Skip To Main Content
  • Resource
  • BR1DGE
  • Infographic
  • Management
  • Pathophysiology

The Importance of C-peptide in Autoimmune T1D

An infographic summarising C-peptide, a key biomarker of beta-cell function 

Learning Objectives

  • Understand that C-peptide is a by-product of insulin synthesis
  • Recognize C-peptide's role in understanding disease status in T1D
  • Appreciate C-peptide's potential as a diagnostic and prognostic tool 

C-peptide is a key tool in autoimmune type 1 diabetes (T1D) management. It aids diagnosis, disease monitoring, and is a key biomarker for beta-cell function and endogenous insulin secretion. C-peptide measurement during a mixed-meal tolerance test is the gold standard for assessing beta-cell function. Residual C-peptide predicts positive outcomes, fewer diabetes-related complications, and improved glycemic control, meaning C-peptide can potentially guide early interventions to delay or prevent the clinical onset of T1D. 

MAT-GLB-2503049 - 1.0 - 09/2025 

Similar Content