Glitazones and Endothelial Function (GATE)
The purpose of the study is to determine if the addition of rosiglitazone to subjects with fair glucose control on other oral agents improves endothelial function, a surrogate marker of vascular health.
It is hypothesized that improving whole body insulin sensitivity with combination therapy including rosiglitazone will restore the vascular actions of insulin and improve endothelium-dependent vasomotion more effectively than placebo in patients with diabetes mellitus.
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
|Official Title:||A Trial of the Effect of Rosiglitazone as Add on to Metformin Therapy on Endothelial Function in Subjects With Type II DM|
- The primary end-point of the study is the percent change in forearm blood flow to acetylcholine in patients randomized to rosiglitazone compared with placebo.
- Secondary end-points include (i) the percent change in forearm blood flow to verapamil and the absolute change to both acetylcholine and verapamil and (ii) the relationship between HOMA-IR, CRP and endothelial function.
|Study Start Date:||September 2003|
|Study Completion Date:||October 2007|
Please refer to this study by its ClinicalTrials.gov identifier: NCT00203632
|Foothills Medical Centre|
|Calgary, Alberta, Canada, T2N 2T9|
|Principal Investigator:||Todd J Anderson, MD||University of Calgary|
|Study Chair:||Subodh Verma, MD, PhD||University of Toronto|