PMID- 36702528 OWN - NLM STAT- MEDLINE DCOM- 20230414 LR - 20230515 IS - 1468-2060 (Electronic) IS - 0003-4967 (Print) IS - 0003-4967 (Linking) VI - 82 IP - 5 DP - 2023 May TI - Risk factors for serious infections in ANCA-associated vasculitis. PG - 681-687 LID - 10.1136/ard-2022-223401 [doi] AB - OBJECTIVES: Severe infections contribute to morbidity and mortality in antineutrophil cytoplasm antibody-associated vasculitis (AAV). This study aimed to identify risk factors associated with severe infections in participants of the Rituximab versus Cyclophosphamide for ANCA-Associated Vasculitis (RAVE) trial. METHODS: Data on 197 patients recruited into the RAVE trial were analysed. Participants received either rituximab (RTX) or cyclophosphamide (CYC), followed by azathioprine (AZA). Clinical and laboratory data of patients with and without severe infections (>/=grade 3, according to the Common Terminology Criteria for Adverse Events version 3.0) were compared. Risk factors for severe infections were investigated using Cox-regression models. RESULTS: Eighteen of 22 (82%) severe infections occurred within 6 months after trial entry, most commonly respiratory tract infections (15/22, 68%). At baseline, lower absolute numbers of CD19+ cells were observed in patients with severe infections either receiving RTX or CYC/AZA at baseline, while CD5+B and CD3+T cells did not differ between groups. In Cox-regression analysis, higher baseline serum immunoglobulin M levels were associated with the risk of severe infections, whereby a higher baseline total CD19+B cell number and prophylaxis against Pneumocystis jirovecii with trimethoprim-sulfamethoxazole (TMP/SMX) with decreased risk of severe infections. Use of TMP/SMX was associated with lower risk of severe infections in both groups, receiving either RTX or CYC/AZA. CONCLUSIONS: The use of low-dose TMP/SMX is associated with reduced risk of severe infections in patients with AAV treated with either RTX or CYC/AZA. Reduced B cell subpopulations at start of treatment might be a useful correlate of reduced immunocompetence. CI - (c) Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY. Published by BMJ. FAU - Odler, Balazs AU - Odler B AD - Department of Medicine, University of Cambridge, Cambridge, UK. AD - Division of Nephrology, Department of Internal Medicine, Medical University of Graz, Graz, Austria. FAU - Riedl, Regina AU - Riedl R AD - Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria. FAU - Gauckler, Philipp AU - Gauckler P AUID- ORCID: 0000-0002-5964-0307 AD - Department of Internal Medicine IV, Nephrology and Hypertension, Medical University Innsbruck, Innsbruck, Austria. FAU - Shin, Jae Il AU - Shin JI AD - Yonsei University College of Medicine and Severance Children's Hospital, Seoul, Republic of Korea. FAU - Leierer, Johannes AU - Leierer J AD - Department of Internal Medicine IV, Nephrology and Hypertension, Medical University Innsbruck, Innsbruck, Austria. FAU - Merkel, Peter A AU - Merkel PA AD - Division of Rheumatology, University of Pennsylvania, Philadelphia, Pennsylvania, USA. FAU - St Clair, William AU - St Clair W AD - Division of Rheumatology and Immunology, Duke University, Durham, North Carolina, USA. FAU - Fervenza, Fernando AU - Fervenza F AD - Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA. FAU - Geetha, Duvuru AU - Geetha D AUID- ORCID: 0000-0001-8353-5542 AD - Division of Nephrology, Johns Hopkins University, Baltimore, Maryland, USA. FAU - Monach, Paul AU - Monach P AD - VA Boston Healthcare System, West Roxbury, Massachusetts, USA. FAU - Jayne, David AU - Jayne D AUID- ORCID: 0000-0002-1712-0637 AD - Department of Medicine, University of Cambridge, Cambridge, UK. FAU - Smith, Rona M AU - Smith RM AD - Department of Medicine, University of Cambridge, Cambridge, UK. FAU - Rosenkranz, Alexander AU - Rosenkranz A AD - Division of Nephrology, Department of Internal Medicine, Medical University of Graz, Graz, Austria. FAU - Specks, Ulrich AU - Specks U AD - Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA. FAU - Stone, John H AU - Stone JH AUID- ORCID: 0000-0001-6588-9435 AD - Division of Rheumatology Allergy, and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA. FAU - Kronbichler, Andreas AU - Kronbichler A AUID- ORCID: 0000-0002-2945-2946 AD - Department of Medicine, University of Cambridge, Cambridge, UK ak2283@cam.ac.uk. CN - RAVE-ITN Research Group LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230126 PL - England TA - Ann Rheum Dis JT - Annals of the rheumatic diseases JID - 0372355 RN - 4F4X42SYQ6 (Rituximab) RN - 8064-90-2 (Trimethoprim, Sulfamethoxazole Drug Combination) RN - 0 (Antibodies, Monoclonal, Murine-Derived) RN - 8N3DW7272P (Cyclophosphamide) RN - MRK240IY2L (Azathioprine) SB - IM MH - Humans MH - Rituximab/therapeutic use MH - *Trimethoprim, Sulfamethoxazole Drug Combination/therapeutic use MH - Antibodies, Monoclonal, Murine-Derived MH - Remission Induction MH - *Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/complications/drug therapy MH - Cyclophosphamide/therapeutic use MH - Azathioprine/therapeutic use MH - Risk Factors MH - Treatment Outcome PMC - PMC10176387 OTO - NOTNLM OT - ANCA OT - Infections OT - Vasculitis OT - cyclophosphamide OT - rituximab COIS- Competing interests: BO received speaker fees and travel support from Otsuka. Fernando Fervenza reports receiving research grants from Genentech. PG reports receiving speaker fees from Otsuka and consulting fees from Vifor Pharma, UriSalt and Delta4. DG received consulting fees from ChemoCentryx, Aurinia and GSK. DJ has received research grants, consultancy or lecture fees from Amgen, Astra-Zeneca, BMS, Boehringer-Ingelheim, Chemocentryx, GSK, Kessai, NICE, Novartis, Otsuka, Roche/Genentech, Takeda, UCB and Vifor. AK reports receiving research grants from Vifor Pharma and Otsuka, speaking fees from Vifor Pharma, and Terumo BCT, and consulting fees from Vifor Pharma, Otsuka, UriSalt, Delta4 and Catalyst Biosciences. EDAT- 2023/01/27 06:00 MHDA- 2023/04/14 06:41 PMCR- 2023/05/12 CRDT- 2023/01/26 20:43 PHST- 2022/09/26 00:00 [received] PHST- 2023/01/06 00:00 [accepted] PHST- 2023/04/14 06:41 [medline] PHST- 2023/01/27 06:00 [pubmed] PHST- 2023/01/26 20:43 [entrez] PHST- 2023/05/12 00:00 [pmc-release] AID - ard-2022-223401 [pii] AID - 10.1136/ard-2022-223401 [doi] PST - ppublish SO - Ann Rheum Dis. 2023 May;82(5):681-687. doi: 10.1136/ard-2022-223401. Epub 2023 Jan 26.