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Objective:

Protease inhibitors and other antiretroviral drugs have been associated with dyslipidemia, endothelial dysfunction, and increased cardiovascular disease risk. The protease inhibitor atazanavir has an advantageous lipid profile; we studied its effects on arterial function and other metabolic and inflammatory cardiovascular disease risk factors.

Design:

Prospective, randomized, multinational trial in HIV-infected patients receiving stable protease inhibitor-based therapy with plasma HIV RNA less than 500 copies/ml and fasting low-density lipoprotein cholesterol more than 130 mg/dl, or triglycerides more than 200 mg/dl.

Methods:

Patients were randomized to continue their current protease inhibitor or switch the protease inhibitor to atazanavir and continue ritonavir if given as a protease inhibitor booster for 24 weeks. Brachial artery flow-mediated dilation, lipoproteins, and inflammatory and metabolic markers …