New flu vaccine shows promise for teens and adults
NCT ID NCT05513053
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tested a recombinant flu vaccine (RIV4) in over 1,300 people aged 9 to 49. The goal was to see if the immune response in children and teens (9-17) was as good as in adults (18-49). Researchers measured antibody levels before and 29 days after vaccination. The trial also monitored safety for all participants.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Quadrivalent recombinant influenza vaccine (RIV4), also known as Supemtek or Flublok Quadrivalent
What this could lead to
If successful, this could confirm that the recombinant flu vaccine works as well in teens as in adults, offering a safe option for younger age groups.
What could go wrong
This is a completed phase 3 trial, but results only show immune response and short-term safety. Long-term protection and real-world effectiveness are not yet proven.
Disclaimer
Read more
Show less
This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for INFLUENZA IMMUNIZATION are added.
By submitting, you agree to our Terms of use
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Show contact details
Enter your email to view the contact information for this study.
By submitting, you agree to our Terms of use
Locations
-
AMR - Newton Site Number : 8400021
Newton, Kansas, 67114, United States
-
Alabama Clinical Therapeutics North Tower Site Number : 8400024
Birmingham, Alabama, 35205, United States
-
Benchmark Research - Austin Site Number : 8400004
Austin, Texas, 78705, United States
-
Birmingham Pediatric Associates Site Number : 8400023
Birmingham, Alabama, 35205, United States
-
California Research Foundation Site Number : 8400003
San Diego, California, 92123-1881, United States
-
Coastal Carolina Research Center - N Charleston Site Number : 8400022
North Charleston, South Carolina, 29405, United States
-
Coastal Pediatric Research Charleston Site Number : 8400005
Charleston, South Carolina, 29414, United States
-
Investigational Site Number : 2030001
Jindřichův Hradec, 37701, Czechia
-
Investigational Site Number : 6160003
Bydgoszcz, 85-796, Poland
-
Investigational Site Number : 6160004
PuÅ'awy, Lubusz Voivodeship, 24-100, Poland
-
Investigational Site Number : 6160005
Siemianowice Śląskie, Silesian Voivodeship, 41-103, Poland
-
Investigational Site Number : 6160006
Tarnów, 33-100, Poland
-
Investigational Site Number : 6160007
Bydgoszcz, Kuyavian-Pomeranian Voivodeship, 85-079, Poland
-
Investigational Site Number : 6160008
Warsaw, 02-637, Poland
-
Investigational Site Number : 6160010
Bydgoszcz, Kuyavian-Pomeranian Voivodeship, 85-048, Poland
-
Investigational Site Number : 6160012
Wroclaw, 53-149, Poland
-
Investigational Site Number : 7240001
Móstoles, 28938, Spain
-
Investigational Site Number : 7240005
Málaga, 29015, Spain
-
Investigational Site Number : 7240006
Centelles, Barcelona [Barcelona], 08540, Spain
-
Investigational Site Number : 7240007
Seville, 41014, Spain
-
Investigational Site Number : 7240018
Madrid, 28660, Spain
-
J. Lewis Research Site Number : 8400017
Salt Lake City, Utah, 84109, United States
-
JBR Clinical Research Site Number : 8400001
Salt Lake City, Utah, 84107, United States
-
Kentucky Pediatics / Adult Research Site Number : 8400010
Bardstown, Kentucky, 40004, United States
-
Meridian Clinical Research Norfolk Site Number : 8400011
Norfolk, Nebraska, 68701, United States
-
Meridian Clinical Research Site Number : 8400006
Binghamton, New York, 13905, United States
-
Meridian Clinical Research- Sioux City Site Number : 8400007
Sioux City, Iowa, 51106, United States
-
Ohio Pediatric Research Site Number : 8400020
Dayton, Ohio, 45414, United States
-
Rainbow Pediatrics Site Number : 8400014
Barnwell, South Carolina, 29812, United States
-
The Children's Clinic Of Jonesboro PA Site Number : 8400025
Jonesboro, Arkansas, 72401, United States
-
Velocity Clinical Research Lincoln Site Number : 8400013
Lincoln, Nebraska, 68510, United States
-
Velocity Clinical Research Portsmouth Site Number : 8400015
Portsmouth, Virginia, 23703, United States
-
Velocity Clinical Research Site Number : 8400012
New Orleans, Louisiana, 70119, United States
-
Velocity Clinical Research Vestal Site Number : 8400016
Vestal, New York, 13850, United States
-
Velocity Clinical Research, Omaha Site Number : 8400009
Omaha, Nebraska, 68134, United States