The Impact of Omega Three Fatty Acids on Vascular Function in HIV

Status Completed

Clinical Trial Summary

The study seeks to determine if the use of omega three fatty acids in individuals infected with HIV and with high triglycerides leads to improved triglyceride levels, better blood vessel function and decrease in the amount of obstruction in blood vessels.

Clinical Trial Description

While omega-three fatty acids have been shown to be beneficial for triglycerides (TG) and HDL-C levels in HIV uninfected individuals and in some small, short duration studies in HIV-infected individuals, there are no data that extend these observations to determine whether intake of omega-three fats over a more prolonged time period will also have a beneficial impact on functional outcomes such as vascular endothelial function and anatomic surrogate markers of cardiovascular disease (CVD) in HIV-infected patients.

We propose a randomized, double blind trial of purified omega-three fatty acids in HIV-infected individuals with elevated levels of triglycerides. While the impact of omega-three fatty acids on lipid profiles should be evident early (within 12 weeks); we propose to conduct this trial for a full 24 months to test our overall hypothesis that this intervention will not only improve triglyceride and HDL-C levels, improve HDL-subpopulations, plasma and membrane phospholipids and decrease inflammation, but will also improve brachial artery reactivity testing (BART) as a measure of vascular endothelial function at 24 weeks and 24 months and arterial stiffness measured by a pulse wave velocity test as a surrogate marker of CVD risk at 24 months when compared to controls.

The specific aims of this proposal include:

1. To conduct a randomized, placebo controlled trial of omega-three fatty acids over 24 months in HIV-infected individuals with elevated levels of triglycerides (> 150 mg/dl).

2. To demonstrate the impact of omega-three fatty acid intake on TG levels and on HDL-C levels, HDL subpopulations, composition of plasma and membrane phospholipids, and chronic inflammation as measured by c-reactive protein (CRP), sPLA2 and by levels of arachidonic acid.

3. To demonstrate the impact of omega-three fatty acid intake on BART at 24 weeks and 24 months and on arterial stiffness at 24 months. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01041521
Study type	Interventional
Source	Tufts University
Contact
Status	Completed
Phase	Phase 4
Start date	January 2010
Completion date	August 2015

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

The Impact of Omega Three Fatty Acids on Vascular Function in HIV — HOST

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms