Frontiers in Pediatrics (Oct 2023)

Mycophenolate mofetil for autoimmune cytopenias in children: high rates of response in inborn errors of immunity

  • Rubén Berrueco,
  • Rubén Berrueco,
  • Rubén Berrueco,
  • Elisa González-Forster,
  • Elisa González-Forster,
  • Angela Deya-Martinez,
  • Angela Deya-Martinez,
  • Angela Deya-Martinez,
  • María Solsona,
  • María Solsona,
  • Ana García-García,
  • Ana García-García,
  • Ana García-García,
  • Joan Calzada-Hernández,
  • Luo Yiyi,
  • Luo Yiyi,
  • Alexandru Vlagea,
  • Alexandru Vlagea,
  • Anna Ruiz-Llobet,
  • Anna Ruiz-Llobet,
  • Anna Ruiz-Llobet,
  • Laia Alsina,
  • Laia Alsina,
  • Laia Alsina,
  • Laia Alsina

DOI
https://doi.org/10.3389/fped.2023.1174671
Journal volume & issue
Vol. 11

Abstract

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Second-line treatments of autoimmune cytopenias (AC) are not well-defined in children. Mycophenolate mofetil (MMF) is an immunosuppressant agent that has been demonstrated to be safe and effective in this setting. A retrospective observational study was conducted in 18 children with prolonged AC who received MMF, in order to describe clinical and biological markers of response. The overall response rate of MMF at 20–30 mg/kg per day was 73.3%. All patients with Evans syndrome (n = 9) achieved complete response. Among the patients with monolineage AC (n = 9), those with an underlying inborn errors of immunity (IEI), tended to respond better to MMF. No biological markers related to treatment response were found. Rather, lymphocyte subpopulations proved useful for patient selection as a marker suggestive of IEI along with immunoglobulin-level determination.

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