Journal
BMJ OPEN DIABETES RESEARCH & CARE
Volume 4, Issue 1, Pages -Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/bmjdrc-2016-000270
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- Novo Nordisk Canada
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Objective: In early type 2 diabetes (T2DM), short-term intensive insulin therapy (IIT) for 2-4 weeks can decrease insulin resistance, reduce glucagonemia, improve beta-cell function, and even induce a remission of diabetes that can last up to 1 year in some patients. However, little is known about the predictors of such a sustained remission. Methods: We evaluated data from the placebo arm of a double-blind randomized controlled trial in which patients with early T2DM (<= 7 years duration) underwent 4 weeks of IIT (basal detemir, bolus aspart), followed by placebo therapy for 48 weeks (n=25). Participants underwent an oral glucose tolerance test every 12 weeks, enabling serial assessment of insulin sensitivity, alpha-cell response, and beta-cell function. Diabetes remission was defined as A1c<6.5% on no medication for T2DM. Results: At 48 weeks post-IIT, 56% of the participants remained in remission. Comparison of remitters to non-remitters revealed no differences in waist, body mass index, insulin sensitivity (Matsuda index), or glucagon profile, either at baseline or over 48 weeks. Compared to non-remitters, the remission group had lower baseline A1c (p=0.006) and better baseline beta-cell function (Insulin Secretion-Sensitivity Index-2) (p=0.01) that was then sustained across 48 weeks post-IIT (p=0.006). On logistic regression analyses, however, shorter duration of diabetes supplanted baseline A1c (p=0.24) and beta-cell function (p=0.19) as an independent predictor of remission (p=0.04). In particular, diabetes duration <2 years predicted persistence of remission (p=0.006). Conclusions: The key determinant of the likelihood of inducing sustained drug-free diabetes remission with short-term IIT is early intervention, particularly within the first 2 years after diagnosis.
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