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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Infections, Respiratory Tract Clear all
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Open Label Evaluation of H5N1 Vaccine at Vaccine Manufacturing Facilities

NCT00311649
View directory record Official record
Conditions
Influenza
Interventions
Inactivated Influenza A Vaccine A/H5N1
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
83 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Swiftwater, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 11, 2011 · Synced Jul 24, 2026, 3:02 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Lymphatic Osteopathic Manipulative Medicine to Enhance Coronavirus (COVID-19) Vaccination Efficacy

NCT05069636
View directory record Official record
Conditions
COVID-19
Interventions
Lymphatic OMM, Light Touch
Other
Lead sponsor
Rowan University
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Stratford, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 2, 2022 · Synced Jul 24, 2026, 3:02 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

H5 Adult - Chiron Study of Bird Flu Vaccine

NCT00280033
View directory record Official record
Conditions
Influenza
Interventions
Aluminum hydroxide, Inactivated Influenza A/H5N1 Vaccine (Chiron), MF-59, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
394 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
4
States / cities
Stanford, California • St Louis, Missouri • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 12, 2013 · Synced Jul 24, 2026, 3:02 AM EDT
Recruiting Phase 4 Interventional

Biologics in Chronic Rhinosinusitis With Nasal Polyposis

NCT06824649
View directory record Official record
Conditions
Chronic Sinusitis, Nasal Polyps
Interventions
Biologic Agents
Biological
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
504 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
2
States / cities
Portland, Oregon • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Jul 24, 2026, 3:02 AM EDT
Completed Phase 1 Interventional

A Trial to Assess the Safety, Tolerability and Pharmacokinetics of MDT-637 in Subjects With Intermittent, or Mild-to-Moderate Persistent, Asthma

NCT01556607
View directory record Official record
Conditions
Drug Safety
Interventions
MDT-637, Placebo
Drug
Lead sponsor
MicroDose Therapeutx, Inc
Industry
Eligibility
18 Years to 50 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Costa Mesa, California
Source: ClinicalTrials.gov public record
Updated May 21, 2012 · Synced Jul 24, 2026, 3:02 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluate Safety, Tolerability, PK of TBAJ-876 in Healthy Adults

NCT04493671
View directory record Official record
Conditions
Pulmonary Disease, Tuberculosis, Pulmonary, Tuberculosis, Multi Drug Resistant Tuberculosis, Drug Sensitive Tuberculosis, Drug-resistant Tuberculosis, Mycobacterium Tuberculosis Infection
Interventions
TBAJ-876 suspension, Placebo suspension, TBAJ-876 100 mg tablet, TBAJ-876 25 mg tablet
Drug
Lead sponsor
Global Alliance for TB Drug Development
Other
Eligibility
19 Years to 50 Years
Enrollment
137 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 3, 2025 · Synced Jul 24, 2026, 3:02 AM EDT
Recruiting Phase 2 Interventional

High vs.Standard Dose Influenza Vaccine in Pediatric Solid Organ Transplant (SOT) Recipients

NCT05947071
View directory record Official record
Conditions
Immunization; Infection, Transplantation Infection, Influenza
Interventions
Standard Dose Quadrivalent Inactivated Influenza Vaccine, High Dose Quadrivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years to 17 Years
Enrollment
312 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
8
States / cities
Stanford, California • Atlanta, Georgia • Chicago, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Jul 24, 2026, 3:02 AM EDT
Completed No phase listed Observational

Pilot Study of Allergy Immunotherapy and Prevention of Viral Respiratory Infections

NCT00405899
View directory record Official record
Conditions
Allergy, Seasonal Allergic Rhinitis, Perennial Allergic Rhinitis
Interventions
Not listed
Lead sponsor
West Penn Allegheny Health System
Other
Eligibility
6 Years to 18 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 30, 2010 · Synced Jul 24, 2026, 3:02 AM EDT
Withdrawn Phase 3 Interventional

Tocilizumab for the Treatment of Cytokine Release Syndrome in Patients With COVID-19 (SARS-CoV-2 Infection)

NCT04361552
View directory record Official record
Conditions
Cerebrovascular Accident, Chronic Obstructive Pulmonary Disease, Chronic Renal Failure, Coronary Artery Disease, Diabetes Mellitus, Malignant Neoplasm, SARS Coronavirus 2 Infection
Interventions
Best Practice, Tocilizumab
Other · Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 17, 2020 · Synced Jul 24, 2026, 3:02 AM EDT
Terminated No phase listed Observational

COVID-19 (Coronavirus Disease-2019) Psychiatric Outcomes

NCT05119400
View directory record Official record
Conditions
Covid19, Anxiety, Mood, Cognitive Impairment
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 89 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 11, 2024 · Synced Jul 24, 2026, 3:02 AM EDT
Completed No phase listed Observational

Olfactory Dysfunction of Rhinosinusitis

NCT00797004
View directory record Official record
Conditions
Rhinosinusitis
Interventions
Not listed
Lead sponsor
Greg Davis
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 28, 2012 · Synced Jul 24, 2026, 3:02 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

H7N9 Boost in Healthy Adults

NCT02586792
View directory record Official record
Conditions
Influenza
Interventions
Monovalent influenza A/H7N9 virus vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 50 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 21, 2018 · Synced Jul 24, 2026, 3:02 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Gabapentin Premedication to Reduce Postoperative Pain for Pediatric Tonsillectomy

NCT03625011
View directory record Official record
Conditions
Tonsillitis, Tonsillectomy
Interventions
Gabapentin
Drug
Lead sponsor
Children's Healthcare of Atlanta
Other
Eligibility
3 Years to 18 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 23, 2019 · Synced Jul 24, 2026, 3:02 AM EDT
Completed Phase 3 Interventional Results available

ACTIV-6: COVID-19 Study of Repurposed Medications - Arm E (Fluvoxamine 100)

NCT05894564
View directory record Official record
Conditions
Covid19
Interventions
Fluvoxamine, Placebo
Drug · Other
Lead sponsor
Susanna Naggie, MD
Other
Eligibility
30 Years and older
Enrollment
1,208 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
103
States / cities
Gilbert, Arizona • Mesa, Arizona • Peoria, Arizona + 90 more
Source: ClinicalTrials.gov public record
Updated Nov 14, 2024 · Synced Jul 24, 2026, 3:02 AM EDT
Completed Not applicable Interventional

Respiratory Decompensation and Model for the Triage of COVID-19 Patients

NCT04390516
View directory record Official record
Conditions
COVID-19, Coronavirus, Mortality, Mechanical Ventilation
Interventions
COViage
Device
Lead sponsor
Dascena
Industry
Eligibility
18 Years and older
Enrollment
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Jun 11, 2020 · Synced Jul 24, 2026, 3:02 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

PatientSpot Formerly Known as ArthritisPower

NCT03840928
View directory record Official record
Conditions
Rheumatoid Arthritis, Ankylosing Spondylitis, Fibromyalgia, Gout, Crohn Disease, Juvenile Idiopathic Arthritis, Lupus Erythematosus, Myositis, Osteoarthritis, Osteoporosis, Psoriasis, Psoriatic Arthritis, Scleroderma, Dermatomyositis, Inflammatory Bowel Diseases, Polymyositis, Axial Spondyloarthritis, Diffuse Idiopathic Skeletal Hyperostosis, Polymyalgia Rheumatica, Giant Cell Arteritis, Temporal Arteritis, Wegener, Relapsing Polychondritis, Undifferentiated Connective Tissue Disease, Spinal Cord Injuries, Alzheimer Disease, Amyotrophic Lateral Sclerosis, Ataxia, Bell Palsy, Brain Tumor, Cerebral Aneurysm, Epilepsy, Guillain-Barre Syndrome, Headache, Head Injury, Hydrocephalus, Lumbar Disc Disease, Meningitis, Multiple Sclerosis, Muscular Dystrophy, Neurocutaneous Syndromes, Parkinson Disease, Stroke, Cluster Headache, Tension-Type Headache, Chronic Obstructive Pulmonary Disease, Asthma, Lung Cancer, Cystic Fibrosis, Sleep Apnea, Eczema, Alopecia, Chronic Inflammation, Unstable Angina, Heart Attack, Heart Failure, Arrythmia, Valve Heart Disease, High Blood Pressure, Congenital Heart Disease, Peripheral Arterial Disease, Diabetes, Chronic Liver Disease, Obesity
Interventions
Not listed
Lead sponsor
Global Healthy Living Foundation
Other
Eligibility
19 Years and older
Enrollment
40,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2025
U.S. locations
1
States / cities
Upper Nyack, New York
Source: ClinicalTrials.gov public record
Updated Dec 12, 2023 · Synced Jul 24, 2026, 3:02 AM EDT
Completed No phase listed Observational Results available

The Natural History of Viral Upper Respiratory Infections in Children Aged 6 to Less Than 14 Years

NCT00405509
View directory record Official record
Conditions
Upper Respiratory Infection, Common Cold
Interventions
Not listed
Lead sponsor
West Penn Allegheny Health System
Other
Eligibility
6 Years to 13 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 18, 2016 · Synced Jul 24, 2026, 3:02 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Have Physical Therapists Attitudes and Beliefs Towards Vital Assessment Changed Following the COVID-19 Pandemic?

NCT05908045
View directory record Official record
Conditions
Vital Signs
Interventions
KAP Survey
Other
Lead sponsor
Youngstown State University
Other
Eligibility
23 Years to 100 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Youngstown, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 23, 2024 · Synced Jul 24, 2026, 3:02 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Study Evaluating MDX2301 in Healthy Adults and Adults at Higher Risk for Severe COVID-19.

NCT07445971
View directory record Official record
Conditions
COVID -19, COVID-19 (Prevention)
Interventions
MDX2301, Normal Saline
Biological
Lead sponsor
ModeX Therapeutics, An OPKO Health Company
Industry
Eligibility
18 Years to 64 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
2
States / cities
Las Vegas, Nevada • Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Jul 24, 2026, 3:02 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Virtual Prospective Study Exploring Activity Trackers and COVID-19 Infections

NCT04623138
View directory record Official record
Conditions
Covid19, SARS-CoV Infection
Interventions
Not listed
Lead sponsor
Evidation Health
Industry
Eligibility
18 Years and older
Enrollment
847 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
San Mateo, California
Source: ClinicalTrials.gov public record
Updated Jan 10, 2022 · Synced Jul 24, 2026, 3:02 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Determine the Safety and Efficacy of the RSV F Vaccine to Protect Infants Via Maternal Immunization

NCT02624947
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
RSV F vaccine with adjuvant, Formulation buffer
Biological
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
4,636 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
49
States / cities
Birmingham, Alabama • Cullman, Alabama • Fort Defiance, Arizona + 43 more
Source: ClinicalTrials.gov public record
Updated May 5, 2025 · Synced Jul 24, 2026, 3:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Pneumococcal Vaccination Rates in an Ambulatory Pre-surgical Testing Setting

NCT01787838
View directory record Official record
Conditions
Community Acquired Pneumonia
Interventions
Focused Health Education
Other
Lead sponsor
Carilion Clinic
Other
Eligibility
18 Years to 110 Years
Enrollment
2,509 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 18, 2017 · Synced Jul 24, 2026, 3:02 AM EDT
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 24, 2026, 3:02 AM EDT