This is a small observational study aimed at observing differences in platelet function in HIV patients on abacavir versus tenofovir based anti-HIV drugs. There is some correlation between platelet activation and cardiovascular disease- this study will act as a pilot to see if platelet activation among abacavir users may explain the correlation between abacavir and cardiovascular disease in HIV positive patients. This study will enroll 44 participants total; 22 on abacavir-based treatment, 22 on tenofovir-based treatment. There is only one study visit which includes a blood draw, physical assessment, and review of medical history.
Study Type
OBSERVATIONAL
Enrollment
24
Platelet aggregation
Clinical AIDS Research and Education Center
Los Angeles, California, United States
Platelet aggregation
Degree of platelet aggregation in response to adenosine diphosphate
Time frame: At screening visit
Plasma Markers of coagulation
sGPVI
Time frame: At screening visit
Plasma Markers of Coagulation
sPSelectin
Time frame: At screening visit
Plasma markers of endothelial function
sICAM
Time frame: At screening visit
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