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Contemp Clin Trials Commun. 2017 Dec;8:90-98. doi: 10.1016/j.conctc.2017.09.003. Epub 2017 Sep 14.

The Effect of a Vegan versus AHA DiEt in Coronary Artery Disease (EVADE CAD) trial: study design and rationale.

Author information

1
Department of Medicine (Cardiology), New York University (NYU) School of Medicine, New York, NY.
2
Department of Medicine (Cardiology), Veterans Affairs New York Harbor Healthcare System: Manhattan Campus, New York, NY.
3
Department of Population Health (Biostatistics), NYU School of Medicine, New York, NY.
4
Department of Nutrition and Food Studies, NYU Steinhardt, New York, NY.

Abstract

Background:

Multiple studies demonstrate the benefit of a vegan diet on cardiovascular risk factors when compared to no intervention or usual dietary patterns. The aim of this study is to evaluate the effect of a vegan diet versus the American Heart Association (AHA)-recommended diet on inflammatory and glucometabolic profiles in patients with angiographically defined coronary artery disease (CAD).

Study Design:

This study is a randomized, open label, blinded end-point trial of 100 patients with CAD as defined by ≥50% diameter stenosis in a coronary artery ≥2 mm in diameter on invasive angiography. Participants are randomized to 8 weeks of either a vegan or AHA-recommended diet (March 2014 and February 2017). Participants are provided weekly groceries that adhere to the guidelines of their diet. The primary endpoint is high sensitivity C-reactive concentrations. Secondary endpoints include anthropometric data, other markers of inflammation, lipid parameters, glycemic markers, endothelial function, quality of life data, and assessment of physical activity. Endpoints are measured at each visit (baseline, 4 weeks, and 8 weeks). Dietary adherence is measured by two weekly 24-hour dietary recalls, a 4-day food record during the week prior to each visit, and both plasma and urine levels of trimethylamine-N-oxide at each visit.

Conclusion:

This study is the first to comprehensively assess multiple indices of inflammation and glucometabolic profile in a rigorously conducted randomized trial of patients with CAD on a vegan versus AHA-recommended diet.

KEYWORDS:

Diet intervention; coronary artery disease; glucose; inflammation; lipids

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