Case Report: Successful telitacicept treatment for IgA nephropathy with stage 4 chronic kidney disease and acute renal failure - Report - MDSpire

Case Report: Successful telitacicept treatment for IgA nephropathy with stage 4 chronic kidney disease and acute renal failure

  • By

  • Fang Zeng

  • Fei Tan

  • Dehui Liu

  • Fang Wang

  • July 14, 2026

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Clinical Report: Effective Use of Telitacicept in Managing IgA Nephropathy

Overview

This case study presents a 47-year-old male with stage 4 chronic kidney disease and IgA nephropathy treated with telitacicept. After 18 months of treatment, improvements were observed in proteinuria and estimated glomerular filtration rate (eGFR).

Background

IgA nephropathy (IgAN) is a prevalent form of primary glomerulonephritis that can lead to renal failure, necessitating renal replacement therapy. Current treatments for IgAN are limited, particularly for patients with advanced chronic kidney disease. Telitacicept, an APRIL and BAFF inhibitor, has shown potential in managing IgAN, but its efficacy in patients with severe kidney impairment requires further investigation.

Data Highlights

ParameterBefore TreatmentAfter Treatment
Proteinuria (g/day)2.820.60
eGFR (mL/min/1.73 m²)26.9535.69
Serum AlbuminDecreasedIncreased
HematuriaNot specifiedDecreased

Key Findings

  • The patient showed a reduction in proteinuria from 2.82 g/day to 0.60 g/day after treatment with telitacicept.
  • eGFR improved from 26.95 to 35.69 mL/min/1.73 m² over 18 months.
  • Serum albumin levels increased during the treatment period.
  • No infections or adverse events were reported during the treatment with telitacicept.
  • Immunoglobulin and lymphocyte levels decreased, while inflammatory markers remained stable.

Clinical Implications

Further research is warranted to confirm these results and explore the applicability of telitacicept in this patient population.

Conclusion

This case highlights the use of telitacicept in managing IgAN in a patient with stage 4 chronic kidney disease.

Related Resources & Content

  1. Frontiers in Immunology, 2026 -- Comparative effectiveness of budesonide EC and telitacicept in proteinuria and eGFR trajectories in IgA nephropathy
  2. Frontiers in Immunology, 2026 -- Recurrence of IgA nephropathy in a kidney transplant patient successfully treated with iptacopan—a case report
  3. conexiant, FDA Approves Atacicept for IgA Nephropathy
  4. KDIGO 2025 -- Executive summary of the KDIGO 2025 Clinical Practice Guideline for the Management of Immunoglobulin A Nephropathy (IgAN) and Immunoglobulin A Vasculitis (IgAV)
  5. PMC, Randomized Phase 2 Trial of Telitacicept in Patients With IgA Nephropathy With Persistent Proteinuria
  6. Frontiers in Medicine — Case Report: Sintilimab-Associated Acute Interstitial Nephritis in a Patient with Severe Thrombocytopenia: Clinical Diagnosis and Treatment Strategy When Renal Biopsy Is Contraindicated
  7. Executive summary of the KDIGO 2025 Clinical Practice Guideline for the Management of Immunoglobulin A Nephropathy (IgAN) and Immunoglobulin A Vasculitis (IgAV)
  8. Randomized Phase 2 Trial of Telitacicept in Patients With IgA Nephropathy With Persistent Proteinuria - PMC
  9. A Phase 3 Trial of Atacicept in Patients with IgA Nephropathy | New England Journal of Medicine

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