- Cardiovascular
- Trials closed
DSSita-02
The effect of sitagliptin on myocardial performance in patients with type 2 diabetes and coronary artery disease
Research summary
An inadequate supply of oxygen to the heart, due to narrowed coronary arteries, may result in impaired contractile performance during exercise. The use of glucose rather than fat as the major energy source may enable the heart to continue pumping normally despite the constrained delivery of oxygen. Glucagon-like peptide-1 (GLP-1) has been shown to promote myocardial glucose use. The breakdown of GLP-1 can be inhibited by sitagliptin (Januvia, MSD) which is licensed for the treatment of type 2 diabetes. We have shown that a single dose of sitagliptin produces an acute improvement in cardiac performance on exercise in patients with coronary disease. This study will assess whether a longer period of treatment with sitagliptin for 4 weeks will produce a chronic improvement in myocardial performance in patients with type 2 diabetes.
Main inclusion criteria
- Type 2 diabetes on treatment with metformin, a sulphonylurea or a thiazolidinedione
- Known coronary artery disease
- Good left ventricular function
- Sinus rhythm
Main exclusion criteria
- Type 1 diabetes
- Treatment with insulin, exenatide, sitagliptin or vildagliptin
- Renal impairment (creat > 175 micromol/l)
- Hepatic impairment
- Poor left ventricular function
- Atrial fibrillation
- Permanent pacemaker
- Significant valvular heart disease or other structural heart disease
Funders and sponsors
Funders: Merck Sharp & Dohme Ltd
Sponsors: Cambridge and Peterborough NHS Foundation Trust and University of Cambridge
Chief investigator
Dr David Dutka
Contact details
Senior Clinical Trials Coordinator:
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