Impact of Antiretroviral Therapy on Cardiac Biomarkers
الكلمات الدالة
نبذة مختصرة
وصف
With the advent of antiretroviral therapy, death due to opportunistic diseases have seen a major decline among patients with HIV. However, several antiretroviral medications, in particular protease inhibitors (PI), have been associated with increased cardiovascular risk in large cohort studies. The role of inflammation in cardiovascular risk is currently being elucidated. High sensitivity C-reactive protein (hsCRP) has been identified as a strong independent predictor of cardiovascular disease among healthy individuals in several large cohort studies. Other inflammatory biomarkers such as serum amyloid A (SAA) and interleukin-6 (IL-6) have also been correlated with cardiovascular risk. Among patients with HIV, studies have revealed inappropriate immune activation with increased pro-inflammatory cytokines such as IL-6, IL-10, interferon-γ (IFN- γ), and tumor necrosis factor-α (TNF-α). The effects of this immune dysregulation and the impact of antiretroviral therapy on the cytokines and biomarkers associated with cardiovascular risk remain to be delineated.
Objective: Our aims are to characterize the levels of inflammatory biomarkers at the time of antiretroviral initiation, to define the time period over which the biomarkers change and stabilize, and to determine if the type of antiretroviral drug class used has an impact on the rate of alteration of these biomarkers. Given the disparate cardiovascular risk between women and men of similar age groups, we will study the additional impact of gender on these biomarkers. We will also explore whether there is a correlation between change of CD4 T-lymphocyte counts and the response of the biomarkers.
تواريخ
آخر التحقق: | 06/30/2017 |
تم الإرسال لأول مرة: | 03/18/2008 |
تم إرسال التسجيل المقدر: | 03/20/2008 |
أول نشر: | 03/23/2008 |
تم إرسال آخر تحديث: | 07/05/2017 |
آخر تحديث تم نشره: | 07/10/2017 |
تاريخ بدء الدراسة الفعلي: | 02/29/2008 |
تاريخ الإنجاز الأساسي المقدر: | 09/30/2014 |
التاريخ المتوقع لانتهاء الدراسة: | 09/30/2014 |
حالة أو مرض
مرحلة
مجموعات الذراع
ذراع | التدخل / العلاج |
---|---|
1 10 patients starting on non-nucleoside reverse transcriptase inhibitor based regimen. 5 women and 5 men. | |
2 10 patients starting a protease inhibitor based regimen. 5 women and 5 men. |
معايير الأهلية
الأعمار المؤهلة للدراسة | 18 Years إلى 18 Years |
الأجناس المؤهلة للدراسة | All |
طريقة أخذ العينات | Probability Sample |
يقبل المتطوعين الأصحاء | نعم |
المعايير | Inclusion Criteria: - Patients with a CD4 count between 200-400 planning on initiating antiretrovirals. Exclusion Criteria: - Pregnancy, - Recent discontinuation of an antiretroviral within the past 30 days, - Active intravenous drug use, - Acute febrile illness with temperature > 100 F, - Diagnosis or symptoms of acute infection within the past 30 days, - Opportunistic infection or surgical procedure within the past 60 days, - Myocardial infarction within the last 30 days, - Renal disease (CKD Stages 3-5), and - Unstable liver disease. |