Ignite Creation Date:
2025-12-25 @ 12:33 AM
Ignite Modification Date:
2025-12-25 @ 10:40 PM
Study NCT ID:
NCT06071767
Status:
RECRUITING
Last Update Posted:
2025-07-02
First Post:
2023-09-05
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Evaluation of Safety, Immunogenicity and Efficacy of a Triple Immune Regimen in Adults Initiated on ART During Acute HIV-1
Sponsor:
National Institute of Allergy and Infectious Diseases (NIAID)
Organization:
Study Overview
Official Title:
A Phase I/IIa Randomized, Placebo-Controlled Trial of Conserved-Mosaic T-cell Vaccine in a Regimen With Vesatolimod and Broadly Neutralizing Antibodies in Adults Initiated on Suppressive Antiretroviral Therapy During Acute HIV-1
Status:
RECRUITING
Status Verified Date:
2025-06
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The purpose of this study is to evaluate the safety, tolerability, and efficacy of therapeutic vaccination with chimpanzee adenovirus ChAdOx1- and poxvirus modified vaccinia Ankara (MVA)-vectored conserved mosaic T-cell vaccines in a sequential regimen with the toll-like receptor 7 (TLR7) agonist vesatolimod (VES) and two broadly neutralizing antibodies (bNAbs) compared to placebo, to induce HIV-1 control during analytic treatment interruption (ATI).
Detailed Description:
A5374 is a phase I/IIa randomized, two-arm, double-blind placebo-controlled, multi-step strategy trial to evaluate safety and efficacy of therapeutic vaccination with chimpanzee adenovirus ChAdOx1- and poxvirus modified vaccinia Ankara (MVA)-vectored conserved mosaic T-cell vaccines in a sequential regimen with the toll-like receptor 7 (TLR7) agonist vesatolimod (VES) and two broadly neutralizing antibodies (bNAbs) of the CD4 binding site and V3-loop base classes in individuals with HIV-1 who started suppressive antiretroviral therapy (ART) during acute HIV-1.
Participants will be screened for eligibility and have a pre-entry visit. After determination of eligibility, participants will be randomized prior to entry to either the active intervention arm (Arm A) or the placebo arm (Arm B) in a 2:1 ratio.
The study consists of four steps including an analytical treatment interruption (ATI).
* Step 1: Study Intervention and ART (67 weeks)
* Step 2: Analytic Treatment Interruption (up to 24 weeks)
* Step 3: ART Restart (24 weeks)
* Step 4: Continuation of ATI (up to 24 weeks)
Each participant will complete Step 1 and Step 2. At the end of Step 2, participants who have experienced virologic rebound will enter Step 3 and resume ART. Participants who did not meet ART restart criteria after 24 weeks in Step 2 will enter Step 4 for an extended ATI.
Each participant will be enrolled for up to approximately 110 weeks. The total time on study for each participant is dependent on the time spent in the treatment interruption steps (Step 2 and 4).
Participants will be screened for eligibility and have a pre-entry visit. After determination of eligibility, participants will be randomized prior to entry to either the active intervention arm (Arm A) or the placebo arm (Arm B) in a 2:1 ratio.
The study consists of four steps including an analytical treatment interruption (ATI).
* Step 1: Study Intervention and ART (67 weeks)
* Step 2: Analytic Treatment Interruption (up to 24 weeks)
* Step 3: ART Restart (24 weeks)
* Step 4: Continuation of ATI (up to 24 weeks)
Each participant will complete Step 1 and Step 2. At the end of Step 2, participants who have experienced virologic rebound will enter Step 3 and resume ART. Participants who did not meet ART restart criteria after 24 weeks in Step 2 will enter Step 4 for an extended ATI.
Each participant will be enrolled for up to approximately 110 weeks. The total time on study for each participant is dependent on the time spent in the treatment interruption steps (Step 2 and 4).
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
True
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: