Evaluation of Trimer 4571 Therapeutic Vaccination in Adults Living With HIV on Suppressive Antiretroviral Therapy
Public ClinicalTrials.gov record NCT04985760. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Safety, Tolerability and Immunogenicity of Recombinant HIV Envelope Protein VRC-HIVRGP096-00-VP (Trimer 4571) Vaccine, in HIV-1 Infected Adults on Suppressive ART
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Trimer 4571 is a vaccine designed to stimulate the development of broadly neutralizing antibodies (bnAbs) against HIV. Trimer 4571 is investigational, meaning it is not approved by the US Food and Drug Administration (FDA). There is limited human experience with the Trimer 4571 vaccine administered with aluminum hydroxide (alum) and the vaccine has not been tested in people with HIV prior to this study although it has been tested in healthy volunteers. The goal of this study is to see if Trimer 4571 is safe and well tolerated and to see if it will help the immune system produce bnAbs against HIV.
Study identification
- NCT ID
- NCT04985760
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 32 participants
Conditions and interventions
Conditions
Interventions
- Trimer 4571 vaccine 100mcg with 500mcg alum adjuvant Biological
- Placebo control for Trimer 4571 vaccine 100mcg with 500mcg alum adjuvant Biological
- Trimer 4571 vaccine 500mcg with 500mcg alum adjuvant Biological
- Placebo control for Trimer 4571 vaccine 500mcg with 500mcg alum adjuvant Biological
Biological
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 29, 2021
- Primary completion
- Jan 15, 2026
- Completion
- Jan 15, 2026
- Last update posted
- Jan 21, 2026
2021 – 2026
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| AIDS Clinical Trials Unit/The Ohio State University | Columbus | Ohio | 43210 | — |
| University of Pittsburgh | Pittsburgh | Pennsylvania | 15213 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04985760, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 21, 2026 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04985760 live on ClinicalTrials.gov.