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Citation

Morris D, Cunningham M, Ahimastos AA, Kingwell BA, Pappas E, Bourke M, Reid CM, Stijnen T, Dalman RL, Aalami OO, Lindeman JH, Norman PE, Walker PJ, Fitridge R, Bourke B, Dear AE, Pinchbeck J, Jaeggi R & Golledge J (2015) TElmisartan in the management of abDominal aortic aneurYsm (TEDY): The study protocol for a randomized controlled trial. Trials, 16, Art. No.: 274. https://doi.org/10.1186/s13063-015-0793-z

Abstract
Background  Experimental studies suggest that angiotensin II plays a central role in the pathogenesis of abdominal aortic aneurysm. This trial aims to evaluate the efficacy of the angiotensin receptor blocker telmisartan in limiting the progression of abdominal aortic aneurysm.  Methods/Design  Telmisartan in the management of abdominal aortic aneurysm (TEDY) is a multicentre, parallel-design, randomised, double-blind, placebo-controlled trial with an intention-to-treat analysis. We aim to randomly assign 300 participants with small abdominal aortic aneurysm to either 40 mg of telmisartan or identical placebo and follow patients over 2 years. The primary endpoint will be abdominal aortic aneurysm growth as measured by 1) maximum infra-renal aortic volume on computed tomographic angiography, 2) maximum orthogonal diameter on computed tomographic angiography, and 3) maximum diameter on ultrasound. Secondary endpoints include change in resting brachial blood pressure, abdominal aortic aneurysm biomarker profile and health-related quality of life. TEDY is an international collaboration conducted from major vascular centres in Australia, the United States and the Netherlands.  Discussion  Currently, no medication has been convincingly demonstrated to limit abdominal aortic aneurysm progression. TEDY will examine the potential of a promising treatment strategy for patients with small abdominal aortic aneurysms.  Trial registration  Australian and Leiden study centres: Australian New Zealand Clinical Trials RegistryACTRN12611000931976, registered on 30 August 2011; Stanford study centre: clinicaltrials.govNCT01683084, registered on 5 September 2012.

Keywords
Abdominal aortic aneurysm; Trial; Angiotensin; Telmisartan

Journal
Trials: Volume 16

• Morris 2015.pdf