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ClinicalTrials.gov public records Last synced Oct 9, 2026, 7:17 AM EDT

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Showing 1–3 of 3 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Non-adjuvanted Trivalent Influenza Vaccine (TIV) / Quadrivalent Influenza Vaccine (QIV) Clear all
Completed Phase 3 Interventional Accepts healthy volunteers

A Clinical Study to Evaluate the Efficacy, Safety and Immunogenicity of an Adjuvanted Influenza Vaccine Compared to a Non-adjuvanted Influenza Vaccine in Adults ≥65 Years of Age

NCT06087640
View directory record Official record
Conditions
Influenza, Human
Interventions
aQIV or aTIV, QIV or TIV
Biological
Lead sponsor
Seqirus
Industry
Eligibility
65 Years and older
Enrollment
38,769 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
111
States / cities
Birmingham, Alabama • Cullman, Alabama • Phoenix, Arizona + 96 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 9, 2026, 7:17 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Aging on Primary and Secondary Vaccine Responses

NCT03312699
View directory record Official record
Conditions
Influenza, Hepatitis A, Typhoid, Healthy Adults
Interventions
Fluzone® quadrivalent, Fluzone High Dose, Fluad, Vaqta, Typhim Vi, Vivotif
Biological
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 16, 2024 · Synced Oct 9, 2026, 7:17 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Clinical Study to Evaluate the Safety, Immunogenicity and Efficacy of Investigational Flu Vaccine Compared to Approved Flu Vaccine in Children.

NCT01964989
View directory record Official record
Conditions
Influenza Virus
Interventions
Adjuvanted Quadrivalent Subunit Influenza Virus Vaccine (aQIV), Non-adjuvanted Trivalent Influenza Vaccine (TIV) / Quadrivalent Influenza Vaccine (QIV)
Biological
Lead sponsor
Seqirus
Industry
Eligibility
6 Months to 71 Months
Enrollment
10,644 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
91
States / cities
Chandler, Arizona • Harrisburg, Arkansas • Anaheim, California + 70 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2023 · Synced Oct 9, 2026, 7:17 AM EDT