Leukapheresis to Obtain Lymphocytes for Studies on Antiretroviral Naive HIV-infected Patients

NCT ID: NCT00333892

Last Updated: 2012-06-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

220 participants

Study Classification

OBSERVATIONAL

Study Start Date

2003-08-31

Study Completion Date

2008-12-31

Brief Summary

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To further investigate differences in the immunologic function of various lymphocyte subsets in HIV-infected patients who are treated early in their infection and during the chronic phase of the infection. Studies will also be done to further delineate the various antigen-specific and innate immune responses including characterization of soluble factors associated with primary HIV infection.

Detailed Description

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Primary HIV-1 infected and chronically infected individuals will be recruited and leukapheresis will be performed. This one year study requires that patients be apheresed once before initiating therapy and on two other occasions (at month 6 and month 12) after suppression of plasma viremia. Peripheral blood mononuclear cells will be isolated by sodium diatrizoate density centrifugation and subjected to immunologic and virologic studies.

Conditions

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Human Immunodeficiency Virus

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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leukapheresis

pack of cells as per protocol

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Adult HIV-1 infected patient
* For primary infected patients anyone with an exposure to a known source of HIV infected material or individual, with symptoms and signs if present consistent with primary HIV infection, a negative ELISA, indeterminate Western blot for HIV and a positive HIV plasma RNA levels \> 10,000 copies/mL by either RT-PCR or bDNA
* Chronic HIV-infected patients should have a positive ELISA and a confirmatory western blot and willingness to give informed consent for the storage of blood.
* Willingness to be able to make follow-up visits for apheresis at 6 and 12 months for those who undergo antiretroviral therapy

Exclusion Criteria

* Pregnant women
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Institutes of Health (NIH)

NIH

Sponsor Role collaborator

Canadian Immunodeficiency Research Collaborative

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Mario Ostrowski, MD

Role: PRINCIPAL_INVESTIGATOR

University of Toronto

Other Identifiers

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8737

Identifier Type: -

Identifier Source: org_study_id

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