Impact of Reactogenicity of the 2024-2025 COVID-19 Vaccines on Health Care Workers and First Responders in the United States
Public ClinicalTrials.gov record NCT06633835. 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.
Study identification
- NCT ID
- NCT06633835
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 4
- Lead sponsor
- Novavax
- Industry
- Enrollment
- 660 participants
Conditions and interventions
Interventions
- Pfizer mRNA COVID-19 vaccine Biological
- protein subunit: Novavax COVID-19 vaccine Biological
Biological
Eligibility (public fields only)
- Age range
- 18 Years and older
- 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
- Sep 19, 2024
- Primary completion
- Jun 29, 2025
- Completion
- Aug 30, 2025
- Last update posted
- Mar 9, 2025
2024 – 2025
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Utah School of Medicine | Salt Lake City | Utah | 84108 | — |
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 NCT06633835, 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 Mar 9, 2025 · Synced May 20, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT06633835 live on ClinicalTrials.gov.