Impact of Glucocorticoid Dose on Complete Response, Serious Infections, and Mortality During the Initial Therapy of Lupus Nephritis: A Systematic Review and Meta-Analysis of the Control Arms of Randomized Controlled Trials.

Figueroa-Parra, Gabriel;Cuéllar-Gutiérrez, María C;González-Treviño, Mariana;Sanchez-Rodriguez, Alain;Duarte-García, Alí;et.al.
(2024) Arthritis & Rheumatology — Vol. 76, n° 9, p. 1408-1418 (2024)

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Authors
  • Figueroa-Parra, Gabrielorcid-logo
    Author
  • Cuéllar-Gutiérrez, María Corcid-logo
    Author
  • González-Treviño, Marianaorcid-logo
    Author
  • Sanchez-Rodriguez, Alainorcid-logo
    Author
  • Houssiau, Frédéricorcid-logoUCLouvain
    Author
  • Tamirou, FarahUCLouvain
    Author
  • Duarte-García, Alíorcid-logo
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Abstract
OBJECTIVE: Our objective was to evaluate the effect of glucocorticoid regimens on renal response, infections, and mortality among patients with lupus nephritis (LN). METHODS: We performed a systematic review and meta-analysis of the control arms of randomized clinical trials (RCTs). We included RCTs of biopsy-proven LN that used a protocolized regimen of glucocorticoids in combination with mycophenolic acid analogs or cyclophosphamide and reported the outcomes of complete response (CR), serious infections, and death. The starting dosage of glucocorticoids, tapering method, and administration of glucocorticoid pulses were abstracted. Meta-analysis of proportions, meta-regression, and subgroup meta-analysis were performed at 6 and 12 months for all outcomes. RESULTS: Fifty RCT arms (3,231 patients with LN) were included. The predicted rates of CR, serious infections, and death when starting on oral prednisone at 25 mg/day without pulses were 19.5% (95% confidence interval [CI] 7.3-31.5), 3.2% (95% CI 2.4-4.0), and 0.2% (95% CI 0.0-0.4), respectively. Starting on prednisone at 60 mg/day (without pulses) increased the rates to 34.6% (95% CI 16.9-52.3), 12.1% (95% CI 9.3-14.9), and 2.7% (95% CI 0.0-5.3), respectively. Adding glucocorticoid pulses increased the rates of CR and death but not serious infections. We observed a dose-response gradient between the initial glucocorticoid dosage and all the outcomes at six months after accounting for the administration of glucocorticoid pulses, underlying immunosuppressant, and baseline proteinuria. CONCLUSION: A higher exposure to glucocorticoids during the initial therapy of LN was associated with better renal outcomes at the cost of increased infections and death.
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Figueroa-Parra, G., Cuéllar-Gutiérrez, M. C., González-Treviño, M., Sanchez-Rodriguez, A., Flores-Gouyonnet, J., Meade-Aguilar, J. A., Prokop, L. J., Murad, M. H., Dall’Era, M., Rovin, B. H., Houssiau, F., Tamirou, F., Fervenza, F. C., Crowson, C. S., Putman, M. S., & Duarte-García, A. (2024). Impact of Glucocorticoid Dose on Complete Response, Serious Infections, and Mortality During the Initial Therapy of Lupus Nephritis: A Systematic Review and Meta-Analysis of the Control Arms of Randomized Controlled Trials. Arthritis & Rheumatology, 76(9), 1408-1418. https://doi.org/10.1002/art.42920 (Original work published 2024)