The majority of people with type 1 diabetes and multiple daily insulin injections benefit from using continuous glucose monitoring: An analysis based on the GOLD randomized trial (GOLD-5)

Authors: Arndís F Ólafsdóttir, Jan Bolinder, Tim Heise, William Polonsky, Magnus Ekelund, Magnus Wijkman, Aldina Pivodic, Elsa Ahlén, Erik Schwarcz, Thomas Nyström, Jarl Hellman, Irl B Hirsch, Marcus Lind

Abstract

Aim: To identify responders to continuous glucose monitoring (CGM) in relation to reductions in HbA1c and percentage of time spent in hypoglycaemia after initiation of CGM for individuals with type 1 diabetes treated with multiple daily insulin injections.

Materials and methods: We analysed data from 142 participants in the GOLD randomized clinical trial. We evaluated how many lowered their HbA1c by more than 0.4% (>4.7 mmol/mol) or decreased the time spent in hypoglycaemia over 24 hours by more than 20 or 30 minutes, and which baseline variables were associated with those improvements.

Results: Lower reduction of HbA1c was associated with greater reduction of hypoglycaemia (r = -0.52; P < .0001). During CGM, 47% of participants lowered their HbA1c values by more than 0.4% (>4.7 mmol/mol) than with self-measurement of blood glucose, and 47% decreased the time spent in hypoglycaemia by more than 20 minutes over 24 hours. Overall, 78% either reduced their HbA1c by more than 0.4% (>4.7 mmol/mol) or the time spent in hypoglycaemia by more than 20 minutes over 24 hours, but only 14% improved both. Higher HbA1c, a lower percentage of time at less than 3.0 or 3.9 mmol/L, a lower coefficient of variation (CV) and a higher percentage of time above 13.9 mmol/L (P = .016) were associated with greater HbA1c reduction during CGM. The variables associated with a greater reduction of time in hypoglycaemia were female sex, greater time with glucose levels at less than 3.0 mmol/L, higher CV, and higher hypoglycaemia confidence as evaluated by a hypoglycaemic confidence questionnaire.

Conclusion: The majority of people with type 1 diabetes managed by multiple daily insulin injections benefit from CGM; some experienced reduced HbA1c while others reduced the time spent in hypoglycaemia. These factors need to be considered by healthcare professionals and decision-makers for reimbursement and diabetes guidelines.

Source: https://pubmed.ncbi.nlm.nih.gov/33200487/

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BDI hosts the San Diego-wide, monthly case consultation meeting (for mental health professionals working in the field of diabetes). Contact us at [email protected] if you are in the greater San Diego area and would like further information about this program.

It will be a busy time for BDI staff at the American Diabetes Association’s 85th Scientific Sessions (Chicago, IL). Exciting new study results to be presented, new projects to be discussed, and old friends to see.

At the Abbott Diabetes Care booth at this years ADA Scientific Sessions in Chicago Il, Dr. Guzman, BDI Director of Clinical Education, will be moderating the panel discussion, Above the Bias.

At the American Diabetes Association’s 85th Scientific Sessions (Chicago, IL), Dr. Polonsky, BDI President, will be speaking on Tell Me Why—Using CGM to Drive Changes in Diabetes Self-Care. He also serves a co-author on six poster presentations on that day:

At the American Diabetes Association’s 85th Scientific Sessions (Chicago, IL), Dr. Fisher, BDI Research Director, will present Reducing Diabetes Distress Leads to Positive Glycemic Change—Results from the EMBARK Trial

August 8 – 10. Taking Control of Your Diabetes (TCOYD) will be hosting the in-person ONE event, an amazing weekend experience here in San Diego for more than 500 people with type 1 diabetes and their loved ones. Dr. Polonsky is honored to be one of the presenters, and we will hope to see many of you there. There are still a few spaces left, so if you’d like to know more, please visit: