HIV Clinical Trial - Angiotensin Receptors & Age Related Mitochondrial

Status Terminated

Clinical Trial Summary

This study is designed to evaluate specific factors in mitochondria that may precipitate premature aging and physical weakness in HIV patients. Angiotensin receptors 1 and 2 (AT1R and AT2R) are found in virtually every cell type. This study will evaluate how the relationships among these receptors in immune and skeletal muscle cells change with HIV, and how these changes might trigger mitochondrial dysfunction, declines in muscle strength, and cellular decline in people living with HIV.

Clinical Trial Description

HIV related premature cellular aging and declines in mitochondrial function are closely linked. Dysfunctional mitochondria generate higher levels of reactive oxygen species (ROS) and provide less ATP supply cellular energy. Impaired turnover of damaged mitochondria leads to gradual but progressive decline in energy metabolism, increases in muscle fibrosis and clinically apparent weakness. The Renin Angiotensin System (RAS) is a central hormonal system that contributes to mitochondrial dysfunction and impacts both lifespan and function across multiple organ systems. Deletion of the angiotensin type 1 receptor (AT1R) results in a 25-30% extension of lifespan in mouse models, partly through increasing mitochondrial numbers. Blocking of AT1R reduces a number of age-related morbidities in mice, and in human studies. A plethora of data implicates RAS modulation in marked effects on fitness, frailty and beneficial responses to exercise in older adults. Despite this, there are virtually no data examining RAS biology in HIV+ vs. age-matched HIVsubjects, no data of RAS in relation to key HIV-specific variables (duration of HIV, treatment history, immune markers), and no data examining the effects of blocking AT1R on physical function in HIV infected subjects. In this study, we will examine the RAS and its contribution to premature mitochondrial failure in HIV patients. We will begin to fill this void by enrolling 40 HIV+ subjects in a randomized, double-blinded, placebo controlled pilot study of treatment with AT1R blocker to determine the feasibility of a larger trial, estimate effect size, assess the correlation of angiotensin receptor (AR) expression in peripheral blood cells and muscle cells, and the association of AR expression with physical function measures and immunity. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02606279
Study type	Interventional
Source	Wake Forest University Health Sciences
Contact
Status	Terminated
Phase	N/A
Start date	July 2014
Completion date	August 4, 2016

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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.

Angiotensin Receptors and Age Related Mitochondrial Decline in HIV Patients — RAS-HIV

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms