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ClinicalTrials.gov public records Last synced Oct 5, 2026, 6:09 AM EDT

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Showing 1–24 of 49 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Lower Respiratory Tract Infection (LRTI) Clear all
Withdrawn No phase listed Observational Accepts healthy volunteers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 16, 2020 · Synced Oct 5, 2026, 6:09 AM EDT
Completed No phase listed Observational

Rapid Diagnostic Supporting Antimicrobial Stewardship in Patients With Pneumonia

NCT05937126
View directory record Official record
Conditions
Lower Respiratory Tract Infections
Interventions
FilmArray Pneumonia Panel, Culture and antimicrobial susceptibility testing
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
1,203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Oct 5, 2026, 6:09 AM EDT
Completed No phase listed Observational

Epidemiology Of Respiratory Virus Infections In Children

NCT01167361
View directory record Official record
Conditions
Respiratory Virus Infection
Interventions
Not listed
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Up to 18 Years
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 31, 2012 · Synced Oct 5, 2026, 6:09 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 31, 2018 · Synced Oct 5, 2026, 6:09 AM 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 16, 2025 · Synced Oct 5, 2026, 6:09 AM 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 4, 2009 · Synced Oct 5, 2026, 6:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Prospective, Epidemiological Study to Assess the Disease Burden of Respiratory Syncytial Virus Associated, Suspected Lower Respiratory Tract Infections in Newborns, From 0 to 2 Years of Age and Risk of Development of Wheeze and Asthma From 0 to 6 Years of Age

NCT01995175
View directory record Official record
Conditions
Respiratory Syncytial Virus
Interventions
Nasal swab sampling, Blood sampling, Diary cards
Procedure · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
Up to 6 Years
Enrollment
2,409 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2021
U.S. locations
9
States / cities
Oakland, California • Sacramento, California • Santa Clara, California + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 29, 2022 · Synced Oct 5, 2026, 6:09 AM EDT
Terminated Phase 4 Interventional

KEYS: Study Comparing Clinical Health Outcomes of Telithromycin Versus Azithromycin in Outpatients With Community-acquired Lower Respiratory Tract Infections

NCT00132951
View directory record Official record
Conditions
Respiratory Tract Infections, Chronic Bronchitis, Pneumonia
Interventions
Telithromycin, Azithromycin
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 35 Years
Enrollment
2,051 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 27, 2009 · Synced Oct 5, 2026, 6:09 AM 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 7, 2023 · Synced Oct 5, 2026, 6:09 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Rhinovirus Hospitalization and Investigation of Nasal-airway Omics (RHINO) Study

NCT07342582
View directory record Official record
Conditions
Rhinovirus
Interventions
Nasal Swab Healthy Surveillance, Nasal Swab Sick Samples, Nasal Swab Hospitalized Cohort, Sick Follow-up Survey, Older Cohort Control Group, Procedural Comfort or Care
Diagnostic Test · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Up to 17 Years
Enrollment
670 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 5, 2026, 6:09 AM 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 29, 2024 · Synced Oct 5, 2026, 6:09 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
37
States / cities
Los Angeles, California • Modesto, California • Toluca Lake, California + 23 more
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 5, 2026, 6:09 AM 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 9, 2021 · Synced Oct 5, 2026, 6:09 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 23, 2026 · Synced Oct 5, 2026, 6:09 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 17, 2021 · Synced Oct 5, 2026, 6:09 AM EDT
Enrolling by invitation No phase listed Observational

Study on Home Obstructive Respiratory Exacerbations

NCT06544928
View directory record Official record
Conditions
COPD Exacerbation, COPD (Chronic Obstructive Pulmonary Disease) With Acute Lower Respiratory Infection, COPD Exacerbation Acute, COPD
Interventions
RESP™ Biosensor
Device
Lead sponsor
Strados Labs, Inc.
Industry
Eligibility
40 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Oct 5, 2026, 6:09 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
18
States / cities
La Mesa, California • Modesto, California • San Diego, California + 14 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 5, 2026, 6:09 AM EDT
Active, not recruiting No phase listed Observational

Evaluating ABRYSVO Maternal Vaccine Effectiveness Among Infants

NCT07249320
View directory record Official record
Conditions
Respiratory Syncytial Virus (RSV)
Interventions
ABRYSVO
Biological
Lead sponsor
Pfizer
Industry
Eligibility
0 Years to 50 Years
Enrollment
1 participant
Timeline
2025 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Oct 5, 2026, 6:09 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 21, 2025 · Synced Oct 5, 2026, 6:09 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 24, 2018 · Synced Oct 5, 2026, 6:09 AM EDT
Terminated Not applicable Interventional Results available

Placebo-Controlled Trial of Antibiotic Therapy in Adults With Suspect Lower Respiratory Tract Infection (LRTI) and a Procalcitonin Level

NCT03341273
View directory record Official record
Conditions
Lower Respiratory Tract Infection
Interventions
Azithromycin, Placebo, VIDAS B.R.A.H.M.S Procalcitonin Test (PCT)
Drug · Other · Device
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
514 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
5
States / cities
Atlanta, Georgia • Decatur, Georgia • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2023 · Synced Oct 5, 2026, 6:09 AM EDT
Completed Not applicable Interventional Results available

Procalcitonin Antibiotic Consensus Trial (ProACT)

NCT02130986
View directory record Official record
Conditions
Lower Respiratory Tract Infection (LRTI)
Interventions
Procalcitonin level, Results of procalcitonin (PCT) level to treating clinician, Provide procalcitonin guideline to treating clinician, Telephone Visit
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
1,664 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
13
States / cities
Birmingham, Alabama • Phoenix, Arizona • Orange, California + 8 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2019 · Synced Oct 5, 2026, 6:09 AM 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 4, 2021 · Synced Oct 5, 2026, 6:09 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety and Efficacy of MEDI8897 for the Prevention of Medically Attended RSV LRTI in Healthy Preterm Infants.

NCT02878330
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
MEDI8897, Placebo
Drug
Lead sponsor
MedImmune LLC
Industry
Eligibility
Up to 365 Days
Enrollment
1,453 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
60
States / cities
Birmingham, Alabama • Anaheim, California • Downey, California + 53 more
Source: ClinicalTrials.gov public record
Updated Oct 14, 2019 · Synced Oct 5, 2026, 6:09 AM EDT