Study highlights need for blood glucose monitoring system accuracy

By Editor
21st February 2020
Self-monitoring of blood glucose, Technology Type 1 diabetes

The importance of accuracy among blood glucose monitoring systems (BGMSs) has been highlighted in study findings unveiled at the International Conference on Advanced Technologies & Treatments for Diabetes (ATTD) 2020.

At the Madrid event, Ascensia presented data from a research paper that assessed the performance of BGMSs when used with mobile applications (apps) for diabetes management.

The oral presentation highlighted the challenges of hypoglycaemia management using apps and demonstrated that not all BGMSs using apps are capable of detecting low blood sugar levels with a high probability, which has the potential to make them less effective in supporting glycemic control.

We want to be at the forefront of scientific excellence in assessing the quality of diabetes devices and digital solutions Dr Sabina Furber, Chief Medical Officer at Ascensia Diabetes Care

Apps for type 1 and type 2 diabetes management often rely on data from glucose monitoring devices, such as BGMSs. These apps are designed to provide support that can help to reduce the occurrence of hypoglycaemia and enable more effective glycemic control.

Quality and accuracy

Therefore, the performance of these apps in hypoglycaemia management is dependent on the quality and accuracy of the data from the BGMSs, particularly in the low blood glucose range (LBGR: ≤70 mg/dl).

For this study, researchers used a statistical model applied to real BGMS data to calculate the probability of achieving ±15% of a reference blood glucose (BG) value of 50 mg/dl for a variety of available BGMSs that can link to apps for diabetes management.

The BGMSs included were CONTOUR®NEXT ONE (CNO), Accu-Chek Aviva Connect, FreeStyle Freedom Lite, GlucoMen Areo and OneTouch Verio.

Based on this analysis in the LBGR, the probability of achieving ±15% of the reference BG value of 50 mg/dl for CNO was above 95%, whereas it was below 95% for some of the other BGMSs studied. Specifically, CNO’s predicted BG value was 50.74mg/dL, with a 95% confidence interval of ±3.25 mg/dL. This analysis shows that BGMS selection is critical in assessing the effectiveness of apps for glycaemic control and hypoglycaemia detection.

These results follow two recent studies that demonstrate the accuracy of products in the CONTOUR® portfolio in the LBGR, which are also being presented as posters at ATTD 2020.

These two studies also used data from clinical trials applied to a linear regression model to calculate the likelihood of accurate BGMS performance in the LBGR. These assessments showed that the CNO, CONTOUR®PLUS (CP) and CONTOUR®PLUS ONE (CPO) BGMSs maintained high levels of accuracy in the LGBR, which is important for safe and effective diabetes management. The probability of having results within ±15% of the reference BG values was >95% for all three systems, and was in contrast to other systems included in these studies.

James Richardson, Medical Lead BGM – Mature Markets at Ascensia Diabetes Care, said: “It’s a privilege to be invited to present these important findings to the diabetes community at ATTD 2020, which is a first for Ascensia. We believe these studies are of great clinical importance to people with diabetes, as the results show that accurate blood glucose data is critical for effective use of diabetes management apps.”

Dr Sabina Furber, Chief Medical Officer at Ascensia Diabetes Care, added: “These findings demonstrate the importance of the accuracy of blood glucose monitoring systems in the low blood glucose range where the risks to health are the highest and the impact of accuracy on the effectiveness of diabetes management apps.

“We want to be at the forefront of scientific excellence in assessing the quality of diabetes devices and digital solutions. These data further validate the accuracy of Ascensia’s world-renowned CONTOUR® product portfolio, which many people depend upon to manage their diabetes.”

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