1. Day-to-day fasting self-monitored blood glucose variability is associated with risk of hypoglycaemia in insulin-treated patients with type 1 and type 2 diabetes: A post hoc analysis of the SWITCH Trials.
- Author
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DeVries JH, Bailey TS, Bhargava A, Gerety G, Gumprecht J, Heller S, Lane W, Wysham CH, Zinman B, Bak BA, Hachmann-Nielsen E, and Philis-Tsimikas A
- Subjects
- Adolescent, Adult, Blood Glucose metabolism, Blood Glucose Self-Monitoring, Circadian Rhythm drug effects, Circadian Rhythm physiology, Cross-Over Studies, Diabetes Mellitus, Type 1 blood, Diabetes Mellitus, Type 1 complications, Diabetes Mellitus, Type 2 blood, Diabetes Mellitus, Type 2 complications, Double-Blind Method, Fasting physiology, Female, Humans, Hypoglycemia blood, Hypoglycemia diagnosis, Hypoglycemia etiology, Insulin Glargine administration & dosage, Insulin, Long-Acting administration & dosage, Male, Middle Aged, Multicenter Studies as Topic statistics & numerical data, Randomized Controlled Trials as Topic statistics & numerical data, Retrospective Studies, Risk Factors, Young Adult, Blood Glucose analysis, Diabetes Mellitus, Type 1 drug therapy, Diabetes Mellitus, Type 2 drug therapy, Fasting blood, Hypoglycemia chemically induced, Insulin Glargine adverse effects, Insulin, Long-Acting adverse effects
- Abstract
Aims: To investigate the association between day-to-day fasting self-monitored blood glucose (SMBG) variability and risk of hypoglycaemia in type 1 (T1D) and type 2 diabetes (T2D), and to compare day-to-day fasting SMBG variability between treatments with insulin degludec (degludec) and insulin glargine 100 units/mL (glargine U100)., Materials and Methods: Data were retrieved from two double-blind, randomized, treat-to-target, two-period (32 weeks each) crossover trials of degludec vs glargine U100 in T1D (SWITCH 1, n = 501) and T2D (SWITCH 2, n = 720). Available fasting SMBGs were used to determine the standard deviation (SD) of day-to-day fasting SMBG variability for each patient and the treatment combination. The association between day-to-day fasting SMBG variability and overall symptomatic, nocturnal symptomatic and severe hypoglycaemia was analysed for the pooled population using linear regression, with fasting SMBG variability included as a three-level factor defined by population tertiles. Finally, day-to-day fasting SMBG variability was compared between treatments., Results: Linear regression showed that day-to-day fasting SMBG variability was significantly associated with overall symptomatic, nocturnal symptomatic and severe hypoglycaemia risk in T1D and T2D (P < 0.05). Day-to-day fasting SMBG variability was significantly associated (P < 0.01) with all categories of hypoglycaemia risk, with the exception of severe hypoglycaemia in T2D when analysed within tertiles. Degludec was associated with 4% lower day-to-day fasting SMBG variability than glargine U100 in T1D (P = 0.0082) and with 10% lower day-to-day fasting SMBG variability in T2D (P < 0.0001)., Conclusions: Higher day-to-day fasting SMBG variability is associated with an increased risk of overall symptomatic, nocturnal symptomatic and severe hypoglycaemia. Degludec has significantly lower day-to-day fasting SMBG variability vs glargine U100., (© 2018 The Authors. Diabetes, Obesity and Metabolism published by John Wiley & Sons Ltd.)
- Published
- 2019
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