Safety and Immunogenicity of Ad4-HIV Envelope Vaccine Vectors in Healthy Volunteers
Public ClinicalTrials.gov record NCT03878121. 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
Phase I Open-Label Study of Safety and Immunogenicity of AD4-HIV Envelope Vaccine Vectors in Healthy Volunteers
Study identification
- NCT ID
- NCT03878121
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 1
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Enrollment
- 300 participants
Conditions and interventions
Conditions
Interventions
- Ad4-Env145NFL Biological
- Ad4-Env150KN Biological
- VRC-HIVRGP096-00-VP (Trimer 4571) with alum Biological
Biological
Eligibility (public fields only)
- Age range
- 18 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Not listed
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 16, 2019
- Primary completion
- Nov 29, 2028
- Completion
- Nov 29, 2028
- Last update posted
- Apr 20, 2026
2019 – 2028
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institutes of Health Clinical Center | Bethesda | Maryland | 20892 | Recruiting |
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 NCT03878121, 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 Apr 20, 2026 · Synced Apr 22, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03878121 live on ClinicalTrials.gov.