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Completed

NCT Number: NCT00107029

Evaluation of Genetic Markers as Explanations for the Observed Differences in Disease Progression in HIV+ Youth

This protocol is a study of HIV+ young people who were identified as having certain HIV-1 specific T-cell responses and genetic markers while previously enrolled in the 5-year longitudinal adolescent study, "REACH." Blood samples will be collected, a medical and medication history and physical examination will be performed every 6 months for a total of 2 years.

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Key information

Conditions

HIV Infection Blood-Borne Infections Communicable Diseases Genital Diseases HIV Infections Immune System Diseases Immunologic Deficiency Syndromes Infections Lentivirus Infections RNA Virus Infections Retroviridae Infections Sexually Transmitted Diseases Sexually Transmitted Diseases, Viral Urogenital Diseases Virus Diseases

Sex eligibility

All sexes

Study type

Observational

Primary location

Children's Hospital of Los Angeles, Los Angeles, California, United States

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About this study

Numerous studies have demonstrated an association between HLA class I genotypes with differing progression to AIDS in individuals who are followed after being off antiretroviral therapy. These studies do not always associate the same HLA class I alleles with the risks of HIV-1 disease progression; however they consistently demonstrated that HLA-B*35 and B*53 portend a bad outcome compared to the better outcome observed in HLA-B*27 and B*57 carriers. Despite this information, very little data exists to explain the mechanism of this association.

This longitudinal study will look at the HIV-1 specific CD8+ T-cell responses and the dominant HIV-1 genotype among individuals identified as HLA-B*27, B*35, B*53 and B*57 positive through studies done in collaboration with the REACH project.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • HLA-Class I HLA-B*27, B*35, B*53 and/or B*57 positive identified through the REACH study
  • Subject's ability and willingness to provide written informed consent
  • Subject's ability and willingness to be followed at least one year on this ATN 026 study

Exclusion criteria

  • On chronic immunosuppressive therapy, not including topical or inhaled steroid use.
  • Any prohibited medication listed in protocol within 2 weeks prior to the Entry visit labs

Treatment and study plan

Primary outcomes

  1. Demonstrate that few CTL escape mutations occur in HIV-1 specific CD8+ T cell epitopes that are HLA-B*27 and B*57 restricted, when compared to those restricted by HLA-B*35 and B*53.

    Time frame: 96 Weeks

    Demonstrate that few CTL escape mutations occur in HIV-1 specific CD8+ T cell epitopes that are HLA-B*27 and B*57 restricted, when compared to those restricted by HLA-B*35 and B*53.

Secondary outcomes

  1. Demonstrate that CD8+ T cells have a high functional avidity to HLA-B*27 and B*57 bound epitopes when compared to those responding to HLA-B*35 and B*53 bound epitopes.

    Time frame: 96 Weeks

    Demonstrate that CD8+ T cells have a high functional avidity to HLA-B*27 and B*57 bound epitopes when compared to those responding to HLA-B*35 and B*53 bound epitopes.

Sponsors and collaborators

Lead sponsor

University of North Carolina, Chapel Hill

Other

Collaborators

  • National Institute of Mental Health (NIMH)
  • National Institute on Alcohol Abuse and Alcoholism (NIAAA)
  • National Institute on Drug Abuse (NIDA)

Registry information

Official study title

Evaluation of HIV-Specific CD8+ T-Cell Responses and Escape Mutations as Explanations for the Observed Differences in Disease Progression Conferred by HLA Class I Alleles

Important dates

Study start
2002
Primary completion
2005
Study completion
2005
First posted
Apr 5, 2005
Registry last updated
Feb 28, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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