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ClinicalTrials.gov public records Last synced Oct 15, 2026, 8:28 AM EDT

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Showing 625–648 of 3,927 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Respiratory Tract Infections (RTI) Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Novartis H1N1 Vaccine in Pregnant Women

NCT00992719
View directory record Official record
Conditions
Influenza
Interventions
Inactivated H1N1 Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 39 Years · Female only
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
6
States / cities
Baltimore, Maryland • St Louis, Missouri • Durham, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2013 · Synced Oct 15, 2026, 8:28 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Vaccine Hesitancy in Black/African Americans With Rheumatic Diseases

NCT05822219
View directory record Official record
Conditions
Rheumatic Diseases, COVID-19 Vaccine, COVID-19, SLE
Interventions
COVID-19 vaccine and booster training, and importance
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 29, 2026 · Synced Oct 15, 2026, 8:28 AM 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 15, 2026, 8:28 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Surveillance Study to Assess the Safety of Flublok Quadrivalent (Influenza Vaccine) in Pregnant Women and Their Offspring

NCT04460781
View directory record Official record
Conditions
Influenza
Interventions
Flublok Quadrivalent influenza vaccine RIV4, Standard-dose quadrivalent inactivated influenza vaccine SD-IIV4
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
Up to 64 Years
Enrollment
96,175 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated May 24, 2022 · Synced Oct 15, 2026, 8:28 AM EDT
Recruiting No phase listed Observational

Assessment of the Psychosocial Impact of the COVID-19 Pandemic on the MD Anderson Cancer Center Workforce

NCT04491292
View directory record Official record
Conditions
COVID-19 Infection
Interventions
Questionnaire Administration
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Phase 2 Interventional Results available

Study of M5049 in Participants With COVID-19 Pneumonia (ANEMONE)

NCT04448756
View directory record Official record
Conditions
Coronavirus Disease 2019
Interventions
M5049, Placebo
Drug
Lead sponsor
EMD Serono Research & Development Institute, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
149 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
5
States / cities
Los Angeles, California • San Diego, California • Detroit, Michigan + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 6, 2022 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Intranasal Heparin Tolerability Study

NCT04490239
View directory record Official record
Conditions
Covid19
Interventions
Intranasal heparin sodium (porcine)
Drug
Lead sponsor
Joshua Sharp
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
University, Mississippi
Source: ClinicalTrials.gov public record
Updated Apr 30, 2021 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Different Formulations of an A/H1N1 Pandemic Vaccine in Healthy Children Aged 6 Months to 9 Years

NCT00952419
View directory record Official record
Conditions
Influenza, Swine-origin A/H1N1 Influenza
Interventions
Monovalent Subvirion A/H1N1 Influenza vaccine, Normal saline solution (placebo)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 9 Years
Enrollment
474 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
20
States / cities
Miami Beach, Florida • Marietta, Georgia • Woodstock, Georgia + 16 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Oct 15, 2026, 8:28 AM EDT
Completed No phase listed Observational

LMA Cuff Pressure and LMA-induced Complications

NCT01385969
View directory record Official record
Conditions
Sore Throat, Dysphagia, Dysphonia
Interventions
Standard inflation of LMA cuff, Pressure check with syringe recoil, Pressure check by pressure transducer
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 99 Years
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
2
States / cities
Gainesville, Florida • Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 6, 2015 · Synced Oct 15, 2026, 8:28 AM EDT
Completed No phase listed Observational

Validation of the Facial and Cephalic Pain Inventory

NCT01001039
View directory record Official record
Conditions
Sinusitis
Interventions
Not listed
Lead sponsor
Greg Davis
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 29, 2012 · Synced Oct 15, 2026, 8:28 AM EDT
Completed No phase listed Observational

Idylla IFV-RSV Panel Clinical Testing

NCT02786381
View directory record Official record
Conditions
Respiratory Tract Infections, Influenza, Human, Respiratory Syncytial Virus Infections
Interventions
Not listed
Lead sponsor
Janssen Pharmaceutica N.V., Belgium
Industry
Eligibility
Not listed
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Pensacola, Florida
Source: ClinicalTrials.gov public record
Updated Nov 22, 2016 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Not applicable Interventional Results available

Leveraging CHWs to Improve COVID-19 Testing and Mitigation Among CJIs Accessing a Corrections-focused CBO

NCT04878328
View directory record Official record
Conditions
Covid19
Interventions
Onsite Point-of-care
Behavioral
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
2
States / cities
Long Island City, New York • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Fluzone® Quadrivalent Vaccine Administered to Healthy Children

NCT02915302
View directory record Official record
Conditions
Influenza
Interventions
Fluzone Quadrivalent vaccine, No Preservative
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 35 Months
Enrollment
1,950 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
35
States / cities
Birmingham, Alabama • Harrisburg, Arkansas • Downey, California + 28 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2022 · Synced Oct 15, 2026, 8:28 AM EDT
Completed No phase listed Observational

The Role of Surgery in Patients With Coronavirus Disease - 19 (COVID-19) Related Thoracic Complications

NCT05204537
View directory record Official record
Conditions
Surgical Complication, COVID-19, Pneumothorax, Empyema, Pleural, Abscess, Hemothorax, Thoracic
Interventions
Lung parenchyma resection, Empyemectomy
Procedure
Lead sponsor
University of Milano Bicocca
Other
Eligibility
18 Years and older
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 30, 2023 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study to Evaluate Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Quadrivalent Influenza Vaccine GSK2282512A When Administered to Children From 6 to 35 Months of Age

NCT01974895
View directory record Official record
Conditions
Influenza
Interventions
FluLaval® Quadrivalent, Fluzone®
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 35 Months
Enrollment
316 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
12
States / cities
Sacramento, California • West Covina, California • Altamonte Springs, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 7, 2018 · Synced Oct 15, 2026, 8:28 AM EDT
Completed No phase listed Observational

Prevalence and Pathogenesis of Lung Disease in a Large HIV Cohort-coordinating Center

NCT00870857
View directory record Official record
Conditions
HIV Infections, Emphysema, Chronic Obstructive Pulmonary Disease, Pneumocystis
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
407 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
2
States / cities
Los Angeles, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mitigating Mental and Social Health Outcomes of COVID-19: a Counseling Approach

NCT06142292
View directory record Official record
Conditions
Social Determinants of Health, Mental Health Issue, COVID-19
Interventions
Individual counseling, Group counseling
Behavioral
Lead sponsor
Idaho State University
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Meridian, Idaho
Source: ClinicalTrials.gov public record
Updated Feb 25, 2025 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Annual Study for Collection of Serum Samples in Children and Older Adults Receiving the 2020-2021 Formulations of Fluzone Quadrivalent Vaccine and Fluzone High-Dose Quadrivalent Vaccine, Respectively

NCT04551677
View directory record Official record
Conditions
Influenza Immunization, Healthy Volunteers
Interventions
Fluzone Quadrivalent vaccine, No Preservative (0.5-mL dose), 2020-2021 formulation, Fluzone High-Dose Quadrivalent vaccine (0.7-mL dose), 2020-2021 formulation
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 84 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
2
States / cities
Bardstown, Kentucky • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 12, 2025 · Synced Oct 15, 2026, 8:28 AM EDT
Completed No phase listed Observational

COVID-19 Breakthrough Infection in Fully Vaccinated People and in People Who Received a Booster Dose

NCT05392075
View directory record Official record
Conditions
COVID-19 Pneumonia, COVID-19
Interventions
Pfizer COVID-19 mRNA vaccine, Moderna COVID-19 mRNA vaccine
Biological
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years to 100 Years
Enrollment
100 participants
Timeline
2023
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Oct 15, 2026, 8:28 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Breath Analysis Based Disease Biomarkers

NCT04341012
View directory record Official record
Conditions
Liver Diseases, Liver Cancer, COVID19
Interventions
Collection of breath sample
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Not applicable Interventional

Enhancing Electronic Health Systems to Decrease the Burden of Colon Cancer, Lung Cancer, Obesity, Vaccine-Preventable Illness, and LivER Cancer

NCT04540081
View directory record Official record
Conditions
Colon Cancer, Lung Cancer, Tobacco Use Cessation, Obesity, Pneumonia, Bacterial, Shingles, Hepatitis C
Interventions
Epic Healthy Planet Population Health Module
Other
Lead sponsor
University of California, Davis
Other
Eligibility
50 Years to 80 Years
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 27, 2023 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Proteomic Profiling for Influenza Vaccination - FluMist

NCT00385281
View directory record Official record
Conditions
Influenza
Interventions
FluMist
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
21 Years to 49 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 27, 2010 · Synced Oct 15, 2026, 8:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Text-based Interventions to Promote COVID-19 Vaccinations

NCT04800965
View directory record Official record
Conditions
Covid19, Vaccines
Interventions
Patient MyChart Scheduling Link, Patient Educational Video, Enhanced Follow through Message
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
200,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Westwood, Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 13, 2022 · Synced Oct 15, 2026, 8:28 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Trial of Hydroxychloroquine In Covid-19 Kinetics

NCT04353271
View directory record Official record
Conditions
Covid 19, Corona Virus Infection
Interventions
Hydroxychloroquine, Placebo
Drug · Other
Lead sponsor
University of South Alabama
Other
Eligibility
19 Years to 85 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Mobile, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 3, 2022 · Synced Oct 15, 2026, 8:28 AM EDT