1
|
Katibian DJ, Solitano V, Polk DB, Nguyen T, Ma C, Syal G, Kobayashi T, Hibi T, Buhl S, Ainsworth MA, Jairath V, Singh S. Withdrawal of Immunomodulators or TNF Antagonists in Patients With Inflammatory Bowel Diseases in Remission on Combination Therapy: A Systematic Review and Meta-analysis. Clin Gastroenterol Hepatol 2024; 22:22-33.e6. [PMID: 37716619 DOI: 10.1016/j.cgh.2023.08.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/25/2023] [Accepted: 08/19/2023] [Indexed: 09/18/2023]
Abstract
BACKGROUND & AIMS Withdrawal of immunomodulators (IMMs) or tumor necrosis factor (TNF) antagonists in patients with inflammatory bowel diseases (IBDs) in remission on combination therapy is attractive. We evaluated the efficacy and safety of (1) IMM, or (2) TNF antagonist withdrawal in patients with IBD in sustained remission on combination therapy. METHODS Through a systematic review till March 31, 2023, we identified randomized controlled trials (RCTs) that compared the efficacy and safety of IMM or TNF antagonist withdrawal vs continued combination therapy, in patients with IBD in sustained corticosteroid-free clinical remission for >6 months on combination therapy. Primary outcome was risk of relapse and serious adverse events at 12 months. We conducted meta-analysis to calculate relative risk (RR) and 95% confidence interval (CI) and used Grading of Recommendations Assessment, Development and Evaluation (GRADE) to appraise certainty of evidence. RESULTS We identified 8 RCTs with 733 patients (77% with Crohn's disease, 91% on infliximab-based combination therapy). On meta-analysis of 5 RCTs, there was no difference in the risk of relapse between patients with IMM withdrawal (continued TNF antagonist monotherapy) vs continued combination therapy (16.8% vs 14.9%; RR, 1.15; 95% CI, 0.75-1.76) without heterogeneity (low certainty of evidence). TNF antagonist withdrawal (continued IMM monotherapy) was associated with 2.4-times higher risk of relapse compared with continuing combination therapy (31.5% vs 11.2%; RR, 2.35; 95% CI, 1.38-4.01), with minimal heterogeneity (low certainty of evidence). There was no difference in the risk of serious adverse events with IMM or TNF antagonist withdrawal vs continued combination therapy. CONCLUSIONS In patients with IBD in sustained corticosteroid-free clinical remission for >6 months on combination therapy, de-escalation with TNF antagonist withdrawal, but not IMM withdrawal, was associated with an increased risk of relapse.
Collapse
Affiliation(s)
- David J Katibian
- Division of Gastroenterology, Hepatology and Nutrition, Rady Children's Hospital, San Diego, California; Department of Pediatrics, University of California, San Diego, La Jolla, California
| | - Virginia Solitano
- Division of Gastroenterology, Department of Medicine, Western University, London, Ontario, Canada; Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - D Brent Polk
- Division of Gastroenterology, Hepatology and Nutrition, Rady Children's Hospital, San Diego, California; Department of Pediatrics, University of California, San Diego, La Jolla, California
| | - Tran Nguyen
- Division of Gastroenterology, Department of Medicine, Western University, London, Ontario, Canada
| | - Christopher Ma
- Division of Gastroenterology and Hepatology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; Alimentiv Inc, London, Ontario, Canada
| | - Gaurav Syal
- Division of Gastroenterology, University of California San Diego, La Jolla, California
| | - Taku Kobayashi
- Center for Advanced IBD Research and Treatment; Kitasato University, Tokyo, Japan
| | - Toshifumi Hibi
- Center for Advanced IBD Research and Treatment; Kitasato University, Tokyo, Japan
| | - Sine Buhl
- Department of Gastroenterology, Copenhagen University Hospital-Herlev and Gentofte, Herlev, Denmark
| | - Mark Andrew Ainsworth
- Department of Medical Gastroenterology S, Odense University Hospital, Odense, Denmark
| | - Vipul Jairath
- Division of Gastroenterology, Department of Medicine, Western University, London, Ontario, Canada; Alimentiv Inc, London, Ontario, Canada; Department of Epidemiology & Biostatistics, Western University, London, Ontario, Canada
| | - Siddharth Singh
- Division of Gastroenterology, University of California San Diego, La Jolla, California; Division of Biomedical Informatics, University of California San Diego, La Jolla, California.
| |
Collapse
|
2
|
Murthy SK, Weizman AV, Kuenzig ME, Windsor JW, Kaplan GG, Benchimol EI, Bernstein CN, Bitton A, Coward S, Jones JL, Lee K, Peña-Sánchez JN, Rohatinsky N, Ghandeharian S, Sabrie N, Gupta S, Brar G, Khan R, Im JHB, Davis T, Weinstein J, St-Pierre J, Chis R, Meka S, Cheah E, Goddard Q, Gorospe J, Kerr J, Beaudion KD, Patel A, Russo S, Blyth J, Blyth S, Charron-Bishop D, Targownik LE. The 2023 Impact of Inflammatory Bowel Disease in Canada: Treatment Landscape. J Can Assoc Gastroenterol 2023; 6:S97-S110. [PMID: 37674501 PMCID: PMC10478812 DOI: 10.1093/jcag/gwad015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/08/2023] Open
Abstract
The therapeutic landscape for inflammatory bowel disease (IBD) has changed considerably over the past two decades, owing to the development and widespread penetration of targeted therapies, including biologics and small molecules. While some conventional treatments continue to have an important role in the management of IBD, treatment of IBD is increasingly moving towards targeted therapies given their greater efficacy and safety in comparison to conventional agents. Early introduction of these therapies-particularly in persons with Crohn's disease-combining targeted therapies with traditional anti-metabolite immunomodulators and targeting objective markers of disease activity (in addition to symptoms), have been shown to improve health outcomes and will be increasingly adopted over time. The substantially increased costs associated with targeted therapies has led to a ballooning of healthcare expenditure to treat IBD over the past 15 years. The introduction of less expensive biosimilar anti-tumour necrosis factor therapies may bend this cost curve downwards, potentially allowing for more widespread access to these medications. Newer therapies targeting different inflammatory pathways and complementary and alternative therapies (including novel diets) will continue to shape the IBD treatment landscape. More precise use of a growing number of targeted therapies in the right individuals at the right time will help minimize the development of expensive and disabling complications, which has the potential to further reduce costs and improve outcomes.
Collapse
Affiliation(s)
- Sanjay K Murthy
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- The Ottawa Hospital IBD Centre, Ottawa, Ontario, Canada
| | - Adam V Weizman
- Division of Gastroenterology and Hepatology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - M Ellen Kuenzig
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Joseph W Windsor
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Gilaad G Kaplan
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Eric I Benchimol
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Department of Paediatrics, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Charles N Bernstein
- Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- University of Manitoba IBD Clinical and Research Centre, Winnipeg, Manitoba, Canada
| | - Alain Bitton
- Division of Gastroenterology and Hepatology, McGill University Health Centre IBD Centre, McGill University, Montréal, Quebec, Canada
| | - Stephanie Coward
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Jennifer L Jones
- Departments of Medicine, Clinical Health, and Epidemiology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Kate Lee
- Crohn’s and Colitis Canada, Toronto, Ontario, Canada
| | - Juan-Nicolás Peña-Sánchez
- Department of Community Health and Epidemiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Noelle Rohatinsky
- College of Nursing, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | | | - Nasruddin Sabrie
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Sarang Gupta
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Gurmun Brar
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Rabia Khan
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
| | - James H B Im
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Tal Davis
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jake Weinstein
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Joëlle St-Pierre
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Roxana Chis
- Department of Gastroenterology and Hepatology, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Saketh Meka
- Department of Neuroscience, McGill University, Montreal, Quebec, Canada
| | - Eric Cheah
- Department of Gastroenterology and Clinical Nutrition, The Royal Children’s Hospital Melbourne, Parkville, Australia
| | - Quinn Goddard
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Julia Gorospe
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Jack Kerr
- Department of Medicine, Memorial University of Newfoundland, St John’s Newfoundland, Canada
| | - Kayla D Beaudion
- Department of Interdisciplinary Science, McMaster University, Hamilton, Ontario, Canada
| | - Ashley Patel
- Crohn’s and Colitis Canada, Toronto, Ontario, Canada
| | - Sophia Russo
- Department of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, Vancouver, British Colombia, Canada
| | | | | | | | - Laura E Targownik
- Division of Gastroenterology and Hepatology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
3
|
Yuan W, Marwaha JS, Rakowsky ST, Palmer NP, Kohane IS, Rubin DT, Brat GA, Feuerstein JD. Trends in Medical Management of Moderately to Severely Active Ulcerative Colitis: A Nationwide Retrospective Analysis. Inflamm Bowel Dis 2022; 29:695-704. [PMID: 35786768 PMCID: PMC10152283 DOI: 10.1093/ibd/izac134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND With an increasing number of therapeutic options available for the management of ulcerative colitis (UC), the variability in treatment and prescribing patterns is not well known. While recent guidelines have provided updates on how these therapeutic options should be used, patterns of long-term use of these drugs over the past 2 decades remain unclear. METHODS We analyzed a retrospective, nationwide cohort of more than 1.7 million prescriptions for trends in prescribing behaviors and to evaluate practices suggested in guidelines relating to ordering biologics, step-up therapy, and combination therapy. The primary outcome was 30-day steroid-free remission and secondary outcomes included hospitalization, cost, and additional steroid usage. A pipeline was created to identify cohorts of patients under active UC medical management grouped by prescribing strategies to evaluate comparative outcomes between strategies. Cox proportional hazards and multivariate regression models were utilized to assess postexposure outcomes and adjust for confounders. RESULTS Among 6 major drug categories, we noted major baseline differences in patient characteristics at first exposure corresponding to disease activity. We noted earlier use of biologics in patient trajectories (762 days earlier relative to UC diagnosis, 2018 vs 2008; P < .001) and greater overall use of biologics over time (2.53× more in 2018 vs 2008; P < .00001) . Among biologic-naive patients, adalimumab was associated with slightly lower rates of remission compared with infliximab or vedolizumab (odds ratio, 0.92; P < .005). Comparisons of patients with early biologic initiation to patients who transitioned to biologics from 5-aminosalicylic acid suggest lower steroid consumption for early biologic initiation (-761 mg prednisone; P < .001). Combination thiopurine-biologic therapy was associated with higher odds of remission compared with biologic monotherapy (odds ratio, 1.36; P = .01). CONCLUSIONS As biologic drugs have become increasingly available for UC management, they have increasingly been used at earlier stages of disease management. Large-scale analyses of prescribing behaviors provide evidence supporting early use of biologics compared with step-up therapy and use of thiopurine and biologic combination therapy.
Collapse
Affiliation(s)
- William Yuan
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.,Computational Health Informatics Program, Boston Children's Hospital, Boston, MA, USA
| | - Jayson S Marwaha
- Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Shana T Rakowsky
- Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Nathan P Palmer
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA
| | - Isaac S Kohane
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA
| | - David T Rubin
- Section of Gastroenterology, Hepatology and Nutrition, University of Chicago Medicine, Chicago, IL, USA
| | - Gabriel A Brat
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA.,Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Joseph D Feuerstein
- Division of Gastroenterology and Center for Inflammatory Bowel Diseases, Beth Israel Deaconess Medical Center, Boston, MA, USA
| |
Collapse
|
4
|
Sands BE, Irving PM, Hoops T, Izanec JL, Gao LL, Gasink C, Greenspan A, Allez M, Danese S, Hanauer SB, Jairath V, Kuehbacher T, Lewis JD, Loftus EV, Mihaly E, Panaccione R, Scherl E, Shchukina OB, Sandborn WJ. Ustekinumab versus adalimumab for induction and maintenance therapy in biologic-naive patients with moderately to severely active Crohn's disease: a multicentre, randomised, double-blind, parallel-group, phase 3b trial. Lancet 2022; 399:2200-2211. [PMID: 35691323 DOI: 10.1016/s0140-6736(22)00688-2] [Citation(s) in RCA: 86] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/31/2022] [Accepted: 04/05/2022] [Indexed: 12/19/2022]
Abstract
BACKGROUND Active-comparator trials are important to inform patient and physician choice. We aimed to evaluate the efficacy and safety of monotherapy with either ustekinumab or adalimumab in biologic-naive patients with moderately to severely active Crohn's disease. METHODS We conducted a randomised, double-blind, parallel-group, active-comparator, phase 3b trial (SEAVUE) at 121 hospitals or private practices in 18 countries. We included biologic-naive patients aged 18 years or older with moderately to severely active Crohn's disease and a Crohn's Disease Activity Index (CDAI) score of 220-450, who had not responded to or were intolerant to conventional therapy (or were corticosteroid dependent) and had at least one ulcer of any size at baseline endoscopic evaluation. Eligible patients were randomly assigned (1:1; via an interactive web response system) to receive ustekinumab (approximately 6 mg/kg intravenously on day 0, then 90 mg subcutaneously once every 8 weeks) or adalimumab (160 mg on day 0, 80 mg at 2 weeks, then 40 mg once every 2 weeks, subcutaneously) through week 56. Study treatments were administered as monotherapy and without dose modifications. Patients, investigators, and study site personnel were masked to treatment group assignment. The primary endpoint was the proportion of patients who were in clinical remission (CDAI score <150) at week 52 in the intention-to-treat population (ie, all patients who were randomly assigned to a treatment group). This trial is registered with ClinicalTrials.gov, NCT03464136, and EudraCT, 2017-004209-41. FINDINGS Between June 28, 2018, and Dec 12, 2019, 633 patients were assessed for eligibility and 386 were enrolled and randomly assigned to receive ustekinumab (n=191) or adalimumab (n=195). 29 (15%) of 191 patients in the ustekinumab group and 46 (24%) of 195 in the adalimumab group discontinued study treatment before week 52. There was no significant difference between the ustekinumab and adalimumab groups in the occurrence of the primary endpoint; at week 52, 124 (65%) of 191 patients in the ustekinumab group versus 119 (61%) of 195 in the adalimumab group were in clinical remission (between-group difference 4%, 95% CI -6 to 14; p=0·42). Safety for both groups was consistent with previous reports. Serious infections were reported in four (2%) of 191 patients in the ustekinumab group and five (3%) of 195 in the adalimumab group. No deaths occurred through week 52 of the study. INTERPRETATION Both ustekinumab and adalimumab monotherapies were highly effective in this population of biologic-naive patients, with no difference in the primary outcome between the drugs. FUNDING Janssen Scientific Affairs.
Collapse
Affiliation(s)
- Bruce E Sands
- Dr Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Peter M Irving
- Department of Gastroenterology, Guy's and St Thomas' NHS Foundation Trust, London, UK; School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Timothy Hoops
- Immunology Global Medical Affairs, Janssen Pharmaceutical Companies of Johnson & Johnson, Horsham, PA, USA
| | | | | | | | | | - Matthieu Allez
- Gastroenterology Department, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris (AP-HP), INSERM U1160, Université de Paris, Paris, France
| | - Silvio Danese
- Gastroenterology and Endoscopy, IRCCS Ospedale San Raffaele and Università Vita-Salute San Raffaele, Milan, Italy
| | - Stephen B Hanauer
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Vipul Jairath
- Division of Gastroenterology, Department of Medicine, University Hospital, London, ON, Canada; Division of Epidemiology and Biostatistics, Western University, London, ON, Canada
| | - Tanja Kuehbacher
- Department of Internal Medicine, Gastroenterology, Diabetology, Hemato-Oncology, and Palliative Medicine, Medius Clinic Nuertingen, Nürtingen, Germany
| | - James D Lewis
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Edward V Loftus
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Emese Mihaly
- Department of Internal Medicine and Hematology, Semmelweis University, Budapest, Hungary
| | - Remo Panaccione
- Inflammatory Bowel Disease Unit, Division of Gastroenterology and Hepatology, University of Calgary, Calgary, AB, Canada
| | - Ellen Scherl
- Weill Department of Medicine, New York Presbyterian Hospital Weill Cornell Medicine, New York, NY, USA
| | - Oksana B Shchukina
- Division The City Center for IBD Diagnosis and Treatment, Saint Petersburg State Budgetary Health Institution, City Clinical Hospital 31, Saint Petersburg, Russia
| | - William J Sandborn
- Division of Gastroenterology, University of California San Diego, La Jolla, CA, USA
| |
Collapse
|
5
|
Singh S, Heien HC, Sangaralingham L, Shah ND, Sandborn WJ. Risk of Malignancy with Vedolizumab Versus Tumor Necrosis Factor-α Antagonists in Patients with Inflammatory Bowel Diseases. Dig Dis Sci 2022; 67:2510-2516. [PMID: 34085174 PMCID: PMC8933138 DOI: 10.1007/s10620-021-07073-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/19/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIMS We conducted a retrospective cohort study comparing the risk of malignancy between patients treated with vedolizumab vs. tumor necrosis factor-α (TNFα) antagonists in patients with inflammatory bowel diseases (IBD). METHODS Using an administrative claims database, we identified patients with IBD without prior malignancy who were new users of either vedolizumab or TNFα antagonists between 2014-2018, with no prior exposure to either biologic or in preceding 1 y and had insurance coverage for at least 1 y after treatment initiation. We estimated incidence rate of malignancy (solid organ, hematological or skin cancers) in patients treated with vedolizumab and TNFα antagonists, and compared risk using Cox proportional hazard analysis. RESULTS We included 4807 patients treated with TNFα antagonists (age, 41 ± 15 y, 60% with Crohn's disease [CD]) of whom 65 developed malignancy over 7214 person-year [PY] follow-up (incidence rate [IR], 9.0 per 1000-PY), and 759 patients treated with vedolizumab (age, 46 ± 16y, 42% CD) of whom 11 developed malignancy over 950-PY follow-up (IR, 11.6). No difference was observed in the incidence of malignancy between vedolizumab versus TNFα antagonists (incidence rate ratio, 1.28; 95% CI, 0.61-2.45). After adjusting for age, sex, race, comorbidity burden, disease phenotype and concomitant use of immunomodulators, no difference was observed in time to incident malignancy between vedolizumab versus TNFα antagonists (HR, 1.15; 95% CI, 0.61-2.19). Similar results were observed on stratified analysis by age and concomitant immunomodulators, and after excluding non-melanoma skin cancers. CONCLUSIONS In an observational study of patients with IBD, no differences were observed in the risk of incident malignancy in patients treated with vedolizumab versus TNFα antagonists.
Collapse
Affiliation(s)
- Siddharth Singh
- Division of Gastroenterology, University of California San Diego, La Jolla, California;,Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, California
| | - Herbert C. Heien
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota
| | - Lindsey Sangaralingham
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota
| | - Nilay D. Shah
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota;,Division of Health Care Policy and Research, Department of Health Services Research, Mayo Clinic, Rochester, Minnesota
| | - William J. Sandborn
- Division of Gastroenterology, University of California San Diego, La Jolla, California
| |
Collapse
|
6
|
Thomsen SB, Ungaro RC, Allin KH, Elmahdi R, Poulsen G, Andersson M, Colombel JF, Jess T. Impact of thiopurine discontinuation at anti-tumour necrosis factor initiation in inflammatory bowel disease treatment: a nationwide Danish cohort study. Aliment Pharmacol Ther 2022; 55:1128-1138. [PMID: 35080036 DOI: 10.1111/apt.16777] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/27/2021] [Accepted: 01/08/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Escalation to anti-tumour necrosis factor (anti-TNF) in inflammatory bowel disease (IBD) patients on thiopurine is a common clinical scenario. However, the impact of discontinuing thiopurine at escalation is unclear. AIM To assess the impact of discontinuing versus continuing thiopurine therapy at anti-TNF initiation. METHODS We used the Danish registries to establish a national cohort of patients with IBD on thiopurine therapy prior to initiating anti-TNF from 2003 to 2018. We compared patients discontinuing thiopurine therapy within 90 days of anti-TNF initiation to those continuing. Our primary outcome was a composite of any new oral corticosteroid use, IBD-related hospitalization, surgery or death. We used Cox regression models to calculate adjusted hazard ratios (aHR) and 95% confidence intervals (CI). RESULTS Of the 10,352 anti-TNF exposed patients, 2,630 (1590 Crohn's disease (CD) and 1040 ulcerative colitis (UC)) received thiopurines prior to anti-TNF. After anti-TNF initiation, 979 patients discontinued thiopurines. Discontinuing thiopurines within 90 days of anti-TNF initiation, increased the risk of the primary outcome (aHR: 1.22; 95% CI: 1.10-1.36), particularly for IBD-related hospitalization (aHR: 1.14; 95% CI: 1.00-1.31) and oral corticosteroid use (aHR: 1.27; 95% CI: 1.13-1.44). This increased risk of the primary outcome was seen in both CD (aHR: 1.17; 95% CI 1.02-1.34) and UC (aHR: 1.32; 95% CI: 1.12-1.55). CONCLUSIONS In a nationwide cohort study of IBD patients, we observed that discontinuing thiopurines after anti-TNF initiation was associated with an increased risk of adverse outcomes, in particular an increase in hospitalizations. Further interventional studies exploring this common clinical scenario are required.
Collapse
Affiliation(s)
- Sandra Bohn Thomsen
- Department of Clinical Medicine, Center for Molecular Prediction of Inflammatory Bowel Disease, Aalborg University, Copenhagen, Denmark
| | - Ryan C Ungaro
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Kristine H Allin
- Department of Clinical Medicine, Center for Molecular Prediction of Inflammatory Bowel Disease, Aalborg University, Copenhagen, Denmark
| | - Rahma Elmahdi
- Department of Clinical Medicine, Center for Molecular Prediction of Inflammatory Bowel Disease, Aalborg University, Copenhagen, Denmark
| | - Gry Poulsen
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Mikael Andersson
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Jean-Frederic Colombel
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Tine Jess
- Department of Clinical Medicine, Center for Molecular Prediction of Inflammatory Bowel Disease, Aalborg University, Copenhagen, Denmark.,Department of Gastroenterology and Hepatology, Aalborg University Hospital, Denmark
| |
Collapse
|
7
|
Cassinotti A, Batticciotto A, Parravicini M, Lombardo M, Radice P, Cortelezzi CC, Segato S, Zanzi F, Cappelli A, Segato S. Evidence-based efficacy of methotrexate in adult Crohn's disease in different intestinal and extraintestinal indications. Therap Adv Gastroenterol 2022; 15:17562848221085889. [PMID: 35340755 PMCID: PMC8949794 DOI: 10.1177/17562848221085889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 02/18/2022] [Indexed: 02/04/2023] Open
Abstract
INTRODUCTION Methotrexate (MTX) is included in the therapeutic armamentarium of Crohn's disease (CD), although its positioning is currently uncertain in an era in which many effective biological drugs are available. No systematic reviews or meta-analysis have stratified the clinical outcomes of MTX according to the specific clinical scenarios of its use. METHODS Medline, PubMed and Scopus were used to extract eligible studies, from database inception to May 2021. A total of 163 studies were included. A systematic review was performed by stratifying the outcomes of MTX according to formulation, clinical indication and criteria of efficacy. RESULTS The use of MTX is supported by randomized clinical trials only in steroid-dependent CD, with similar outcomes to thiopurines. The use of MTX in patients with steroid-refractoriness, failure of thiopurines or in combination with biologics is not supported by high levels of evidence. Combination therapy with biologics can optimize the immunogenic profile of the biological drug, but the impact on long-term clinical outcomes is described only in small series with anti-TNFα. Other off-label uses, such as fistulizing disease, mucosal healing, postoperative prevention and extraintestinal manifestations, are described in small uncontrolled series. The best performance in most indications was shown by parenteral MTX, favouring higher doses (25 mg/week) in the induction phase. DISCUSSION Evidence from high-quality studies in favour of MTX is scarce and limited to the steroid-dependent disease, in which other drugs are the leading players today. Many limitations on study design have been found, such as the prevalence of retrospective underpowered studies and the lack of stratification of outcomes according to specific types of patients and formulations of MTX. CONCLUSION MTX is a valid option as steroid-sparing agent in steroid-dependent CD. Numerous other clinical scenarios require well-designed clinical studies in terms of patient profile, drug formulation and dosage, and criteria of efficacy.
Collapse
Affiliation(s)
| | | | | | | | - Paolo Radice
- Ophtalmology Unit, ASST Sette Laghi, Varese, Italy
| | | | - Simone Segato
- Gastroenterology Unit, ASST Sette Laghi, Varese, Italy
| | | | | | - Sergio Segato
- Gastroenterology Unit, ASST Sette Laghi, Varese, Italy
| |
Collapse
|
8
|
Zhao M, Sall Jensen M, Knudsen T, Kelsen J, Coskun M, Kjellberg J, Burisch J. Trends in the use of biologicals and their treatment outcomes among patients with inflammatory bowel diseases - a Danish nationwide cohort study. Aliment Pharmacol Ther 2022; 55:541-557. [PMID: 34881439 DOI: 10.1111/apt.16723] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/21/2021] [Accepted: 11/19/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Therapeutic management of inflammatory bowel diseases (IBD) is rapidly evolving, with an expanding armoury of biological drugs at our disposal. However, real-world findings about treatment persistence and the impact of biologicals on surgery remain inconsistent. AIMS This study aimed to investigate trends in biological use and surgery rates in a nationwide cohort of biological-naïve IBD patients. METHODS Patients with IBD who initiated biological treatment between 2011 and 2018 were identified in the Danish National Patient Registry. Data on use of biologicals, surgeries and healthcare costs were retrieved and analysed for time trends. RESULTS Between 2011 and 2018, a total of 6,036 IBD (51% ulcerative colitis (UC), 49% Crohn's disease (CD)) patients received biological treatment for the first time. Cumulative use of biologicals increased from 5.0% to 10.8% among UC and 8.9%-14.5% among CD patients. Infliximab remained the most-prescribed first-line biological for UC and CD. Treatment persistence was 44.3% and 16.9% after 1 and 3 years in UC, compared to 59.9% and 33.6% in CD patients. Overall, 32.8% of patients switched to a second biological. Surgery rates decreased in both UC (P = 0.015) and CD (P = 0.008) patients and remained significant for UC in the Cox regression model (P = 0.002). Outpatient and surgical costs also fell among both UC and CD patients. CONCLUSIONS Persistence rates for first-line biologicals among IBD patients were low and one-third switched treatment. Surgery rates and direct costs decreased over time, but whether this is related to the use of biologicals has yet to be determined.
Collapse
Affiliation(s)
- Mirabella Zhao
- Gastro Unit, Medical Division, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark.,Copenhagen Center for Inflammatory Bowel Disease in Children, Adolescents and Adults, Hvidvore Hospital, University of Copenhagen, Hvidovre, Denmark
| | - Morten Sall Jensen
- VIVE - The Danish Centre for Social Science Research, Copenhagen, Denmark
| | - Torben Knudsen
- Department of Gastroenterology, Hospital of South West Denmark, Esbjerg, Denmark
| | - Jens Kelsen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus N, Denmark
| | - Mehmet Coskun
- Takeda Pharma A/S, Medical Affairs, Vallensbaek Strand, Denmark
| | - Jakob Kjellberg
- VIVE - The Danish Centre for Social Science Research, Copenhagen, Denmark
| | - Johan Burisch
- Gastro Unit, Medical Division, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark.,Copenhagen Center for Inflammatory Bowel Disease in Children, Adolescents and Adults, Hvidvore Hospital, University of Copenhagen, Hvidovre, Denmark
| |
Collapse
|
9
|
Tetangco EP, Stein AC. Medical Treatment of Intestinal Crohn's disease. Seminars in Colon and Rectal Surgery 2022. [DOI: 10.1016/j.scrs.2022.100862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
10
|
Hanzel J, Ma C, Zou G, Singh S, Dulai PS, Feagan BG, D'Haens GR, Sandborn WJ, Jairath V. Early Combined Immunosuppression Reduces Complications in Long-standing Crohn's Disease: A Post Hoc Analysis of REACT. Clin Gastroenterol Hepatol 2022; 20:236-238. [PMID: 33346141 DOI: 10.1016/j.cgh.2020.12.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 12/10/2020] [Accepted: 12/15/2020] [Indexed: 02/07/2023]
Abstract
Crohn's disease (CD) can lead to bowel damage, stricturing, and obstruction thereby resulting in surgery and hospitalization. The Randomized Evaluation of an Algorithm for Crohn's Treatment (REACT) trial showed that early combined immunosuppression (ECI) with symptom-based treatment escalation for 24 months resulted in a lower risk of surgery, hospitalization, or CD-related complications compared with conventional management (CM).1 Treatment earlier in the disease course may be associated with reduced risk of complications compared with later initiation, although data are sparse.2 We performed a post hoc analysis of REACT to evaluate the impact of baseline disease duration on surgery, hospitalization, or CD-related complications in patients treated with ECI compared with CM.
Collapse
Affiliation(s)
- Jurij Hanzel
- Department of Gastroenterology, UMC Ljubljana, University of Ljubljana, Ljubljana, Slovenia; Alimentiv Inc, London, Ontario, Canada
| | - Christopher Ma
- Alimentiv Inc, London, Ontario, Canada; Division of Gastroenterology and Hepatology, University of Calgary, Calgary, Alberta, Canada
| | - Guangyong Zou
- Alimentiv Inc, London, Ontario, Canada; Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada
| | - Siddharth Singh
- Division of Gastroenterology, University of California, San Diego, La Jolla, California; Division of Biomedical Informatics, University of California, San Diego, La Jolla, California
| | - Parambir S Dulai
- Division of Gastroenterology, University of California, San Diego, La Jolla, California
| | - Brian G Feagan
- Alimentiv Inc, London, Ontario, Canada; Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada; Division of Gastroenterology, Western University, London, Ontario, Canada
| | - Geert R D'Haens
- Alimentiv Inc, London, Ontario, Canada; Department of Gastroenterology and Hepatology, Amsterdam University Medical Centre, Academic Medical Centre, Amsterdam, Netherlands
| | - William J Sandborn
- Alimentiv Inc, London, Ontario, Canada; Division of Gastroenterology, University of California, San Diego, La Jolla, California
| | - Vipul Jairath
- Alimentiv Inc, London, Ontario, Canada; Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada; Division of Gastroenterology, Western University, London, Ontario, Canada.
| |
Collapse
|
11
|
Kumei S, Sakurai T, So S, Itaba S, Akiho H, Nakamura S, Kim H, Yamasaki M, Takatsu N, Maekawa R, Sakemi R, Watanabe T, Shibata M, Kume K, Yoshikawa I, Takaki Y, Harada M. Impact of the Concomitant Use of Immunomodulator and a Lower Week 8 Partial Mayo Score on the Persistence of Adalimumab in Refractory Ulcerative Colitis. Intern Med 2021; 60:3849-3856. [PMID: 34121007 PMCID: PMC8758447 DOI: 10.2169/internalmedicine.7279-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective Real-world data of adalimumab (ADA) in the treatment of ulcerative colitis (UC) are scarce. We aimed to study the ADA response rates and predictors of response in UC treatment. Methods This observational, prospective and multi-center study assessed the clinical outcome of refractory UC patients treated with ADA who previously had an inadequate response to either conventional therapies or other anti-TNF antibodies or tacrolimus. The primary endpoint was the proportion of UC patients achieving a clinical response and remission at 8 and 52 weeks. We also evaluated the parameters which were associated with a clinical response at 8 and 52 weeks. Results A total of 35 patients were enrolled from 11 centers. The clinical responses at 8 and 52 weeks were 60.0% and 51.4%, respectively. The clinical remission rates at 8 and 52 weeks were 45.7% and 48.6%, respectively. Positive predictors for week 52 response were combination of ADA with immunomodulator (IM) (OR: 27.229; 95% CI; 1.897-390.76; p=0.015) and a week 8 lower partial Mayo score (OR: 0.406; 95% CI; 0.204-0.809; p=0.010). A receiver operation characteristic curve analysis revealed the optimal week 8 partial Mayo score to be 2.5, therefore a partial Mayo score of ≤2 was a positive predictor for the continuation of ADA. No malignancy or death occurred during this study. Conclusion ADA was effective for inducing and maintaining both a clinical response and remission in patients with refractory UC. It remains possible that the concomitant use of IM and a week 8 partial Mayo score of ≤2 may predict the long-term response of ADA.
Collapse
Affiliation(s)
- Shinsuke Kumei
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | | | - Suketo So
- Department of Gastroenterology, Tobata Kyoritsu Hospital, Japan
| | - Soichi Itaba
- Department of Gastroenterology, Kyushu Rosai Hospital, Japan
| | - Hirotada Akiho
- Department of Gastroenterology, Kitakyushu Municipal Medical Center, Japan
| | - Shigeo Nakamura
- Department of Gastroenterology, Steel Memorial Yawata Hospital, Japan
| | - Hyonji Kim
- Department of Gastroenterology, JCHO Fukuoka Yutaka Central Hospital, Japan
| | | | - Noritaka Takatsu
- Department of Gastroenterology, Tagawa Municipal Hospital, Japan
- Department of Gastroenterology, Fukuoka University Chikushi Hospital, Japan
| | - Ryuichiro Maekawa
- Department of Gastroenterology, Tagawa Social Insurance Hospital, Japan
| | - Ryosuke Sakemi
- Department of Gastroenterology, Tobata Kyoritsu Hospital, Japan
| | - Tatsuyuki Watanabe
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Michihiko Shibata
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Keiichiro Kume
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Ichiro Yoshikawa
- Department of Endoscopy, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Yasuhiro Takaki
- Department of Gastroenterology, Ashiya Central Hospital, Japan
| | - Masaru Harada
- Third Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| |
Collapse
|
12
|
Hashash JG, Fadel CGA, Rimmani HH, Sharara AI. Biologic monotherapy versus combination therapy with immunomodulators in the induction and maintenance of remission of Crohn's disease and ulcerative colitis. Ann Gastroenterol 2021; 34:612-624. [PMID: 34475731 PMCID: PMC8375659 DOI: 10.20524/aog.2021.0645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 03/12/2021] [Indexed: 12/19/2022] Open
Abstract
Despite current guidelines, the optimal treatment of patients with inflammatory bowel disease (IBD) remains challenging. The available medications are not without risk and there is not a single correct treatment regimen for every patient. Personalizing treatment and selecting the most appropriate therapy is crucial for optimal response, remission, quality of life, and healthcare utilization. Biologics, especially anti-tumor necrosis factor-α medications, are widely used in the induction and maintenance of disease remission in patients with IBD. Similarly, immunomodulators, including thiopurines and methotrexate, are traditionally popular for the maintenance of remission. In this manuscript, we review the use of biologic monotherapy vs. combination therapy with immunomodulators for the treatment of ulcerative colitis and Crohn’s disease. We examine overall remission, immunogenicity and adverse effects, mainly serious infections and malignancy, in an effort to help guide treatment decisions and weigh the risks and benefits of biologic monotherapy vs. combination therapy.
Collapse
Affiliation(s)
- Jana G Hashash
- Division of Gastroenterology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut (Jana G. Hashash, Hussein H. Rimmani, Ala I. Sharara)
| | - Carla G Abou Fadel
- Division of Gastroenterology, Bellevue Medical Center, Mansourieh (Carla G. Abou Fadel), Lebanon
| | - Hussein H Rimmani
- Division of Gastroenterology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut (Jana G. Hashash, Hussein H. Rimmani, Ala I. Sharara)
| | - Ala I Sharara
- Division of Gastroenterology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut (Jana G. Hashash, Hussein H. Rimmani, Ala I. Sharara)
| |
Collapse
|
13
|
Singh S, Proctor D, Scott FI, Falck-Ytter Y, Feuerstein JD. AGA Technical Review on the Medical Management of Moderate to Severe Luminal and Perianal Fistulizing Crohn's Disease. Gastroenterology 2021; 160:2512-2556.e9. [PMID: 34051985 PMCID: PMC8986997 DOI: 10.1053/j.gastro.2021.04.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The incidence and prevalence of Crohn's disease (CD) is rising globally. Patients with moderate to severe CD are at high risk for needing surgery and hospitalization and for developing disease-related complications, corticosteroid dependence, and serious infections. Optimal management of outpatients with moderate to severe luminal and/or fistulizing (including perianal) CD often requires the use of immunomodulator (thiopurines, methotrexate) and/or biologic therapies, including tumor necrosis factor-α antagonists, vedolizumab, or ustekinumab, either as monotherapy or in combination (with immunomodulators) to mitigate these risks. Decisions about optimal drug therapy in moderate to severe CD are complex, with limited guidance on comparative efficacy and safety of different treatments, leading to considerable practice variability. Since the last iteration of these guidelines published in 2013, significant advances have been made in the field, including the regulatory approval of 2 new biologic agents, vedolizumab and ustekinumab. Therefore, the American Gastroenterological Association prioritized updating clinical guidelines on this topic. To inform the clinical guidelines, this technical review was completed in accordance with the GRADE (Grading of Recommendations Assessment, Development and Evaluation) framework. The review addressed the following focused questions (in adult outpatients with moderate to severe luminal CD): overall and comparative efficacy of different medications for induction and maintenance of remission in patients with or without prior exposure to tumor necrosis factor-α antagonists, comparative efficacy and safety of biologic monotherapy vs combination therapy with immunomodulators, comparative efficacy of a top-down (upfront use of biologics and/or immunomodulator therapy) vs step-up treatment strategy (acceleration to biologic and/or immunomodulator therapy only after failure of mesalamine), and the role of corticosteroids and mesalamine for induction and/or maintenance of remission. Finally, in adult outpatients with moderate to severe fistulizing CD, this review addressed the efficacy of pharmacologic interventions for achieving fistula and the role of adjunctive antibiotics without clear evidence of active infection.
Collapse
Affiliation(s)
- Siddharth Singh
- Division of Gastroenterology and Division of Biomedical Informatics, Department of Medicine, University of California, San Diego, La Jolla, CA
| | - Deborah Proctor
- Division of Gastroenterology, Department of Medicine, Yale School of Medicine, New Haven, CT
| | - Frank I. Scott
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Yngve Falck-Ytter
- Division of Gastroenterology and Liver Disease, Case Western Reserve University, Cleveland, Ohio CA
| | - Joseph D. Feuerstein
- Division of Gastroenterology and Center for Inflammatory Bowel Diseases, Beth Israel Deaconess Medical Center, Boston, MA
| |
Collapse
|
14
|
Privitera G, Pugliese D, Onali S, Petito V, Scaldaferri F, Gasbarrini A, Danese S, Armuzzi A. Combination therapy in inflammatory bowel disease - from traditional immunosuppressors towards the new paradigm of dual targeted therapy. Autoimmun Rev 2021; 20:102832. [PMID: 33866066 DOI: 10.1016/j.autrev.2021.102832] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 02/15/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Combining immunosuppressors has been proposed as a strategy to enhance treatment efficacy in Inflammatory Bowel Disease (IBD). AIM To summarize current evidence on combinations of targeted therapies with traditional immunosuppressors or with other targeted therapies. METHODS A literature search on PubMed and Medline databases was performed to identify relevant articles. RESULTS Current evidence supports that the combination of infliximab and thiopurines is more effective than monotherapy with both agents in inducing remission in Crohn's Disease and Ulcerative colitis. Data on other combinations of other biologics and traditional immunosuppressors is lacking or show conflicting results. Vedolizumab seems a potentially effective maintenance regimen after calcineurin inhibitors-based rescue therapy in acute severe ulcerative colitis, as an alternative to thiopurines. Dual Targeted Therapy, which is the combination of 2 targeted therapies, might be a reasonable choice in patients with concomitant IBD and extraintestinal manifestations, or in patients with medical-refractory IBD who lack valid alternatives. Combinations with thiopurines are associated with an increased risk of infections and lymphoma. Data on other combinations is scarcer, but no specific safety issue has emerged so far. CONCLUSIONS Combination therapies seem to be effective in selected patients, with an overall acceptable safety profile.
Collapse
Affiliation(s)
- Giuseppe Privitera
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Daniela Pugliese
- CEMAD - IBD UNIT - Unità Operativa Complessa di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy.
| | - Sara Onali
- Gastroenterology Unit, University Hospital of Cagliari, Department of Science and Public Health, University of Cagliari, Italy
| | - Valentina Petito
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy.
| | - Franco Scaldaferri
- CEMAD - IBD UNIT - Unità Operativa Complessa di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy.
| | - Antonio Gasbarrini
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy; CEMAD - IBD UNIT - Unità Operativa Complessa di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy.
| | - Silvio Danese
- IBD Center, Department of Gastroenterology, Humanitas Clinical and Research Center, Istituto di Ricovero e Cura a Carattere Scientifico, Rozzano, Milan 20089, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.
| | - Alessandro Armuzzi
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy; CEMAD - IBD UNIT - Unità Operativa Complessa di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy.
| |
Collapse
|
15
|
Lund K, Larsen MD, Knudsen T, Kjeldsen J, Nielsen RG, Mertz Nørgård B. Infliximab, Immunomodulators and Treatment Failures in Paediatric and Adolescent Patients with Crohn's Disease: a Nationwide Cohort Study. J Crohns Colitis 2021; 15:575-582. [PMID: 32926166 DOI: 10.1093/ecco-jcc/jjaa188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS In paediatric patients with Crohn's disease, the role of combination therapy, infliximab plus immunomodulators [thiopurine or methotrexate], is debated and data are sparse. We examined whether infliximab plus immunomodulators, compared to infliximab therapy alone, reduces the risk of treatment failure measured by intestinal surgery or switching type of anti-tumour necrosis factor [TNF] α agent within 24 months. DESIGN Using Danish registries, we identified patients with Crohn's disease, aged ≤ 20 years at the time of the first infliximab treatment, and retrieved data on their co-medications. We used Cox regression models to examine surgery or switching type of anti-TNFα agent from January 1, 2003 to December 31, 2015. RESULTS We included 581 patients. The 2-year cumulative percentage of surgery was 8.5% among patients receiving combination therapy and 14.5% in those receiving infliximab alone. The adjusted 2-year hazard ratio [HR] of surgeries was 0.53 (95% confidence interval [CI] 0.32-0.88) in patients receiving combination therapy, compared to patients receiving infliximab alone. When examining a switch of anti-TNFα we included 536 patients. Within 2 years, 18.3% experienced a switch among patients receiving combination therapy and 24.8% in patients treated with infliximab alone, corresponding to an adjusted HR of 0.66 [95% CI 0.45-0.97] in patients receiving combination therapy. CONCLUSIONS The HR of intestinal surgeries and the risk of a switch to another anti-TNFα was reduced in paediatric and adolescent patients receiving combination therapy, compared to patients receiving only infliximab. These results suggest a benefit for infliximab therapy combined with immunomodulators, but these need to be confirmed in data with additional clinical information.
Collapse
Affiliation(s)
- Ken Lund
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark.,Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Department of Regional Health Science, Center Southwest Jutland, University of Southern Denmark, Esbjerg, Denmark
| | - Michael Due Larsen
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark.,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Torben Knudsen
- Department of Medicine, Hospital of Southwest Jutland, Esbjerg, Denmark.,Department of Regional Health Science, Center Southwest Jutland, University of Southern Denmark, Esbjerg, Denmark
| | - Jens Kjeldsen
- Department of Medical Gastroenterology S, Odense University Hospital, Odense, Denmark.,Research Unit of Medical Gastroenterology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Rasmus Gaardskær Nielsen
- Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark.,Research Unit of Pediatrics, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Bente Mertz Nørgård
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark.,Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| |
Collapse
|
16
|
Targownik LE, Benchimol EI, Bernstein CN, Singh H, Tennakoon A, Zubieta AA, Coward S, Jones J, Kaplan GG, Kuenzig ME, Murthy SK, Nguyen GC, Peña-Sánchez JN. Combined Biologic and Immunomodulatory Therapy is Superior to Monotherapy for Decreasing the Risk of Inflammatory Bowel Disease-Related Complications. J Crohns Colitis 2020; 14:1354-1363. [PMID: 32648579 DOI: 10.1093/ecco-jcc/jjaa050] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS The combination of infliximab and azathioprine is more efficacious than either therapy alone for Crohn's disease [CD] and ulcerative colitis [UC]. However, it is uncertain whether these benefits extend to real-world clinical practice and to other combinations of biologics and immunomodulators. METHODS We collected health administrative data from four Canadian provinces representing 78 413 patients with inflammatory bowel disease [IBD] of whom 11 244 were prescribed anti-tumour necrosis factor [anti-TNF] agents. The outcome of interest was the first occurrence of treatment failure: an unplanned IBD-related hospitalization, IBD-related resective surgery, new/recurrent corticosteroid use or anti-TNF switch. Multivariable Cox proportional hazards modelling was used to assess the association between the outcome of interest and receiving combination therapy vs anti-TNF monotherapy. Multivariable regression models were used to assess the impact of choice of immunomodulator or biologic on reaching the composite outcome, and random effects generic inverse variance meta-analysis of deterministically linked data was used to pool the results from the four provinces to obtain aggregate estimates of effect. RESULTS In comparison with anti-TNF monotherapy, combination therapy was associated with a significant decrease in treatment ineffectiveness for both CD and UC (CD: adjusted hazard ratio [aHR] 0.77, 95% confidence interval [CI] 0.66-0.90; UC: aHR 0.72, 95% CI 0.62-0.84). Combination therapy was equally effective for adalimumab and infliximab in CD. In UC azathioprine was superior to methotrexate as the immunomodulatory agent (aHR = 1.52 [95% CI 1.02-2.28]) but not CD (aHR = 1.22 [95% CI 0.96-1.54]). CONCLUSION In an analysis of a database of real-world patients with IBD, combination therapy decreased the likelihood of treatment failure in both CD and UC.
Collapse
Affiliation(s)
- Laura E Targownik
- Section of Gastroenterology, Division of Internal Medicine, Department of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.,Mount Sinai Hospital Inflammatory Bowel Disease Centre, University of Toronto, Toronto, Ontario, Canada
| | - Eric I Benchimol
- Children's Hospital of Eastern Ontario IBD Centre, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, Ottawa, Canada.,Department of Pediatrics and School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada.,ICES, Toronto, Canada
| | - Charles N Bernstein
- Section of Gastroenterology, Division of Internal Medicine, Department of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Harminder Singh
- Section of Gastroenterology, Division of Internal Medicine, Department of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.,Department of Community Health Sciences, Department of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Aruni Tennakoon
- Section of Gastroenterology, Division of Internal Medicine, Department of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Antonio Aviña Zubieta
- Arthritis Research Centre, University of British Columbia, Vancouver British Columbia, Canada
| | - Stephanie Coward
- Department of Medicine and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Jennifer Jones
- Department of Internal Medicine, Dalhousie University, Halifax, NS, Canada
| | - Gilaad G Kaplan
- Department of Medicine and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | | | - Sanjay K Murthy
- The Ottawa Hospital IBD Centre, University of Ottawa and Ottawa Hospital Research Institute, Ottawa, Canada
| | - Geoffrey C Nguyen
- Mount Sinai Hospital Inflammatory Bowel Disease Centre, University of Toronto, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Juan Nicolás Peña-Sánchez
- Department of Community Health & Epidemiology, College of Medicine, University of Saskatchewan, Saskatoon, Canada
| |
Collapse
|
17
|
Singh S, Peyrin-Biroulet L, Ananthakrishnan A. Management of Inflammatory Bowel Diseases: Clinical Perspectives. Clin Gastroenterol Hepatol 2020; 18:1249-1251. [PMID: 32057974 DOI: 10.1016/j.cgh.2020.01.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 01/21/2020] [Accepted: 01/29/2020] [Indexed: 02/07/2023]
Affiliation(s)
- Siddharth Singh
- Division of Gastroenterology, University of California San Diego, La Jolla, California.
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology and Inserm U1256 NGERE, Nancy University Hospital, Lorraine University, Lorraine, France
| | | |
Collapse
|
18
|
Sandberg K, Yarger E, Saeed S. Updates in diagnosis and management of inflammatory bowel disease. Curr Probl Pediatr Adolesc Health Care 2020; 50:100785. [PMID: 32402535 DOI: 10.1016/j.cppeds.2020.100785] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Indexed: 12/18/2022]
Abstract
Worldwide incidence of inflammatory bowel disease (IBD) is stable in developed countries, but rising in developing countries. Presenting symptoms of IBD can be highly variable. New imaging modalities, a greater armamentarium of therapeutic options, and a greater understanding of complication risks have changed the diagnosis and management of pediatric inflammatory bowel diseases. Effective teamwork among those who care for pediatric patients with IBD minimizes complications and maximizes desired outcomes.
Collapse
|
19
|
Frasca JD, Cheifetz AS. The cost and benefit of anti-TNF therapy from a population perspective-for what it's worth. Ann Transl Med 2020; 7:S388. [PMID: 32016106 DOI: 10.21037/atm.2019.12.86] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Adam S Cheifetz
- Center for Inflammatory Bowel Disease, Beth Israel Deaconess Medical Center, Boston, MA, USA
| |
Collapse
|
20
|
Kobayashi T, Udagawa E, Uda A, Hibi T, Hisamatsu T. Impact of immunomodulator use on treatment persistence in patients with ulcerative colitis: A claims database analysis. J Gastroenterol Hepatol 2020; 35:225-232. [PMID: 31397010 PMCID: PMC7027773 DOI: 10.1111/jgh.14825] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/18/2019] [Accepted: 08/03/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIM It is unclear how adding an anti-tumor necrosis factor alpha agent to immunomodulator (IM) treatment, as a step-up strategy, affects long-term outcomes in ulcerative colitis. This retrospective study investigated persistence associated with biologic anti-tumor necrosis factor alpha agents combined with IMs versus biologic monotherapy in patients with ulcerative colitis. METHODS This was a longitudinal cohort study of patients in the Japan Medical Data Center claims database who had been newly prescribed infliximab or adalimumab as induction (completed) and maintenance (2010-2016). Biologic persistence (i.e. no switch/discontinuation during maintenance) was compared among patients prescribed biologic monotherapy (Bio) and those prescribed a biologic combined with an IM, as step-up (Bio + prior IM) or simultaneously (Bio + IM). RESULTS Three hundred and sixty-nine eligible patients were analyzed (233, 78, and 58 in the Bio, Bio + prior IM, and Bio + IM subgroups, respectively). Multivariate analysis showed a lower probability of nonpersistence during maintenance for infliximab-treated patients in the Bio + prior IM versus Bio subgroup (hazard ratio: 0.53; 95% confidence interval: 0.29-0.99; P = 0.045). No such effect was seen in adalimumab-treated patients (P = 0.222) or in the overall population (P = 0.398). The probability of nonpersistence during maintenance in the Bio + IM subgroup was not significantly different from that in the Bio subgroup in either the biologic subpopulation or in the overall population. CONCLUSIONS Adding infliximab to an existing IM results in a lower probability of nonpersistence compared with infliximab monotherapy in ulcerative colitis patients. This effect is not seen in adalimumab-treated patients.
Collapse
Affiliation(s)
- Taku Kobayashi
- Center for Advanced IBD Research and TreatmentKitasato University Kitasato Institute HospitalTokyoJapan
| | - Eri Udagawa
- Japan Medical AffairsTakeda Pharmaceutical Company LimitedTokyoJapan
| | - Akihito Uda
- Japan Medical AffairsTakeda Pharmaceutical Company LimitedTokyoJapan
| | - Toshifumi Hibi
- Center for Advanced IBD Research and TreatmentKitasato University Kitasato Institute HospitalTokyoJapan
| | - Tadakazu Hisamatsu
- The Third Department of Internal MedicineKyorin University School of MedicineTokyoJapan
| |
Collapse
|
21
|
Murthy SK, Begum J, Benchimol EI, Bernstein CN, Kaplan GG, McCurdy JD, Singh H, Targownik L, Taljaard M. Introduction of anti-TNF therapy has not yielded expected declines in hospitalisation and intestinal resection rates in inflammatory bowel diseases: a population-based interrupted time series study. Gut 2020; 69:274-282. [PMID: 31196874 PMCID: PMC6984056 DOI: 10.1136/gutjnl-2019-318440] [Citation(s) in RCA: 126] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 04/23/2019] [Accepted: 04/23/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVES To better understand the real-world impact of biologic therapy in persons with Crohn's disease (CD) and ulcerative colitis (UC), we evaluated the effect of marketplace introduction of infliximab on the population rates of hospitalisations and surgeries and public payer drug costs. DESIGN We used health administrative data to study adult persons with CD and UC living in Ontario, Canada between 1995 and 2012. We used an interrupted time series design with segmented regression analysis to evaluate the impact of infliximab introduction on the rates of IBD-related hospitalisations, intestinal resections and public payer drug costs over 10 years among patients with CD and 5 years among patients with UC, allowing for a 1-year transition. RESULTS Relative to what would have been expected in the absence of infliximab, marketplace introduction of infliximab did not produce significant declines in the rates of CD-related hospitalisations (OR at the last observation quarter 1.06, 95% CI 0.811 to 1.39) or intestinal resections (OR 1.10, 95% CI 0.810 to 1.50), or in the rates of UC-related hospitalisations (OR 1.22, 95% CI 1.07 to 1.39) or colectomies (OR 0.933, 95% CI 0.54 to 1.61). The findings were similar among infliximab users, except that hospitalisation rates declined substantially among UC patients following marketplace introduction of infliximab (OR 0.515, 95% CI 0.342 to 0.777). There was a threefold rise over expected trends in public payer drug cost among patients with CD following infliximab introduction (OR 2.98,95% CI 2.29 to 3.86), suggesting robust market penetration in this group, but no significant change among patients with UC (OR 1.06, 95% CI 0.955 to 1.18). CONCLUSIONS Marketplace introduction of infliximab has not yielded anticipated reductions in the population rates of IBD-related hospitalisations or intestinal resections, despite robust market penetration among patients with CD. Misguided use of infliximab in CD patients and underuse of infliximab in UC patients may largely explain our study findings.
Collapse
Affiliation(s)
- Sanjay K Murthy
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada,Division of Gastroenterology, The Ottawa Hospital IBD Centre, Ottawa, Ontario, Canada,Clinical Epidemiology Program, OttawaHospital Research Institute, Ottawa, Ontario, Canada,School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Eric I Benchimol
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada,ICES uOttawa, Ottawa, Ontario, Canada,Children’sHospital of Eastern Ontario (CHEO) Inflammatory Bowel Disease Centre, Divisionof Gastroenterology, Hepatology and Nutrition, Ottawa, Ontario, Canada,Department of Pediatrics, University of Ottawa, Ottawa, Ontario, Canada,CHEOResearch Institute, Ottawa, Ontario, Canada
| | - Charles N Bernstein
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada,Health Sciences Centre Winnipeg, Winnipeg, Manitoba, Canada
| | - Gilaad G Kaplan
- Departments of Medicine and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada,Foothills Medical Centre, Division of Gastroenterology and Hepatology, Calgary, Alberta, Canada
| | - Jeffrey D McCurdy
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada,Division of Gastroenterology, The Ottawa Hospital IBD Centre, Ottawa, Ontario, Canada,Clinical Epidemiology Program, OttawaHospital Research Institute, Ottawa, Ontario, Canada
| | - Harminder Singh
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada,Health Sciences Centre Winnipeg, Winnipeg, Manitoba, Canada
| | - Laura Targownik
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada,Health Sciences Centre Winnipeg, Winnipeg, Manitoba, Canada
| | - Monica Taljaard
- Clinical Epidemiology Program, OttawaHospital Research Institute, Ottawa, Ontario, Canada,School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| |
Collapse
|
22
|
Scott FI, Singh S. Bridging Gaps in Evidence-based Clinical Practice in Inflammatory Bowel Diseases: Observational Comparative Effectiveness Research for the Win. Clin Gastroenterol Hepatol 2019; 17:1726-1728. [PMID: 30630101 PMCID: PMC6612465 DOI: 10.1016/j.cgh.2018.12.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 12/28/2018] [Accepted: 12/28/2018] [Indexed: 02/07/2023]
Affiliation(s)
- Frank I. Scott
- Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Siddharth Singh
- Division of Gastroenterology, University of California San Diego, La Jolla, California
- Division of Biomedical Informatics, University of California San Diego, La Jolla, California
| |
Collapse
|