Trials / Suspended

SuspendedNCT04263207

Observational Study for the Evaluation of the Role of HIV-1 Tat Protein and Anti-Tat Immune Response In HIV Reservoir

Observational Study for the Evaluation of the Role of HIV-1 Tat Protein and Anti-Tat Immune Response in Peripheral Blood HIV Reservoir Dynamics

Status: Suspended
Phase: —
Study type: Observational
Enrollment: 100 (estimated)

Sponsor: Barbara Ensoli, MD, PhD · Academic / Other
Sex: All
Age: 18 Years
Healthy volunteers: Not accepted

Summary

A longitudinal observational study in HIV-infected subjects receiving cART addressed to explore the effect of the Tat protein and anti-Tat immunity on the formation and maintenance of HIV-1 virus reservoir.

Detailed description

The study is designed as a longitudinal observational study addressed to identify the effects of Tat protein and humoral/cellular anti-Tat immune responses (induced in the natural infection or by Tat vaccination) in HIV-1 reservoir dynamics in blood of HIV infected patients receiving cART. HIV DNA data will be used for analyzing the decay dynamics. The primary objective of the study is to determine the rate of decay of total HIV DNA in blood of anti-Tat antibody (Ab) positive versus anti-Tat Ab negative HIV patients receiving cART. The secondary objectives of the study are to relate the HIV DNA decay data to: 1. the persistence of anti-Tat humoral responses; 2. biomarkers of HIV reservoir stability potentially affected by the Tat protein or anti-Tat immune responses, including: i) apoptotic/survival index of CD4+ T cells; ii) reactivation dynamics of latent HIV in resting CD4+ T cells upon exposure to Tat protein and/or activation stimuli; iii) cellular and humoral biomarkers relevant to inflammation and immune dysregulation.

Conditions

HIV/AIDS

Interventions

Type	Name	Description
OTHER	No intervention	No intervention

Timeline

Start date: 2020-02-04
Primary completion: 2024-12-01
Completion: 2025-06-01
First posted: 2020-02-10
Last updated: 2024-03-05

Locations

1 site across 1 country: Italy

Source: ClinicalTrials.gov record NCT04263207. Inclusion in this directory is not an endorsement.