This site became the new ClinicalTrials.gov on June 19th. Learn more.
Show more
ClinicalTrials.gov Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...
ClinicalTrials.gov Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more...
ClinicalTrials.gov Menu
Give us feedback

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

This study has been completed.
Sponsor:
Collaborators:
National Institute on Drug Abuse (NIDA)
National Institute of Mental Health (NIMH)
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Information provided by (Responsible Party):
University of North Carolina, Chapel Hill
ClinicalTrials.gov Identifier:
NCT00107029
First received: April 4, 2005
Last updated: February 27, 2017
Last verified: February 2016
History of Changes
April 4, 2005
February 27, 2017
December 2002
September 2005   (Final data collection date for primary outcome measure)
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.
Not Provided
Complete list of historical versions of study NCT00107029 on ClinicalTrials.gov Archive Site
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.
Not Provided
Not Provided
Not Provided
 
Evaluation of Genetic Markers as Explanations for the Observed Differences in Disease Progression in HIV+ Youth
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
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.

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.
Observational
Observational Model: Cohort
Time Perspective: Other
Not Provided
Retention:   Samples Without DNA
Description:
Biomedical HIV-1 related data and samples are available for the time the subjects were enrolled in REACH. HIV-1 genotyping will certainly be possible from these retrospective samples and the stored PBMCs will be evaluated for usefulness in the HIV-1 specific assays. Prospectively, samples will be collected every six months over a two-year period to evaluate both HIV-1 specific CD8+ T cell responses and the dominant HIV-1 genotype longitudinally.
Non-Probability Sample
Subjects who were identified as HLA Class I HLA-B*27, B*35, B*53, and/or B*57 positive from the REACH study will be contacted for their interest in participating in this study. Only former REACH sites in the ATN will be eligible to enroll subjects into this study.
HIV Infection
Not Provided
Not Provided
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
113
September 2005
September 2005   (Final data collection date for primary outcome measure)

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
Sexes Eligible for Study: All
Child, Adult, Senior
No
Contact information is only displayed when the study is recruiting subjects
United States
 
 
NCT00107029
ATN 026
No
Not Provided
Not Provided
University of North Carolina, Chapel Hill
University of North Carolina, Chapel Hill
  • National Institute on Drug Abuse (NIDA)
  • National Institute of Mental Health (NIMH)
  • National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Study Chair: Paul Goepfert, MD University of Alabama at Birmingham
University of North Carolina, Chapel Hill
February 2016

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP