Actively Recruiting
Fluad vs. Fluzone High-Dose Vaccine Effectiveness Among Adults ≥65 Years
Led by Kaiser Permanente · Updated on 2023-09-08
960000
Participants Needed
1
Research Sites
141 weeks
Total Duration
On this page
Sponsors
K
Kaiser Permanente
Lead Sponsor
S
Seqirus
Collaborating Sponsor
AI-Summary
What this Trial Is About
This study will evaluate the relative vaccine effectiveness of quadrivalent adjuvanted inactivated influenza vaccine (aIIV4) versus quadrivalent high-dose inactivated influenza vaccine (HD-IIV4) in preventing polymerase chain reaction (PCR)-confirmed influenza and influenza-related outcomes in adults ≥65 years of age during the 2023/24 and 2024/25 influenza seasons. The study is an observational study conducted at Kaiser Permanente Northern California (KPNC), an integrated health care system in the United States.
CONDITIONS
Official Title
Fluad vs. Fluzone High-Dose Vaccine Effectiveness Among Adults ≥65 Years
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Age ≥65 years at the time of influenza vaccination
- KPNC member at the time of vaccination
- Receive either aIIV4 or HD-IIV4 at a KPNC facility during the 2023/24 and/or 2024/25 influenza seasons
You will not qualify if you...
- Age <65 years at the time of influenza vaccination
- Received either aIIV4 or HD-IIV4 in the inpatient setting
- Receive more than one influenza vaccination during a single season period (i.e., 2023/24 or 2024/25 influenza seasons)
- Receive an influenza vaccination outside of KPNC
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Kaiser Permanente Northern California (entire region)
Oakland, California, United States, 94612
Actively Recruiting
Research Team
A
Amber H. Hyman, PhD, MPH
CONTACT
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
2
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