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Comparator Data Characteristics and Testing Procedures for the Clinical Performance Evaluation of Continuous Glucose
Manuel Eichenlaub1, Stefan Pleus1,2, Martina Rothenbühler3
1Institut für Diabetes-Technologie, Forschungs- und Entwicklungsgesellschaft mbH an der Universität Ulm, Ulm, Germany.
Diabetes Technology & Therapeutics
|January 9, 2024
Summary
Standardizing continuous glucose monitoring (CGM) performance testing requires specific data distributions for reference blood glucose (BG) and its rate of change (RoC). This ensures accurate evaluation across different CGM systems in real-world scenarios.
Area of Science:
- Medical Devices
- Biomedical Engineering
- Clinical Research
Background:
- Evaluating continuous glucose monitoring (CGM) systems is hindered by inconsistent clinical study designs.
- A lack of standardized requirements for reference blood glucose (BG) concentration and rate of change (RoC) data distribution limits comparability between CGM performance studies.
Purpose of the Study:
- To propose essential characteristics for the distribution of comparator BG concentrations and RoC data in CGM performance testing.
- To facilitate harmonization of testing conditions and ensure evaluation covers critical real-life glycemic scenarios.
Main Methods:
- Expert collaboration to define key data distribution parameters for CGM performance testing.
- Proposal for specific percentages of comparator BG values in low (<70 mg/dL) and high (>300 mg/dL) ranges.
- Recommendation for including specific percentages of BG-RoC combinations representing rapid glucose fluctuations.
Main Results:
- Proposed criteria include at least 7.5% of comparator BG concentrations below 70 mg/dL and above 300 mg/dL.
- Proposed criteria include at least 7.5% of BG-RoC combinations indicating impending hypoglycemia or hyperglycemia.
- A study protocol and glucose manipulation procedure are suggested to achieve these data characteristics.
Conclusions:
- The proposed comparator data characteristics can standardize CGM performance testing protocols.
- Harmonized testing conditions will improve the reliability and comparability of CGM system evaluations.
- This work represents a significant advancement towards establishing a future standard for CGM performance assessment.
