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Del Gaudio A, Di Vincenzo F, Petito V, Giustiniani MC, Gasbarrini A, Scaldaferri F, Lopetuso LR. Focus on Immune Checkpoint Inhibitors-related Intestinal Inflammation: From Pathogenesis to Therapeutical Approach. Inflamm Bowel Dis 2024; 30:1018-1031. [PMID: 37801695 DOI: 10.1093/ibd/izad229] [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: 05/25/2023] [Indexed: 10/08/2023]
Abstract
Recently, antitumor immunotherapies have witnessed a breakthrough with the emergence of immune checkpoint inhibitors (ICIs) including programmed cell death-1 (PD-1), programmed cell death-ligand 1 (PD-L1), and cytotoxic T lymphocyte antigen 4 (CTLA-4) inhibitors. Unfortunately, the use of ICIs has also led to the advent of a novel class of adverse events that differ from those of classic chemotherapeutics and are more reminiscent of autoimmune diseases, the immune-related adverse events (IRAEs). Herein, we performed an insight of the main IRAEs associated with ICIs, focusing on gastroenterological IRAEs and specifically on checkpoint inhibitor colitis, which represents the most widely reported IRAE to date. We comprehensively dissected the current evidence regarding pathogenesis, diagnosis, and management of ICIs-induced colitis, touching upon also on innovative therapies.
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Affiliation(s)
- Angelo Del Gaudio
- UOS Malattie Infiammatorie Croniche Intestinali, Centro di Malattie dell'Apparato Digerente (CEMAD), Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
- UOC di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
| | - Federica Di Vincenzo
- UOS Malattie Infiammatorie Croniche Intestinali, Centro di Malattie dell'Apparato Digerente (CEMAD), Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
- UOC di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
| | - Valentina Petito
- UOS Malattie Infiammatorie Croniche Intestinali, Centro di Malattie dell'Apparato Digerente (CEMAD), Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
- UOC di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
| | | | - Antonio Gasbarrini
- UOS Malattie Infiammatorie Croniche Intestinali, Centro di Malattie dell'Apparato Digerente (CEMAD), Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
- UOC di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
| | - Franco Scaldaferri
- UOS Malattie Infiammatorie Croniche Intestinali, Centro di Malattie dell'Apparato Digerente (CEMAD), Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
- UOC di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
| | - Loris Riccardo Lopetuso
- UOS Malattie Infiammatorie Croniche Intestinali, Centro di Malattie dell'Apparato Digerente (CEMAD), Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
- UOC di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Roma, 00168, Italy
- Department of Medicine and Ageing Sciences, G. d'Annunzio University of Chieti-Pescara, Chieti, 66100, Italy
- Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, 66100, Italy
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Townsend MJ, Benque IJ, Li M, Grover S. Review article: Contemporary management of gastrointestinal, pancreatic and hepatic toxicities of immune checkpoint inhibitors. Aliment Pharmacol Ther 2024; 59:1350-1365. [PMID: 38590108 DOI: 10.1111/apt.17980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/13/2023] [Accepted: 03/21/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Immune checkpoint inhibitors (ICIs) are effective oncologic agents which frequently cause immune-related adverse events (irAEs) which can impact multiple organ systems. Onco-Gastroenterology is a novel and emerging subspecialty within gastroenterology focused on cancer treatment-related complications. Gastroenterologists must be prepared to identify and manage diverse immune-mediated toxicities including enterocolitis, hepatitis, pancreatitis and other ICI-induced toxicities. AIM To provide a narrative review of the epidemiology, diagnostic evaluation and management of checkpoint inhibitor-induced gastrointestinal and hepatic toxicities. METHODS We searched Cochrane and PubMed databases for articles published through August 2023. RESULTS Gastrointestinal and hepatic irAEs include most commonly enterocolitis and hepatitis, but also pancreatitis, oesophagitis, gastritis, motility disorders (gastroparesis) and other rarer toxicities. Guidelines from the National Comprehensive Cancer Network, American Society of Clinical Oncology and European Society for Medical Oncology, in combination with emerging cohort and clinical trial data, offer strategies for management of ICI toxicities. Evaluation of irAEs severity by formal classification and clinical stability, and a thorough workup for alternative etiologies which may clinically mimic irAEs underlie initial management. Treatments include corticosteroids, biologics and other immunosuppressive agents plus supportive care; decisions on dosing, timing and choice of steroid adjuncts and potential for subsequent checkpoint inhibitor dosing are nuanced and toxicity-specific. CONCLUSIONS Expanding clinical trial and cohort data have clarified the epidemiology and clinical characteristics of gastrointestinal, pancreatic and hepatic toxicities of ICIs. Guidelines, though valuable, remain based principally on retrospective cohort data. Quality prospective, controlled studies may refine algorithms for treatment and potential immunotherapy rechallenge.
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Affiliation(s)
- Matthew J Townsend
- Department of Medicine, Duke University Hospital, Durham, North Carolina, USA
| | - Isaac J Benque
- University of California San Francisco School of Medicine, San Francisco, California, USA
| | - Michael Li
- University of California San Francisco School of Medicine, San Francisco, California, USA
- Division of Gastroenterology, University of California San Francisco Medical Center, San Francisco, California, USA
| | - Shilpa Grover
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
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3
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Tomm NK, Szczepanski JM, Fang JM, Choi WT, Xue Y, Setia N, Karamchandani DM, Cheng JY, Westerhoff M. Follow-up biopsies in gastrointestinal immune checkpoint inhibitor toxicity may show markedly different inflammatory patterns than initial injury. Hum Pathol 2024; 148:60-65. [PMID: 38734079 DOI: 10.1016/j.humpath.2024.05.001] [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: 02/28/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
Colitis is a common manifestation of immune checkpoint inhibitor (ICI) toxicity and can present with varied histologic patterns of inflammation, some of which have been shown to be associated with specific ICI drug types. Although the histologic features of ICI colitis seen at the time of diagnosis have been described, there have been few reports following these patients over time. We evaluated initial and follow-up biopsies in 30 patients with ICI colitis and found that 37% of patients developed a different pattern of injury on follow-up biopsy compared to the initial biopsy. Patients with a different inflammatory pattern were more likely to have restarted ICI therapy before their follow-up biopsy (64%) compared to those without a change in inflammatory pattern (11%; P < 0.01). The majority of these patients had changed ICI drug types (86%). Additionally, many cases changed to an inflammatory bowel disease (IBD)-like pattern (36%), raising a question of de novo IBD. However, all of our patients with an IBD-like pattern experienced sustained resolution of symptoms without steroids or other immunosuppressive medications following discontinuation of ICI therapy, consistent with a diagnosis of ICI toxicity. Our findings suggest that follow-up biopsies in patients with ICI colitis may show a different histology and that this does not necessarily warrant a change in the histologic diagnosis to another disease.
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Affiliation(s)
- Nicole K Tomm
- Department of Pathology, University of Michigan, 2800 Plymouth Road, NCRC Bldg 35, Ann Arbor, MI, 48109, USA.
| | - Julianne M Szczepanski
- Department of Pathology, University of Michigan, 2800 Plymouth Road, NCRC Bldg 35, Ann Arbor, MI, 48109, USA
| | - Jiayun M Fang
- Department of Pathology, University of Michigan, 2800 Plymouth Road, NCRC Bldg 35, Ann Arbor, MI, 48109, USA
| | - Won-Tak Choi
- Department of Pathology, University of California, San Francisco, 505 Parnassus Avenue, Suite M590, Box 0511, San Francisco, CA, 94143, USA
| | - Yue Xue
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave., Ward 3-140, Chicago, IL, 60611, USA
| | - Namrata Setia
- Department of Pathology, University of Chicago, 5841 S. Maryland Ave., MC3083 - Rm. S329, Chicago, IL, 60637, USA
| | - Dipti M Karamchandani
- Department of Pathology, UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Jerome Y Cheng
- Department of Pathology, University of Michigan, 2800 Plymouth Road, NCRC Bldg 35, Ann Arbor, MI, 48109, USA
| | - Maria Westerhoff
- Department of Pathology, University of Michigan, 2800 Plymouth Road, NCRC Bldg 35, Ann Arbor, MI, 48109, USA
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Gómez Escudero O. Enterocolitis and other immunotherapy and targeted therapy-related gastrointestinal manifestations: A review for gastroenterologist. REVISTA DE GASTROENTEROLOGIA DE MEXICO (ENGLISH) 2024; 89:89-105. [PMID: 38485558 DOI: 10.1016/j.rgmxen.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 11/08/2023] [Indexed: 04/20/2024]
Abstract
New oncologic treatments, particularly immunotherapy (IT), have revolutionized the treatment of advanced-stage malignant tumors. Immune checkpoint inhibitors are the main form of IT and act by increasing T cell activity and the organism's immune response against neoplastic cells. Targeted therapy is another form of IT that acts by inhibiting oncogenes or inflammation signaling and tumor angiogenesis pathways. However, these mechanisms of tumor destruction can interfere with the host's immune self-tolerance or with the mechanisms of epithelial tissue repair and predispose to immune system-mediated adverse events that can affect multiple organs, including the digestive tract. The gastrointestinal manifestations of damage caused by IT can range from low-grade mucositis to ulceration, and in some cases, necrosis and perforation. Any part of the gastrointestinal tract can be affected, but there is greater involvement of the small bowel and colon, with a pattern similar to that seen in inflammatory bowel disease. The most common clinical manifestation is chronic diarrhea. The differential diagnosis includes enteropathogenic infections, especially those caused by opportunistic microorganisms; adverse drug reactions; and other inflammatory and malabsorption disorders. Treatment is guided by damage severity. Mild cases can be treated with antidiarrheals and rehydration in the outpatient setting; moderate cases with hospitalization, systemic steroids, and temporary suspension of IT; and severe cases with immunosuppressants or biologic agents and definitive suspension of IT.
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Affiliation(s)
- O Gómez Escudero
- Clínica de Gastroenterología, Endoscopia Digestiva y Motilidad Gastrointestinal «Endoneurogastro», Hospital Ángeles, Puebla, Mexico.
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5
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Mitchell JM, Karamchandani DM. Histopathologic Manifestations of Immune Checkpoint Inhibitor Therapy-Associated Gastrointestinal Tract Injury: A Practical Review. Surg Pathol Clin 2023; 16:703-718. [PMID: 37863561 DOI: 10.1016/j.path.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
Immune checkpoint inhibitors have revolutionized the management of many advanced cancers by producing robust remissions. They mostly target two immune regulatory pathways: cytotoxic T lymphocyte antigen-4 and programmed death-1 or its ligand. However, a flip side is the immune-related adverse events (irAEs) commonly affecting the gastrointestinal (GI) tract that can cause treatment interruptions or discontinuation. This practical review discusses the clinical and histopathologic findings of irAEs encountered in the luminal GI tract, along with histopathologic differentials that can mimic varied inflammatory, infectious, or other medication-associated etiologies and the importance of clinico-pathologic correlation for an accurate diagnosis.
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Affiliation(s)
- James Michael Mitchell
- Department of Pathology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA. https://twitter.com/GIJamesMD
| | - Dipti M Karamchandani
- Department of Pathology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA.
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Terrin M, Migliorisi G, Dal Buono A, Gabbiadini R, Mastrorocco E, Quadarella A, Repici A, Santoro A, Armuzzi A. Checkpoint Inhibitor-Induced Colitis: From Pathogenesis to Management. Int J Mol Sci 2023; 24:11504. [PMID: 37511260 PMCID: PMC10380448 DOI: 10.3390/ijms241411504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
The advent of immunotherapy, specifically of immune checkpoint inhibitors (ICIs), for the treatment of solid tumors has deeply transformed therapeutic algorithms in medical oncology. Approximately one-third of patients treated with ICIs may de velop immune-related adverse events, and the gastrointestinal tract is often affected by different grades of mucosal inflammation. Checkpoint inhibitors colitis (CIC) presents with watery or bloody diarrhea and, in the case of severe symptoms, requires ICIs discontinuation. The pathogenesis of CIC is multifactorial and still partially unknown: anti-tumor activity that collaterally effects the colonic tissue and the upregulation of specific systemic inflammatory pathways (i.e., CD8+ cytotoxic and CD4+ T lymphocytes) are mainly involved. Many questions remain regarding treatment timing and options, and biological treatment, especially with anti-TNF alpha, can be offered to these patients with the aim of rapidly resuming oncological therapies. CIC shares similar pathogenesis and aspects with inflammatory bowel disease (IBD) and the use of ICI in IBD patients is under evaluation. This review aims to summarize the pathogenetic mechanism underlying CIC and to discuss the current evidenced-based management options, including the role of biological therapy, emphasizing the relevant clinical impact on CIC and the need for prompt recognition and treatment.
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Affiliation(s)
- Maria Terrin
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.); (G.M.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy
| | - Giulia Migliorisi
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.); (G.M.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy
| | - Arianna Dal Buono
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.); (G.M.)
| | - Roberto Gabbiadini
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.); (G.M.)
| | - Elisabetta Mastrorocco
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.); (G.M.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy
| | - Alessandro Quadarella
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.); (G.M.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy
| | - Alessandro Repici
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy
- Division of Gastroenterology and Digestive Endoscopy, Department of Gastroenterology, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy
| | - Armando Santoro
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy
- Medical Oncology and Haematology Unit, Humanitas Cancer Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy
| | - Alessandro Armuzzi
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (M.T.); (G.M.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy
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7
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Wang SJ, Dougan SK, Dougan M. Immune mechanisms of toxicity from checkpoint inhibitors. Trends Cancer 2023; 9:543-553. [PMID: 37117135 PMCID: PMC10330206 DOI: 10.1016/j.trecan.2023.04.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/03/2023] [Accepted: 04/06/2023] [Indexed: 04/30/2023]
Abstract
Immunotherapy has changed the treatment landscape for cancer over the past decade. Inhibitors of the immune checkpoint proteins cytotoxic T lymphocyte antigen (CTLA)-4, programmed death (PD)-1, and PD ligand 1 (PD-L1) can induce durable remissions in a subset of patients with metastatic disease. However, these treatments can be limited by inflammatory toxicities that can affect any organ system in the body and in some cases can be life threatening. Considerable progress has been made in understanding the drivers of these toxicities as well as effective management strategies. Further research into understanding the molecular and cellular mechanisms that drive toxicity will enable better prediction of toxicity and development of optimized therapies for these toxicities that avoid interfering with antitumor immunity. In this review, we discuss our current understanding of the inflammatory toxicities from immune checkpoint inhibitors (ICIs) and propose optimal treatment strategies for these toxicities.
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Affiliation(s)
- S Jennifer Wang
- Department of Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Stephanie K Dougan
- Department of Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Michael Dougan
- Harvard Medical School, Boston, MA, USA; Division of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA.
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Desmedt V, Jauregui-Amezaga A, Fierens L, Aspeslagh S, Dekervel J, Wauters E, Peeters M, Sabino J, Crapé L, Somers M, Hoorens A, Dutré J, Lobatón T. Position statement on the management of the immune checkpoint inhibitor-induced colitis via multidisciplinary modified Delphi consensus. Eur J Cancer 2023; 187:36-57. [PMID: 37116287 DOI: 10.1016/j.ejca.2023.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 02/10/2023] [Accepted: 03/23/2023] [Indexed: 04/30/2023]
Abstract
INTRODUCTION The use of immune checkpoint inhibitors (ICIs) in cancer immunotherapy has shown increased overall survival in a wide range of cancer types with the associated risk of developing severe immune-mediated adverse events, commonly involving the gastrointestinal tract. AIM The aim of this position statement is to provide an updated practice advice to the gastroenterologists and oncologists on the diagnosis and management of ICI-induced gastrointestinal toxicity. METHODOLOGY The evidence reviewed in this paper includes a comprehensive search strategy of English language publications. Consensus was reached using a three-round modified Delphi methodology and approved by the members of the Belgian Inflammatory Bowel Disease Research and Development Group (BIRD), Belgian Society of Medical Oncology (BSMO), Belgian group of Digestive Oncology (BGDO), and Belgian Respiratory Society (BeRS). CONCLUSIONS The management of ICI-induced colitis requires an early multidisciplinary approach. A broad initial assessment is necessary (clinical presentation, laboratory markers, endoscopic and histologic examination) to confirm the diagnosis. Criteria for hospitalisation, management of ICIs, and initial endoscopic assessment are proposed. Even if corticosteroids are still considered the first-line therapy, biologics are recommended as an escalation therapy and as early treatment in patients with high-risk endoscopic findings.
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Affiliation(s)
- Valérie Desmedt
- Department of Gastroenterology and Hepatology, University Hospital Ghent, Belgium
| | - Aranzazu Jauregui-Amezaga
- Department of Gastroenterology and Hepatology, University Hospital Antwerp, Belgium; Laboratory of Experimental Medicine and Pediatrics (LEMP), Division of Gastroenterology-Hepatology, Faculty of Medicine and Health Sciences, University of Antwerp, Belgium.
| | - Liselotte Fierens
- Department of Chronic Diseases, Metabolism and Ageing (CHROMETA), Catholic University of Leuven, Belgium
| | | | - Jeroen Dekervel
- Department of Gastroenterology and Hepatology, University Hospital Leuven, Belgium
| | - Els Wauters
- Respiratory Oncology Unit (Pulmonology), University Hospitals KU Leuven, Leuven, Belgium; Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Marc Peeters
- Department of Digestive Oncology, University Hospital Antwerp, Belgium
| | - Joao Sabino
- Department of Gastroenterology and Hepatology, University Hospital Leuven, Belgium
| | - Lara Crapé
- Department of Gastroenterology, Algemeen Stedelijk Ziekenhuis Aalst, Belgium
| | - Michael Somers
- Department of Gastroenterology and Hepatology, University Hospital Antwerp, Belgium
| | - Anne Hoorens
- Department of Pathology, University Hospital Ghent, Belgium
| | - Joris Dutré
- Department of Gastroenterology, Ziekenhuis Netwerk Antwerpen Jan Palfijn, Belgium
| | - Triana Lobatón
- Department of Gastroenterology and Hepatology, University Hospital Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
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9
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Losurdo G, Angelillo D, Favia N, Sergi MC, Di Leo A, Triggiano G, Tucci M. Checkpoint Inhibitor-Induced Colitis: An Update. Biomedicines 2023; 11:biomedicines11051496. [PMID: 37239166 DOI: 10.3390/biomedicines11051496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023] Open
Abstract
Immunotherapy with immune checkpoint inhibitors (ICIs) nowadays has indications for several solid tumors. The current targets for ICIs are CTLA-4, PD-1, and PD-L1 receptors. Despite the clinical advantages derived from ICIs, a variety of side effects are linked to overstimulation of the immune system. Among these, ICI-related colitis is one of the most common, with a disabling impact on the patient. Diarrhea, abdominal pain, abdominal distension, cramping, and hematochezia are the most common ICI enterocolitis presenting symptoms. The most frequently used grading system for assessment of the severity of ICI enterocolitis is called the Common Terminology Criteria for Adverse Events (CTCAE) grading. With regard to the histological picture, there is no specific feature; however, microscopic damage can be classified into five types: (1) acute active colitis, (2) chronic active colitis, (3) microscopic colitis-like, (4) graft-versus-host disease-like, and (5) other types. Supportive therapy (oral hydration, a bland diet without lactose or caffeine, and anti-diarrheal agents) is indicated in mild colitis. Symptomatic treatment alone or with loperamide, a low-fiber diet, and spasmolytics are recommended for low-grade diarrhea. In more severe cases, corticosteroid treatment is mandatory. In refractory cases, off-label use of biological therapies (infliximab or vedolizumab) was proposed.
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Affiliation(s)
- Giuseppe Losurdo
- Section of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Daniele Angelillo
- Section of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Nicolas Favia
- Section of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Maria Chiara Sergi
- Medical Oncology Unit, Azienda Ospedaliero Universitaria Policlinico di Bari, 70124 Bari, Italy
| | - Alfredo Di Leo
- Section of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Giacomo Triggiano
- Medical Oncology Unit, Azienda Ospedaliero Universitaria Policlinico di Bari, 70124 Bari, Italy
| | - Marco Tucci
- Medical Oncology Unit, Azienda Ospedaliero Universitaria Policlinico di Bari, 70124 Bari, Italy
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
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10
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Alruwaii ZI, Montgomery EA. Gastrointestinal and Hepatobiliary Immune-related Adverse Events: A Histopathologic Review. Adv Anat Pathol 2023; 30:230-240. [PMID: 37037419 DOI: 10.1097/pap.0000000000000401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
Immune checkpoint inhibitors have been increasingly used to treat various malignant neoplasms. Despite their superior efficacy in treating certain ones, their global immune-activation effect leads to systemic side effects, referred to as immune-related adverse events. Immune-related adverse events affect a variety of organs, including the skin, gastrointestinal, hepatobiliary, and endocrine organs. Gastrointestinal tract immune-related adverse events present with a wide range of symptoms with variable severity, which may lead to treatment interruption and administration of immunosuppression therapy in many cases. Histopathologic changes are diverse, overlapping with many other conditions. Therefore, recognizing these changes is crucial in diagnosing immune-related adverse events. This review discusses the pathologic manifestations of gastrointestinal immune-related adverse events and discusses the primary differential diagnoses.
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11
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Boulagnon-Rombi C, Dufour C, Chatelain D. [Drug induced gastro-intestinal tract lesions: A pathologist point of view]. Ann Pathol 2023:S0242-6498(23)00045-7. [PMID: 36868901 DOI: 10.1016/j.annpat.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/31/2023] [Accepted: 02/08/2023] [Indexed: 03/05/2023]
Abstract
The number of drugs available to clinicians, especially targeted therapies, grows continuously. Some drugs are known to cause frequent digestive adverse effects, which may affect the gastro-intestinal tract in a diffuse or localized manner. Some treatments may leave relatively pathognomonic deposits, but histological lesions of iatrogenic origin are mostly non-specific. The diagnostic and etiological approach is often complex because of these non-specific aspects and also because (1) a single type of drug may cause different histological lesions, (2) different drugs may cause identical histological lesions, (3) the patient may receive different drugs, and (4) drug-induced lesions may mimic other pathological entities such as inflammatory bowel disease, celiac disease, or graft versus host disease. The diagnosis of iatrogenic gastrointestinal tract injury therefore requires close anatomic-clinical correlation. The iatrogenic origin can only be formally established if the symptomatology improves when the incriminating drug is stopped. This review aims to present the different histological patterns of gastrointestinal tract iatrogenic lesions, the potentially incriminate drugs, as well as the histological signs to look for in order to help the pathologist to distinguish an iatrogenic injury from another pathology of the gastrointestinal tract.
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Affiliation(s)
- Camille Boulagnon-Rombi
- Service de pathologie, centre hospitalier universitaire de Reims, 51092 Reims cedex, France; Université de Reims Champagne Ardenne, CNRS, MEDyC UMR 7369, 51097 Reims, France.
| | - Charlotte Dufour
- Institut de pathologie, centre de biologie pathologie, centre hospitalier universitaire de Lille, 59000 Lille, France
| | - Denis Chatelain
- Service d'anatomie pathologique du CHU d'Amiens, site Nord, 80080 Amiens, France
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12
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Guenzi E, Poté N. [Lymphocytic "…itis", from esophagus to large bowel]. Ann Pathol 2023:S0242-6498(23)00032-9. [PMID: 36828723 DOI: 10.1016/j.annpat.2023.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 02/24/2023]
Abstract
Intra-epithelial lymphocytosis is an elementary lesion frequently observed in the gastrointestinal tract, which can be found from the esophagus to the colon. Many conditions of a varied nature (dysimmunitary diseases, drugs, infections…) are associated with intra-epithelial lymphocytosis, and the etiological diagnosis most often requires an anatomo-clinical correlation. The pathologist will have to identify histological lesions associated with intra-epithelial lymphocytosis allowing the diagnosis to be oriented in order to propose appropriate treatment. In this review, the main entities associated with digestive intra-epithelial lymphocytosis will be presented, detailing the key elements allowing their diagnosis.
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Affiliation(s)
- Edouard Guenzi
- Département de pathologie, hôpital Bichat, assistance publique-hôpitaux de Paris, 46, rue Henri-Huchard, 75018 Paris, France
| | - Nicolas Poté
- Département de pathologie, hôpital Bichat, assistance publique-hôpitaux de Paris, 46, rue Henri-Huchard, 75018 Paris, France.
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13
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Drug-induced digestive tract injury: decoding some invisible offenders. Hum Pathol 2023; 132:135-148. [PMID: 35714837 DOI: 10.1016/j.humpath.2022.06.014] [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: 05/31/2022] [Accepted: 06/09/2022] [Indexed: 02/07/2023]
Abstract
There is an ever-growing list of pharmacological agents, several of which are attributed to cause clinically significant gastrointestinal (GI) injury. Many patients present with significant but nonspecific symptoms, that in conjunction with the absence of relevant drug history on the requisition slip can make the histopathologic diagnosis challenging. To complicate this, although some drugs have relatively characteristic histopathologic features (such as doxycycline), there exist many other drugs that exhibit wide and varying spectra of histopathologic findings (such as immune checkpoint inhibitors or olmesartan) and have histomorphologic overlap with many other commonly encountered disease entities. This review discusses the histopathologic features of some relatively recently described drugs causing GI tract injury, namely doxycycline, tacrolimus, mycophenolate, immune checkpoint inhibitors, and olmesartan. We also discuss the common mimics in histopathologic differential and some pearls that can help distinguish GI tract injury induced by the aforementioned drugs from its mimics. Awareness of the wide spectra of histopathologic changes associated with these drugs is crucial for practicing pathologists, to avoid misdiagnosis and guiding the clinician for an optimal patient management, which usually involves modifying or discontinuing the offending drug. Needless to say, once a diagnosis of drug-induced injury is suspected, clinicopathologic correlation including corroboration with the drug history is of utmost importance as is the exclusion of dual pathology in these patients.
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Yuan L, Wu TT, Zhang L. Microscopic colitis: lymphocytic colitis, collagenous colitis, and beyond. Hum Pathol 2023; 132:89-101. [PMID: 35809686 DOI: 10.1016/j.humpath.2022.06.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 06/27/2022] [Accepted: 06/30/2022] [Indexed: 02/07/2023]
Abstract
Microscopic colitis (MC) is a chronic inflammatory disease of colon with clinical presentations of chronic, watery, nonbloody diarrhea, and normal or almost normal endoscopic findings. Confirmation of a diagnosis of MC requires microscopic examination on colon biopsy to identify characteristic morphological features, in which 2 main subtypes of MC, lymphocytic colitis (LC) and collagenous colitis (CC), have been described. Although the pathogenesis of MC is still unclear, studies have revealed associations of MC with many risk factors and other diseases such as celiac disease, inflammatory bowel disease, and medication use. Meanwhile, variants of MC, MC incomplete, or MC-like changes in other conditions are still diagnostic dilemmas for pathologists. The goal of this paper is to systemically introduce the clinicopathologic features of MC and focus on unusual features of MC and its associations with other conditions.
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Affiliation(s)
- Lin Yuan
- Pathology Center, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 201613, China
| | - Tsung-Teh Wu
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Lizhi Zhang
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 55905, USA.
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15
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Check this out: treatment paradigms in immune-checkpoint inhibitor colitis. Curr Opin Gastroenterol 2023; 39:43-49. [PMID: 36504035 DOI: 10.1097/mog.0000000000000892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW Immune checkpoint inhibitors (ICI) have become a pillar of cancer therapy for many people around the world. However, up to two-thirds of all patients undergoing ICI therapy will have immune-related adverse events (irAEs), including immune-checkpoint inhibitor colitis (ICIC). This review summarizes the most valuable and currently available information about the mechanism, diagnosis, and management of ICIC. RECENT FINDINGS Recent findings include several developments on the leading theories for the mechanisms of ICIC such as the role of the gut microbiome. New emerging therapy strategies include tocilizumab, ustekinumab, mycophenolate mofetil, and calcineurin inhibitors. SUMMARY The occurrence of irAEs remains a limiting factor for the use of immunotherapy in cancer treatment. Prompt diagnosis of ICIC with endoscopy and histologic confirmation can lead to early utilization of known effective treatments such as corticosteroids, infliximab, vedolizumab, and other emerging therapy strategies. We summarize the key points of this review article in our abstract video, Supplemental Digital Content 1, http://links.lww.com/COG/A44.
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Immune checkpoint Inhibitor–Induced diarrhea and Colitis: Incidence and Management. A systematic review and Meta-analysis. Cancer Treat Rev 2022; 109:102440. [DOI: 10.1016/j.ctrv.2022.102440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 11/22/2022]
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Nielsen OH, Fernandez-Banares F, Sato T, Pardi DS. Microscopic colitis: Etiopathology, diagnosis, and rational management. eLife 2022; 11:e79397. [PMID: 35913459 PMCID: PMC9342949 DOI: 10.7554/elife.79397] [Citation(s) in RCA: 10] [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: 04/19/2022] [Accepted: 07/19/2022] [Indexed: 01/09/2023] Open
Abstract
Microscopic colitis is an inflammatory bowel disease divided into two subtypes: collagenous colitis and lymphocytic colitis. With an increasing incidence of microscopic colitis exceeding those of ulcerative and Crohn's disease among elderly people in some countries, microscopic colitis is a debilitating life experience. Therefore, physicians should be familiar with its clinical features and management strategies because the disease deserves the same attention as the classical inflammatory bowel diseases. Here, state-of-the-art knowledge of microscopic colitis is provided from a global perspective with reference to etiopathology and how to establish the diagnosis with the overall aim to create awareness and improve rational management in clinical practice. The immune system and a dysregulated immune response seem to play a key role combined with risk factors (e.g. cigarette smoking) in genetically predisposed individuals. The symptoms are characterized by recurrent or chronic nonbloody, watery diarrhea, urgency, weight loss, and a female preponderance. As biomarkers are absent, the diagnosis relies on colonoscopy with a histological assessment of biopsy specimens from all parts of the colon. Although the disease is not associated with a risk of colorectal cancer, a recent nationwide, population-based cohort study found an increased risk of lymphoma and lung cancer. Budesonide is the first-line therapy for management, whereas immunomodulatory drugs (including biologics) and drugs with antidiarrheal properties may be indicated in those failing, dependent, or intolerant to budesonide. In microscopic colitis induced by checkpoint inhibitors, a drug class used increasingly for a wide range of malignancies, a more aggressive therapeutic approach with biologics introduced early seems reasonable. However, particular attention needs to be drawn to the existence of incomplete forms of microscopic colitis with the risk of being overlooked in routine clinical settings.
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Affiliation(s)
- Ole Haagen Nielsen
- Department of Gastroenterology, Herlev Hospital, University of CopenhagenHerlevDenmark
| | - Fernando Fernandez-Banares
- Department of Gastroenterology, Hospital Universitari Mutua TerrassaBarcelonaSpain
- Centro de Investigación Biomédica en Red de enfermedades hepáticas y digestivasCIBERehdSpain
| | - Toshiro Sato
- Department of Gastroenterology, Keio University School of MedicineTokyoJapan
| | - Darrell S Pardi
- Division of Gastroenterology and Hepatology, Mayo ClinicRochesterUnited States
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Alruwaii ZI, Montgomery EA. Gastrointestinal and Hepatobiliary Immune-related Adverse Events: A Histopathologic Review. Adv Anat Pathol 2022; 29:183-193. [PMID: 35470287 DOI: 10.1097/pap.0000000000000346] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Immune checkpoint inhibitors have been increasingly used to treat various malignant neoplasms. Despite their superior efficacy in treating certain ones, their global immune-activation effect leads to systemic side effects, referred to as immune-related adverse events. Immune-related adverse events affect a variety of organs, including the skin, gastrointestinal, hepatobiliary, and endocrine organs. Gastrointestinal tract immune-related adverse events present with a wide range of symptoms with variable severity, which may lead to treatment interruption and administration of immunosuppression therapy in many cases. Histopathologic changes are diverse, overlapping with many other conditions. Therefore, recognizing these changes is crucial in diagnosing immune-related adverse events. This review discusses the pathologic manifestations of gastrointestinal immune-related adverse events and discusses the primary differential diagnoses.
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19
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Gupta S, Allegretti JR. Mimics of Crohn's Disease. Gastroenterol Clin North Am 2022; 51:241-269. [PMID: 35595413 DOI: 10.1016/j.gtc.2021.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Crohn's disease is a chronic inflammatory disease that can affect any portion of the gastrointestinal tract. Associated symptoms can vary based on the severity of disease, extent of involvement, presence of extraintestinal manifestations, and development of complications. Diagnosis is based on a constellation of findings. Many diseases can mimic Crohn's disease and lead to diagnostic conundrums. These include entities associated with the gastrointestinal luminal tract, vascular disease, autoimmune processes, various infections, malignancies and complications, drug- or treatment-induced conditions, and genetic diseases. Careful consideration of possible causes is necessary to establish the correct diagnosis.
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Affiliation(s)
- Sanchit Gupta
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, 850 Boyslton Street, Suite 201, Chestnut Hill, MA 02467, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
| | - Jessica R Allegretti
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, 850 Boyslton Street, Suite 201, Chestnut Hill, MA 02467, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA.
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20
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Herlihy N, Feakins R. Gut inflammation induced by drugs: Can pathology help to differentiate from inflammatory bowel disease? United European Gastroenterol J 2022; 10:451-464. [PMID: 35633273 PMCID: PMC9189468 DOI: 10.1002/ueg2.12242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 04/24/2022] [Indexed: 12/13/2022] Open
Abstract
Drug‐induced mucosal injury (DIMI) in the gastrointestinal tract is important to recognise, partly because cessation of the culprit agent alone may result in resolution of symptoms. An ever‐growing list of medications, including newer immunotherapeutic agents and targeted therapies, can cause gastrointestinal inflammation of varying severity. However, the diagnosis of DIMI is challenging, as a single drug can induce a variety of histopathological patterns of injury including acute colitis, chronic colitis, microscopic colitis, apoptotic colopathy, and ischaemic‐type colitis. An additional consideration is the potential clinical, endoscopic and histological overlap of DIMI with gastrointestinal mucosal injury secondary to other entities such as inflammatory bowel disease (IBD). We discuss DIMI of the gastrointestinal tract with an emphasis on histological patterns that mimic IBD, histological features which may distinguish the two entities, and the diagnostic role and limitations of the pathologist.
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Affiliation(s)
- Naoimh Herlihy
- Department of Cellular Pathology, Royal Free Hospital, London, UK
| | - Roger Feakins
- Department of Cellular Pathology, Royal Free Hospital, London and University College London, London, UK
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21
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Kmeid M, Aldyab M, Brar R, Lee H. Histologic Findings and Tissue B-Cell Depletion in Endoscopic Mucosal Biopsy Specimens of the Gastrointestinal Tract After Treatment With Rituximab. Am J Clin Pathol 2022; 157:353-364. [PMID: 34520518 DOI: 10.1093/ajcp/aqab133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 07/07/2021] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES Rituximab (RTX) is associated with variable adverse gastrointestinal (GI) events. However, the histologic correlate in affected patients is not well defined. METHODS Patients (n = 93) who had received RTX and undergone endoscopic biopsies were identified. CD20 and PAX5 immunostains were performed on biopsy specimens showing inflammatory pathology (group A, 36 patients) and 35 of 57 noninflammatory biopsies (group B) that were taken within 1 year from the last RTX infusion. Histologic findings were correlated with tissue B-cell depletion (CD20/PAX5-/-). RESULTS B cells were depleted in 12 (33%) of 36 group A biopsy specimens. After excluding biopsies taken more than 1 year from the last RTX infusion, the frequencies of tissue B-cell depletion were similar between group A (12/26; 46.2%) and group B (17/35; 48.6%) (P > .05). Also, the frequencies of inflammatory pathology were not statistically different whether B cells were depleted or not (P > .05). In group A with tissue B-cell depletion (n = 12), causality was indicated in two (17%) cases showing lymphocytic colitis pattern of injury (LCPI). CONCLUSIONS In RTX-treated patients, tissue B-cell depletion does not appear to be the main cause of inflammatory pathology in the GI tract. A minor subset, however, develops histologic evidence of potential RTX-induced effect, notably in the form of LCPI.
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Affiliation(s)
- Michel Kmeid
- Department of Pathology and Laboratory Medicine, Albany Medical Center, Albany, NY, USA
| | - Mahmoud Aldyab
- Department of Pathology and Laboratory Medicine, Albany Medical Center, Albany, NY, USA
| | - Rupinder Brar
- Department of Pathology and Laboratory Medicine, Albany Medical Center, Albany, NY, USA
| | - Hwajeong Lee
- Department of Pathology and Laboratory Medicine, Albany Medical Center, Albany, NY, USA
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22
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Ma C, MacDonald JK, Nguyen TM, Chang J, Vande Casteele N, Feagan BG, Jairath V. Systematic review: disease activity indices for immune checkpoint inhibitor-associated enterocolitis. Aliment Pharmacol Ther 2022; 55:178-190. [PMID: 34821404 DOI: 10.1111/apt.16718] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/01/2021] [Accepted: 11/15/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Although there is interest in developing pharmacotherapies for the treatment of immune checkpoint inhibitor-associated enterocolitis (ICIC), there is currently no consensus on how to optimally measure disease activity in this condition. AIMS To identify all scoring indices used for the measurement of disease activity in ICIC, assess their operating properties, and explore their potential utility as outcome measures. METHODS We searched MEDLINE, EMBASE and the Cochrane Library from inception to November 2020 to identify studies that evaluated disease activity and severity in patients with ICI-associated enterocolitis. These scoring tools could be designed specifically for ICIC or adapted from other diseases, and assessed clinical, endoscopic, or histologic disease activity. RESULTS Sixty-four studies were included. The Common Terminology Criteria for Adverse Events is commonly used to describe symptoms, although has only been partially validated and was not designed as a disease activity index. Endoscopic and histologic indices used in inflammatory bowel disease have been adopted for ICIC including the Mayo Endoscopic Subscore, Ulcerative Colitis Endoscopic Index of Severity, Simple Endoscopic Score for Crohn's Disease, Nancy Histological Index, Robarts Histopathological Index, and Geboes Score, among others. None of these indices has been validated for use in ICIC, and all lacked content validity and responsiveness. CONCLUSIONS There are no validated clinical, endoscopic, or histologic outcomes to assess disease activity in ICIC. Development and validation of reliable and responsive outcome measures that can be used to measure disease activity will be paramount for both clinical practice and for the development of treatments.
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Affiliation(s)
- Christopher Ma
- Division of Gastroenterology & Hepatology, Departments of Medicine and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alimentiv Inc (formerly Robarts Clinical Trials), London, ON, Canada
| | - John K MacDonald
- Alimentiv Inc (formerly Robarts Clinical Trials), London, ON, Canada
| | - Tran M Nguyen
- Alimentiv Inc (formerly Robarts Clinical Trials), London, ON, Canada
| | - Joshua Chang
- Alimentiv Inc (formerly Robarts Clinical Trials), London, ON, Canada
| | - Niels Vande Casteele
- Alimentiv Inc (formerly Robarts Clinical Trials), London, ON, Canada.,Division of Gastroenterology, University of California San Diego, La Jolla, CA, USA
| | - Brian G Feagan
- Alimentiv Inc (formerly Robarts Clinical Trials), London, ON, Canada.,Division of Gastroenterology and Department of Epidemiology and Biostatistics, Western University, London, ON, Canada
| | - Vipul Jairath
- Alimentiv Inc (formerly Robarts Clinical Trials), London, ON, Canada.,Division of Gastroenterology and Department of Epidemiology and Biostatistics, Western University, London, ON, Canada
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23
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Zhang ML, Deshpande V. Histopathology of Gastrointestinal Immune-related Adverse Events: A Practical Review for the Practicing Pathologist. Am J Surg Pathol 2021; 46:e15-e26. [PMID: 33999556 DOI: 10.1097/pas.0000000000001730] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Immune checkpoint inhibitors target checkpoint proteins with the goal of reinvigorating the host immune system and thus restoring antitumor response. With the dramatic increase in the use of checkpoint inhibitors for cancer treatment, surgical pathologists have assumed a major role in predicting the therapeutic efficacy (score based on programmed cell death ligand 1 immunohistochemistry and mismatch repair protein loss) as well as diagnosing the complications associated with these medications. Immune-related adverse events (irAEs) manifest as histologic changes seen in both the upper and lower gastrointestinal tract, and when viewed in isolation, may be morphologically indistinguishable from a wide range of diseases including infections, celiac disease, and inflammatory bowel disease, among others. Evaluation of biopsies from both the upper and lower gastrointestinal tract can aid in the distinction of gastrointestinal irAEs from their mimics. In the liver, the histologic changes of hepatic irAEs overlap with de novo diseases associated with hepatitic and cholangitic patterns of injury. The diagnosis of irAEs requires communication and collaboration from the pathologist, oncologist, and gastroenterologist. This review provides a background framework and illustrates the histologic features and differential diagnosis of gastrointestinal and hepatic irAEs.
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Affiliation(s)
- M Lisa Zhang
- Department of Pathology, Massachusetts General Hospital Harvard Medical School, Boston, MA
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