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ClinicalTrials.gov public records Last synced Oct 6, 2026, 10:02 AM EDT

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Showing 121–144 of 3,394 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Respiratory Viral Infections Clear all
Completed Phase 3 Interventional Accepts healthy volunteers

Immunogenicity, Safety and Tolerability of CSL Limited Inactivated Influenza Vaccine in Adults

NCT00333398
View directory record Official record
Conditions
Influenza
Interventions
CSL Trivalent Inactivated Influenza Vaccine - Thimerosal-free, CSL Trivalent Inactivated Influenza Vaccine with Thimerosal, Placebo with Thimerosal
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
1,359 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
10
States / cities
Stanford, California • Iowa City, Iowa • Baltimore, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2010 · Synced Oct 6, 2026, 10:02 AM EDT
Completed Not applicable Interventional Results available

Mobile Health Study and Enhanced Symptom Monitoring in COVID-19 Cancer Patients

NCT04397614
View directory record Official record
Conditions
Sars-CoV2, Covid-19
Interventions
mHealth Assessments
Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 24, 2023 · Synced Oct 6, 2026, 10:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Get Outside Study

NCT04685681
View directory record Official record
Conditions
Covid19, Risk Reduction, Stress, Sleep
Interventions
Hiking challenge, Activity list
Behavioral · Other
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jul 29, 2022 · Synced Oct 6, 2026, 10:02 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Optimizing Lymphatic Pumping for Influenza Vaccine Responses in Vulnerable Populations

NCT07786467
View directory record Official record
Conditions
No Disease or Condition is Being Directly Studied, The Focus of the Study in Healthy Volunteers
Interventions
Osteopathic manipulation, Sham
Other
Lead sponsor
Lake Erie College of Osteopathic Medicine
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Erie, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 6, 2026, 10:02 AM EDT
Terminated Not applicable Interventional

Prone Positioning in Awake Patients With COVID-19 Requiring Hospitalization

NCT04368000
View directory record Official record
Conditions
Respiratory Failure, COVID-19
Interventions
Intermittent prone positioning instructions, Usual care positioning with no instructions
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 3, 2020 · Synced Oct 6, 2026, 10:02 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study on the Incidence of Influenza and Its Complications, in Subjects Aged 50 Years and Over Vaccinated With Fluarix™

NCT00377611
View directory record Official record
Conditions
Influenza
Interventions
Fluarix™
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
50 Years and older
Enrollment
3,054 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
9
States / cities
Mobile, Alabama • Delray Beach, Florida • Pembroke Pines, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2018 · Synced Oct 6, 2026, 10:02 AM EDT
Completed No phase listed Observational

Post COVID-19 Vaccination Analysis in Healthcare Worker Recipients

NCT04922944
View directory record Official record
Conditions
Covid19, Vaccine Reaction
Interventions
COVID-19 vaccine
Drug
Lead sponsor
Huntington Memorial Hospital
Other
Eligibility
Not listed
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 6, 2026, 10:02 AM EDT
Completed Phase 3 Interventional Results available

Pre-exposure Prophylaxis for SARS-Coronavirus-2

NCT04328467
View directory record Official record
Conditions
COVID-19, Corona Virus Infection, ARDS, Acute Respiratory Distress Syndrome
Interventions
Hydroxychloroquine, Placebo
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
1,483 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
2
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 2, 2021 · Synced Oct 6, 2026, 10:02 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Point of Care Evaluation of Novir 2019-nCoV Immunoglobulin G/ Immunoglobulin M (IgG/IgM) Antibody Test (Collodial Gold)

NCT04902911
View directory record Official record
Conditions
Covid19
Interventions
COVID-19 SARS-CoV IgG/IgM antibody rapid test
Device
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
21 Years and older
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Wauwatosa, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 8, 2024 · Synced Oct 6, 2026, 10:02 AM EDT
Terminated Phase 3 Interventional Results available

A Study of Brexanolone for Acute Respiratory Distress Syndrome (ARDS) Due to Coronavirus Disease 2019 (COVID-19)

NCT04537806
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, COVID-19
Interventions
Brexanolone, Placebo
Drug
Lead sponsor
Sage Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
9
States / cities
Fresno, California • Augusta, Georgia • Boston, Massachusetts + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2022 · Synced Oct 6, 2026, 10:02 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

You and Me Healthy: Test to Treat

NCT07126392
View directory record Official record
Conditions
COVID - 19
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
8 Years and older
Enrollment
913 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
Merced, California • Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 17, 2025 · Synced Oct 6, 2026, 10:02 AM EDT
Withdrawn Phase 1Phase 2 Interventional

Effects of mTOR Inhibition With Sirolimus (RAPA) in Patients With COVID-19 to Moderate the Progression of ARDS

NCT04482712
View directory record Official record
Conditions
Acute Lung Injury/Acute Respiratory Distress Syndrome (ARDS), Respiratory Failure, Sars-CoV2
Interventions
Rapamycin, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
60 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
2
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 1, 2021 · Synced Oct 6, 2026, 10:02 AM EDT
Completed No phase listed Observational

COVID-19 Registry to Assess Frequency, Risk Factors, Management, and Outcomes of Arterial and Venous Thromboembolic Complications

NCT04535128
View directory record Official record
Conditions
Covid19, Thrombosis Embolism, DVT, Pulmonary Embolism, Myocardial Infarction, Stroke
Interventions
No intervention
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
11,000 participants
Timeline
2020 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Oct 6, 2026, 10:02 AM EDT
Not yet recruiting Phase 4 Interventional

The EMBRACE Study: Enflonsia Monoclonal in Babies - RSV Antibody Concentration Evaluation

NCT07824167
View directory record Official record
Conditions
RSV Infection
Interventions
Clesrovimab
Biological
Lead sponsor
Emory University
Other
Eligibility
Up to 8 Months
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Oct 6, 2026, 10:02 AM EDT
Not listed Not applicable Interventional

UNITE Study (UCSD-SW) for COVID-19

NCT04803409
View directory record Official record
Conditions
Covid19
Interventions
Splenic Ultrasound
Device
Lead sponsor
Imanuel Lerman
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Dec 10, 2021 · Synced Oct 6, 2026, 10:02 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Efficacy, Safety, and Immunogenicity of a Plant-Derived Quadrivalent Virus-Like Particles (VLPs) Influenza Vaccine in Adults

NCT03301051
View directory record Official record
Conditions
Virus Diseases, RNA Virus Infections, Respiratory Tract Diseases, Respiratory Tract Infections, Influenza
Interventions
Quadrivalent VLP Vaccine, Placebo
Biological
Lead sponsor
Medicago
Industry
Eligibility
18 Years to 64 Years
Enrollment
10,160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
29
States / cities
Mobile, Alabama • Anaheim, California • Milford, Connecticut + 23 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2023 · Synced Oct 6, 2026, 10:02 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The INFLUENTIAL Trial- Evaluation of National Inpatient Influenza Vaccination Program

NCT05832307
View directory record Official record
Conditions
Influenza
Interventions
Existing Influenza Vaccination Practices, Standardized inpatient influenza vaccination program
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
6 Months to 99 Years
Enrollment
22,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
2
States / cities
Chicago, Illinois • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Oct 6, 2026, 10:02 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety and Efficacy of mRNA-1345 Vaccine Targeting Respiratory Syncytial Virus (RSV) in Adults ≥60 Years of Age

NCT05127434
View directory record Official record
Conditions
Respiratory Syncytial Virus
Interventions
Placebo, mRNA-1345
Drug
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
60 Years and older
Enrollment
36,814 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
133
States / cities
Birmingham, Alabama • Guntersville, Alabama • Huntsville, Alabama + 114 more
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 6, 2026, 10:02 AM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Vaccine in Adults at Occupational Risk for Influenza A (H5N1) Exposure

NCT01045564
View directory record Official record
Conditions
Influenza
Interventions
GSK influenza virus H5N1 vaccine 1557484A
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
3
States / cities
Atlanta, Georgia • Bethesda, Maryland • Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 23, 2015 · Synced Oct 6, 2026, 10:02 AM EDT
Recruiting Phase 2Phase 3 Interventional

Study of Chemosensory Enhancement Through Neuromodulation Training (SCENT for Long COVID)

NCT05855369
View directory record Official record
Conditions
Smell Dysfunction, Olfactory Disorder, Long COVID
Interventions
Trigeminal Nerve Stimulation (TNS), Active Smell Training (ST), Placebo Smell Training (PBO)
Device · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Oct 6, 2026, 10:02 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of Wood Smoke Particles on Influenza-induced Nasal Inflammation in Normal Volunteers

NCT02183753
View directory record Official record
Conditions
Response of Viral Infection to Woodsmoke
Interventions
wood smoke, clean air
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 40 Years
Enrollment
39 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 Jun 11, 2015 · Synced Oct 6, 2026, 10:02 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Bioequivalence of Over-encapsulated Oseltamivir Capsules to Marketed Oseltamivir Capsules in Healthy Volunteers

NCT01258530
View directory record Official record
Conditions
Influenza, Human
Interventions
over-encapsulated oseltamivir, oseltamivir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jun 7, 2017 · Synced Oct 6, 2026, 10:02 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Health Information Technology for COVID-19 Testing in Schools (SCALE-UP Counts)

NCT05112900
View directory record Official record
Conditions
COVID-19
Interventions
Text Messaging (TM), Text Messaging + Health Navigation (TM+HN)
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
Not listed
Enrollment
7,122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 31, 2024 · Synced Oct 6, 2026, 10:02 AM EDT