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ClinicalTrials.gov public records Last synced Oct 20, 2026, 8:44 AM EDT

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Showing 601–624 of 1,159 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 3 Interventional Results available

Safety and Immunogenicity of Three Influenza Vaccines Adults Ages 18 and Older

NCT01992094
View directory record Official record
Conditions
Influenza
Interventions
QIVc, TIV1c, TIV2c
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
18 Years and older
Enrollment
2,680 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
40
States / cities
Huntsville, Alabama • Phoenix, Arizona • Anaheim, California + 33 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2015 · Synced Oct 20, 2026, 8:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Kinetics of the Immune Response to Inactivated Influenza Vaccine in Healthy Adults

NCT03743688
View directory record Official record
Conditions
Influenza, Influenza, Human, Vaccine Reaction, Influenza A, Influenza Type B, Influenza A H1N1, Influenza A H3N2
Interventions
Influenza Vaccine Recipients
Biological
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 5, 2019 · Synced Oct 20, 2026, 8:44 AM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Opioid, HIV and Immune System

NCT04304768
View directory record Official record
Conditions
Immune Defect
Interventions
Fluzone Quadrivalent
Biological
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 60 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Not applicable Interventional Results available

PregText: Feasibility of Monitoring Influenza Vaccine Safety in Pregnant Women Using Text Messaging

NCT01974050
View directory record Official record
Conditions
Pregnancy
Interventions
Text message surveillance
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older · Female only
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 12, 2018 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assessment of CR6261, a Monoclonal Antibody Against the Influenza A Virus

NCT01406418
View directory record Official record
Conditions
Influenza
Interventions
CR6261 2 mg/kg, CR6261 5 mg/kg, CR6261 15 mg/kg, CR6261 30 mg/kg, CR6261 50 mg/kg, Placebo
Biological
Lead sponsor
Crucell Holland BV
Industry
Eligibility
18 Years to 50 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 19, 2013 · Synced Oct 20, 2026, 8:44 AM EDT
Completed No phase listed Observational

Evaluation of Viral Shedding Patterns and Clinical Outcomes of Influenza Patients

NCT01839760
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
Crucell Holland BV
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 22, 2014 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Different Formulations of an Adjuvanted A/H1N1 Pandemic Vaccine in Healthy Adults and the Elderly

NCT00952276
View directory record Official record
Conditions
Influenza, Swine-origin A/H1N1 Influenza
Interventions
Monovalent Subvirion A/H1N1 influenza vaccine with adjuvant, Monovalent Subvirion A/H1N1 influenza vaccine, Normal saline solution
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
548 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
15
States / cities
Anaheim, California • Fountain Valley, California • South Miami, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 3, 2011 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Influenza Challenge Study to Determine the Optimal Infection Dose and Safety of a Recombinant H3N2 (A/Texas/71/2017 (H3N2, Clade 3C3a) Influenza Strain

NCT04978454
View directory record Official record
Conditions
Influenza
Interventions
Influenza RG-A/Texas/71/2017 (H3N2) Challenge, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
Baltimore, Maryland • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Beta-glucan and Immune Response to Influenza Vaccine

NCT05074303
View directory record Official record
Conditions
Healthy Aging
Interventions
Influenza Vaccine, Beta-glucan, Placebo
Biological · Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
50 Years to 100 Years
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 6, 2025 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Home Administration of FluMist by Parents/Caregivers

NCT01938170
View directory record Official record
Conditions
Influenza
Interventions
FluMist
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
2 Years to 17 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 26, 2016 · Synced Oct 20, 2026, 8:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Afluria Pregnancy Registry

NCT03442582
View directory record Official record
Conditions
Influenza, Human, Pregnancy, Birth Defect
Interventions
Afluria Influenza Vaccine
Biological
Lead sponsor
Seqirus
Industry
Eligibility
Female only
Enrollment
490 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Wilmington, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 9, 2022 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety and Immunogenicity of MEDI7510 in Older Adults

NCT02289820
View directory record Official record
Conditions
Respiratory Syncytial Virus (RSV)
Interventions
MEDI7510, IIV
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
60 Years to 99 Years
Enrollment
363 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
5
States / cities
Orlando, Florida • South Miami, Florida • Kansas City, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2018 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 2Phase 3 Interventional

COmbination Therapy With Baloxavir and Oseltamivir 1 for Hospitalized Patients With Influenza (The COMBO Trial 1)

NCT04327791
View directory record Official record
Conditions
Influenza
Interventions
Baloxavir, Placebos
Drug
Lead sponsor
Bassett Healthcare
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
3
States / cities
Springfield, Massachusetts • Cooperstown, New York • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 2 Interventional Results available

A Study To Assess the Immune Response Following Administration Of Influenza and Pneumococcal Vaccines To Subjects With Rheumatoid Arthritis Receiving CP-690,550 Or Placebo

NCT01359150
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
CP-690,550, placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
223 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
51
States / cities
Gilbert, Arizona • Paradise Valley, Arizona • Jonesboro, Arkansas + 45 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2013 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Not applicable Interventional Results available

Patient Portal Reminder/Recall for Influenza Vaccination in a Health System- UCLA Portal R/R Influenza RCT 3

NCT04533685
View directory record Official record
Conditions
Influenza, Respiratory Tract Infections
Interventions
Portal Reminders for Influenza Vaccination: Direct scheduling link, Portal Reminders for Influenza Vaccination: No direct scheduling link, Pre-Commitment Prompt, Pre-Appointment flu vaccine reminders
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
4 Months and older
Enrollment
213,773 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 25, 2022 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Not applicable Interventional Results available

The Respiratory Protection Effectiveness Clinical Trial

NCT01249625
View directory record Official record
Conditions
Influenza, Respiratory Syncytial Viruses, Paramyxoviridae Infections, Coronavirus, Rhinovirus
Interventions
N95 Respirator, Medical/surgical mask
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
2,862 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2018
U.S. locations
7
States / cities
Aurora, Colorado • Denver, Colorado • Washington D.C., District of Columbia + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2019 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of Quadrivalent Influenza Vaccine Among Adults

NCT01218646
View directory record Official record
Conditions
Influenza
Interventions
Investigational Quadrivalent Inactivated Influenza Vaccine, No Preservative, Investigational Trivalent Inactivated Influenza Vaccine, No Preservative, Fluzone®: 2010-2011 Trivalent Inactivated Influenza Vaccine, No Preservative
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
739 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
12
States / cities
Hoover, Alabama • South Miami, Florida • Springfield, Missouri + 9 more
Source: ClinicalTrials.gov public record
Updated Oct 23, 2013 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study About Modified RNA Vaccines Against Influenza in Healthy Adults

NCT06436703
View directory record Official record
Conditions
Influenza, Human
Interventions
Influenza ModRNA Vaccine, Quadrivalent Influenza Vaccine (QIV)
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1,202 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
32
States / cities
Mobile, Alabama • Scottsdale, Arizona • Anaheim, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 4 Interventional Results available

Evaluating The Safety And Clinical Efficacy Of Elderberry Extract In Patients With Influenza

NCT03410862
View directory record Official record
Conditions
Influenza, Human
Interventions
Elderberry Extract, Placebos
Drug
Lead sponsor
michael macknin
Other
Eligibility
5 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 19, 2021 · Synced Oct 20, 2026, 8:44 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Vaccination Response in Individual Monozygotic Twins

NCT02296359
View directory record Official record
Conditions
Individuality, Asthma, Immune System and Related Disorders
Interventions
Influenza Vaccination
Biological
Lead sponsor
Michigan State University
Other
Eligibility
18 Years to 80 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 14, 2015 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

First-in-Human Clinical Trial of a Mosaic Quadrivalent Influenza Vaccine Compared With a Licensed Inactivated Seasonal QIV in Healthy Adults

NCT04896086
View directory record Official record
Conditions
Influenza, Seasonal Influenza
Interventions
VRC-GENADJ0110-AP-NV (Adjuplex), Flucelvax, VRC-FLUMOS0111-00-VP (FluMos-v1)
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 27, 2025 · Synced Oct 20, 2026, 8:44 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Sulforaphane (SFN) on Immune Response to Live Attenuated Influenza Virus in Smokers and Nonsmokers

NCT01269723
View directory record Official record
Conditions
Smoking
Interventions
Broccoli sprout homogenate, Alfalfa sprout homogenate
Dietary Supplement
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 40 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 29, 2014 · Synced Oct 20, 2026, 8:44 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Response to Live Attenuated Influenza Vaccine in Tonsillar Tissues and Blood

NCT03884296
View directory record Official record
Conditions
Influenza
Interventions
FluMist
Biological
Lead sponsor
Stanford University
Other
Eligibility
2 Years to 49 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Nov 21, 2023 · Synced Oct 20, 2026, 8:44 AM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Study of the Protective Effect of an Injectable Influenza Vaccine Against Influenza Illness in Adults Under 50 y.o.

NCT00216242
View directory record Official record
Conditions
Influenza
Interventions
Influenza virus vaccine (Fluviral), Saline placebo
Biological
Lead sponsor
ID Biomedical Corporation, Quebec
Industry
Eligibility
18 Years to 49 Years
Enrollment
7,400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
43
States / cities
Sacramento, California • San Francisco, California • Denver, Colorado + 34 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2006 · Synced Oct 20, 2026, 8:44 AM EDT