Super flu shot for middle-aged adults? new study shows promise
NCT ID NCT06641180
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a high-dose flu vaccine works better than the standard dose in adults aged 50 to 64. About 1,180 participants received either the high-dose or standard-dose shot, and researchers measured their immune response 28 days later. The goal is to see if the stronger dose provides better protection against the flu for this age group.
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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
Locations
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Alliance for Multispeciality Research - Fort Myers- Site Number : 8400019
Fort Myers, Florida, 33912, United States
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Alliance for Multispeciality Research - Lexington- Site Number : 8400002
Lexington, Kentucky, 40509, United States
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Alliance for Multispeciality Research - Newton- Site Number : 8400003
Newton, Kansas, 67114, United States
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Alliance for Multispecialty Research - Volunteer Research Group- Site Number : 8400001
Knoxville, Tennessee, 37920, United States
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Aventiv Research Columbus- Site Number : 8400016
Columbus, Ohio, 43213, United States
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CBH Health - Gaithersburg- Site Number : 8400004
Gaithersburg, Maryland, 20877, United States
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CenExel CNS- Site Number : 8400005
Los Alamitos, California, 90720, United States
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Cenexel IRA - iResearch Atlanta- Site Number : 8400007
Decatur, Georgia, 30030, United States
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Cenexel IRS - iResearch Savannah- Site Number : 8400008
Savannah, Georgia, 31405, United States
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Centricity Morehead- Site Number : 8400014
Morehead City, North Carolina, 28557, United States
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Centricity New Bern- Site Number : 8400015
New Bern, North Carolina, 28562, United States
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Centricity Research - Rincon- Site Number : 8400012
Rincon, Georgia, 31406, United States
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Centricity Research - Suffolk Primary Care - Centricity - PPDS- Site Number : 8400013
Suffolk, Virginia, 23435-3763, United States
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Hassman Research Institute - Berlin- Site Number : 8400006
Berlin, New Jersey, 08009, United States
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IACT Health - Columbus - Talbotton Road- Site Number : 8400011
Columbus, Georgia, 31904, United States
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JBR Clinical Research- Site Number : 8400009
Salt Lake City, Utah, 84107, United States
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Kaiser Permanente Center for Health Research- Site Number : 8400018
Portland, Oregon, 97227, United States
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Kaiser Permanente Washington- Site Number : 8400024
Seattle, Washington, 98101, United States
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Research Centers of America - Hollywood- Site Number : 8400010
Hollywood, Florida, 33024, United States
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The Hope Clinic of Emory Vaccine Center- Site Number : 8400017
Decatur, Georgia, 30030, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a simple mask stop the flu? 2,000 volunteers put it to the test
- Can a stronger flu shot better protect seniors?
- Flu shot showdown: Cell-Grown vs recombinant vaccine put to the test
- New mRNA vaccine aims to outsmart flu by targeting its hidden parts