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Heat-shock protein peptide DiaPep277 treatment in children with newly diagnosed type 1 diabetes: a randomised,
1The institute for Endocrinology and Diabetes, National Center of Childhood Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva, Israel.
Insights
DiaPep277 treatment is safe for children with recent-onset type 1 diabetes mellitus (T1DM). However, this peptide therapy did not preserve beta-cell function or improve metabolic control in the study.
Area of Science:
- Immunology
- Endocrinology
- Pediatrics
Background:
- Type 1 diabetes mellitus (T1DM) is an autoimmune disease targeting insulin-producing beta cells.
- DiaPep277, a heat-shock protein 60 (hsp60) derived peptide, showed promise in slowing beta-cell function decline in prior studies.
- Evaluating DiaPep277's efficacy in preserving beta-cell function in children with recent-onset T1DM is crucial.
Purpose of the Study:
- To assess the efficacy and safety of DiaPep277 in children with recent-onset T1DM.
- To determine if DiaPep277 can attenuate beta-cell destruction and improve metabolic control.
- To evaluate long-term outcomes of DiaPep277 treatment in pediatric T1DM.
Main Methods:
- Prospective, randomized, double-blind, phase II clinical trial.
- 30 children (7-14 years) with recent-onset T1DM received 1 mg DiaPep277 or placebo (mannitol) via subcutaneous injection.
- Follow-up was 18 months, comparing stimulated C-peptide, insulin dose, and HbA1c.
Main Results:
- C-peptide levels decreased similarly in both DiaPep277 and placebo groups.
- No significant differences were observed in insulin dose or HbA1c between treatment groups.
- No serious drug-related adverse effects were reported during the study.
Conclusions:
- One-year treatment with 1 mg DiaPep277 is safe and well-tolerated in children with recent-onset T1DM.
- DiaPep277 did not demonstrate a beneficial effect on preserving beta-cell function.
- The study found no improvement in metabolic control with DiaPep277 treatment in this pediatric population.
Background:
Type 1 diabetes mellitus (T1DM) is a T-cell-mediated autoimmune disease that leads to the destruction of insulin-producing beta cells. Treatment with DiaPep277, a peptide derived from heat-shock protein 60 (hsp60), has been found to slow the deterioration of beta-cell function after clinical onset of diabetes in NOD mice and human adults. Our aim was to evaluate the efficacy and safety of DiaPep277 treatment in attenuating beta-cell destruction in children with recent-onset T1DM.
Methods:
A prospective, randomized, double-blind, phase II design was used. The sample included 30 children (19 males) aged 7-14 years who had been diagnosed with T1DM from 53 to 116 days previously, and had basal C-peptide concentrations above 0.1 nmol/L. The children were randomized to receive subcutaneous injections of 1 mg DiaPep277 (15 patients) or 40 mg mannitol (placebo) at entry and at 1, 6, and 12 months. The duration of follow-up was 18 months. The groups were compared for stimulated C-peptide level, exogenous insulin dose, and HbA1c concentration.
Results:
C-peptide levels similarly decreased over time in the DiaPep277- and placebo-treated patients. There was no significant difference in insulin dose or HbA1c concentration between the groups at any time point. No serious drug-related adverse effects were recorded throughout the study period.
Conclusions:
One-year treatment with DiaPep277 at a dosage of 1 mg is safe for use and well tolerated in children with recent-onset T1DM. However, it appears to have no beneficial effect in preserving beta-cell function or improving metabolic control.
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