Do not use continuous glucose monitoring systems in patients with type 2 diabetes who are not treated with insulin.

Oct 17, 2018

Do not use continuous glucose monitoring systems in patients with type 2 diabetes who are not treated with insulin.

Type of practice

Other tests

Age

Adult, Geriatric

Topic Area

Clinical Pharmacy and Therapy
Current evidence on continuous glucose monitoring (CGM) in type 2 diabetes is limited and of low quality. Available studies suggest only a modest improvement in HbA1c levels with CGM, without an increased risk of hypoglycemia. There is no robust evidence to support the superiority of CGM over capillary blood glucose monitoring for glycemic control in patients on basal-bolus insulin therapy. Moreover, some data indicate that CGM may negatively impact quality of life in certain patients.
Based on the current evidence, CGM in patients with type 2 diabetes receiving multiple daily insulin injections should be considered only in the following situations:
  • recurrent or severe hypoglycemia;
  • impaired awareness of hypoglycemia;
  • a condition or disability (including learning disorders or cognitive impairment) that prevents self-monitoring of blood glucose using capillary testing;
  • requirement for at least eight self-monitoring’s per day.

Sources

1. NICE guideline. Type 2 diabetes in adults: management. Last updated: 29 June 2022 – https://www.nice.org.uk/guidance/ng28.
2. Aggiornamento Linee Guida della Società Italiana di Diabetologia (SID) e dell’Associazione dei Medici Diabetologi (AMD) - La terapia del diabete mellito di tipo 2 - Versione aggiornata a dicembre 2022
3. Martens T, Beck RW, Bailey R et al. Effect of Continuous Glucose Monitoring on Glycemic Control in Patients With Type 2 Diabetes Treated With Basal Insulin: A Randomized Clinical Trial. JAMA. 2021;325:2262-2272. doi: 10.1001/jama.2021.7444
4. Davies MJ, Aroda VR, Collins BS et al. Management of hyperglycaemia in type 2 diabetes, 2022. A consensus report by the American Diabetes Association (ADA) and the European Association for the Study of Diabetes (EASD). Diabetologia 2022;65: 1925-1966. doi: 10.2337/dci22-0034

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Attention. Please note that these items are provided only for information and are not intended as a substitute for consultation with a clinician. Patients with any specific questions about the items on this list or their individual situation should consult their clinician.