Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 4, 2026, 3:51 AM EDT

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Showing 1–7 of 7 matching trials from the live ClinicalTrials.gov search.
Conditions
Influenza
Interventions
High-Dose trivalent influenza vaccine (Split virion, Inactivated), Standard-dose trivalent influenza vaccine (Split virion, Inactivated)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
50 Years to 64 Years
Enrollment
1,180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
20
States / cities
Los Alamitos, California • Fort Myers, Florida • Hollywood, Florida + 16 more
Recruiting No phase listed Observational Accepts healthy volunteers

Fluad vs. Fluzone High-Dose Vaccine Effectiveness Among Adults ≥65 Years

NCT06029933
Conditions
Influenza, Community-acquired Pneumonia, Cardiovascular Events
Interventions
Adjuvanted Quadrivalent Inactivated Influenza Vaccine (aIIV4), High-Dose Quadrivalent Inactivated Influenza Vaccine (HD-IIV4)
Biological
Lead sponsor
Kaiser Permanente
Other
Eligibility
65 Years and older
Enrollment
1,500,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Oakland, California
Conditions
Orthomyxoviridae Infection, Influenza, Myxovirus Infection
Interventions
High-Dose Inactivated, Split-Virion Influenza Vaccine, Inactivated, Split-Virion Influenza Vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
65 Years and older
Enrollment
3,851 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
28
States / cities
Mesa, Arizona • Phoenix, Arizona • Tempe, Arizona + 25 more
Conditions
Influenza, Myxovirus Infection
Interventions
Split, Inactivated, Trivalent Influenza Vaccine (Intradermal Formulation 1), Split, Inactivated, Trivalent Influenza Vaccine (Intradermal Formulation 2), Split, Inactivated, Trivalent Influenza Vaccine (Standard dose), Split, Inactivated, Trivalent Influenza Vaccine (High-dose)
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
2,098 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
29
States / cities
Alabaster, Alabama • Mobile, Alabama • Chandler, Arizona + 26 more
Conditions
Influenza, Orthomyxoviruses, Myxovirus Infection
Interventions
Influenza virus vaccine - cell-based (2007-2008 Formulation), Influenza virus vaccine (2007-2008 Formulation)
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 49 Years
Enrollment
729 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
15
States / cities
Hoover, Alabama • Mobile, Alabama • Tucson, Arizona + 12 more
Conditions
Influenza
Interventions
High-Dose Quadrivalent Influenza Vaccine (QIV-HD) 30 μg (split-virion, inactivated), High-Dose Quadrivalent Influenza Vaccine (QIV-HD) 45 μg, (split-virion, inactivated), High-Dose Quadrivalent Influenza Vaccine (QIV-HD) 60 µg (split-virion, inactivated), Fluarix Quadrivalent Influenza vaccine (Unadjuvanted QIV-SD) (Inactivated), FLUAD Pediatric (adjuvanted TIV) (Surface Antigen, Inactivated)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 17 Years
Enrollment
665 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
13
States / cities
San Diego, California • Miami, Florida • Atlanta, Georgia + 8 more
Conditions
COVID-19 Immunization, Influenza Immunization
Interventions
IIV-HD, rC19 (dose 1), IIV-HD + rC19 (dose 1), IIV-HD + rC19 (dose 2), IIV-HD + rC19 (dose 3), IIV-HD + rC19 (dose 4), Placebo (0.9% NaCl)
Biological · Other
Lead sponsor
Sanofi
Industry
Eligibility
50 Years and older
Enrollment
980 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
12
States / cities
Birmingham, Alabama • Huntsville, Alabama • Tucson, Arizona + 9 more