Perturbing of HIV Reservoir With Immune Stimulation

Not Applicable

Completed

• Conditions: AIDS; HIV

• Registration Number: NCT02707692
• Lead Sponsor: University of California, San Diego

Brief Summary

The purpose of this study is to determine the impact of Pneumococcus and Influenza vaccines on the HIV transcriptional activity in individuals who are virologically suppressed for at least 48 weeks on similar ART. The proposed study is a randomized double-blinded control trial conducted over 28 weeks. Randomized interventions will be injections of Influenza vaccine, Pneumococcal vaccine, and Placebo. Each participant will receive each injection but in a randomized order.

Detailed Description

Title: Perturbing the HIV Reservoir

Sample Size: 56

Study Population: HIV-infected individuals between 18 and 65 years old who started similar antiretroviral therapy (ART) during chronic infection and remained virally suppressed for at least 48 weeks before enrollment. Participants will have CD4 \>250 cells/μl at enrollment and a CD4 nadir \>100 cells/μl.

Participating Sites: UCSD's Antiviral Research Center (AVRC)

Study Design: The proposed study is a randomized double-blinded control trial conducted over 28 weeks. Randomized interventions will be injections of Influenza vaccine, Pneumococcal vaccine, and Placebo. Each participant will receive each injection but in a randomized order.

Schedule of Evaluations: Study evaluations will be based on three 30 day cycles (Influenza vaccine, Pneumococcus vaccine, Placebo in random order) over 28 weeks of the RCT. Pre injection: one paired blood and genital secretion sample will be collected before each injection. Post-injection: paired blood and genital secretion samples will be collected on days 2, 4, 7, 14 and 30 after each injection.

Study Duration: 240 weeks

Study Regimen/Intervention: This is a double blind RCT of two vaccines (Pneumovax®23 and Fluarix®) plus placebo (sterile saline injection). Study participants will be followed for 28 weeks after enrollment. During this 28-week period, blood and genital secretion samples will be collected on day 0 and five subsequent time points after each injection (days 2, 4, 7, 14 and 30). Injections (vaccine or placebo) will be administered 12 weeks apart and in a random order, to minimize a possible bias due to the order of the vaccines.

Primary Objective: To determine the impact of Pneumococcus and Influenza vaccines on the HIV transcriptional activity in individuals who are virologically suppressed for at least 48 weeks on similar ART.

Primary Outcome: Average level of CD4+ T cell-associated HIV RNA transcription measured at days 2, 4, 7, 14 and 30 after each injection.

Study Timeline

• Study First Submitted: 2016-02-23
• Study First Submitted QC: 2016-03-08
• Study First Posted: 2016-03-14
• Study Start: 2016-08
• Primary Completion: 2020-04
• Study Completion: 2022-01
• Results First Submitted: 2022-05-03
• Status Verified: 2022-08
• Results First Submitted QC: 2022-08-03
• Last Update Submitted: 2022-08-03
• Results First Posted: 2022-08-24
• Last Update Posted: 2022-08-24

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 54

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Change From Vaccination (Day 0) in Mean CD4+ T Cell-associated HIV RNA Transcription at Day 7	Day 0 and Day 7	CD4+ T cell-associated HIV RNA was measured before vaccination on Day 0 and again on Day 7. The Day-0 measure of CD4+ T cell-associated HIV RNA transcription was subtracted from the Day-7 measure.

Trial Locations

Locations (1)

UCSD Antiviral Research Center (AVRC); 🇺🇸 San Diego, California, United States