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ClinicalTrials.gov public records Last synced Oct 6, 2026, 6:30 PM EDT

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Showing 1–24 of 70 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: FluMist intranasal influenza vaccine Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Cam2020 M2SR H3N2 Monovalent Influenza Vaccine Alone or With Licensed IIV in Older Adults

NCT05163847
View directory record Official record
Conditions
Influenza Vaccine
Interventions
Cam2020 M2SR H3N2 influenza vaccine, Fluzone HD IIV, IN Placebo, IM Placebo
Biological · Other
Lead sponsor
FluGen Inc
Industry
Eligibility
65 Years to 85 Years
Enrollment
303 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
6
States / cities
Port Orange, Florida • Meridian, Idaho • Lenexa, Kansas + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 14, 2022 · Synced Oct 6, 2026, 6:30 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of the Safety and Immunogenicity of NasoVAX Extension

NCT03760549
View directory record Official record
Conditions
Influenza
Interventions
Subjects were administered NasoVAX high dose
Drug
Lead sponsor
Altimmune, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 19, 2025 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Genetic and Environmental Factors in the Response to Influenza Vaccination

NCT03088904
View directory record Official record
Conditions
Influenza, Healthy
Interventions
FluMist® Quadrivalent, Fluzone® Quadrivalent vaccine
Biological
Lead sponsor
Stanford University
Other
Eligibility
12 Years to 49 Years
Enrollment
109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 13, 2020 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

The Effects of Attenuated Versus Inactivated Flu Vaccine in Twin Sets

NCT03898986
View directory record Official record
Conditions
Influenza
Interventions
Live attenuated influenza vaccine (LAIV4), Inactivated Influenza Vaccine (IIV4)
Biological
Lead sponsor
Stanford University
Other
Eligibility
2 Years to 20 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 6, 2025 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

D2560C00015 FluMist Annual Safety Study 2018

NCT03564444
View directory record Official record
Conditions
Influenza, Healthy
Interventions
Bivalent influenza vaccine, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
2
States / cities
Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Dec 26, 2019 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Immunogenicity of Quadrivalent LAIV in Adults 18 to 49 Years of Age

NCT00860067
View directory record Official record
Conditions
Healthy or Stable Underlying Chronic Medical Condition
Interventions
Q/LAIV (MEDI3250), FluMist/B/Yamagata, FluMist/B/Victoria
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
1,800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
18
States / cities
Sacramento, California • San Diego, California • San Francisco, California + 15 more
Source: ClinicalTrials.gov public record
Updated Dec 5, 2011 · Synced Oct 6, 2026, 6:30 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Kinetics of B-Cell Responses to Live, Attenuated Influenza Vaccine (LAIV) in Young Children Two Years of Age

NCT03020472
View directory record Official record
Conditions
Influenza
Interventions
2008-2009 FluMist LAIV (Intranasal)
Biological
Lead sponsor
Stanford University
Other
Eligibility
24 Months to 35 Months
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 18, 2021 · Synced Oct 6, 2026, 6:30 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Effect of Age and Prior Immunity on Response to H1N1 Vaccines in Children

NCT01097941
View directory record Official record
Conditions
2009 H1N1 Influenza
Interventions
Live Attenuated H1N1 Influenza Vaccine, Influenza A (H1N1) 2009 Monovalent Vaccine, Influenza A (H1N1) 2009 Monovalent Vaccine/ Influenza A (H1N1) Monovalent Vaccine Live
Biological
Lead sponsor
University of Rochester
Other
Eligibility
4 Years to 9 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Sep 24, 2015 · Synced Oct 6, 2026, 6:30 PM EDT
Not yet recruiting Phase 4 Interventional Accepts healthy volunteers

How Healthy Adults Respond to the Nasal Flu Vaccine

NCT07726862
View directory record Official record
Conditions
Mucosal Immune Response to Influenza Vaccination
Interventions
FluMist (Live Attenuated Influenza Vaccine)
Biological
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2031
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 24, 2026 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

FLU-VACS Comparative Study in Adults

NCT00133523
View directory record Official record
Conditions
Influenza
Interventions
Cold-adapted live attenuated influenza virus vaccine, trivalent, Placebo, Trivalent inactivated influenza vaccine
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
2,349 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2007
U.S. locations
6
States / cities
Ann Arbor, Michigan • Kalamazoo, Michigan • Livonia, Michigan + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 5, 2014 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Clinical Study to Assess the Safety of a New Influenza Vaccine

NCT01104493
View directory record Official record
Conditions
Healthy
Interventions
Monovalent Frozen FluMist®, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
3
States / cities
South Miami, Florida • Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 18, 2011 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Bacterial Composition and Immune Responses in the Nose and Oropharynx During Influenza Infection

NCT02597647
View directory record Official record
Conditions
Influenza
Interventions
LAIV, Saline
Biological · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 64 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study to Evaluate the Safety of 1 New 6:2 Influenza Virus Reassortant in Adults for the 2017-2018 Season

NCT03158038
View directory record Official record
Conditions
Influenza, Healthy
Interventions
Monovalent Influenza Vaccine, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
2
States / cities
Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 4, 2019 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study of Seasonal Influenza Vaccine Against H5N1 Avian Influenza Virus

NCT01044095
View directory record Official record
Conditions
Influenza
Interventions
FluMist® live, attenuated, intranasal seasonal influenza vaccine, Fluzone® inactivated influenza virus vaccine
Biological
Lead sponsor
Armed Forces Research Institute of Medical Sciences, Thailand
Government
Eligibility
18 Years to 49 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
0
States / cities
Not listed
Source: ClinicalTrials.gov public record
Updated Jul 23, 2013 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 1 Interventional Results available

Safety Study to Evaluate FluMist in Immunocompromised Children

NCT00112112
View directory record Official record
Conditions
Cancer
Interventions
FluMist, Placebo
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
5 Years to 17 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
5
States / cities
Rochester, New York • Stony Brook, New York • Memphis, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2017 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Innate and Acquired Immunity to Influenza Infection and Immunization (SLVP029)

NCT03028974
View directory record Official record
Conditions
Influenza
Interventions
Fluzone®, FluMist®
Biological
Lead sponsor
Stanford University
Other
Eligibility
6 Months to 49 Years
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 14, 2018 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Study to Evaluate the Effectiveness of FluMist Vaccination in a School-Based Intervention Program

NCT00192218
View directory record Official record
Conditions
Influenza
Interventions
FluMist
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
5 Years to 17 Years
Enrollment
3,022 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
2
States / cities
Baltimore, Maryland • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 22, 2008 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of the Sing2016 M2SR H3N2 Monovalent Influenza Vaccine in Adults Ages 50 to 85 Years Old

NCT04785794
View directory record Official record
Conditions
Influenza Vaccine
Interventions
Sing2016 M2SR H3N2 influenza vaccine, Placebo
Biological · Other
Lead sponsor
FluGen Inc
Industry
Eligibility
50 Years to 85 Years
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
3
States / cities
Anaheim, California • DeLand, Florida • Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 15, 2023 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety Study of Flufirvitide-3 Nasal Spray in Healthy Subjects

NCT01313962
View directory record Official record
Conditions
Influenza
Interventions
Flufirvitide-3 0.05 mg single dose, Flufirvitide-3, 0.1 mg single dose, Flufirvitide-3, 0.2 mg single dose, Flufirvitide-3, 0.4 mg single dose, Placebo
Drug · Other
Lead sponsor
Autoimmune Technologies, LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 16, 2012 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Comparative Study of Influenza Vaccines in Adults, FLUVACS-year 4

NCT00538512
View directory record Official record
Conditions
Influenza
Interventions
Fluzone, Flumist, Physiologic saline
Biological · Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 49 Years
Enrollment
1,952 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
4
States / cities
Ann Arbor, Michigan • Kalamazoo, Michigan • Mount Pleasant, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 6, 2017 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Immunogenicity of Quadrivalent Live Attenuated Influenza Vaccine (LAIV) in Children

NCT01091246
View directory record Official record
Conditions
Healthy or Stable Chronic Illness
Interventions
Q/LAIV (MEDI3250), FluMist/B/Yamagata, FluMist/B/Victoria
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
2 Years to 17 Years
Enrollment
2,312 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
110
States / cities
Birmingham, Alabama • Mobile, Alabama • Tucson, Arizona + 95 more
Source: ClinicalTrials.gov public record
Updated Sep 26, 2011 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Prospective Study to Evaluate the Safety of a New Trivalent Intranasal Influenza Vaccine

NCT00677820
View directory record Official record
Conditions
Influenza
Interventions
Trivalent influenza virus vaccine, Placebo
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
3
States / cities
Daytona Beach, Florida • Portland, Oregon • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 22, 2010 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 1 Interventional

A Study of a Live Intranasal Influenza Vaccine in Children With Cancer

NCT00906750
View directory record Official record
Conditions
Cancer
Interventions
FluMist, Inactivated influenza vaccine
Biological
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
2 Years to 21 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 13, 2011 · Synced Oct 6, 2026, 6:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Prospective Study to Evaluate the Safety of a New Monovalent Intranasal Influenza Vaccine

NCT00873912
View directory record Official record
Conditions
Healthy
Interventions
Monovalent influenza virus vaccine, Placebo
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
3
States / cities
Daytona Beach, Florida • Portland, Oregon • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jul 14, 2011 · Synced Oct 6, 2026, 6:30 PM EDT