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AIMS: Durability of good glycaemic control (HbA1c ) is of importance as it can be the foundation for delaying diabetic complications. It has been hypothesized that early initiation of treatment with the combination of oral anti-diabetes agents with complementary mechanisms of action can increase the durability of glycaemic control compared with metformin monotherapy followed by a stepwise addition of oral agents. Dipeptidyl peptidase-4 inhibitors are good candidates for early use as they are efficacious in combination with metformin, show weight neutrality and a low risk of hypoglycaemia. We aimed to test the hypothesis that early combined treatment of metformin and vildagliptin slows β-cell deterioration as measured by HbA1c . METHODS: Approximately 2000 people with Type 2 diabetes mellitus who were drug-naive or who were treated with metformin for less than 1 month, and who have HbA1c of 48-58 mmol/mol (6.5-7.5%), will be randomized in a 1:1 ratio in VERIFY, a 5-year multinational, double-blind, parallel-group study designed to compare early initiation of a vildagliptin-metformin combination with standard-of-care initiation of metformin monotherapy, followed by the stepwise addition of vildagliptin when glycaemia deteriorates. Further deterioration will be treated with insulin. The primary analysis for treatment failure will be from a Cox proportional hazard regression model and the durability of glycaemic control will be evaluated by assessing treatment failure rate and the rate of loss in glycaemic control over time as co-primary endpoints. SUMMARY: VERIFY is the first study to investigate the long-term clinical benefits of early combination treatment vs. the standard-of-care metformin monotherapy with a second agent added by threshold criteria.

Original publication

DOI

10.1111/dme.12508

Type

Journal article

Journal

Diabet Med

Publication Date

10/2014

Volume

31

Pages

1178 - 1184

Keywords

Adamantane, Adolescent, Adult, Aged, Body Mass Index, Diabetes Mellitus, Type 2, Dipeptidyl-Peptidase IV Inhibitors, Double-Blind Method, Drug Therapy, Combination, Glycated Hemoglobin A, Humans, Hyperglycemia, Hypoglycemic Agents, Intention to Treat Analysis, Metformin, Middle Aged, Nitriles, Obesity, Overweight, Pyrrolidines, Research Design, Vildagliptin, Young Adult