Cited by 329Systemic Lupus Erythematosus ResearchRenal Diseases and GlomerulopathiesRenal Transplantation Outcomes and Treatments

Predictors of long-term renal outcome in lupus nephritis trials: lessons learned from the Euro-Lupus nephritis cohort

Dall'Era, Maria, Cisternas, Miriam G., Smilek, Dawn E., Straub, Laura, Houssiau, Frédéric A., Cervera, Ricard, Rovin, Brad H., Mackay, Meggan·2015·Arthritis & Rheumatology

Abstract

OBJECTIVE: There is a need to determine which response measures in lupus nephritis trials are most predictive of good long-term renal function. We used data from the Euro-Lupus Nephritis Trial to evaluate the performance of proteinuria, serum creatinine (Cr), and urinary red blood cells (RBCs) as predictors of good long-term renal outcome. METHODS: Patients from the Euro-Lupus Nephritis Trial with proteinuria, serum Cr, and urinary RBC measurements at 3, 6, or 12 months and with a minimum of 7 years of followup were included (n = 76). We assessed the ability of these clinical biomarkers at 3, 6, and 12 months after randomization to predict good long-term renal outcome (defined as a serum Cr value ≤1.0 mg/dl) at 7 years. Receiver operating characteristic curves were generated to assess parameter performance at these time points and to select the best cutoff for individual parameters. Sensitivity and specificity were calculated for the parameters alone and in combination. RESULTS: A proteinuria value of <0.8 gm/day at 12 months after randomization was the single best predictor of good long-term renal function (sensitivity 81% and specificity 78%). The addition of serum Cr to proteinuria as a composite predictor did not improve the performance of the outcome measure; addition of urinary RBCs as a predictor significantly decreased the sensitivity to 47%. CONCLUSION: This study demonstrates that the level of proteinuria at 12 months is the individual best predictor of long-term renal outcome in patients with lupus nephritis. Inclusion of urinary RBCs as part of a composite outcome measure actually undermined the predictive value of the trial data. We therefore suggest that urinary RBCs should not be included as a component of clinical trial response criteria in lupus nephritis.

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Crossref · 10.1002/art.39026

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Authors
Dall'Era, M., Cisternas, M. G., Smilek, D. E., Straub, L., Houssiau, F. A., Cervera, R., Rovin, B. H., & Mackay, M.
Affiliations
  • University of California San Francisco
  • MGC Data Services Carlsbad California
  • Immune Tolerance Network (US)
  • Cliniques Universitaires Saint-Luc (BE)
  • Hospital Clínic de Barcelona (ES)
  • The Ohio State University Wexner Medical Center (US)
  • Feinstein Institute for Medical Research (US)
Venue
Arthritis & Rheumatology
Publisher
Wiley
Published
2015-04-27
Volume
67
Issue
5
Pages
1305-1313
ISSN
  • 2326-5191 (ISSN-L)
  • 2326-5205
OpenAlex
W2104259706
Cited by
329
References
24
Citations by year
2026: 29 · 2025: 39 · 2024: 26 · 2023: 31 · 2022: 42 · 2021: 41 · 2020: 24 · 2019: 19 · 2018: 26 · 2017: 18 · 2016: 21 · 2015: 12 · 2014: 1
FWCI
21.54
Type
journal article
Language
en
Open access
closed
Locations
  • Arthritis & Rheumatology (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Access to Libraries (submittedVersion)
Topics
  • Health Sciences › Medicine › Rheumatology › Systemic Lupus Erythematosus Research
  • Health Sciences › Medicine › Nephrology › Renal Diseases and Glomerulopathies
  • Health Sciences › Medicine › Transplantation › Renal Transplantation Outcomes and Treatments
Keywords
lupus nephritis, long-term renal outcomes, proteinuria, serum creatinine, urinary red blood cells, prognostic factors, renal function estimation
MeSH terms
Creatinine, Glucocorticoids, Hematuria, Humans, Longitudinal Studies, Lupus Nephritis, Proteinuria, ROC Curve, Cohort Studies, Biomarkers, Disease Progression, Renal Insufficiency, Chronic

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