Characteristics of Immunity in Gut Mucosa, Spinal Fluid, Lymph Node and Blood of HIV Negative Thais and Thais with HIV Infection

NCT ID: NCT01397669

Last Updated: 2024-11-27

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: NA
• Total Enrollment: 214 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2011-07-31
• Study Completion Date: 2031-02-28

Brief Summary

To compare the immunophenotyping and immunochemistry in the gut mucosa of HIV negative and non-acute HIV-infected adults

1. To compare the immunophenotyping of the gut mucosa to that of the peripheral blood in HIV negative and in non-acute HIV-infected subjects

2. To compare the immunophenotyping of the peripheral blood in HIV negative and non-acute HIV-infected adults to the findings from acutely HIV-infected subjects in the WRAIR#1494/RV254/ SEARCH 010 study

3. To compare immunologic markers in the genital compartment compared to the peripheral blood in HIV negative and non-acute HIV-infected adults to the findings from acutely HIV-infected subjects in the WRAIR#1494/RV254/ SEARCH 010 study

4. Archive samples for immunologic and virologic testing

Detailed Description

This study will provide control samples for immunologic and virologic investigations from HIV negative and non-acute HIV-infected subjects to compare to subjects with acute HIV infection in WRAIR#1494/RV254/SEARCH 010 study. These control samples will allow for correct scientific interpretation of the immunologic changes seen in acute HIV infection in the peripheral blood, gut and genital compartments.

Subjects will be recruited at the Thai Red Cross Anonymous Clinic (TRCAC) and Chulalongkorn University Hospital. Eligible subjects will undergo a one-time flexible sigmoidoscopy and biopsy at Chulalongkorn University Hospital. They will have a total of approximately 60 ml of blood draw for immunophenotyping and storage. Genital secretion will be collected in subjects who agree to this optional procedure.

It will take approximately 12 months to complete the study. Each subject will have two visits: the screening visit and the enrollment visit (within 15 days of screening visit). Subjects may also be co-enrolled in other study protocols provided blood volumes are within acceptable limits.

Conditions

HIV-infection

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: NONE

Study Groups

HIV infection and non HIV infection

Group Type: OTHER

Colon biopsy, lymph node biopsy, lumbar puncture, Leukapheresis, Brain MRI/MRS/DTI

Intervention Type: PROCEDURE

Eligible subjects will undergo a flexible sigmoidoscopy/biopsy and Brain MRI/MRS/DTI at Chulalongkorn University Hospital.

Lumbar puncture, lymph node biopsy, and leukapheresis will be done at TRCARC or IHRI.

Interventions

Colon biopsy, lymph node biopsy, lumbar puncture, Leukapheresis, Brain MRI/MRS/DTI

Eligible subjects will undergo a flexible sigmoidoscopy/biopsy and Brain MRI/MRS/DTI at Chulalongkorn University Hospital.

Lumbar puncture, lymph node biopsy, and leukapheresis will be done at TRCARC or IHRI.

Intervention Type: PROCEDURE

Eligibility Criteria

Inclusion Criteria

1. Age 18 to 50 years old

2. HIV negative subjects must have negative results by 4th generation EIA and NAT (Aptima)

3. HIV positive subjects must have a positive 4th generation EIA and a positive less sensitive EIA.

4. Understand the study and sign informed consent form. Persons who cannot read will have the consent form read to them by a study staff and they can give informed consent by using thumb print.

Exclusion Criteria

1. Have gastrointestinal disorders or gastrointestinal symptoms that require endoscopy for diagnostic purposes or have systemic disorders, which include but may not be limited to autoimmune diseases such as rheumatoid arthritis, systemic lupus erythematosus or psoriasis, that in the judgment of investigators could cause colon mucosa to be abnormal on biopsy

2. Active AIDS-defining opportunistic infection (OI) within 30 days prior to entry for HIV-positive subjects. Subjects must be off all acute treatments for OI for at least 14 days prior to entry. Subjects on maintenance or prophylactic therapy for AIDS-related OIs will be eligible.

3. Have platelet count < 150,000 count/ml or PT, PT/PTT > the upper limit of normal (ULN) or INR > 1.1

4. Have self-reported bleeding disorder

5. Untreated syphilis infection

6. Abnormal screening neurological examination suggestive of central neurological findings if planning to participate in the lumbar puncture

7. Positive urine pregnancy test

8. Persons who have a history of a medical or psychiatric disorder by investigator's interview and physical examination according to standard practices, that in the judgment of the investigator(s), would interfere with or serve as a contraindication to adherence to the study protocol or ability to give informed consent.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 50 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Armed Forces Research Institute of Medical Sciences, Thailand

OTHER_GOV

Sponsor Role: collaborator

Thai Red Cross AIDS Research Centre

OTHER

Sponsor Role: collaborator

SEARCH Research Foundation

OTHER

Sponsor Role: lead

Responsible Party

Nittaya Phanuphak

Exceutive director of IHRI

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Institute of HIV Research and Innovation (IHRI)

Bangkok, Bangkok, Thailand

Site Status: RECRUITING

Countries

Thailand

Central Contacts

Nitiya Chomchey, RN

Role: CONTACT

nitiya.c@searchthailand.org

Facility Contacts

Nitiya Chomchey, RN

Role: primary

nitiya.c@searchthailand.org

Nittaya Phanuphak, M.D.,Ph.D

Role: backup

Other Identifiers

WRAIR#1751 /RV304/ SEARCH013

Identifier Type: -

Identifier Source: org_study_id