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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Coughing Clear all
Completed No phase listed Observational Accepts healthy volunteers

Improving Diagnostic Standards in Dysphagia

NCT04773184
View directory record Official record
Conditions
Dysphagia
Interventions
Fiberoptic Endoscopic Evaluation of Swallowing, Videofluoroscopic Swallowing Study, Voluntary Peak Cough Flow Testing, Iowa Oral Performance Instrument, Capsaicin Challenge, Pulmonary Function Testing, Voicing Tasks
Procedure · Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 90 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 16, 2024 · Synced Sep 16, 2026, 2:18 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Database Surveillance Safety Study of PENTACEL® Vaccine

NCT00804284
View directory record Official record
Conditions
Diphtheria, Tetanus, Pertussis, Haemophilus Influenzae
Interventions
DTaP-IPV/Hib, Other DTap Vaccines
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Weeks to 24 Months · Male only
Enrollment
62,538 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2015
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Aug 18, 2015 · Synced Sep 16, 2026, 2:18 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

The Safety of Boostrix Following Routine Immunization of Pregnant Women

NCT03463577
View directory record Official record
Conditions
Whooping Cough
Interventions
Safety assessment following routine immunization with Boostrix
Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
Female only
Enrollment
65,783 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced Sep 16, 2026, 2:18 PM EDT
Recruiting Phase 4 Interventional

The Mechanism Versus PPI Trial

NCT06999577
View directory record Official record
Conditions
Laryngopharyngeal Reflux, Cough, Throat Clearing, Dysphonia, Reflux
Interventions
Omeprazole 40 MG, Laryngeal Recalibration Therapy, GERD Lifestyle Recommendations
Drug · Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 89 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
San Deigo, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2025 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Phase 4, Placebo-Controlled, Randomized Study to Evaluate the Immunogenicity and Safety of HPV and Tdap When Administered With MenACWY in Adolescents

NCT01424644
View directory record Official record
Conditions
Meningococcal Meningitis
Interventions
Placebo + Combined Tetanus, Reduced Diphtheria Toxoid, Acellular Pertussis Vaccine + Quadrivalent Human Papillomavirus Vaccine, MenACWY-CRM Conjugate Vaccine + Combined Tetanus, Reduced Diphtheria Toxoid, Acellular Pertussis Vaccine + Quadrivalent Human Papillomavirus Vaccine
Biological
Lead sponsor
Novartis
Industry
Eligibility
11 Years to 18 Years
Enrollment
801 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
17
States / cities
Birmingham, Alabama • Fremont, California • Madera, California + 14 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2014 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Not applicable Interventional Results available

Internet-Behavioral Cough Suppression Therapy

NCT05770401
View directory record Official record
Conditions
Cough, Chronic Disease
Interventions
Internet-Behavioral Cough Suppression Therapy, Sham Treatment
Behavioral
Lead sponsor
University of Montana
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Sep 16, 2026, 2:18 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating the Feasibility and Reliability of Using Handheld Nebulizers to Conduct Cough Sensitivity Testing With Citric Acid

NCT07531901
View directory record Official record
Conditions
Cough Reflex Sensitivity
Interventions
Cosmed QuarkSpiro Dosimeter-Controlled Nebulizer, DeVilbiss 45 Handheld Nebulizer
Device
Lead sponsor
University of Montana
Other
Eligibility
18 Years to 89 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Phase 2 Interventional Results available

Pilot of Zinc Acetate to Improve Chronic Cough

NCT03135522
View directory record Official record
Conditions
Cough
Interventions
Zinc Acetate 50 Mg Oral Capsule, Placebo oral capsule
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
5
States / cities
Denver, Colorado • Indianapolis, Indiana • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 19, 2021 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Early Phase 1 Interventional Results available

Assessment of Dystussia in Traumatic Brain Injury

NCT02240329
View directory record Official record
Conditions
TBI, Brain Injury
Interventions
Neuropsychological Testing and Measures of TBI severity, Respiratory measures, Capsaicin cough sensitivity testing
Behavioral · Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 60 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 27, 2015 · Synced Sep 16, 2026, 2:18 PM EDT
Recruiting Not applicable Interventional

Respiratory Strength Training in Heart Transplant Recipients

NCT06190171
View directory record Official record
Conditions
Dysphagia, Heart Transplant Recipients
Interventions
Active respiratory muscle strength training, Sham respiratory muscle strength training
Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 90 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 16, 2026, 2:18 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cough Sensitivity and Taste Preferences

NCT01399060
View directory record Official record
Conditions
Smoking
Interventions
Not listed
Lead sponsor
Monell Chemical Senses Center
Other
Eligibility
10 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 23, 2013 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigating the Effect of Daily CARDIO® Capsules Supplementation on Improved Sleep in Healthy, Urban-Dwelling Adults

NCT06768970
View directory record Official record
Conditions
Sleep, Pollution; Exposure, Cough
Interventions
CARDIO® salmon oil
Dietary Supplement
Lead sponsor
Hofseth Biocare ASA
Industry
Eligibility
18 Years to 70 Years
Enrollment
131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 9, 2025 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Phase 3 Interventional

Phase 3 Efficacy and Safety Study of Favipiravir for Treatment of Uncomplicated Influenza in Adults

NCT02008344
View directory record Official record
Conditions
Influenza
Interventions
favipiravir, placebo
Drug
Lead sponsor
MDVI, LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
1,161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
147
States / cities
Birmingham, Alabama • Huntsville, Alabama • Camp Verde, Arizona + 123 more
Source: ClinicalTrials.gov public record
Updated Nov 10, 2015 · Synced Sep 16, 2026, 2:18 PM EDT
Completed No phase listed Observational

5-Year Objective and Subjective Results of a Mid-Urethral Sling

NCT01657916
View directory record Official record
Conditions
Stress Urinary Incontinence
Interventions
Not listed
Lead sponsor
Atlantic Health System
Other
Eligibility
18 Years and older · Female only
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Morristown, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 8, 2017 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Not applicable Interventional Results available

PEEP Mask for Tracheobronchomalacia-Induced Cough

NCT04169282
View directory record Official record
Conditions
Tracheobronchomalacia
Interventions
nPEP (non-invasive positive expiratory pressure) mask
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Cough According to Stimulus Type in PD

NCT02390089
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Capsaicin vapor, fog, Videofluoroscopic swallow evaluation, Nebulizer
Drug · Other · Radiation + 1 more
Lead sponsor
University of Florida
Other
Eligibility
50 Years to 80 Years
Enrollment
158 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 14, 2019 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Immunogenicity of Adacel® and BOOSTRIX® Vaccines in Adolescents

NCT01629589
View directory record Official record
Conditions
Tetanus, Diphtheria, Pertussis, Whooping Cough
Interventions
Tetanus Toxoid, Reduced Diphtheria Toxoid and Acellular Pertussis Vaccine Adsorbed (Adacel®), Tetanus Toxoid, Reduced Diphtheria Toxoid and Acellular Pertussis Vaccine, Adsorbed (BOOSTRIX®)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
11 Years to 12 Years
Enrollment
423 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
8
States / cities
Sacramento, California • Bardstown, Kentucky • Woburn, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 1, 2016 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Not applicable Interventional

Biofeedback vs Laryngeal Control Therapy in Management of Paradoxical Vocal Fold Motion

NCT05770518
View directory record Official record
Conditions
Paradoxical Vocal Fold Motion, Vocal Cord Dysfunction
Interventions
Biofeedback, Laryngeal control therapy (LCT)
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 21, 2025 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study on the Safety and Immunogenicity of Boostrix Vaccine in Pregnant Malian Women and Their Infants

NCT03589768
View directory record Official record
Conditions
Clostridium Difficile Immunisation, Diphtheria, Diphtheria Immunisation, Pertussis, Tetanus, Tetanus Immunisation
Interventions
Tetanus and Diphtheria Toxoids Adsorbed, Tetanus toxoid, reduced diphtheria toxoid and acellular pertussis vaccine adsorbed onto aluminum hydroxide
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 39 Years · Female only
Enrollment
399 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Phase 2 Interventional Results available

Efficacy and Safety Study of Orvepitant for Chronic Cough in Patients With Idiopathic Pulmonary Fibrosis

NCT05185089
View directory record Official record
Conditions
Cough, Idiopathic Pulmonary Fibrosis
Interventions
Orvepitant Maleate, Placebo
Drug
Lead sponsor
Nerre Therapeutics Ltd.
Industry
Eligibility
40 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
16
States / cities
Los Angeles, California • San Francisco, California • Denver, Colorado + 13 more
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 16, 2026, 2:18 PM EDT
Not yet recruiting Not applicable Interventional

Optimizing Dysphagia Treatment Delivery in Acute Care: A Hybrid Efficacy Implementation Trial

NCT07736105
View directory record Official record
Conditions
Dysphagia, Critical Illness
Interventions
Expiratory muscle strength training (EMST), Standard of Care Dysphagia Treatment, Intensive Dysphagia Treatment
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 16, 2026, 2:18 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of GSK's Tdap Vaccine (Boostrix) in Adults Aged 19 to 64 Years

NCT00346073
View directory record Official record
Conditions
Acellular Pertussis, Diphtheria, Tetanus
Interventions
Boostrix™, ADACEL®
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
19 Years to 64 Years
Enrollment
2,337 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
42
States / cities
Huntsville, Alabama • Chandler, Arizona • Mesa, Arizona + 36 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2018 · Synced Sep 16, 2026, 2:18 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

TDAP Safety in Pregnant Women

NCT02209623
View directory record Official record
Conditions
Pertussis
Interventions
TDAP
Biological
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
375 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
2
States / cities
Durham, North Carolina • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 19, 2017 · Synced Sep 16, 2026, 2:18 PM EDT
Recruiting Early Phase 1 Interventional

ENDOTRACHEAL Tube LIDOCAINE

NCT07709390
View directory record Official record
Conditions
Emergency Coughing
Interventions
5% Lidocaine Ointment, Water-Based Lubricant
Drug · Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 90 Years
Enrollment
212 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 16, 2026, 2:18 PM EDT