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Samson M, Devilliers H, Thietart S, Charles P, Pagnoux C, Cohen P, Karras A, Mouthon L, Terrier B, Puéchal X, Guillevin L. Score to assess the probability of relapse in granulomatosis with polyangiitis and microscopic polyangiitis. RMD Open 2023; 9:rmdopen-2022-002953. [PMID: 36972927 PMCID: PMC10069598 DOI: 10.1136/rmdopen-2022-002953] [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] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 03/12/2023] [Indexed: 03/29/2023] Open
Abstract
OBJECTIVE To develop a score assessing the probability of relapse in granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA). METHODS Long-term follow-up data from GPA and MPA patients included in five consecutive randomised controlled trials were pooled. Patient characteristics at diagnosis were entered into a competing-risks model, with relapse as the event of interest and death the competing event. Univariate and multivariate analyses were computed to identify variables associated with relapse and build a score, which was then validated in an independent cohort of GPA or MPA patients. RESULTS Data collected from 427 patients (203 GPA, 224 MPA) at diagnosis were included. Mean±SD follow-up was 80.6±51.3 months; 207 (48.5%) patients experienced ≥1 relapse. Relapse risk was associated with proteinase 3 (PR3) positivity (HR=1.81 (95% CI 1.28 to 2.57); p<0.001), age ≤75 years (HR=1.89 (95% CI 1.15 to 3.13); p=0.012) and estimated glomerular filtration rate (eGFR) ≥30 mL/min/1.73 m² (HR=1.67 (95% CI 1.18 to 2.33); p=0.004) at diagnosis. A score, the French Vasculitis Study Group Relapse Score (FRS), from 0 to 3 points was modelised: 1 point each for PR3-antineutrophil cytoplasmic antibody positivity, eGFR ≥30 mL/min/1.73 m² and age ≤75 years. In the validation cohort of 209 patients, the 5-year relapse risk was 8% for a FRS of 0, 30% for 1, 48% for 2 and 76% for 3. CONCLUSION The FRS can be used at diagnosis to assess the relapse risk in patients with GPA or MPA. Its value for tailoring the duration of maintenance therapy should be evaluated in future prospective trials.
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Affiliation(s)
- Maxime Samson
- Department of Internal Medicine and Clinical Immunology, University Hospital Centre Dijon Bourgogne, Dijon, France
| | - Hervé Devilliers
- INSERM, CIC 1432, Clinical Epidemiology Unit, University of Burgundy, Dijon, France
| | - Sara Thietart
- Sorbonne Université, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Universitaire Pitié Salpêtrière, Paris, France
| | - Pierre Charles
- Department of Internal Medicine, Institut Mutualiste Montsouris, Paris, France
| | - Christian Pagnoux
- Vasculitis Clinic, Division of Rheumatology, University of Toronto, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Pascal Cohen
- Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, Paris, France
| | - Alexandre Karras
- Department of Nephrology, AP-HP, Hopital Europeen Georges Pompidou, Paris, France
- Universite Paris Descartes, Paris, France
| | - Luc Mouthon
- Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, Paris, France
| | - Benjamin Terrier
- Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, Paris, France
| | - Xavier Puéchal
- Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, Paris, France
| | - Loic Guillevin
- Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, Paris, France
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Puéchal X, Iudici M, Pagnoux C, Cohen P, Hamidou M, Aouba A, Lifermann F, Ruivard M, Aumaître O, Bonnotte B, Maurier F, Le Gallou T, Hachulla E, Karras A, Khouatra C, Jourde-Chiche N, Viallard JF, Blanchard-Delaunay C, Godmer P, Le Quellec A, Quéméneur T, de Moreuil C, Mouthon L, Terrier B, Guillevin L. Comparative study of granulomatosis with polyangiitis subsets according to ANCA status: data from the French Vasculitis Study Group Registry. RMD Open 2022; 8:rmdopen-2021-002160. [PMID: 35296533 PMCID: PMC8928389 DOI: 10.1136/rmdopen-2021-002160] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 02/21/2022] [Indexed: 01/08/2023] Open
Abstract
Objective To investigate whether antineutrophil cytoplasm antibody (ANCA)-negative and myeloperoxidase (MPO)-ANCA–positive granulomatosis with polyangiitis (GPA) differ from proteinase-3 (PR3)-ANCA–positive GPA. Methods Diagnostic characteristics and outcomes of newly diagnosed French Vasculitis Study Group Registry patients with ANCA-negative, MPO-ANCA–positive or PR3-ANCA–positive GPA satisfying American College of Rheumatology criteria and/or Chapel Hill Conference Consensus Nomenclature were compared. Results Among 727 GPA, 62 (8.5%) were ANCA-negative, 119 (16.4%) MPO-ANCA–positive and 546 (75.1%) PR3-ANCA–positive. ANCA-negative patients had significantly (p<0.05) more limited disease (17.7% vs 5.8%) and less kidney involvement (35.5% vs 58.9%) than those PR3-ANCA–positive or MPO-ANCA–positive, with comparable relapse-free (RFS) and overall survival (OS). MPO-ANCA–positive versus PR3-ANCA–positive and ANCA-negative patients were significantly more often female (52.9% vs 42.1%), older (59.8 vs 51.9 years), with more frequent kidney involvement (65.5% vs 55.2%) and less arthralgias (34.5% vs 55.1%), purpura (8.4% vs 17.1%) or eye involvement (18.5% vs 28.4%); RFS was similar but OS was lower before age adjustment. PR3-positive patients’ RFS was significantly lower than for ANCA-negative and MPO-positive groups combined, with OS higher before age adjustment. PR3-ANCA–positivity independently predicted relapse for all GPA forms combined but not when comparing only PR3-ANCA–positive versus MPO-ANCA–positive patients. Conclusions Based on this large cohort, ANCA-negative versus ANCA-positive patients more frequently had limited disease but similar RFS and OS. MPO-ANCA–positive patients had similar RFS but lower OS due to their older age. PR3-ANCA–positive GPA patients’ RFS was lower than those of the two other subsets combined but that difference did not persist when comparing only PR3 versus MPO-ANCA–positive patients.
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Affiliation(s)
- Xavier Puéchal
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France
| | - Michele Iudici
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France.,Division of Rheumatology, Department of Internal Medicine Specialties, Geneva University Hospitals, Geneva, Switzerland
| | - Christian Pagnoux
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France.,Vasculitis Clinic, Mont Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Pascal Cohen
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France
| | - Mohamed Hamidou
- Internal Medicine, Hôtel-Dieu University Hospital, Nantes, France
| | - Achille Aouba
- Internal Medicine, Côte-de-Nacre Hospital, University of Caen Normandy, Caen, France
| | | | - Marc Ruivard
- Internal Medicine, Clermont-Ferrand University Hospitals, Clermont-Ferrand, France
| | - Olivier Aumaître
- Internal Medicine, Clermont-Ferrand University Hospitals, Clermont-Ferrand, France
| | - Bernard Bonnotte
- Internal Medicine and Clinical Immunology, François Mitterrand Hospital, University of Burgundy, Dijon, France
| | | | - Thomas Le Gallou
- Internal Medicine and Clinical Immunology, University of Rennes 1, Rennes, France
| | - Eric Hachulla
- Internal Medicine, Claude-Huriez Hospital, Lille University School of Medicine, Lille, France
| | - Alexandre Karras
- Nephrology, European Hospital Georges Pompidou, AP-HP.Centre, University of Paris, Paris, France, Paris, France
| | - Chahéra Khouatra
- Respiratory Medicine, Louis Pradel Hospital, University of Claude Bernard Lyon 1, Lyon, France
| | | | | | | | - Pascal Godmer
- Internal Medicine, Bretagne -Atlantique Hospital, Vannes, France
| | - Alain Le Quellec
- Internal Medicine, Saint Eloi Hospital, University of Montpellier 1, Montpellier, France
| | - Thomas Quéméneur
- Nephrology and Internal Medicine, Valenciennes Hospital, Valenciennes, France
| | - Claire de Moreuil
- Internal Medicine, La Cavale Blanche University Hospital, Brest, France
| | - Luc Mouthon
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France
| | - Benjamin Terrier
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France
| | - Loïc Guillevin
- National Referral Center for Rare Systemic Autoimmune Diseases, Internal Medicine, Cochin Hospital, AP-HP.Centre, University of Paris, Paris, France
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