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Showing 1–24 of 68 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Lower Respiratory Tract Infections Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study on the Immune Response and Safety of an RSV Vaccine When Given to Adults 18 Years of Age and Above Who Received Lung or Kidney Transplant and Are at an Increased Risk of Respiratory Syncytial Virus Lower Respiratory Tract Disease and Compared to Healthy Adults 50 Years of Age and Above

NCT05921903
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
RSVPreF3 OA Investigational Vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
386 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
10
States / cities
Phoenix, Arizona • Chicago, Illinois • Lexington, Kentucky + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Jul 21, 2026, 5:04 AM 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 21, 2026, 5:04 AM EDT
Completed Phase 2Phase 3 Interventional Results available

A Study to Evaluate the Safety of MEDI8897 for the Prevention of Medically Attended Respiratory Syncytial Virus(RSV) Lower Respiratory Track Infection (LRTI) in High-risk Children

NCT03959488
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
MEDI8897, Palivizumab
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
0 Years to 1 Year
Enrollment
925 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
30
States / cities
Anaheim, California • Long Beach, California • Los Angeles, California + 27 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2023 · Synced Jul 21, 2026, 5:04 AM 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 21, 2026, 5:04 AM EDT
Not listed No phase listed Observational

Pathogen Identification in Pediatric Hematopoietic Stem Cell Transplant Patients With Suspected Lower Respiratory Tract Infection

NCT02926612
View directory record Official record
Conditions
Lower Respiratory Tract Infections
Interventions
Next Generation Genomic Sequencing
Other
Lead sponsor
Pediatric Blood and Marrow Transplant Foundation, Inc.
Other
Eligibility
Up to 21 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 30, 2018 · Synced Jul 21, 2026, 5:04 AM EDT
Completed No phase listed Observational

Trimethoprim-Sulfamethoxazole vs Levofloxacin as Targeted Therapy for Stenotrophomonas Maltophilia Infections: a Retrospective Cohort Study

NCT04639817
View directory record Official record
Conditions
Stenotrophomonas Infection
Interventions
Levofloxacin, trimethoprim-sulfamethoxazole
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years and older
Enrollment
1,621 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Jul 21, 2026, 5:04 AM 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 21, 2026, 5:04 AM 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 21, 2026, 5:04 AM 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 21, 2026, 5:04 AM EDT
Completed Not applicable Interventional

C-reactive Protein (CRP)-Guided Management Algorithm for Adults With Acute Cough

NCT00221351
View directory record Official record
Conditions
Cough
Interventions
CRP point of care testing
Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
2
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated May 22, 2011 · Synced Jul 21, 2026, 5:04 AM 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 21, 2026, 5:04 AM EDT
Completed Phase 2 Interventional Results available

RI-001 in Immunosuppressed Respiratory Syncytial Virus (RSV) Infected Patients at Risk of Lower Tract RSV Illness

NCT00632463
View directory record Official record
Conditions
Upper Respiratory Tract Infection, Lower Respiratory Tract Infection
Interventions
RI-001
Biological
Lead sponsor
ADMA Biologics, Inc.
Industry
Eligibility
2 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
15
States / cities
San Francisco, California • Aurora, Colorado • Washington D.C., District of Columbia + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2013 · Synced Jul 21, 2026, 5:04 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Grasshopper: a Novel Clinical Dashboard for Radiologists

NCT06785246
View directory record Official record
Conditions
Chest Infection, Pulmonary Edema - Acute
Interventions
Grasshopper dashboard
Other
Lead sponsor
Kaiser Permanente
Other
Eligibility
Not listed
Enrollment
100,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Pleasanton, California
Source: ClinicalTrials.gov public record
Updated Jan 20, 2025 · Synced Jul 21, 2026, 5:04 AM EDT
Completed No phase listed Observational

An Epidemiological Study to Evaluate the RSV-Associated Lower Respiratory Track in Infections in Infants

NCT00369759
View directory record Official record
Conditions
Respiratory Infections, Bronchiolitis, Pneumonia, Apnea
Interventions
Emergency Dept. Subjects with LRI or Apnea
Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
1 Day to 12 Months
Enrollment
2,048 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
38
States / cities
Phoenix, Arizona • Sylmar, California • Denver, Colorado + 29 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2009 · Synced Jul 21, 2026, 5:04 AM 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 21, 2026, 5:04 AM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study of BLB-201 RSV Vaccine in Infants and Children

NCT05655182
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
PIV5-vectored RSV Vaccine (BLB-201) Low Dose, PIV5-vectored RSV Vaccine (BLB-201) High Dose, Placebo
Biological · Drug
Lead sponsor
Blue Lake Biotechnology Inc.
Industry
Eligibility
6 Months to 5 Years
Enrollment
137 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
15
States / cities
La Mesa, California • Modesto, California • Aurora, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Jul 21, 2026, 5:04 AM 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 21, 2026, 5:04 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Efficacy Study of GSK's Investigational Respiratory Syncytial Virus (RSV) Vaccine in Adults Aged 60 Years and Above

NCT04886596
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
Placebo, RSVPreF3 OA vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
60 Years and older
Enrollment
26,675 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
60
States / cities
Birmingham, Alabama • Huntsville, Alabama • Phoenix, Arizona + 54 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Jul 21, 2026, 5:04 AM EDT
Completed Phase 3 Interventional Results available

Safety of AZLI in Children With Cystic Fibrosis (CF) and Chronic Pseudomonas Aeruginosa in the Lower Airways

NCT01404234
View directory record Official record
Conditions
Cystic Fibrosis, Pseudomonas Aeruginosa
Interventions
AZLI
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
Up to 12 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
10
States / cities
Aurora, Colorado • Jacksonville, Florida • Chicago, Illinois + 7 more
Source: ClinicalTrials.gov public record
Updated May 28, 2014 · Synced Jul 21, 2026, 5:04 AM EDT
Active, not recruiting No phase listed Observational

A Study to Learn How Effective is PCV20 to Help Stop Adults Who Have a Higher Chance of Getting Pneumonia

NCT07251465
View directory record Official record
Conditions
Pneumonia
Interventions
Receipt of PCV20
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
846,279 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 21, 2026, 5:04 AM EDT
Completed Phase 2 Interventional Results available

Presatovir in Hematopoietic Cell Transplant Recipients With Respiratory Syncytial Virus (RSV) Infection of the Lower Respiratory Tract

NCT02254421
View directory record Official record
Conditions
Respiratory Syncytial Virus Infection
Interventions
Presatovir, Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
11
States / cities
Duarte, California • Chicago, Illinois • Baltimore, Maryland + 8 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2018 · Synced Jul 21, 2026, 5:04 AM EDT
Completed Not applicable Interventional

A Noninvasive Multimodal Biosensing Device for Screening and Monitoring Response to Treatment of Infectious Respiratory Diseases

NCT05035420
View directory record Official record
Conditions
COVID-19, Upper Respiratory Infection, Lower Respiratory Infection
Interventions
Fitbit, Douglas Bag, Periflux 6000 EPOS, BIOPAC, Flowmet, NIRS
Device
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years to 78 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Jul 21, 2026, 5:04 AM EDT
Completed No phase listed Observational Results available

Detection of Microorganisms and Antibiotic Resistance Genes Using the Curetis Unyvero LRT55 Application

NCT01922024
View directory record Official record
Conditions
Pneumonia
Interventions
LRT55 Testing
Device
Lead sponsor
Curetis GmbH
Industry
Eligibility
18 Years and older
Enrollment
2,124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
9
States / cities
Los Angeles, California • Chicago, Illinois • Baltimore, Maryland + 6 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2019 · Synced Jul 21, 2026, 5:04 AM 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 21, 2026, 5:04 AM EDT