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ClinicalTrials.gov public records Last synced Oct 18, 2026, 2:06 PM EDT

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Showing 1225–1248 of 3,928 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Respiratory Tract Infections (RTI) Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Pneumococcal Vaccination Rates in an Ambulatory Pre-surgical Testing Setting

NCT01787838
View directory record Official record
Conditions
Community Acquired Pneumonia
Interventions
Focused Health Education
Other
Lead sponsor
Carilion Clinic
Other
Eligibility
18 Years to 110 Years
Enrollment
2,509 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 19, 2017 · Synced Oct 18, 2026, 2:06 PM EDT
Recruiting Early Phase 1 Interventional

Piloting Virtual Reality Environments to Treat PTSD in Healthcare Workers

NCT04887116
View directory record Official record
Conditions
Posttraumatic Stress Disorder
Interventions
Virtual Reality Exposure Therapy
Behavioral
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 18, 2026, 2:06 PM EDT
Withdrawn Not applicable Interventional

Melodica Orchestra for Dyspnea: Safety and Feasibility Pilot

NCT03653104
View directory record Official record
Conditions
COPD, Chronic Obstructive Pulmonary Disease, Dyspnea, Breathlessness, Emphysema, Chronic Bronchitis
Interventions
Melodica Intervention, Pulmonary Health Education
Behavioral
Lead sponsor
VA Quality Enhancement Research Intiative
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 15, 2021 · Synced Oct 18, 2026, 2:06 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Age and Response to Flu Vaccines

NCT03328325
View directory record Official record
Conditions
Influenza, Influenza Immunisation
Interventions
Influenza Virus Quadrivalent Inactivated Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
9 Years to 99 Years
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
2
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Aug 28, 2026 · Synced Oct 18, 2026, 2:06 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Characterizing the Human Airway Immune Response to FluMist Vaccination

NCT07177417
View directory record Official record
Conditions
Healthy Young Adults, Influenza Vaccines, Influenza Vaccine Response
Interventions
FluMist, inactivated influenza vaccine, bronchoscopy
Biological · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 17, 2025 · Synced Oct 18, 2026, 2:06 PM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Pilot Influenza Challenge Study

NCT07063849
View directory record Official record
Conditions
Influenza
Interventions
A/Texas
Biological
Lead sponsor
Daniel Hoft, MD, PhD
Other
Eligibility
18 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Oct 18, 2026, 2:06 PM EDT
Terminated Not applicable Interventional

Nebulized PL for Post-COVID-19 Syndrome

NCT04487691
View directory record Official record
Conditions
Covid19
Interventions
Nebulized Platelet Lysate, Nebulized Sterile Saline
Biological · Other
Lead sponsor
Regenexx, LLC
Industry
Eligibility
18 Years to 85 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Broomfield, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 4, 2022 · Synced Oct 18, 2026, 2:06 PM EDT
Completed No phase listed Observational

Genetic Influences of Albuterol Response In Children With Bronchiolitis

NCT00570297
View directory record Official record
Conditions
Bronchiolitis
Interventions
Not listed
Lead sponsor
Connecticut Children's Medical Center
Other
Eligibility
Up to 2 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2018
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 30, 2023 · Synced Oct 18, 2026, 2:06 PM EDT
Withdrawn Phase 4 Interventional

Perforomist Versus Foradil Evaluated by Inspiratory Capacity and High Resolution Computed Tomography (HRCT)

NCT00633776
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, COPD, Chronic Bronchitis, Emphysema
Interventions
formoterol fumarate
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
40 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 4, 2016 · Synced Oct 18, 2026, 2:06 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A/Texas Flu Challenge

NCT06753474
View directory record Official record
Conditions
Influenza
Interventions
Influenza Virus influenza A H3N2 strain
Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years to 49 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Oct 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Message Encouraging Vaccination in Preparation for the Holidays

NCT05612360
View directory record Official record
Conditions
COVID-19
Interventions
COVID Booster text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
520,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 3, 2023 · Synced Oct 18, 2026, 2:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Sanofi Pasteur Quadrivalent Influenza Vaccine (QIV) Pregnancy Registry

NCT01945424
View directory record Official record
Conditions
Pregnancy, Influenza
Interventions
Quadrivalent Influenza Vaccine (QIV)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older · Female only
Enrollment
244 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
5
States / cities
San Diego, California • Albany, New York • Columbus, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2020 · Synced Oct 18, 2026, 2:06 PM EDT
Active, not recruiting No phase listed Observational

A Study to Learn About ABRYSVO Vaccine in Older Adults to Prevent Severe Respiratory Syncytial Virus (RSV) Disease

NCT06077968
View directory record Official record
Conditions
Respiratory Syncytial Viruses
Interventions
Prior standard of care receipt of Pfizer's ABRYSVO vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Oct 18, 2026, 2:06 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Infectivity, Replication & Immunogenicity of Live nH1N1 Vaccine

NCT01023776
View directory record Official record
Conditions
Influenza
Interventions
A/California/07/09 live monovalent H1N1 vaccine
Biological
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 32 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 23, 2015 · Synced Oct 18, 2026, 2:06 PM EDT
Not listed No phase listed Observational

Gazelle COVID-19 Test Clinical Accuracy Protocol

NCT04987918
View directory record Official record
Conditions
Covid19
Interventions
Applied Biosystems TaqPath COVID- 19 Combo Kit
Diagnostic Test
Lead sponsor
Hemex Health
Industry
Eligibility
Not listed
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Bellingham, Washington
Source: ClinicalTrials.gov public record
Updated Aug 10, 2022 · Synced Oct 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Residential Care Transition Module

NCT02915939
View directory record Official record
Conditions
Alzheimer Disease, Dementia
Interventions
The Residential Care Transition Module
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
21 Years and older
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 3, 2022 · Synced Oct 18, 2026, 2:06 PM EDT
Not yet recruiting Phase 4 Interventional

Short Versus Standard Amoxicillin for Pediatric Strep Throat

NCT07845812
View directory record Official record
Conditions
Group A Streptococcal (GAS) Pharyngitis
Interventions
5 day short course antibiotic treatment, 10 day standard of care antibiotic treatment
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
3 Years to 18 Years
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 18, 2026, 2:06 PM EDT
Completed Phase 2 Interventional Results available

Improving Cognitive Health in COVID-19 Survivors

NCT04843930
View directory record Official record
Conditions
Cognitive Dysfunction, Covid19
Interventions
AKL-T01
Device
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 89 Years
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 29, 2024 · Synced Oct 18, 2026, 2:06 PM EDT
Completed Not applicable Interventional Results available

A Digital Flu Intervention for People With Cardiovascular Conditions

NCT04584645
View directory record Official record
Conditions
Cardiovascular Diseases, Atrial Fibrillation, Abnormal Heart Rhythms, Cardiac Arrest, Heart Attack, Myocardial Infarction, Coronary Heart Disease, Heart Failure, Stroke, Cerebrovascular Accident
Interventions
Targeted digital intervention
Other
Lead sponsor
Evidation Health
Industry
Eligibility
18 Years and older
Enrollment
49,138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
San Mateo, California
Source: ClinicalTrials.gov public record
Updated Jun 21, 2022 · Synced Oct 18, 2026, 2:06 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Efficacy Study of Fluzone® Vaccine Combined With Different Doses of JVRS-100 Adjuvant

NCT00662272
View directory record Official record
Conditions
Influenza
Interventions
Fluzone vaccine with JVRS-100 adjuvant, Fluzone vaccine
Biological
Lead sponsor
Colby Pharmaceutical Company
Industry
Eligibility
18 Years to 49 Years
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
2
States / cities
Miami, Florida • Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 17, 2010 · Synced Oct 18, 2026, 2:06 PM EDT
Completed Phase 2 Interventional Results available

Double Blind, Placebo Controlled Study of Safety and Efficacy of Leronlimab in Patients With "Long" COVID-19

NCT04678830
View directory record Official record
Conditions
Coronavirus Disease 2019
Interventions
Placebos, Leronlimab (700mg)
Drug
Lead sponsor
CytoDyn, Inc.
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
2
States / cities
Aventura, Florida • Gainesville, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 11, 2024 · Synced Oct 18, 2026, 2:06 PM EDT
Completed No phase listed Observational

COVID-19 Endoscopy Survey

NCT04342637
View directory record Official record
Conditions
COVID-19
Interventions
Practice details
Other
Lead sponsor
Al-Azhar University
Other
Eligibility
30 Years to 70 Years
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Albertson, New York
Source: ClinicalTrials.gov public record
Updated May 20, 2020 · Synced Oct 18, 2026, 2:06 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity, Safety, Reactogenicity, Efficacy, Effectiveness and Lot Consistency of FluBlok

NCT00539981
View directory record Official record
Conditions
Influenza
Interventions
FluBlok®, Placebo
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 49 Years
Enrollment
4,648 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
24
States / cities
Beverly Hills, California • Sacramento, California • San Francisco, California + 20 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2022 · Synced Oct 18, 2026, 2:06 PM EDT
Completed No phase listed Observational

Pilot Test of COVID-19 Related Clinical Outcome Assessment Methodology and Qualitative Evidence of Content Validity

NCT05207293
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
Synairgen Research Ltd.
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 4, 2023 · Synced Oct 18, 2026, 2:06 PM EDT