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Showing 1–24 of 25 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Viral Lower Respiratory Tract Infections Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Cardiac Magnetic Resonance Tissue Characterization in COVID-19 Survivors

NCT05164744
View directory record Official record
Conditions
COVID-19 Pneumonia, COVID-19, COVID-19 Respiratory Infection, COVID-19 Acute Respiratory Distress Syndrome, COVID-19 Lower Respiratory Infection, COVID-19 Acute Bronchitis, Coronavirus Disease 2019
Interventions
Cardiac MRI, Echocardiogram, 6-minute walk test, Questionnaire
Diagnostic Test
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
510 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
3
States / cities
Brooklyn, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Jul 23, 2026, 3:05 PM EDT
Completed No phase listed Observational

Diagnosing Respiratory Disease in Children Using Cough Sounds 2

NCT03392363
View directory record Official record
Conditions
Pneumonia, Bronchiolitis, Asthma Exacerbation, Croup, Reactive Airway Disease, Upper Respiratory Disease, Viral Lower Respiratory Tract Infections, Lower Respiratory Disease
Interventions
Recordings of Infants and Children's Cough Sounds
Device
Lead sponsor
ResApp Health Limited
Industry
Eligibility
29 Days to 12 Years
Enrollment
1,470 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
3
States / cities
Boston, Massachusetts • Cleveland, Ohio • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 7, 2018 · Synced Jul 23, 2026, 3:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Integrating Targeted MedlinePlus Health Prescriptions Into Clinic Practice Workflow

NCT00634608
View directory record Official record
Conditions
Allergic Rhinitis, Asthma, Back Pain, Benign Prostatic Hypertrophy, Bursitis, Depression, Anxiety, Diabetes Mellitus, Esophageal Reflux, HIV Infections, Hyperlipidemia, Hypertension, Insomnia, Irritable Bowel Syndrome, Obesity, Osteoporosis (Senile), Shoulder Pain, Sinusitis, Symptomatic Menopause, Urinary Incontinence, Urinary Tract Infection, Vaginitis
Interventions
Health Information Prescription
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years and older
Enrollment
224 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 29, 2016 · Synced Jul 23, 2026, 3:05 PM EDT
Recruiting Phase 2 Interventional

PUL-042 Treatment in Patients With Parainfluenza Virus (PIV), Human Metapneumovirus (hMPV) or Respiratory Syncytial Virus (RSV)

NCT06665100
View directory record Official record
Conditions
Hematologic Malignancies, Hematopoietic Stem Cell Transplant (HSCT)
Interventions
PUL-042, Placebo
Drug
Lead sponsor
Pulmotect, Inc.
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
11
States / cities
Duarte, California • Atlanta, Georgia • Baltimore, Maryland + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Jul 23, 2026, 3:05 PM EDT
Completed Not applicable Interventional

Comparative Effectiveness of Readmission Reduction Interventions for Individuals with Sepsis or Pneumonia

NCT04829188
View directory record Official record
Conditions
Sepsis, Pneumonia, Lower Resp Tract Infection, Covid19
Interventions
Structured Telephone Support (STS), Low-intensity Remote Patient Monitoring (RPM-Low), High-intensity Remote Patient Monitoring (RPM-High), Standard Response Team, Enhanced Response Team
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
21 Years and older
Enrollment
1,288 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 15, 2025 · Synced Jul 23, 2026, 3:05 PM EDT
Completed No phase listed Observational Results available

Evaluation of Moderate to Severe Influenza Outcomes in Children

NCT02979626
View directory record Official record
Conditions
Influenza, Otitis Media, Lower Resp Tract Infection, Encephalitic Infection, Myositis Viral, Fever
Interventions
Respiratory nasal swab
Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
6 Months to 8 Years
Enrollment
1,478 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
Aurora, Colorado • Broomfield, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Jul 23, 2026, 3:05 PM EDT
Completed No phase listed Observational

A Study to Investigate How Respiratory Syncytial Virus (RSV) Infection Develops and Changes Over Time in Pediatric Participants

NCT06746051
View directory record Official record
Conditions
RSV Infections
Interventions
Not listed
Lead sponsor
Shionogi
Industry
Eligibility
Up to 36 Months
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
2
States / cities
Syracuse, New York • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Jul 23, 2026, 3:05 PM EDT
Recruiting Phase 2 Interventional

A Study of S-337395 in Symptomatic Nonhospitalized Adults With Respiratory Syncytial Virus (RSV) Who Are at High Risk of Progression to Severe Disease

NCT07214571
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
S-337395, Placebo
Drug
Lead sponsor
Shionogi
Industry
Eligibility
18 Years and older
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
34
States / cities
Los Angeles, California • Toluca Lake, California • Coral Gables, Florida + 20 more
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Jul 23, 2026, 3:05 PM EDT
Completed No phase listed Observational

Pharmacokinetics of Understudied Drugs Administered to Children Per Standard of Care

NCT01431326
View directory record Official record
Conditions
Adenovirus, Anesthesia, Anxiety, Anxiolysis, Autism, Autistic Disorder, Bacterial Meningitis, Bacterial Septicemia, Benzodiazepine, Bipolar Disorder, Bone and Joint Infections, Central Nervous System Infections, Convulsions, Cytomegalovirus Retinitis, Early-onset Schizophrenia Spectrum Disorders, Epilepsy, General Anesthesia, Gynecologic Infections, Herpes Simplex Virus, Infantile Hemangioma, Infection, Inflammation, Inflammatory Conditions, Intra-abdominal Infections, Lower Respiratory Tract Infections, Migraines, Pain, Pneumonia, Schizophrenia, Sedation, Seizures, Skeletal Muscle Spasms, Skin and Skin-structure Infections, Treatment-resistant Schizophrenia, Urinary Tract Infections, Withdrawal, Sepsis, Gram-negative Infection, Bradycardia, Cardiac Arrest, Cardiac Arrhythmia, Staphylococcal Infections, Nosocomial Pneumonia, Neuromuscular Blockade, Methicillin Resistant Staphylococcus Aureus, Endocarditis, Neutropenia, Headache, Fibrinolytic Bleeding, Pulmonary Arterial Hypertension, CMV Retinitis, Hypertension, Chronic Kidney Diseases, Hyperaldosteronism, Hypokalemia, Heart Failure, Hemophilia, Heavy Menstrual Bleeding, Insomnia
Interventions
The POPS study is collecting PK data on children prescribed the following drugs of interest per standard of care:
Drug
Lead sponsor
Daniel Benjamin
Other
Eligibility
Up to 21 Years
Enrollment
3,520 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
43
States / cities
Anchorage, Alaska • Little Rock, Arkansas • La Jolla, California + 37 more
Source: ClinicalTrials.gov public record
Updated Sep 5, 2023 · Synced Jul 23, 2026, 3:05 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Pandemic Response Network

NCT04320862
View directory record Official record
Conditions
COVID-19, SARS-CoV-2, Coronavirus, Influenza -Like Illness, Lower Resp Tract Infection, Upper Resp Tract Infection
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
9,207 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 16, 2021 · Synced Jul 23, 2026, 3:05 PM EDT
Recruiting Phase 3 Interventional

Phase III DAS181 Lower Tract PIV Infection in Immunocompromised Subjects (Substudy: DAS181 for COVID-19): RCT Study

NCT03808922
View directory record Official record
Conditions
Lower Respiratory Tract Infection, Parainfluenza, Immunocompromised, COVID-19
Interventions
DAS181, Placebo, DAS181 COVID-19, DAS181 OL
Drug
Lead sponsor
Ansun Biopharma, Inc.
Industry
Eligibility
Not listed
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
23
States / cities
Duarte, California • Sacramento, California • Chicago, Illinois + 17 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Jul 23, 2026, 3:05 PM EDT
Completed Not applicable Interventional Results available

Transcutaneous Electrical Nerve Stimulation (TENS) in Patients With Postacute Sequelae of Sars-CoV-2

NCT05200858
View directory record Official record
Conditions
Postacute Sequelae of Sars-CoV-2, Post-Acute COVID-19 Syndrome, Widespread Chronic Pain, Fatigue Syndrome, Chronic, Gait, Unsteady
Interventions
TENS - high-dose, TENS - low-dose
Device
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 15, 2024 · Synced Jul 23, 2026, 3:05 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

NAC for Attenuation of COVID-19 Symptomatology

NCT05074121
View directory record Official record
Conditions
Covid19, COVID-19 Pneumonia, COVID-19 Respiratory Infection, COVID-19 Lower Respiratory Infection, SARS-CoV2 Infection, SARS-CoV-2 Acute Respiratory Disease, SARS-Associated Coronavirus as Cause of Disease Classified Elsewhere, Oxidative Stress
Interventions
N-acetylcysteine, Placebo
Drug · Other
Lead sponsor
Cambridge Health Alliance
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Everett, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 6, 2023 · Synced Jul 23, 2026, 3:05 PM EDT
Completed No phase listed Observational

A Retrospective Study of COVID-19 Treatments

NCT04949230
View directory record Official record
Conditions
Covid19, COVID-19 Pneumonia, COVID-19 Respiratory Infection, COVID-19 Acute Bronchitis, COVID-19 Acute Respiratory Distress Syndrome, COVID-19 Lower Respiratory Infection, SARS-CoV2 Infection, SARS-CoV-2 Acute Respiratory Disease
Interventions
No Intervention Used
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
18 Months and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Jul 23, 2026, 3:05 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of an Adenovirus Serotype 26 Pre-fusion Conformation-stabilized F Protein (Ad26. RSV. preF) Based Respiratory Syncytial Virus (RSV) Vaccine in the Prevention of Lower Respiratory Tract Disease in Adults Aged 60 Years and Older

NCT04908683
View directory record Official record
Conditions
Respiratory Syncytial Viruses, Lower Respiratory Tract Disease
Interventions
Adenovirus serotype 26 (Ad26)-based respiratory syncytial virus (RSV). preF, Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
60 Years and older
Enrollment
25,236 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
156
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 126 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Jul 23, 2026, 3:05 PM EDT
Completed Phase 4 Interventional Results available

Comparing the Effects of Different Doses of Dexamethasone to Treat Inpatient COVID-19

NCT04707534
View directory record Official record
Conditions
Covid19
Interventions
Dexamethasone
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 28, 2024 · Synced Jul 23, 2026, 3:05 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Exhaled Nitric Oxide Levels in Infants and Young Children Infected With RSV or Other Viral Infections

NCT01098227
View directory record Official record
Conditions
Bronchiolitis, Infection, Nitric Oxide
Interventions
Not listed
Lead sponsor
NYU Langone Health
Other
Eligibility
Up to 4 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Mar 15, 2020 · Synced Jul 23, 2026, 3:05 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Tolerability Study to Evaluate MEDI-534 in Children 6 to < 24 Months of Age

NCT00493285
View directory record Official record
Conditions
Respiratory Viral Infections, Respiratory Syncytial Virus Infections, Parainfluenza Virus 3, Human
Interventions
MEDI-534
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
6 Months to 23 Months
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
30
States / cities
Conway, Arkansas • Little Rock, Arkansas • Aurora, Colorado + 25 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2012 · Synced Jul 23, 2026, 3:05 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Exhaled Nitric Oxide in Respiratory Syncytial Virus (RSV) Bronchiolitis: a Pilot Study

NCT01090557
View directory record Official record
Conditions
RSV Infection, Bronchiolitis
Interventions
Collection of exhaled breath
Other
Lead sponsor
Winthrop University Hospital
Other
Eligibility
1 Day to 4 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Mar 21, 2010 · Synced Jul 23, 2026, 3:05 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 10, 2026 · Synced Jul 23, 2026, 3:05 PM EDT
Completed No phase listed Observational

Study to Evaluate the Incidence of Hospitalizations and Respiratory Tract Infections in Premature Infants

NCT00384462
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
Not listed
Lead sponsor
MedImmune LLC
Industry
Eligibility
1 Month to 6 Months
Enrollment
346 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
59
States / cities
Birmingham, Alabama • Benton, Arkansas • Jonesboro, Arkansas + 50 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2009 · Synced Jul 23, 2026, 3:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Osteopathic Manipulative Therapy Effects on Prolonged Post-COVID Olfactory Dysfunction

NCT05112887
View directory record Official record
Conditions
COVID-19 Lower Respiratory Infection, SARS-CoV2 Infection
Interventions
Osteopathic Manipulative Therapy
Other
Lead sponsor
Ohio University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Dublin, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 8, 2021 · Synced Jul 23, 2026, 3:05 PM EDT
Recruiting Not applicable Interventional

Reducing Overuse of Antibiotics With Decision Support

NCT06788093
View directory record Official record
Conditions
Lower Respiratory Tract Infection, Pneumonia, Asthma, Bronchiolitis, Viral
Interventions
ED Clinical Decision Support (CDS-ED), Transitions Clinical Decision Support (CDS-Tr)
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
6 Months to 17 Years
Enrollment
2,800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
3
States / cities
Oakland, California • San Francisco, California • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Jul 23, 2026, 3:05 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Safety of MEDI-534 Vaccine Against Respiratory Syncytial Virus (RSV) and Parainfluenza Virus Type 3 (PIV3) in Healthy Children

NCT00345670
View directory record Official record
Conditions
Healthy
Interventions
MEDI-534
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
1 Year to 9 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
12
States / cities
Fountain Valley, California • Shawnee, Kansas • Topeka, Kansas + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2008 · Synced Jul 23, 2026, 3:05 PM EDT