Type 1 diabetes

Safety and efficacy of the therapy with CD4 + CD25highCD127 ‐T regulatory cells: When paediatric patient becomes adult

Diabetes Obes MetabPublished Long-term follow-up study of Treg therapy trials

Authors' conclusion

We confirmed the long-term safety and efficacy of the therapy. Due to the superior efficacy profile, the combined treatment with Tregs and antiCD20 antibody should be considered as a routine therapy for recent-onset type 1 diabetes patients.

Study context

Population
Participants of three trials of Tregs in recently diagnosed T1D children, re-examined 7.5–12 years after Treg exposure
Participants
51 participants
Comparison
Tregs vs standard of care
  • Tregs+antiCD20n = 9
  • Tregs 1 dosen = 10
  • Tregs 2 dosesn = 8
  • SoC controln = 24reference
Methodological detailsOver 700 variables analysed
  • Over 700 variables analysed

Primary result

As reported in the abstract

Long-term efficacy: C-peptide secretion in mixed-meal tolerance test, time of insulin independence and remission
  • Tregs+antiCD20 superior to SoC control in C-peptide secretion in mixed-meal tolerance test, time of insulin independence and remission
  • No clinically relevant between-group differences in other examinations

Safety

No severe adverse effects including tumors or deaths reported

Original publication

Safety and efficacy of the therapy with CD4 + CD25highCD127 ‐T regulatory cells: When paediatric patient becomes adult. Diabetes Obes Metab. Published 26 November 2025. doi:10.1111/dom.70330

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