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NCT number NCT01852942
Study type Interventional
Source University of Minnesota - Clinical and Translational Science Institute
Status Active, not recruiting
Phase Phase 2
Start date September 2014
Completion date July 2018

Clinical Trial Summary

This study was designed to test the hypothesis that treatment of HIV infected subjects with losartan, an agent with specific anti-inflammatory and anti-fibrotic actions, will:

1. reverse existing lymphoid tissue fibrosis,

2. restore lymphoid tissue architecture,

3. increase the number and improve the function of peripheral and lymphatic CD4 T cells,

4. decrease levels of systemic immune activation (IA),

5. decrease size of the HIV reservoir, and

6. be safe and well tolerated.

Clinical Trial Description

This is a randomized, double-blind, placebo-controlled trial of 50 HIV-1 infected individuals on stable ART randomized in a 1:1 ratio to losartan (50 mg orally daily titrated to 100 mg daily) vs placebo for 30 months. We plan to enroll a total of 63 HIV infected subjects to ensure that 50 complete the protocol. All HIV infected subjects will undergo biopsies of inguinal lymph node (LN) and gut associated lymphatic tissue (GALT) for primary endpoint analysis at baseline, 12 and 30 months after study enrollment. Blood will be collected at least quarterly throughout the study and an intensive blood pharmacokinetic (PK) study will be conducted at month 1. All HIV infected subjects will be vaccinated with the quadrivalent human papillomavirus (HPV) vaccine at months 23, 25 and 29.5 to measure immune function. 5 HIV uninfected control subjects will also be enrolled.

The primary endpoint is to determine the impact of losartan on lymphoid tissue fibrosis in HIV infected, ART treated adults. This will be determined by measuring the amount of collagen deposition in lymphoid tissues and the integrity of the FRCn using immunohistochemistry (IHC) and quantitative image analysis (QIA).

Study Design

Related Conditions & MeSH terms

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