vedolizumab regimens. An additional dose at week 10 does not appear to alter treatment outcomes. Safety profile was consistent with other vedolizumab studies. CLINICALTRIALS gov no: NCT02630966; EudraCT: 2015-000852-12.
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Affiliation(s)
- David A Schwartz
- Inflammatory Bowel Disease Center, Vanderbilt University Medical Center, Nashville, Tennessee.
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology, Nancy University Hospital, Nancy, France; Inserm U1256 NGERE, Lorraine University, Nancy, France
| | - Karen Lasch
- Takeda Pharmaceuticals USA Inc, Lexington, Massachusetts
| | - Shashi Adsul
- Takeda Pharmaceuticals International AG, Zurich, Switzerland
| | - Silvio Danese
- IRCCS Ospedale San Raffaele and University Vita-Salute San Raffaele, Milano, Italy
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6
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Nazari H, Naei VY, Tabasi AH, Badripour A, Akbari Asbagh R, Keramati MR, Sharifi A, Behboudi B, Kazemeini A, Abbasi M, Keshvari A, Ahmadi Tafti SM. Advanced Regenerative Medicine Strategies for Treatment of Perianal Fistula in Crohn's Disease. Inflamm Bowel Dis 2022; 28:133-142. [PMID: 34291798 DOI: 10.1093/ibd/izab151] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Indexed: 12/15/2022]
Abstract
Regenerative medicine is an emerging therapeutic method that aims to reconstruct tissues and organs. This advanced therapeutic approach has demonstrated great potential in addressing the limitations of medical and surgical procedures for treating perineal fistula in patients with Crohn's disease. Recent developments in stem cell technology have led to a massive good manufacturing practices (GMPs) production of various stem cells, including mesenchymal and embryonic cells, along with induction of pluripotent stem cells to repair damaged tissues in the fistula. The recent advances in separation and purification of exosomes, as biologic nanovesicles carrying anti-inflammatory and regenerative agents, have made them powerful tools to treat this inflammatory disease. Further, tremendous advances in nanotechnology, biomaterials, and scaffold fabrication methods enable tissue engineering methods to synthesize tissue-like structures to assist surgical techniques. This review focuses on advanced regenerative-based methods including stem cell therapy, exosome therapy, and tissue engineering used in the treatment of perianal fistula. Relevant in vitro and in vivo studies and the latest innovations in implementation of regenerative medicine for this disease are also separately reviewed. Additionally, current challenges regarding implementation of g stem cells, exosomes, and tissue engineering methods for bridging the gaps between laboratory findings and clinic application will be discussed.
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Affiliation(s)
- Hojjatollah Nazari
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.,Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Yaghoubi Naei
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Asieh Heirani Tabasi
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.,Department of Cell Therapy and Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Abolfazl Badripour
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Akbari Asbagh
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Keramati
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirsina Sharifi
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Behnam Behboudi
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Kazemeini
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Amir Keshvari
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohsen Ahmadi Tafti
- Division of Colorectal Surgery, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.,Colorectal Surgery Research Center, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
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7
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Buscail E, Le Cosquer G, Gross F, Lebrin M, Bugarel L, Deraison C, Vergnolle N, Bournet B, Gilletta C, Buscail L. Adipose-Derived Stem Cells in the Treatment of Perianal Fistulas in Crohn's Disease: Rationale, Clinical Results and Perspectives. Int J Mol Sci 2021; 22:ijms22189967. [PMID: 34576129 PMCID: PMC8470328 DOI: 10.3390/ijms22189967] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/07/2021] [Accepted: 09/12/2021] [Indexed: 12/16/2022] Open
Abstract
Between 20 to 25% of Crohn’s disease (CD) patients suffer from perianal fistulas, a marker of disease severity. Seton drainage combined with anti-TNFα can result in closure of the fistula in 70 to 75% of patients. For the remaining 25% of patients there is room for in situ injection of autologous or allogenic mesenchymal stem cells such as adipose-derived stem/stromal cells (ADSCs). ADSCs exert their effects on tissues and effector cells through paracrine phenomena, including the secretome and extracellular vesicles. They display anti-inflammatory, anti-apoptotic, pro-angiogenic, proliferative, and immunomodulatory properties, and a homing within the damaged tissue. They also have immuno-evasive properties allowing a clinical allogeneic approach. Numerous clinical trials have been conducted that demonstrate a complete cure rate of anoperineal fistulas in CD ranging from 46 to 90% of cases after in situ injection of autologous or allogenic ADSCs. A pivotal phase III-controlled trial using allogenic ADSCs (Alofisel®) demonstrated that prolonged clinical and radiological remission can be obtained in nearly 60% of cases with a good safety profile. Future studies should be conducted for a better knowledge of the local effect of ADSCs as well as for a standardization in terms of the number of injections and associated procedures.
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Affiliation(s)
- Etienne Buscail
- Department of Surgery, CHU Toulouse-Rangueil and Toulouse University, UPS, 31059 Toulouse, France;
- IRSD, University of Toulouse, INSERM 1022, INRAe, ENVT, UPS, 31300 Toulouse, France; (C.D.); (N.V.)
| | - Guillaume Le Cosquer
- Department of Gastroenterology and Pancreatology, CHU Toulouse-Rangueil and Toulouse University, UPS, 31059 Toulouse, France; (G.L.C.); (B.B.); (C.G.)
| | - Fabian Gross
- Centre for Clinical Investigation in Biotherapy, CHU Toulouse-Rangueil and INSERM U1436, 31059 Toulouse, France; (F.G.); (M.L.); (L.B.)
| | - Marine Lebrin
- Centre for Clinical Investigation in Biotherapy, CHU Toulouse-Rangueil and INSERM U1436, 31059 Toulouse, France; (F.G.); (M.L.); (L.B.)
| | - Laetitia Bugarel
- Centre for Clinical Investigation in Biotherapy, CHU Toulouse-Rangueil and INSERM U1436, 31059 Toulouse, France; (F.G.); (M.L.); (L.B.)
| | - Céline Deraison
- IRSD, University of Toulouse, INSERM 1022, INRAe, ENVT, UPS, 31300 Toulouse, France; (C.D.); (N.V.)
| | - Nathalie Vergnolle
- IRSD, University of Toulouse, INSERM 1022, INRAe, ENVT, UPS, 31300 Toulouse, France; (C.D.); (N.V.)
| | - Barbara Bournet
- Department of Gastroenterology and Pancreatology, CHU Toulouse-Rangueil and Toulouse University, UPS, 31059 Toulouse, France; (G.L.C.); (B.B.); (C.G.)
| | - Cyrielle Gilletta
- Department of Gastroenterology and Pancreatology, CHU Toulouse-Rangueil and Toulouse University, UPS, 31059 Toulouse, France; (G.L.C.); (B.B.); (C.G.)
| | - Louis Buscail
- Department of Gastroenterology and Pancreatology, CHU Toulouse-Rangueil and Toulouse University, UPS, 31059 Toulouse, France; (G.L.C.); (B.B.); (C.G.)
- Centre for Clinical Investigation in Biotherapy, CHU Toulouse-Rangueil and INSERM U1436, 31059 Toulouse, France; (F.G.); (M.L.); (L.B.)
- Correspondence: ; Tel.: +33-561323055
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8
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Singh A, Mahajan R, Kedia S, Dutta AK, Anand A, Bernstein CN, Desai D, Pai CG, Makharia G, Tevethia HV, Mak JW, Kaur K, Peddi K, Ranjan MK, Arkkila P, Kochhar R, Banerjee R, Sinha SK, Ng SC, Hanauer S, Verma S, Dutta U, Midha V, Mehta V, Ahuja V, Sood A. Use of thiopurines in inflammatory bowel disease: an update. Intest Res 2021; 20:11-30. [PMID: 33845546 PMCID: PMC8831775 DOI: 10.5217/ir.2020.00155] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/01/2021] [Indexed: 12/11/2022] Open
Abstract
Inflammatory bowel disease (IBD), once considered a disease of the Western hemisphere, has emerged as a global disease. As the disease prevalence is on a steady rise, management of IBD has come under the spotlight. 5-Aminosalicylates, corticosteroids, immunosuppressive agents and biologics are the backbone of treatment of IBD. With the advent of biologics and small molecules, the need for surgery and hospitalization has decreased. However, economic viability and acceptability is an important determinant of local prescription patterns. Nearly one-third of the patients in West receive biologics as the first/initial therapy. The scenario is different in developing countries where biologics are used only in a small proportion of patients with IBD. Increased risk of reactivation of tuberculosis and high cost of the therapy are limitations to their use. Thiopurines hence become critical for optimal management of patients with IBD in these regions. However, approximately one-third of patients are intolerant or develop adverse effects with their use. This has led to suboptimal use of thiopurines in clinical practice. This review article discusses the clinical aspects of thiopurine use in patients with IBD with the aim of optimizing their use to full therapeutic potential.
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Affiliation(s)
- Arshdeep Singh
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India
| | - Ramit Mahajan
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India
| | - Saurabh Kedia
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Amit Kumar Dutta
- Department of Gastroenterology, Christian Medical College, Vellore, India
| | - Abhinav Anand
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Charles N Bernstein
- University of Manitoba IBD Clinical and Research Centre, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Devendra Desai
- P. D. Hinduja Hospital and Medical Research Centre, Mumbai, India
| | - C Ganesh Pai
- Department of Gastroenterology, Kasturba Medical College, Manipal, India
| | - Govind Makharia
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | | | - Joyce Wy Mak
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Kirandeep Kaur
- Department of Pharmacology, Dayanand Medical College and Hospital, Ludhiana, India
| | - Kiran Peddi
- Citizens Centre for Digestive Disorders, Hyderabad, India
| | - Mukesh Kumar Ranjan
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Perttu Arkkila
- Department of Gastroenterology, Helsinki University Central Hospital, Helsinki, Finland
| | - Rakesh Kochhar
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rupa Banerjee
- Asian Institute of Gastroenterology Hyderabad, Hyderabad, India
| | - Saroj Kant Sinha
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Siew Chien Ng
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Stephen Hanauer
- Department of Medicine, Northwestern University, Chicago, IL, USA
| | - Suhang Verma
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Usha Dutta
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Vandana Midha
- Department of Internal Medicine, Dayanand Medical College, Ludhiana, India
| | - Varun Mehta
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India
| | - Vineet Ahuja
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Ajit Sood
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India
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9
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Enck P, Klosterhalfen S. The Placebo and Nocebo Responses in Clinical Trials in Inflammatory Bowel Diseases. Front Pharmacol 2021; 12:641436. [PMID: 33867990 PMCID: PMC8044413 DOI: 10.3389/fphar.2021.641436] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/28/2021] [Indexed: 12/12/2022] Open
Abstract
Placebo and nocebo responses are mostly discussed in clinical trials with functional bowel disorders. Much less has been investigated and is known in gastrointestinal diseases beyond irritable bowel syndrome (IBS), especially in inflammatory bowel diseases (IBD). For the purpose of this review, we screened the Journal of Interdisciplinary Placebo Studies (JIPS) database with approximately 4,500 genuine placebo research articles and identified nine meta-analyses covering more than 135 randomized and placebo-controlled trials (RCTs) with more than 10,000 patients with Crohn´s disease (CD) and another five meta-analyses with 150 RCTs and more than 10,000 patients with ulcerative colitis (UC). Only three discussed nocebo effects, especially in the context of clinical use of biosimilars to treat inflammation. The articles were critically analyzed with respect to the size of the placebo response in CD and UC, its effects on clinical improvement versus maintenance of remission, and mediators and moderators of the response identified. Finally, we discussed and compared the differences and similarities of the placebo responses in IBD and IBS and the nocebo effect in switching from biologics to biosimilars in IBD management.
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Affiliation(s)
- Paul Enck
- Department of Internal Medicine VI: Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany
| | - Sibylle Klosterhalfen
- Department of Internal Medicine VI: Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany
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10
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Reinisch W, Mishkin DS, Oh YS, Schreiber S, Hussain F, Jacob R, Hassanali A, Daperno M. Impact of various central endoscopy reading models on treatment outcome in Crohn's disease using data from the randomized, controlled, exploratory cohort arm of the BERGAMOT trial. Gastrointest Endosc 2021; 93:174-182.e2. [PMID: 32464142 DOI: 10.1016/j.gie.2020.05.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/01/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Endoscopic assessment of mucosal appearance by independent central reading has become the standard method to assess Crohn's disease activity in clinical trials. The performance characteristics of various endoscopy reading models have yet to be systematically evaluated. METHODS This substudy included patients with Crohn's disease in the exploratory induction cohort of the BERGAMOT trial (NCT02394028) randomly assigned to etrolizumab or placebo. Endoscopies conducted at baseline and week 14 were independently scored using the Simple Endoscopic Score for Crohn's Disease (SES-CD) by a local reader (LR) and 2 central readers (CRs). Five endoscopy reading models were compared: single LR, single CR, average of 2 CRs, and 2 models incorporating the LR and 1 or 2 CRs depending on alignment between the LR and the CR, defined according to a sliding scale applied to a range of scores. RESULTS Five hundred thirty-five videos were scored. Models involving 2 readers demonstrated lower placebo rates (3.4%) than the single LR (11.9%) and the single CR (6.8%) models. Treatment effect size based on endoscopic improvement (≥50% reduction in SES-CD from baseline) was highest with the 2 models incorporating the LR and 1 or 2 CRs (Δ = 16.2%). Further, in the etrolizumab arm, models with 2 readers demonstrated the lowest variability for the SES-CD. CONCLUSIONS Central endoscopy reading models in Crohn's disease have an impact on placebo response rates and effect size. Incorporating the LR appears to be important because models using both CRs and LRs resulted in the greatest treatment effect size for endoscopic improvement with etrolizumab, lower placebo rates, and reduced variability.
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Affiliation(s)
| | | | - Young S Oh
- Genentech, Inc, South San Francisco, California, USA
| | | | - Fez Hussain
- Gastroenterology Center of Excellence, IQVIA, Reading
| | - Rhian Jacob
- Roche Products Limited, Welwyn Garden City, United Kingdom
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Nagai K, Matsubayashi K, Ide K, Seto K, Kawasaki Y, Kawakami K. Factors Influencing Placebo Responses in Rheumatoid Arthritis Clinical Trials: A Meta-Analysis of Randomized, Double-Blind, Placebo-Controlled Studies. Clin Drug Investig 2020; 40:197-209. [PMID: 31953723 DOI: 10.1007/s40261-020-00887-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND OBJECTIVE A better understanding of placebo responses and the specific factors influencing these outcomes is important for clinical trial design. We investigated the magnitude of placebo responses at 3 months and the potential factors influencing these outcomes in rheumatoid arthritis (RA) clinical trials. METHODS We conducted a systematic review of randomized placebo-controlled trials of pharmacological agents for RA identified from PubMed, Embase, and Cochrane Central Register of Controlled Trials databases. The primary placebo outcome was American College of Rheumatology 20% response rate (ACR20). Data were pooled with a random-effects model. Factors influencing placebo response were assessed by meta-regression analyses. Subgroup analyses were performed for studies conducted in non-Western countries only versus in Western countries (North America and/or Europe) only or both. RESULTS The meta-analysis included 88 studies comprising 8406 patients receiving a placebo. The pooled estimate of placebo ACR20 was 29.0% (range 10.0-46.2; 95% confidence interval 27.2-30.9). Placebo ACR20 was negatively associated with trials in non-Western (Asian) countries and patient populations showing an inadequate response to biological disease-modifying antirheumatic drugs (DMARDs) in the multivariable analysis, whereas it was positively associated with the year of publication. No background DMARD treatment was also a negative predictor (albeit statistically non-significant). In subgroup analyses of Western and multiregional studies, study population and publication year were significant factors. CONCLUSIONS Our meta-analysis suggests that study location, patient population, and a background DMARD treatment influence placebo ACR20. These along with placebo response temporal profiles have important implications for designing and interpreting RA clinical trials.
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Affiliation(s)
- Kota Nagai
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
- Eisai Co., Ltd., 4-6-10 Koishikawa, Bunkyo-ku, Tokyo, 112-8088, Japan
| | - Keisuke Matsubayashi
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Kazuki Ide
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
- Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, 606-8501, Japan
| | - Kahori Seto
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Yohei Kawasaki
- Biostatistics Section, Clinical Research Center, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8677, Japan
| | - Koji Kawakami
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
- Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, 606-8501, Japan.
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Estevinho MM, Afonso J, Rosa I, Lago P, Trindade E, Correia L, Dias CC, Magro F. Placebo Effect on the Health-related Quality of Life of Inflammatory Bowel Disease Patients: A Systematic Review With Meta-analysis. J Crohns Colitis 2018; 12:1232-1244. [PMID: 30010736 DOI: 10.1093/ecco-jcc/jjy100] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIMS Placebo effect in health-related quality of life [HRQoL] of inflammatory bowel disease [IBD] patients has been poorly characterised. This systematic review and meta-analysis aimed to assess: i] mean improvements in IBDQ [Inflammatory Bowel Disease Questionnaire] and SF-36 [36-Item Short Form Health Survey] scores among placebo-treated IBD patients; and ii] the proportion of placebo-treated patients achieving IBDQ-defined response and remission and correspondent odds ratios [OR]. METHODS Literature search was performed using four databases. Mean differences and ORs were computed using the random-effects model. Univariate and multivariate regressions were performed to evaluate the weight of different factors on the placebo effect. RESULTS From the 328 identified records 26 were included in the study, comprising 2842 placebo-treated IBD patients. Pooled mean differences on IBDQ following placebo administration were above the clinically meaningful improvement [≥16 points] in ulcerative colitis [UC] patients during the induction regimen (17.67; 95% confidence interval [CI]: 12.90, 22.44) and during maintenance in both Crohn's disease [CD] [27.60; 95% CI: 14.29, 40.91] and UC patients [27.50; 95% CI: 18.73, 36.27]. The treatment regimen was the only significant variable in multivariate analysis, with lower placebo-related IBDQ improvements during induction. Maintenance trials' inclusion criteria were also relevant. The proportions of placebo-treated patients achieving IBDQ-defined response and remission were 0.42 [95% CI: 0.49, 0.56] and 0.31 [95% CI: 0.28, 0.34], respectively, with 0.49 and 0.40 the ORs for response and remission. Significant improvements were also observed on SF-36 score. CONCLUSIONS Herein we prove that placebo effect on HRQoL is meaningful, providing insights about implications for clinical trials' design and interpretation and for IBD management.
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Affiliation(s)
- Maria Manuela Estevinho
- Department of Pharmacology and Therapeutics, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Joana Afonso
- Department of Pharmacology and Therapeutics, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Isadora Rosa
- Gastroenterology Department, Instituto Portugue^s de Oncologia de Lisboa, Lisboa, Portugal
| | - Paula Lago
- Gastroenterology Department, Centro Hospitalar do Porto, Porto, Portugal
| | - Eunice Trindade
- Department of Pediatrics, Centro Hospitalar São João, Porto, Portugal
| | - Luís Correia
- Department of Gastroenterology and Hepatology, Hospital de Santa Maria, University of Lisbon, Lisbon, Portugal
| | - Cláudia Camila Dias
- Department of Community Medicine, Information and Decision in Health, Faculty of Medicine of the University of Porto, and Centre for Health Technology and Services Research, Porto, Portugal
| | - Fernando Magro
- Department of Pharmacology and Therapeutics, Faculty of Medicine of the University of Porto, Porto, Portugal.,Department of Gastroenterology, Centro Hospitalar São João, Porto, Portugal
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Sebastian S, Black C, Pugliese D, Armuzzi A, Sahnan K, Elkady SM, Katsanos KH, Christodoulou DK, Selinger C, Maconi G, Fearnhead NS, Kopylov U, Davidov Y, Bosca-Watts MM, Ellul P, Muscat M, Karmiris K, Hart AL, Danese S, Ben-Horin S, Fiorino G. The role of multimodal treatment in Crohn's disease patients with perianal fistula: a multicentre retrospective cohort study. Aliment Pharmacol Ther 2018; 48:941-950. [PMID: 30226271 DOI: 10.1111/apt.14969] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 06/18/2018] [Accepted: 08/08/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Treatment paradigms for Crohn's disease with perianal fistulae (CD-pAF) are evolving. AIMS To study the impact of multimodality treatment in CD-pAF on recurrence rates and the need for re-interventions and to identify predictive factors for these outcomes. METHODS This was a multinational multicentre retrospective cohort study. Multimodality approach was defined as using a combination of medical treatments (anti-TNFs ± immunomodulators ± antibiotics) along with surgical approach (examination under anaesthesia (EUA) ± seton drainage) at diagnosis of CD-pAF. Univariable and multivariable analyses were performed for variables indicative of the need for reintervention. RESULTS A total of 253 patients were included. 65% of patients received multimodality approach. Multimodality treatment resulted in complete fistula healing in 52% of patients. Re-intervention was needed in 27% of patients with simple and in 40.3% of those with complex fistula. On multivariable analysis multimodality treatment (OR: 0.35, 95% CI: 0.17-0.57, P = 0.001), seton removal (OR: 0.090, 95% CI: 0.027-0.30, P = 0.0001, therapy with infliximab (OR: 0.19, 95% CI: 0.06-0.64, P = 0.007), and therapy with adalimumab (OR: 0.12, "95% CI: 0.026-0.56, P = 0.007) were predictive of avoiding repeat surgery. Proctitis (OR: 3.76, 95% CI: 1.09-12.96, P = 0.03) was predictive of the need for radical surgery (proctectomy, diverting stoma) while multimodality treatment reduced the need for radical surgery (OR: 0.21, 95% CI: 0.05-0.81, P = 0.02). CONCLUSIONS Multimodality treatment, anti-TNFs use, and removal of setons after multimodality treatment can result in improved outcomes in CD patients with perianal fistulae and reduce the need for repeat surgery and radical surgery.
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Abstract
Fistulas still represent one of the most important complications in patients with Crohn’s disease (CD). At least one third of CD patients suffer from fistulas during their disease course and amongst them longstanding remission of complex fistulas occurs only in about one third. So far, fistula pathogenesis is only partially understood. From a histopathological view, a fistula is a tube covered by flat epithelial cells. Current research suggests that the driving force for fistula development is epithelial-to-mesenchymal transition (EMT). Around the fistula, high levels of tumor necrosis factor (TNF), IL-13, and TGFβ can be detected and recent studies indicated an involvement of the intestinal microbiota. Fistula diagnosis requires clinical and surgical assessment, radiologic investigations, e.g., magnet resonance imaging and endoscopy. Routine medical treatment of fistulas includes antibiotics, immunosuppressives, and anti-TNF antibodies. There is no well-established role for calcineurin inhibitors in fistula treatment, corticosteroids appear to be even contra-productive. A promising novel approach might be the application of adipose tissue-derived or bone marrow-derived mesenchymal stem cells that have been studied recently. Due to insufficient efficacy of medical treatment and recurrence of fistulas, surgical interventions are frequently necessary. Further research is needed to better understand fistula pathogenesis aiming to develop novel treatment option for our patients.
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Jairath V, Zou G, Parker CE, MacDonald JK, Mosli MH, AlAmeel T, Al Beshir M, AlMadi M, Al-Taweel T, Atkinson NSS, Biswas S, Chapman TP, Dulai PS, Glaire MA, Hoekman D, Kherad O, Koutsoumpas A, Minas E, Restellini S, Samaan MA, Khanna R, Levesque BG, D'Haens G, Sandborn WJ, Feagan BG. Systematic review with meta-analysis: placebo rates in induction and maintenance trials of Crohn's disease. Aliment Pharmacol Ther 2017; 45:1021-1042. [PMID: 28164348 DOI: 10.1111/apt.13973] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/08/2016] [Accepted: 01/16/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Minimising placebo response is essential for drug development. AIM To conduct a meta-analysis to determine placebo response and remission rates in trials and identify the factors affecting these rates. METHODS MEDLINE, EMBASE and CENTRAL were searched from inception to April 2014 for placebo-controlled trials of pharmacological interventions for Crohn's disease. Placebo response and remission rates for induction and maintenance trials were pooled by random-effects and mixed-effects meta-regression models to evaluate effects of study-level characteristics on these rates. RESULTS In 100 studies containing 67 induction and 40 maintenance phases and 7638 participants, pooled placebo remission and response rates for induction trials were 18% [95% confidence interval (CI) 16-21%] and 28% (95% CI 24-32%), respectively. Corresponding values for maintenance trials were 32% (95% CI 25-39%) and 26% (95% CI 19-35%), respectively. For remission, trials enrolling patients with more severe disease activity, longer disease duration and more study centres were associated with lower placebo rates, whereas more study visits and longer study duration was associated with higher placebo rates. For response, findings were opposite such that trials enrolling patients with less severe disease activity and longer study duration were associated with lower placebo rates. Placebo rates varied by drug class and route of administration, with the highest placebo response rates observed for biologics. CONCLUSIONS Placebo rates vary according to whether trials are designed for induction or maintenance and the factors influencing them differ for the endpoints of remission and response. These findings have important implications for clinical trial design in Crohn's disease.
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Affiliation(s)
| | | | | | | | - M H Mosli
- London, ON, Canada.,Jeddah, Saudi Arabia
| | | | | | | | | | | | | | | | - P S Dulai
- London, ON, Canada.,La Jolla, CA, USA
| | | | | | | | | | | | | | | | | | | | - G D'Haens
- London, ON, Canada.,Amsterdam, The Netherlands
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Mantzaris GJ. Thiopurines and Methotrexate Use in IBD Patients in a Biologic Era. ACTA ACUST UNITED AC 2017; 15:84-104. [DOI: 10.1007/s11938-017-0128-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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17
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Experts Opinion on the Practical Use of Azathioprine and 6-Mercaptopurine in Inflammatory Bowel Disease. Inflamm Bowel Dis 2016; 22:2733-2747. [PMID: 27760078 DOI: 10.1097/mib.0000000000000923] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The relevance of azathioprine and 6-mercaptopurine therapy in inflammatory bowel disease, Crohn's disease, and ulcerative colitis, has been challenged in recent publications. In this article, a panel of experts gives advice, based on the relevant literature, on indications and practical use of azathioprine/6-mercaptopurine, prevention, and management of drug adverse reactions and special situations such as vaccination, pregnancy, and lactation.
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Guandalini S, Polanco I. Nonceliac gluten sensitivity or wheat intolerance syndrome? J Pediatr 2015; 166:805-11. [PMID: 25662287 DOI: 10.1016/j.jpeds.2014.12.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 11/24/2014] [Accepted: 12/16/2014] [Indexed: 12/19/2022]
Affiliation(s)
- Stefano Guandalini
- Section of Pediatric Gastroenterology, Hepatology, and Nutrition, University of Chicago, Chicago, IL.
| | - Isabel Polanco
- Autonomous University, La Paz Children's University Hospital, Madrid, Spain
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Juncadella AC, Alame AM, Sands LR, Deshpande AR. Perianal Crohn’s disease: A review. Postgrad Med 2015; 127:266-72. [DOI: 10.1080/00325481.2015.1023160] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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