Predictors of response and relapse in patients with idiopathic membranous nephropathy treated with tacrolimus

Jara Caro1, Elena Gutiérrez-Solís1, Jorge Rojas-Rivera2

  • 1Hospital Universitario 12 de Octubre, Madrid, Spain.

Insights

Tacrolimus monotherapy effectively treats idiopathic membranous nephropathy (MN), achieving high remission rates. However, relapses are common, particularly in patients with partial remission, and can be reduced by extending the tacrolimus tapering period.

Area of Science:

  • Nephrology
  • Immunosuppressive therapy

Background:

  • Idiopathic membranous nephropathy (MN) treatment guidelines recommend tacrolimus.
  • Factors influencing tacrolimus response and relapse in MN remain unclear.

Purpose of the Study:

  • To investigate factors affecting response and relapse in idiopathic membranous nephropathy patients treated with tacrolimus.
  • To evaluate the efficacy and safety of tacrolimus monotherapy for MN.

Main Methods:

  • A multicenter study involving 122 MN patients with nephrotic syndrome and stable renal function.
  • Patients received tacrolimus treatment for an average of 17.6 months, including full-dose and tapering phases.

Main Results:

  • Remission rates reached 84% at 18 months; lower baseline proteinuria predicted better remission.
  • Forty-four percent of responders relapsed, with higher proteinuria at tapering onset and shorter tapering periods predicting relapse.
  • Tacrolimus demonstrated good tolerance with few adverse events.

Conclusions:

  • Tacrolimus monotherapy is effective and safe for MN in patients with stable renal function.
  • Frequent relapses in partial remission patients can be mitigated by a longer tacrolimus tapering duration.
Abstract

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