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ClinicalTrials.gov public records Last synced Oct 16, 2026, 4:03 PM EDT

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Showing 889–912 of 3,928 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Respiratory Tract Infections (RTI) Clear all
Completed Phase 2 Interventional Results available

Strategies To Prevent Pneumonia 2 (SToPP2)

NCT00893763
View directory record Official record
Conditions
Infections, Hospital, Ventilator-Associated Pneumonia, Mechanical Ventilation Complication
Interventions
Pre-intubation CHX, Control
Procedure
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
314 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 11, 2016 · Synced Oct 16, 2026, 4:03 PM EDT
Enrolling by invitation No phase listed Observational

Microbial and Cytokine Signatures in Long COVID Patients

NCT07074158
View directory record Official record
Conditions
Post-Acute COVID-19 Syndrome
Interventions
Not listed
Lead sponsor
Palo Alto Medical Foundation
Other
Eligibility
18 Years and older
Enrollment
150 participants
Timeline
2025 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jul 20, 2025 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pertussis Vaccine in Healthy Pregnant Women

NCT00707148
View directory record Official record
Conditions
Diphtheria, Pertussis, Tetanus
Interventions
Placebo, Tetanus toxoid, reduced diphtheria toxoid and acellular pertussis vaccine adsorbed
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Up to 45 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
4
States / cities
Durham, North Carolina • Houston, Texas • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 25, 2014 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Not applicable Interventional

Pilot Study of Vitamin K2 (MK-7) and Vitamin D3 Supplementation and the Effects on PASC Symptomatology and Inflammatory Biomarkers

NCT05356936
View directory record Official record
Conditions
Post-acute COVID-19 Syndrome
Interventions
Vitamin K2 (MK-7), Vitamin D3
Dietary Supplement
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 27, 2024 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment, Feedback, Incentive, Exchange (AFIX OB) A Customizable Quality Improvement Intervention to Increase Maternal Vaccine Uptake

NCT04678271
View directory record Official record
Conditions
Influenza, Whooping Cough
Interventions
AFIX-OB Quality Improvement Package
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
202 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 16, 2026, 4:03 PM EDT
Enrolling by invitation Not applicable Interventional

Trans Thoracic Manipulation of Ventilation/Perfusion: the V/Q System

NCT04369599
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, COVID-19
Interventions
V/Q System
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Not applicable Interventional

UNITE Study (UMN-SW) for COVID-19

NCT04854798
View directory record Official record
Conditions
Covid19, Cytokine Storm, Inflammation
Interventions
Splenic Ultrasound
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Burnsville, Minnesota • Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated May 3, 2024 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Phase 2 Interventional Results available

The Safety and Preliminary Tolerability of Lyophilized Lucinactant in Adults With Coronavirus Disease 2019 (COVID-19)

NCT04389671
View directory record Official record
Conditions
COVID-19, Acute Lung Injury/Acute Respiratory Distress Syndrome (ARDS)
Interventions
Lucinactant
Drug
Lead sponsor
Windtree Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
7
States / cities
La Jolla, California • San Diego, California • Augusta, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2023 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Phase 1 Interventional

Standard Dose Versus High-Dose Inactivated Flu Vaccine in Pediatric Solid Organ Transplant Patients

NCT01525004
View directory record Official record
Conditions
Pediatric Solid Organ Transplant Patients
Interventions
High-Dose trivalent inactivated influenza vaccine, Standard dose trivalent inactivated influenza vaccine
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
3 Years to 17 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 16, 2016 · Synced Oct 16, 2026, 4:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Functional Implications of TNF

NCT00729131
View directory record Official record
Conditions
Bronchitis
Interventions
Etanercept inhibition of ozone-induced airway hyper-responsiveness.
Drug
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 35 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 29, 2014 · Synced Oct 16, 2026, 4:03 PM EDT
Suspended Phase 2 Interventional

Safety and Effectiveness of VL-PX10 + VL-P22 Treatment on Pulmonary Fibrosis Secondary to Covid-19

NCT05387239
View directory record Official record
Conditions
Pulmonary Fibrosis, COVID-19 Respiratory Infection
Interventions
VL-PX10 and VL-P22 plus standard care, Placebo
Drug
Lead sponsor
Vitti Labs, LLC
Industry
Eligibility
25 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Liberty, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 16, 2026, 4:03 PM EDT
Recruiting Phase 3 Interventional

EPIC-Peds: A Study to Learn About the Study Medicine Called PF-07321332 (Nirmatrelvir)/Ritonavir in Patients Under 18 Years of Age With COVID-19 That Are Not Hospitalized But Are at Risk for Severe Disease

NCT05261139
View directory record Official record
Conditions
COVID-19
Interventions
nirmatrelvir, ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
0 Years to 17 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
50
States / cities
Phoenix, Arizona • Los Angeles, California • Washington D.C., District of Columbia + 32 more
Source: ClinicalTrials.gov public record
Updated Jul 17, 2025 · Synced Oct 16, 2026, 4:03 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Bioaerosol Sampling Device (BSD) Clinical Study

NCT06047067
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
Cantor BioConnect, Inc.
Network
Eligibility
5 Years and older
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
6
States / cities
South Gate, California • Hollywood, Florida • Pembroke Pines, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 16, 2026, 4:03 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Study to Assess Adverse Events and How Oral ABBV-990 Moves Through the Body of Adult Healthy Participants

NCT05475821
View directory record Official record
Conditions
Healthy Volunteers
Interventions
ABBV-990, Placebo for ABBV-990
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Grayslake, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 27, 2022 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Not applicable Interventional

Brain-Training Treatment for Long COVID in Older Adults

NCT05705193
View directory record Official record
Conditions
Post-Acute COVID-19 Syndrome
Interventions
NeuroFlex (computerized gamified tasks)
Other
Lead sponsor
UConn Health
Other
Eligibility
60 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 14, 2026 · Synced Oct 16, 2026, 4:03 PM EDT
Terminated Phase 2Phase 3 Interventional

Trial of Iseganan in Prevention of Ventilator-Associated Pneumonia

NCT00118781
View directory record Official record
Conditions
Pneumonia
Interventions
iseganan hydrochloride
Drug
Lead sponsor
IntraBiotics Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 19, 2005 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Phase 2 Interventional Results available

Camostat Efficacy vs. Placebo for Outpatient Treatment of COVID-19 (CAMELOT)

NCT04583592
View directory record Official record
Conditions
COVID-19
Interventions
Camostat Mesilate, Placebo
Drug
Lead sponsor
Sagent Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older
Enrollment
295 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
21
States / cities
Palm Springs, California • Bradenton, Florida • Brandon, Florida + 16 more
Source: ClinicalTrials.gov public record
Updated Jan 18, 2022 · Synced Oct 16, 2026, 4:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID Card Pilot Study to Detect Antibodies to SARS-CoV-2

NCT05196932
View directory record Official record
Conditions
COVID-19, SARS-CoV2 Infection
Interventions
Novel point-of-care, semi-quantitative test for SARS-CoV-2 antibodies
Device
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 10, 2023 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Post-operative Sore Throat as Determined by Endotracheal Tube Inflation Technique

NCT01305265
View directory record Official record
Conditions
Post Operative Sore Throat, Dysphagia, Hoarseness
Interventions
cuff manometer
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
141 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 26, 2014 · Synced Oct 16, 2026, 4:03 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

INB03 for the Treatment of Pulmonary Complications From COVID-19

NCT04370236
View directory record Official record
Conditions
COVID-19
Interventions
INB03, Placebo
Drug
Lead sponsor
Inmune Bio, Inc.
Industry
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
9
States / cities
Jonesboro, Arkansas • Louisville, Kentucky • Kosciusko, Mississippi + 4 more
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Phase 1 Study of Intranasal PIV5 COVID-19 Vaccine Expressing SARS-CoV-2 Spike Protein in Healthy Adults and Adolescents

NCT04954287
View directory record Official record
Conditions
Covid19
Interventions
CVXGA1 low dose, CVXGA1 high dose
Biological
Lead sponsor
CyanVac LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
4
States / cities
Bardstown, Kentucky • Rochester, New York • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2024 · Synced Oct 16, 2026, 4:03 PM EDT
Withdrawn Phase 2 Interventional

Safety and Efficacy of 4-weeks Treatment of BIBW 2948 BS in Patients With Chronic Obstructive Bronchitis

NCT00726479
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive, Bronchitis, Chronic
Interventions
BIBW 2948 BS
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
40 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
8
States / cities
Birmingham, Alabama • Phoenix, Arizona • Fort Collins, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2014 · Synced Oct 16, 2026, 4:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Influenza Vaccine in Lung Transplant Patients - Seroprotection

NCT04531657
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccine
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 23, 2020 · Synced Oct 16, 2026, 4:03 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Pilot of Cohort of Households for Influenza Monitoring and Evaluation in Seattle

NCT04141930
View directory record Official record
Conditions
Influenza, Respiratory Viral Infection
Interventions
Baloxavir Marboxil
Drug
Lead sponsor
University of Washington
Other
Eligibility
3 Months and older
Enrollment
481 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 5, 2021 · Synced Oct 16, 2026, 4:03 PM EDT