PMID- 35784625 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 1108-7471 (Print) IS - 1792-7463 (Electronic) IS - 1108-7471 (Linking) VI - 35 IP - 4 DP - 2022 Jul-Aug TI - Clostridioides difficile infection in cancer patients receiving immune checkpoint inhibitors. PG - 393-399 LID - 10.20524/aog.2022.0722 [doi] AB - BACKGROUND: Immune checkpoint inhibitors (ICIs) have revolutionized cancer treatment, but are associated with immune-mediated diarrhea and colitis (IMDC). Clostridioides difficile infection (CDI) can cause infectious diarrhea with overlapping symptoms. Thus, we sought to elucidate the characteristics of CDI in patients treated with ICI, in the context of IMDC. METHODS: We conducted a retrospective, single-center study of adult cancer patients (N=421) with ICI exposure from 2015-2020 and a positive stool nucleic acid amplification test and/or enzyme immunoassay for CDI. Baseline characteristics, treatments, and outcomes were compared between patients with and without concurrent IMDC. RESULTS: Forty-one eligible patients were included, 27 with concurrent IMDC and 14 without. Twenty-seven patients were taking programmed death-1 or its ligand inhibitors and 14 were taking cytotoxic T-lymphocyte-associated antigen 4 inhibitors. Patients with concurrent CDI and IMDC had a longer symptom duration (20 vs. 5 days, P=0.003) and a higher rate of grade 3-4 diarrhea (41% vs. 7%, P=0.033). Among patients with concurrent IMDC, preceding antibiotics (P=0.050) and proton pump inhibitors (PPI) (P=0.038) were used more frequently among individuals who developed CDI after immunosuppressant exposure. Thirty-eight patients received antibiotics for CDI, while 5 required fecal microbiota transplantation for concurrent CDI & IMDC. CONCLUSIONS: CDI is common in ICI-treated cancer patients, especially those with IMDC requiring immunosuppressants. Antibiotics did not alter the need for immunosuppressants in those with concurrent IMDC. Use of PPI and antibiotics while receiving immunosuppressants for IMDC was associated with a greater risk of CDI. Further large-scale studies are warranted to clarify the role of CDI, antibiotics and immunosuppression treatment in IMDC patients. CI - Copyright: (c) Hellenic Society of Gastroenterology. FAU - Vasavada, Shaleen AU - Vasavada S AD - Department of Internal Medicine, Baylor College of Medicine, Houston, Texas (Shaleen Vasavada, Kavea Panneerselvam). FAU - Panneerselvam, Kavea AU - Panneerselvam K AD - Department of Internal Medicine, Baylor College of Medicine, Houston, Texas (Shaleen Vasavada, Kavea Panneerselvam). FAU - Amin, Rajan AU - Amin R AD - Department of Internal Medicine, The University of Texas Health Science Center, Houston, Texas (Rajan Amin). FAU - Varatharajalu, Krishnavathana AU - Varatharajalu K AD - Department of Gastroenterology, Hepatology, and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas (Krishnavathana Varatharajalu, Anusha S. Thomas, Yinghong Wang). FAU - Okhuysen, Pablo C AU - Okhuysen PC AD - Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, Texas (Pablo C. Okhuysen). FAU - Oliva, Isabella C Glitza AU - Oliva ICG AD - Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas (Isabella C. Glitza Oliva). FAU - Wang, Jianbo AU - Wang J AD - Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas (Jianbo Wang). FAU - Grivas, Petros AU - Grivas P AD - Department of Medicine, University of Washington, Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, Washington (Petros Grivas), USA. FAU - Thomas, Anusha S AU - Thomas AS AD - Department of Gastroenterology, Hepatology, and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas (Krishnavathana Varatharajalu, Anusha S. Thomas, Yinghong Wang). FAU - Wang, Yinghong AU - Wang Y AD - Department of Gastroenterology, Hepatology, and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas (Krishnavathana Varatharajalu, Anusha S. Thomas, Yinghong Wang). LA - eng PT - Journal Article DEP - 20220602 PL - Greece TA - Ann Gastroenterol JT - Annals of gastroenterology JID - 101121847 PMC - PMC9210781 OTO - NOTNLM OT - Clostridioidesdifficile infection OT - Immune checkpoint inhibitors OT - immune-mediated diarrhea and colitis COIS- Conflict of Interest: P. Grivas provided consulting to AstraZeneca, Astellas Pharma, Bayer, Bristol Myers Squibb, Dyania Health, EMD Serono, Exelixis, Foundation Medicine, Genentech/Roche, Genzyme, GlaxoSmithKline, Guardant Health, Gilead Sciences, Infinity Pharmaceuticals, Janssen, Lucence Health, Merck, Mirati Therapeutics, Pfizer, QED Therapeutics, Regeneron Pharmaceuticals, Seattle Genetics, UroGen, SilverBack Therapeutics, 4D Pharma PLC. His institution has received grants from Bavarian Nordic, Bristol Myers Squibb, Clovis Oncology, Debiopharm, EMD Serono, G1 Therapeutics, Gilead Sciences, GlaxoSmithKline, Merck, Mirati Therapeutics, Pfizer, QED Therapeutics. Dr. Wang has disclosed serving as a consultant for Tillotts Pharma, and AzurRx Pharma. EDAT- 2022/07/06 06:00 MHDA- 2022/07/06 06:01 PMCR- 2022/07/01 CRDT- 2022/07/05 10:27 PHST- 2022/02/05 00:00 [received] PHST- 2022/04/01 00:00 [accepted] PHST- 2022/07/05 10:27 [entrez] PHST- 2022/07/06 06:00 [pubmed] PHST- 2022/07/06 06:01 [medline] PHST- 2022/07/01 00:00 [pmc-release] AID - AnnGastroenterol-35-393 [pii] AID - 10.20524/aog.2022.0722 [doi] PST - ppublish SO - Ann Gastroenterol. 2022 Jul-Aug;35(4):393-399. doi: 10.20524/aog.2022.0722. Epub 2022 Jun 2.