Safety and Immunogenicity of a Self-Amplifying RNA Vaccine Against Crimean-Congo Hemorrhagic Fever
Public ClinicalTrials.gov record NCT06799013. 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
A Phase 1, Open Label, Dose-Escalation Study to Evaluate the Safety, Reactogenicity and Immunogenicity of a Nanoparticle Carrier-Formulated Self-Amplifying RNA Vaccine Against Crimean-Congo Hemorrhagic Fever (HDT-321) in Healthy Adults
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The goal of this clinical trial is to assess the safety, tolerability and immunogenicity of three dosage levels, and a single or two-dose administration regimen, of the investigational HDT-321 product administered intra-muscularly. The main questions it aims to answer are: * Is HDT-321 safe to use * Does HDT-321 provide protection against Crimean-Congo hemorrhagic fever virus (CCHFV) Researchers will record any adverse events and test blood samples to see if HDT-321 is safe and works to protect participants against Crimean-Congo hemorrhagic fever virus (CCHFV) Participants will: * Receive 1 or 2 doses of HDT-321 * Complete a memory aid and measurements for 7 days after receiving each dose of HDT-321 * Be followed throughout the study using phone calls and clinic visits to check for and record adverse events * Provide blood samples at specific study visits
Study identification
- NCT ID
- NCT06799013
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 48 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 64 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 9, 2025
- Primary completion
- Nov 30, 2026
- Completion
- Jun 30, 2027
- Last update posted
- Jul 27, 2025
2025 – 2027
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Flourish Research San Antonio (Clinical Trials of Texas) | San Antonio | Texas | 78229 | 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 NCT06799013, 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 Jul 27, 2025 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT06799013 live on ClinicalTrials.gov.