Fluad vs. Fluzone High-Dose Vaccine Effectiveness Among Adults ≥65 Years
Public ClinicalTrials.gov record NCT06029933. 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
Relative Vaccine Effectiveness of Adjuvanted Quadrivalent Inactivated Influenza Vaccine vs High-Dose Quadrivalent Inactivated Influenza Vaccine Among Adults ≥65 Years for the 2023-24 and 2024-25 Seasons
Study identification
- NCT ID
- NCT06029933
- Recruitment status
- Not listed
- Study type
- Observational
- Phase
- Not listed
- Lead sponsor
- Kaiser Permanente
- Other
- Enrollment
- 960,000 participants
Conditions and interventions
Interventions
- Adjuvanted Quadrivalent Inactivated Influenza Vaccine (aIIV4) Biological
- High-Dose Quadrivalent Inactivated Influenza Vaccine (HD-IIV4) Biological
Biological
Eligibility (public fields only)
- Age range
- 65 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
- Aug 16, 2023
- Primary completion
- Apr 30, 2025
- Completion
- Apr 30, 2026
- Last update posted
- Sep 7, 2023
2023 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Kaiser Permanente Northern California (entire region) | Oakland | California | 94612 | 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 NCT06029933, 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 Sep 7, 2023 · Synced Jul 22, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT06029933 live on ClinicalTrials.gov.