Actively Recruiting
A Study to Learn About mRNA Vaccines Against Influenza in Adults
Led by Pfizer · Updated on 2026-05-06
770
Participants Needed
15
Research Sites
69 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
The purpose of this study is to learn about safety in participants taking the study vaccine (mRNA-based vaccine) and the ability of the study vaccine to trigger the body's immune response, targeting the flu virus (influenza virus). This study is seeking healthy participants 18 years of age or older. All participants in this study will receive only 1 dose in their arm, to deliver one of the experimental flu vaccines or one of the approved flu vaccines used for comparison. Participants will take part in this study for about 6 months, and participants will need to visit the study site at least 3 times. A blood sample will be taken at each of the 3 planned study visits and a swab from inside the nose will be taken at the first study visit.
CONDITIONS
Official Title
A Study to Learn About mRNA Vaccines Against Influenza in Adults
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Healthy and medically stable adults determined by medical history, physical exam if needed, and investigator's judgment
You will not qualify if you...
- Tested positive for influenza within 5 months prior to first visit
- Received any investigational or licensed influenza vaccine within 5 months prior to first visit
- Taken antiviral treatments for influenza (e.g., Tamiflu) within 5 months prior to first visit
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 15 locations
1
AMR Clinical
Mobile, Alabama, United States, 36608
Actively Recruiting
2
Diablo Clinical Research, LLC d/b/a Flourish Research
Walnut Creek, California, United States, 94598
Actively Recruiting
3
Clinical Research Consulting, LLC
Milford, Connecticut, United States, 06460
Actively Recruiting
4
George Washington Medical Faculty Associates
Washington D.C., District of Columbia, United States, 20037
Actively Recruiting
5
Indago Research & Health Center, Inc
Hialeah, Florida, United States, 33012
Actively Recruiting
6
Palm Springs Community Health Center
Miami Lakes, Florida, United States, 33014
Actively Recruiting
7
Clinical Research Atlanta
Stockbridge, Georgia, United States, 30281
Actively Recruiting
8
East-West Medical Research Institute
Honolulu, Hawaii, United States, 96814
Actively Recruiting
9
AMR Clinical
Kansas City, Missouri, United States, 64114
Actively Recruiting
10
Rochester Clinical Research, LLC
Rochester, New York, United States, 14609
Actively Recruiting
11
DM Clinical Research - Philadelphia
Philadelphia, Pennsylvania, United States, 19107
Actively Recruiting
12
SMS Clinical Research LLC
Mesquite, Texas, United States, 75149
Actively Recruiting
13
DM Clinical Research
Tomball, Texas, United States, 77375
Actively Recruiting
14
J. Lewis Research, Inc. / Foothill Family Clinic
Salt Lake City, Utah, United States, 84109
Actively Recruiting
15
Charlottesville Medical Research Center, LLC
Charlottesville, Virginia, United States, 22911
Actively Recruiting
Research Team
P
Pfizer CT.gov Call Center
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
QUADRUPLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
PREVENTION
Number of Arms
7
Not the Right Trial for You?
Explore thousands of other clinical trials that might be a better match.
Sign up to get personalized trial recommendations delivered to your inbox.
Already have an account? Log in here