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Study to Assess the Seroprevalence of Anti-Tat Antibodies in HIV-infected Patients — ISS OBS T-004  

HIV Infection Clinical Trial

Official title:
A Multicentre, Observational, Cross-sectional Study to Assess the Seroprevalence of Anti-Tat Antibodies in HIV-infected Patients in Selected Areas of Gauteng and Eastern Cape

Clinical Trial Summary

Tat is a key HIV regulatory protein produced very early after infection, prior to virus integration, and necessary for viral gene expression, cell-to-cell virus transmission and disease progression. Previous studies in natural HIV infection, indicated that the presence of a Tat-specific immune response correlates with a lower incidence and reduced risk of progression to AIDS as compared to anti-Tat negative individuals suggesting that an immune response to Tat may exert a protective role and control the progression to AIDS in vivo.

On the basis of the above mentioned consideration, the present study was directed at investigating the seroprevalence of anti-Tat antibodies in HIV-infected South African patients.

Clinical Trial Description

This is an observational, cross-sectional study aimed at assessing the frequency, magnitude and quality of the anti-Tat antibody response in both antiretroviral (ARV)-treated and treatment-naïve HIV-infected South African adults, and at exploring the correlation between the presence of anti-Tat antibody response and the immunological status of participants as well as with the presence of co-infections such as HBV, syphilis and HPV (the latter only for female participants).

The study has involved 531 participants and provided important information for the planning, design and conduction of future therapeutic clinical trials with the Tat-based HIV vaccine in South African individuals.

This study is conducted in the frame of the Government-to-Government cooperation program N. AID 8421, funded by the Italian Ministry of Foreign Affairs-Directorate General for Development Cooperation (MAE-DGCS) and jointly implemented by the Italian Istituto Superiore di Sanita' (ISS) and the South African Department of Health in collaboration with the South African AIDS Vaccine Initiative of the Medical Research Council (MRC-SAAVI) ;

Study Design

Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01359800
Study type Observational
Source Istituto Superiore di Sanità
Contact
Status Completed
Phase N/A
Start date October 2010
Completion date July 2013
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