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Updated: Aug 15, 2026

Biochemical Titration of Glycogen In vitro
Published on: November 24, 2013
Development of a reference system for the international standardization of HbA1c/glycohemoglobin determinations
Insights
International standardization of glycohemoglobin (HbA1c) measurements is crucial for accurate diabetes care due to poor method comparability. The IFCC is developing a reference system to standardize all glycohemoglobin assays globally.
Area of Science:
- Clinical Chemistry
- Laboratory Medicine
- Diabetes Mellitus Research
Background:
- Glycohemoglobin (HbA1c) measurements are vital for diabetes management.
- Current methods show poor comparability between clinical laboratories.
- This variability hinders accurate patient monitoring and treatment.
Purpose of the Study:
- To address the critical need for international standardization of glycohemoglobin assays.
- To establish a unified reference system for consistent HbA1c testing worldwide.
- To improve the reliability and comparability of diabetes diagnostic results.
Main Methods:
- Development of a reference system by the IFCC working group on HbA1c standardization.
- Focus on HbA1c as the primary, biochemically defined glycohemoglobin.
- Inclusion of primary and secondary reference materials, a reference method, and adjusted values.
Main Results:
- The IFCC is establishing a comprehensive reference system for HbA1c standardization.
- This system aims to ensure consistency across different laboratory methods.
- The goal is to provide a basis for harmonizing glycohemoglobin measurements globally.
Conclusions:
- A robust international standardization system for glycohemoglobin is essential.
- The IFCC's reference system will enhance the accuracy and comparability of diabetes care.
- This initiative will ultimately benefit patients through more reliable diagnostic testing.
Abstract:
The essential role of glycohemoglobin measurements in diabetes care and the currently poor comparability of results between different methods used in clinical laboratories makes an international standardization absolutely necessary. The IFCC working group on HbA1c standardization is going to develop a reference system for the international standardization which is based on HbA1c as the biochemically well-defined major glycohemoglobin component, and consisting of primary and secondary reference materials, a reference method and adjusted reference and target values. The system will serve for the standardization of all glycohemoglobin assays.

