Clinical and Prognostic Factors in Patients with IgG4-Related Kidney Disease

Copyright © 2023 by the American Society of Nephrology..

BACKGROUND: IgG4-related kidney disease is a major manifestation of IgG4-related disease, a systemic fibroinflammatory disorder. However, the clinical and prognostic kidney-related factors in patients with IgG4-related kidney disease are insufficiently defined.

METHODS: We conducted an observational cohort study using data from 35 sites in two European countries. Clinical, biologic, imaging, and histopathologic data; treatment modalities; and outcomes were collected from medical records. Logistic regression was performed to identify the possible factors related to an eGFR ≤30 ml/min per 1.73 m 2 at the last follow-up. Cox proportional hazards model was performed to assess the factors associated with the risk of relapse.

RESULTS: We studied 101 adult patients with IgG4-related disease with a median follow-up of 24 (11-58) months. Of these, 87 (86%) patients were male, and the median age was 68 (57-76) years. Eighty-three (82%) patients had IgG4-related kidney disease confirmed by kidney biopsy, with all biopsies showing tubulointerstitial involvement and 16 showing glomerular lesions. Ninety (89%) patients were treated with corticosteroids, and 18 (18%) patients received rituximab as first-line therapy. At the last follow-up, the eGFR was below 30 ml/min per 1.73 m 2 in 32% of patients; 34 (34%) patients experienced a relapse, while 12 (13%) patients had died. By Cox survival analysis, the number of organs involved (hazard ratio [HR], 1.26; 95% confidence interval [CI], 1.01 to 1.55) and low C3 and C4 concentrations (HR, 2.31; 95% CI, 1.10 to 4.85) were independently associated with a higher risk of relapse, whereas first-line therapy with rituximab was protective (HR, 0.22; 95% CI, 0.06 to 0.78). At their last follow-up, 19 (19%) patients had an eGFR ≤30 ml/min per 1.73 m 2 . Age (odd ratio [OR], 1.11; 95% CI, 1.03 to 1.20), peak serum creatinine (OR, 2.74; 95% CI, 1.71 to 5.47), and serum IgG4 level ≥5 g/L (OR, 4.46; 95% CI, 1.23 to 19.40) were independently predictive for severe CKD.

CONCLUSIONS: IgG4-related kidney disease predominantly affected middle-aged men and manifested as tubulointerstitial nephritis with potential glomerular involvement. Complement consumption and the number of organs involved were associated with a higher relapse rate, whereas first-line therapy with rituximab was associated with lower relapse rate. Patients with high serum IgG4 concentrations (≥5 g/L) had more severe kidney disease.

Errataetall:

CommentIn: Clin J Am Soc Nephrol. 2023 Aug 1;18(8):994-996. - PMID 37418275

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:18

Enthalten in:

Clinical journal of the American Society of Nephrology : CJASN - 18(2023), 8 vom: 01. Aug., Seite 1031-1040

Sprache:

Englisch

Beteiligte Personen:

Chaba, Anis [VerfasserIn]
Devresse, Arnaud [VerfasserIn]
Audard, Vincent [VerfasserIn]
Boffa, Jean Jacques [VerfasserIn]
Karras, Alexandre [VerfasserIn]
Cartery, Claire [VerfasserIn]
Deltombe, Clément [VerfasserIn]
Chemouny, Jonathan [VerfasserIn]
Contamin, Claudine [VerfasserIn]
Courivaud, Cecile [VerfasserIn]
Duquennoy, Simon [VerfasserIn]
Garcia, Hugo [VerfasserIn]
Joly, Dominique [VerfasserIn]
Goumri, Nabila [VerfasserIn]
Hanouna, Guillaume [VerfasserIn]
Halimi, Jean Michel [VerfasserIn]
Plaisier, Emmanuelle [VerfasserIn]
Hamidou, Mohamed [VerfasserIn]
Landron, Cédric [VerfasserIn]
Launay, David [VerfasserIn]
Lebas, Celine [VerfasserIn]
Legendre, Mathieu [VerfasserIn]
Masseau, Agathe [VerfasserIn]
Mathian, Alexis [VerfasserIn]
Mercadal, Lucile [VerfasserIn]
Morel, Nathalie [VerfasserIn]
Mutinelli-Szymanski, Prisca [VerfasserIn]
Palat, Sylvain [VerfasserIn]
Pennaforte, Jean-Loup [VerfasserIn]
Peraldi, Marie Noelle [VerfasserIn]
Pozdzik, Agnieszka [VerfasserIn]
Schleinitz, Nicolas [VerfasserIn]
Thaunat, Olivier [VerfasserIn]
Titeca-Beauport, Dimitri [VerfasserIn]
Mussini, Charlotte [VerfasserIn]
Touati, Sonia [VerfasserIn]
Prinz, Eric [VerfasserIn]
Faller, Anne Laure [VerfasserIn]
Richter, Sarah [VerfasserIn]
Vilaine, Eve [VerfasserIn]
Ferlicot, Sophie [VerfasserIn]
Von-Kotze, Clarissa [VerfasserIn]
Belliere, Julie [VerfasserIn]
Olagne, Jerome [VerfasserIn]
Mesbah, Rafik [VerfasserIn]
Snanoudj, Renaud [VerfasserIn]
Nouvier, Mathilde [VerfasserIn]
Ebbo, Mikael [VerfasserIn]
Zaidan, Mohamad [VerfasserIn]

Links:

Volltext

Themen:

4F4X42SYQ6
Immunoglobulin G
Journal Article
Observational Study
Rituximab

Anmerkungen:

Date Completed 09.08.2023

Date Revised 12.10.2023

published: Print-Electronic

CommentIn: Clin J Am Soc Nephrol. 2023 Aug 1;18(8):994-996. - PMID 37418275

Citation Status MEDLINE

doi:

10.2215/CJN.0000000000000193

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM357853237