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AIM: To assess the long-term clinical benefits of early combination treatment with vildagliptin-metformin vs. standard-of-care, metformin monotherapy in the ongoing VERIFY study. METHODS: We randomized 2001 participants with multi-ethnic background, aged 18-70 years, having HbA1c levels 48-58 mmol/mol (6.5-7.5%) and BMI 22-40 kg/m2 . Baseline data included HbA1c , fasting plasma glucose and homeostasis model β-cell and insulin sensitivity. Standardized meal-tests, insulin secretion rate relative to glucose, and oral glucose insulin sensitivity were assessed in a subpopulation. RESULTS: Out of 4524 screened, data were collected from the 2001 eligible participants (53% women) across Europe (52.4%), Latin America (26.8%), Asia (17.2%), South Africa (3.1%) and Australia (0.5%). The median (interquartile range) disease duration was 3.4 (0.9, 10.2) months; mean (±SD) age 54.3±9.4 years; weight 85.5±17.5 kg and BMI 31.1±4.7 kg/m2 . Baseline HbA1c was 52±3 mmol/mol (6.9±0.3%), fasting plasma glucose 7.5±1.5 mmol/l and the median (interquartile range) of fasting insulin was 109 (75-160) mU/l. Homeostasis model β-cell and insulin sensitivity values were 84% (60, 116) and 46% (31, 68), respectively. In those undertaking meal-tests, insulin secretion rate relative to glucose was 28±12 pmol/min/m2 /mmol/l and oral glucose insulin sensitivity was 353±57 ml/min/m2 . CONCLUSIONS: Our current, multi-ethnic, newly diagnosed VERIFY population reflects a characteristic presence of early insulin resistance in participants with increased demand for insulin associated with obesity. The VERIFY study will provide unique evidence in characterizing therapeutic intervention in a diverse population with hyperglycaemia, focusing on durability of early glycaemic control.

Original publication

DOI

10.1111/dme.13886

Type

Journal article

Journal

Diabet Med

Publication Date

04/2019

Volume

36

Pages

505 - 513

Keywords

Adolescent, Adult, Aged, Blood Glucose, Diabetes Mellitus, Type 2, Drug Therapy, Combination, Female, Glycated Hemoglobin A, Humans, Insulin Resistance, Insulin-Secreting Cells, Male, Metformin, Middle Aged, Time Factors, Vildagliptin, Young Adult