| Not Yet Recruiting | Usefulness and Feasibility of Ultrasound in Office Laryngology Procedures NCT06579989 | Weill Medical College of Cornell University | N/A |
| Not Yet Recruiting | A 2x2 Factorial, Randomized, Open-label Trial to Evaluate Neuromodulators and Cough Control Therapy in Patient NCT07288528 | McMaster University | Phase 4 |
| Not Yet Recruiting | Focused Echocardiography for Primary Care Physicians NCT07427303 | University Hospital, Caen | N/A |
| Not Yet Recruiting | Evaluation of Treatments for Dry or Productive Cough NCT07330856 | University Hospital, Clermont-Ferrand | Phase 4 |
| Recruiting | Efficacy and Safety of Rengalin in the Treatment of ARVI Cough in Children NCT07171099 | Materia Medica Holding | Phase 3 |
| Not Yet Recruiting | Phase III Trial of Susu Zhike Granules in Children With Cold-cough Syndrome for Acute Cough Treatment NCT06773117 | Tasly Pharmaceutical Group Co., Ltd | Phase 3 |
| Not Yet Recruiting | Objective Evaluation of Cough Effort in Tracheotomized Patients (LOST Study) NCT07061561 | Centre Hospitalier de Saint-Denis | N/A |
| Completed | The Efficacy and Safety of Reconyl in Acute Cough Treatment NCT07420491 | Dexa Medica Group | Phase 3 |
| Recruiting | The Mechanism Versus PPI Trial NCT06999577 | University of California, San Diego | Phase 4 |
| Recruiting | Dexmedetomidine, Magnesium Sulphate and Lidocaine for Cough Suppression After General Anesthesia NCT06979141 | Al-Azhar University | Phase 3 |
| Recruiting | Validation of a Questionnaire to Measure Cough Severity NCT06669897 | Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau | — |
| Recruiting | Development of a Cough Control Questionnaire (CCQ) NCT06918756 | King's College Hospital NHS Trust | — |
| Recruiting | Cough and Hemorrhoids NCT06878209 | Muğla Sıtkı Koçman University | — |
| Recruiting | Combined Acupressure Effects on Post-Thoracotomy Pain and Lung Volume NCT07411417 | Özgül Aydemir | N/A |
| Completed | A Clinical Evidence Study Evaluating Quality of Life Parameters Following Treatment With Robitussin NCT06716645 | HALEON | Phase 4 |
| Completed | Safety and Efficacy Reconyl for Cough With/Without Sore Throat NCT06510257 | Dexa Medica Group | Phase 2 |
| Completed | A Study to Investigate the Effect of Food on Camlipixant Concentrations in Healthy Participants NCT06497517 | Bellus Health Inc. - a GSK company | Phase 1 |
| Completed | Investigating the Effect of Daily CARDIO® Capsules Supplementation on Improved Sleep in Healthy, Urban-Dwellin NCT06768970 | Hofseth Biocare ASA | N/A |
| Active Not Recruiting | Efficacy and Safety of ME-015 (Suplatast Tosilate) in Cough Related to Idiopathic Pulmonary Fibrosis (COSMIC-I NCT05983471 | Melius Pharma AB | Phase 2 |
| Terminated | The Performance and Safety of Petit Drill in the French Paediatric Population: a Post-market Clinical Follow-u NCT06688370 | Pierre Fabre Medicament | — |
| Not Yet Recruiting | A Study of HS-10383 in Chinese Adult Subjects With Refractory or Unexplained Chronic Cough (RUCC) NCT06246565 | Jiangsu Hansoh Pharmaceutical Co., Ltd. | Phase 2 |
| Active Not Recruiting | Evaluation of a Comprehensive School Health Programme in Zambia NCT06560853 | London School of Economics and Political Science | N/A |
| Unknown | An Investigation of the Cervical Region Biomechanics in Patients With Chronic Obstructive Pulmonary Disease NCT06246370 | Hacettepe University | — |
| Completed | A Study of Camlipixant in Male and Female Healthy Participants and Participants With Hepatic Impairment Aged 1 NCT06222892 | Bellus Health Inc. - a GSK company | Phase 1 |
| Recruiting | Validation of the C-mo System - Cough Monitoring NCT05989698 | Cough Monitoring Medical Solutions | N/A |
| Unknown | Does the Coaching Function Improve the Learning of Mechanical In-exsufflation (MI-E) in Paediatric Subjects? NCT06190431 | Cliniques universitaires Saint-Luc- Université Catholique de Louvain | N/A |
| Unknown | Innovative Endotracheal Tube Design Reduces Postoperative Laryngeal Injury NCT06108271 | University Hospital of the Nuestra Señora de Candelaria | N/A |
| Completed | Evaluation of the Potential Drug-drug Interactions Between Gemfibrozil or Dabigatran Etexilate and Camlipixant NCT05959447 | Bellus Health Inc. - a GSK company | Phase 1 |
| Completed | Comparison of Jacobson Relaxation Technique and Pranayama Technique in Patients With COPD NCT06463288 | Riphah International University | N/A |
| Completed | Internet-Behavioral Cough Suppression Therapy NCT05770401 | University of Montana | N/A |
| Completed | Effect of Over-the-counter NSAIDS on Cough Reflex Sensitivity in Patients with Upper Respiratory Tract Infecti NCT05955885 | University of Melbourne | EARLY_Phase 1 |
| Unknown | A Clinical Validation Study to Evaluate the Diagnostic Accuracy of a Cough-based Auxiliary Diagnosis Algorithm NCT06082791 | Ruijin Hospital | — |
| Completed | Azithromycin and Oesophageal Function in Respiratory Disease NCT05469555 | Hull University Teaching Hospitals NHS Trust | — |
| Completed | Comparison of the Coughing Frequency of Remimazolam Total Intravenous Anesthesia Versus Inhalational Anesthesi NCT06275425 | Yonsei University | N/A |
| Completed | Evaluation of the Effect of Rifampin and Rabeprazole on the Pharmacokinetics of Camlipixant NCT05899829 | Bellus Health Inc. - a GSK company | Phase 1 |
| Completed | QR052107B Tablets in Patients With Subacute Cough of Phase Ⅱ Study NCT06920836 | Wuhan Createrna Science and Technology Co., Ltd | Phase 2 |
| Unknown | A Multiple-Dose Escalation Study to Evaluate the Safety, Tolerability and Pharmacokinetic of HS-10383 NCT06092983 | Jiangsu Hansoh Pharmaceutical Co., Ltd. | Phase 1 |
| Completed | Biomarkers for Predicting the Response to Inhaled Corticosteroid in Patients With Chronic Cough. NCT05888350 | The First Affiliated Hospital of Guangzhou Medical University | N/A |
| Unknown | Clinical Validation of the Hyfe Cough Monitoring System NCT05723159 | Hyfe Inc | — |
| Completed | Characteristics of Postinfectious Cough NCT06951321 | Kefang Lai | — |
| Unknown | ATP and P2X3 Receptor in Chronic Cough NCT05713019 | Imperial College London | N/A |
| Completed | Bolus vs. Continuous IV Lidocaine Against Post-Extubation Cough in Post-Thyroidectomy Patients NCT06040034 | Universitas Padjadjaran | Phase 2 |
| Recruiting | Prospective Multicentre Study on Symptoms in First-onset Bronchial Asthma in Children and Adolescents NCT06201494 | Charles University, Czech Republic | — |
| Active Not Recruiting | A 24-Week Study of the Efficacy and Safety of BLU-5937 in Adults With Refractory Chronic Cough NCT05600777 | Bellus Health Inc. - a GSK company | Phase 3 |
| Unknown | High Flow Nasal Oxygenation vs Endotracheal Intubation on Recovery Profiles in Laryngeal Microsurgery NCT05559502 | Ajou University School of Medicine | N/A |
| Unknown | Efficacy and Safety of Zihua Wenfei Granules in Treatment of Postinfectious Cough (Wind-cold Invading Lungs Sy NCT05764668 | DoCare Pharmaceutial Technology Co.,Ltd | Phase 3 |
| Active Not Recruiting | A 52-Week Study of the Efficacy and Safety of BLU-5937 in Adults With Refractory Chronic Cough NCT05599191 | Bellus Health Inc. - a GSK company | Phase 3 |
| Completed | Assessment of the Pharmacokinetics of BLU-5937 Extended Release Prototypes and a BLU-5937 Immediate Release Re NCT05570539 | Bellus Health Inc. - a GSK company | Phase 1 |
| Withdrawn | Slow-Stream Expiratory Muscle Strength Training for Veterans With Dysphagia Living in Long-term Care NCT04064333 | Sunnybrook Health Sciences Centre | N/A |
| Completed | Stellate Ganglion Block to Treat Long COVID 19 Case Series NCT05812209 | Metamorphosis LTD | — |
| Completed | Efficacy and Safety Study of Orvepitant for Chronic Cough in Patients With Idiopathic Pulmonary Fibrosis NCT05185089 | Nerre Therapeutics Ltd. | Phase 2 |
| Unknown | Efficacy and Safety of Perioperative Use of Breztri Aerosphere to Relieve Cough After Lobectomy NCT05472350 | Jianxing He | N/A |
| Completed | Alleviation of Common Cold Symptoms NCT06106880 | Applied Biological Laboratories Inc | Phase 1 |
| Completed | Cough Monitoring in COPD NCT07098793 | Hull University Teaching Hospitals NHS Trust | — |
| Completed | Kesuting Syrup in the Treatment of Corona Virus Disease 2019 (COVID-19) NCT05366231 | Guizhou Bailing Group Pharmaceutical Co Ltd | Phase 4 |
| Unknown | The Effect of Cold Vapor on Intubation-Related Symptoms and Comfort in the Early Postoperative Period NCT05317156 | Istanbul Medeniyet University | N/A |
| Recruiting | Sensory-Mechanical Responses to Eucapneic Voluntary Hyperventilation and Mannitol NCT03105843 | Dr. Diane Lougheed | Phase 4 |
| Unknown | First-in-Human Study to Investigate the Safety and Tolerability and Pharmacokinetics of HS-10383 NCT05429723 | Jiangsu Hansoh Pharmaceutical Co., Ltd. | Phase 1 |
| Completed | Evaluation of Treatment With Viusid in Post-COVID-19 Syndrome NCT06437210 | Catalysis SL | N/A |
| Unknown | Effect of Magnesium on Remifentanil Induced Cough NCT05237791 | Seoul National University Bundang Hospital | Phase 4 |
| Completed | Reference Ranges for the Cough Responsiveness to Inhaled Mannitol NCT05034367 | Kuopio University Hospital | N/A |
| Recruiting | Office-Based Superior Laryngeal Nerve Block for Treatment of Neurogenic Cough NCT04642352 | University of Alabama at Birmingham | — |
| Completed | Chronic Cough and CANVAS (Cerebellar Ataxia With Neuropathy and Bilateral Vestibular Areflexia Syndrome) NCT04703595 | Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau | — |
| Unknown | Ablation of Esophageal Inlet Patches in Patients Referred for Bravo pH-Testing NCT05131932 | Assaf-Harofeh Medical Center | N/A |
| Completed | The Effect of Virtual Reality on Self-Efficacy and Quality of Life in COPD Patients NCT07001683 | Emrah Ay | N/A |
| Completed | Comparing the Efficacy Between Lignocaine Given Via MADgic Atomizer and Lignocaine Pump Spray NCT06213116 | Universiti Sains Malaysia | N/A |
| Completed | Clinical Response of Syrup Hydryllin® in Pakistani Subjects With Cough in Routine Practice NCT05129761 | The Searle Company Limited Pakistan | — |
| Completed | Effects of Second-generation Antihistamine Bepotastine on Cough Outcomes in Cough Patients With Allergic Rhini NCT04877678 | Asan Medical Center | Phase 4 |
| Unknown | AI Evaluation of COVID-19 Sounds (AI-EChOS) NCT05115097 | IRCCS San Raffaele | — |
| Completed | Acoustic Cough Monitoring for the Management of Patients With Known Respiratory Disease NCT05042063 | Clinica Universidad de Navarra, Universidad de Navarra | — |
| Recruiting | Stimulation of the Larynx to Treat Unexplained Chronic Cough NCT05273190 | University of Minnesota | N/A |
| Unknown | Vagus Nerve Preservation and Chronic Cough in Non-small Cell Lung Cancer Surgery NCT04923412 | Seoul National University Bundang Hospital | N/A |
| Completed | Radiofrequency in Patients Post Covid 19 With Respiratory Sequelae. NCT07184372 | Clinica Gema Leon | N/A |
| Withdrawn | COVID-19 Epidemic Response Study NCT04357496 | CENTOGENE GmbH Rostock | — |
| Completed | The Effects of Whole-body Exercise to Improve Swallowing Function in Older Adults With Dementia NCT04362228 | McMaster University | N/A |
| Completed | Cough Desensitization Therapy: Pilot 2 NCT05226299 | University of Montana | Phase 1 |
| Completed | Study of Hesperidin Therapy on COVID-19 Symptoms (HESPERIDIN) NCT04715932 | Montreal Heart Institute | Phase 2 |
| Unknown | Randomized Placebo-controlled Analysis of Superior Laryngeal Nerve Block for Neurogenic Cough NCT04468542 | University of South Florida | Phase 3 |
| Completed | MCT and Capsaicin Provocation Challenge in Diagnosis of Chronic Cough NCT03363698 | Medical University of Warsaw | — |
| Unknown | Effects of Intraoperative Vagal Block on Reducing the Postoperative Cough After Thoracic Surgery NCT04672694 | Severance Hospital | N/A |
| Completed | Effect of Lung Volume Recruitment Technique After Extubation NCT05128552 | Cairo University | N/A |
| Completed | The Effects of Salbutamol on Mannitol Induced Cough Responses in Healthy Controls NCT04565847 | McMaster University | Phase 2 |
| Completed | Digital Acoustic Surveillance for Early Detection of Respiratory Disease Outbreaks NCT04762693 | Clinica Universidad de Navarra, Universidad de Navarra | — |
| Active Not Recruiting | Work of Breathing Assessment in Triage Scale NCT05479929 | CHRISTUS Health | — |
| Completed | Implementation of a Minor Ailment Service in Community Pharmacy Practice NCT05247333 | Universidad de Granada | N/A |
| Completed | Efficacy and Safety of Susu Zhike Granules for Treating Acute Cough Due to Common Cold With Cold-cough Syndrom NCT04457011 | Tasly Pharmaceutical Group Co., Ltd | Phase 2 |
| Recruiting | A Non-pharmacological Cough Control Therapy NCT04767074 | West Park Healthcare Centre | N/A |
| Completed | Effect of Bronchial Artery Protection on Cough After Thoracoscopic Lobectomy NCT04651686 | The First Affiliated Hospital of Soochow University | N/A |
| Completed | Efficacy of SLN Block for Chronic Cough NCT04421092 | Medical University of South Carolina | Phase 3 |
| Unknown | Extubation in Pediatric Patients: Proactive or Passive? NCT04432701 | Eye & ENT Hospital of Fudan University | N/A |
| Unknown | The Effect of Lidocaine on Smooth Emergence With Double Lumen Tube NCT04455711 | Ajou University School of Medicine | N/A |
| Completed | Study to Gather Information on the Influence of BAY1817080 on the Electrical Activity of the Heart Recorded by NCT04423744 | Bayer | Phase 1 |
| Completed | BNO 1030 Extract (Imupret) in the Treatment of Mild Forms of COVID-19 NCT04797936 | Ivano-Frankivsk National Medical University | Phase 4 |
| Completed | Knowledge, Attitude and Practice of Dental Students About COVID-19 NCT04449081 | Melaka Manipal Medical College | — |
| Completed | Impact of Swab Site and Sample Collector on Testing Sensitivity for COVID-19 Virus in Symptomatic Individuals NCT04321369 | UnitedHealth Group | — |
| Completed | Effectiveness and Tolerability of Ectoin® Mouth and Throat Spray Althaea Honey (ERS09) NCT04203810 | Bitop AG | N/A |
| Unknown | Prevalence and Main Features of Chronic Refractory Cough. NCT04078542 | Campus Bio-Medico University | — |
| Unknown | To Explore the Related Factors of Cough After Thoracoscopic Pneumonectomy NCT04204148 | The First Affiliated Hospital of Soochow University | — |
| Unknown | Effectiveness of Improving Diagnostic and Communication Skills on Antibiotic Prescribing Appropriateness in Ac NCT03931577 | Fundacio d'Investigacio en Atencio Primaria Jordi Gol i Gurina | N/A |
| Completed | Improving Safety of Diagnosis and Therapy in the Inpatient Setting NCT04393909 | Brigham and Women's Hospital | N/A |
| Unknown | Evaluation of the Three-Seeds Mixture Treatment in Chronic Obstructive Pulmonary Disease Patients NCT03926884 | Veterans Affairs Medical Center, Miami | N/A |
| Active Not Recruiting | Influence on Cough and Airway Symptoms by Oral Capsaicin NCT04125563 | Vastra Gotaland Region | Phase 2 |
| Completed | Accuracy of Ultra-Low-Dose-CT of the Chest Compared to Plain Film in an Unfiltered Emergency Department Patien NCT03922516 | Medical University of Vienna | N/A |
| Completed | Cough Desensitization Therapy for Cough Hypersensitivity Syndrome NCT04256733 | University of Montana | EARLY_Phase 1 |
| Completed | Functional Magnetic Resonance Imaging of ATP Cough in Chronic Cough Patients NCT03722849 | Stuart Mazzone | N/A |
| Unknown | Does Precise Delivery of Remifentanil Decrease Coughing at Emergence From Anesthesia NCT03783676 | University of Vermont Medical Center | Phase 4 |
| Completed | Efficacy, Safety and Palatability of the Syrup "KalobaTuss® Children" for the Treatment of Cough in Children NCT04073251 | Azienda Ospedaliera Universitaria Policlinico "G. Martino" | N/A |
| Completed | Mannitol-Induced Cough Challenge in Healthy Controls and Subjects With Mild Allergic Asthma NCT03620422 | McMaster University | N/A |
| Unknown | A Study of Benzonatate Soft Capsule in Chinese Healthy Subjects NCT03922373 | CSPC ZhongQi Pharmaceutical Technology Co., Ltd. | Phase 1 |
| Completed | The Effect of Dexmedetomidine for Emergence Cough NCT03622502 | Ajou University School of Medicine | N/A |
| Completed | BLU-5937: First-in-Human, Single and Multiple Doses Escalation, Safety, Tolerability, Pharmacokinetics and Foo NCT03638180 | Bellus Health Inc. - a GSK company | Phase 1 |
| Completed | Repeat Doses of BAY1902607 in Healthy Males and Proof of Concept in Chronic Cough Patients NCT03535168 | Bayer | Phase 1 / Phase 2 |
| Terminated | A Study to Assess the Effectiveness and Side Effects of GSK2798745 in Participants With Chronic Cough NCT03372603 | GlaxoSmithKline | Phase 1 / Phase 2 |
| Completed | Digital Online Consultations - Effects on Antibiotic Prescribing and Health Care Utilization in Primary Care NCT03474887 | Region Skane | — |
| Unknown | A Study on the Efficacy and Safety of Benzonatate Soft Capsules for Improving Adult Cough Symptoms NCT03722914 | CSPC ZhongQi Pharmaceutical Technology Co., Ltd. | Phase 3 |
| Unknown | Intravenous Lidocaine to Supress of Cough Reflex During Anesthesia Emergence NCT03805282 | Brasilia University Hospital | Phase 3 |
| Completed | A Study of the Effect of 20 mg Ambroxol Hydrochloride on Acute Cough. NCT03415269 | Hull University Teaching Hospitals NHS Trust | Phase 2 |
| Completed | Pilot of Zinc Acetate to Improve Chronic Cough NCT03135522 | Johns Hopkins University | Phase 2 |
| Unknown | A Prospective Trial of Behavioral Therapy for Chronic Cough NCT03235466 | University of California, San Diego | N/A |
| Unknown | Comparison of a Protective Cough Syrup Against Placebo on Night Cough in Children 1-5 Years Coughing Since 1- NCT03218696 | Clalit Health Services | N/A |
| Unknown | Bronchoscopy Anesthesia and Neuropsychological Assessment in Children (BANACH) Study NCT03359044 | Second Affiliated Hospital of Wenzhou Medical University | — |
| Completed | Mechanical Cough Augmentation in Children With NMD NCT03831568 | Oslo University Hospital | — |
| Completed | Smartphone Enabled Detection of Nocturnal Cough Rate and Sleep Quality as a Prognostic Marker for Asthma Contr NCT03635710 | Cantonal Hospital of St. Gallen | — |
| Completed | Repeat Doses of BAY 1817080 in Healthy Males & Proof of Concept in Chronic Cough Patients NCT03310645 | Bayer | Phase 1 / Phase 2 |
| Completed | A Methodology Trial Using the VR647 Inhalation System in Pediatric Subjects Who Have Previously Received Inhal NCT04011709 | Vectura Limited | EARLY_Phase 1 |
| Completed | A Cross-sectional Study to Measure Cough in Severe Asthma NCT03999203 | Queen's University, Belfast | N/A |
| Withdrawn | The Efficacy of Capsaicin Sensitivity Testing in Patients With Irritable Larynx Syndrome NCT02065128 | Unity Health Toronto | — |
| Recruiting | Swiss Paediatric Airway Cohort NCT03505216 | University of Bern | — |
| Unknown | Audio Technology To Detect Lung Cancer Earlier NCT03566862 | NHS Greater Glasgow and Clyde | — |
| Completed | Promoting Safe Use of Children's Cough/Cold Medicines NCT03126851 | NYU Langone Health | N/A |
| Completed | PEACe: Ivy, Thyme and Cisti Extract (Phytus) Efficacy in Acute Cough NCT02981147 | PharmEvo Pvt Ltd | Phase 4 |
| Unknown | Acoustic Analytic Apps for Smart Telehealth Screening - Creating a Big Data NCT03169699 | KK Women's and Children's Hospital | — |
| Completed | Clinical Trial of Efficacy and Safety of Levopront® 30 mg/5 ml in Patients With Dry Cough NCT03837938 | Dompé Farmaceutici S.p.A | Phase 3 |
| Completed | Asili Evaluation in the Democratic Republic of Congo NCT03536286 | Stanford University | N/A |
| Withdrawn | Effect of Cyclodextrin on Sensory Nerve Activity: A Novel Anti-tussive Therapy NCT01960621 | Imperial College London | Phase 4 |
| Terminated | Dextromethorphan Pediatric Acute Cough Study NCT02651116 | Pfizer | Phase 4 |
| Completed | Esophageal Motility in Reflux Induced Cough NCT02492126 | Mayo Clinic | — |
| Completed | Speech Therapy in the Management of Chronic Cough NCT03457610 | Medical University of Warsaw | N/A |
| Completed | The Utility of feNO in the Differential Diagnosis of Chronic Cough NCT02479074 | Hull University Teaching Hospitals NHS Trust | Phase 4 |
| Completed | Efficacy & Tolerability of a Specific Plantain,Thyme and Honey Cough Syrup vs Placebo in Child Cough Due to Co NCT02486835 | Clalit Health Services | N/A |
| Completed | Treatment of Respiratory Tract Infection and/or Acute Bronchitis With Ectoin Inhalation Solution NCT02632851 | Bitop AG | — |
| Unknown | Assessment of Voluntary and Reflex Cough in Patients With ALS NCT02495571 | IRCCS San Camillo, Venezia, Italy | N/A |
| Unknown | Efficacy of Pregabalin on Chronic Cough NCT02482818 | Ottawa Hospital Research Institute | Phase 1 / Phase 2 |
| Completed | A Study of Gefapixant (AF-219/MK-7264) in Participants With Idiopathic Pulmonary Fibrosis (IPF) With Persisten NCT02502097 | Afferent Pharmaceuticals, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) | Phase 2 |
| Terminated | Transpulmin Suppository and Guaiacol Compared to Transpulmin Syrup in Pediatric Participants With Productive C NCT02581397 | Ache Laboratorios Farmaceuticos S.A. | Phase 3 |
| Completed | Stimulation With Wire Leads to Restore Cough NCT01659541 | MetroHealth Medical Center | N/A |
| Unknown | Effect of Oral Procaterol on Postinfectious Persistent Cough NCT02349919 | Mahidol University | N/A |
| Unknown | A Study on the Mechanism of Cough Hypersensitivity NCT02591550 | Kefang Lai | — |
| Completed | Spirulina Supplementation and Infant Growth, Morbidity and Motor Development NCT03523182 | Programme Against Malnutrition | N/A |
| Completed | An Investigation Into the Mechanism of Inhalation Cough Challenge NCT02039999 | Hull University Teaching Hospitals NHS Trust | N/A |
| Completed | Codeine Phosphate/Guaifenesin ER Tablet 30 mg/600 mg Steady State Clinical Study NCT02572375 | Nexgen Pharma, Inc | Phase 1 |
| Completed | Respiratory Kinematics of Cough in Healthy Older Adults and Parkinson's Disease NCT02183519 | University of Florida | Phase 1 / Phase 2 |
| Terminated | Chest Ultrasound of ER Patients With Cough or SOB NCT02269761 | University of Washington | — |
| Completed | Azithromycin in Idiopathic Pulmonary Fibrosis NCT02173145 | Insel Gruppe AG, University Hospital Bern | N/A |
| Completed | Validation of Peptest™ for the Detection of Reflux in Cough NCT03851393 | Hull University Teaching Hospitals NHS Trust | N/A |
| Unknown | Montelukast for Postinfectious Cough NCT02352545 | Beijing Chao Yang Hospital | Phase 2 |
| Unknown | The Cuff Pressure of an Endotracheal Tube After Supine-to-lateral Position Change NCT02165319 | Seoul National University Hospital | N/A |
| Completed | Effect of Electronic Cigarette Use on Cough Reflex Sensitivity NCT02203162 | Montefiore Medical Center | Phase 4 |
| Completed | Single Dose Trial of Extended Release Combination Tablet Codeine and Guaifenesin NCT02157649 | Nexgen Pharma, Inc | Phase 1 |
| Completed | Respiratory Complaints Checklist Trial NCT02283892 | Hospital de Clinicas de Porto Alegre | N/A |
| Completed | Comparison of Efficacy and Tolerability of Two Cough Syrups in Cough Due to Cold in Children. NCT01968434 | Clalit Health Services | Phase 4 |
| Completed | GSK2339345 Hypertussive Challenge Study NCT01899768 | GlaxoSmithKline | Phase 2 |
| Completed | Optimal Remifentanil Ce for Preventing Severe Cough and Hyperdynamic Response During Tracheal Extubation NCT03132519 | Fundacion Clinica Valle del Lili | Phase 4 |
| Completed | Respiratory Kinematics During Voluntary and Reflex Cough in Healthy Adults NCT01854268 | University of Florida | Phase 1 / Phase 2 |
| Completed | Effects of Pepper Gas Exposure in Non-combatant Bystanders. NCT01922700 | Sheri Kashmir Institute of Medical Sciences | — |
| Completed | Using Pneumococcal Vaccines in Combination for Maximum Protection From Ear and Lung Infections in First 3 Year NCT01735084 | Menzies School of Health Research | Phase 4 |
| Completed | Efficacy of Alkalinized Lidocaine in the Endotracheal Tube Cuff on the Incidence of Coughing During Emergence NCT01715688 | Centre hospitalier de l'Université de Montréal (CHUM) | N/A |
| Completed | Effect of Agave Syrup, Placebo, and No Treatment on Nocturnal Cough and Sleep Quality for Coughing Infants/Tod NCT01721395 | Penn State University | N/A |
| Unknown | Does CBT Improve the Perception/Impact of Cough and Breathlessness in IPF Patients NCT01738711 | Royal Victoria Infirmary | N/A |
| Completed | Bronchodilating and Bronchoprotective Effects of Deep Inspirations NCT01659476 | Queen's University | N/A |
| Completed | Comparison Between Oxomemazine, Guaifenesin and Potassium Iodate Versus Guaifenesin Monotherapy in Acute Cough NCT01257243 | EMS | Phase 3 |
| Completed | Benzonatate Dose Tolerance Study NCT01690975 | Pfizer | Phase 1 |
| Completed | Study of the Safety and Effectiveness of BC1036 Capsules to Treat Frequent Long-Term Cough NCT01656668 | Respicopea Limited | Phase 3 |
| Completed | Effect of Muscular Exercise on Cough Reflex NCT02882555 | Central Hospital, Nancy, France | N/A |
| Completed | Diaphragmatic Function in Stroke Patients. NCT01637649 | The Catholic University of Korea | — |
| Completed | Database of All Patients Who Have Undergone Pulmonary Function Testing at Singapore General Hospital NCT01601288 | Singapore General Hospital | — |
| Completed | A Study to Investigate the Safety, Tolerability and Pharmacokinetics of GSK2339345. NCT01587716 | GlaxoSmithKline | Phase 1 |
| Terminated | A Novel Formulation of Pasteurized Maple Cough Syrup Compared With Placebo on Nocturnal Cough and Sleep Qualit NCT01588249 | Zarbee's Inc. | N/A |
| Completed | Efficacy of Two Bolus Doses of Remifentanil on the Incidence of Coughing During Emergence of Anesthesia NCT01489072 | Centre hospitalier de l'Université de Montréal (CHUM) | N/A |
| Completed | Effect of Betamethasone Gel and Lidocaine Jelly on Sore Throat, Cough and Hoarseness of NCT02114021 | Tehran University of Medical Sciences | Phase 3 |
| Completed | Efficacy of Alkalinized Lidocaine Compared to Remifentanil on the Incidence of Coughing During Emergence of An NCT01451840 | Centre hospitalier de l'Université de Montréal (CHUM) | N/A |
| Completed | Hull Airway Reflux Questionnaire Scores Following Cough Treatment NCT01515280 | Hull University Teaching Hospitals NHS Trust | — |
| Completed | Sonography in an Unselected Population of Acute Admitted Patients With Respiratory Symptoms NCT01486394 | Odense University Hospital | N/A |
| Completed | The Safety, Tolerability, PK and PD of GSK2339345 in Healthy Subjects NCT01494636 | GlaxoSmithKline | Phase 1 |
| Withdrawn | Evaluation of Efficacy and Safety in Control Cough and the Relief of Nasal Symptoms in Children 2-12 Years Old NCT01177852 | Ache Laboratorios Farmaceuticos S.A. | Phase 3 |
| Unknown | The Effect of Ebastine/Pseudoephedrine on Subacute Cough NCT02065440 | Seoul National University Hospital | N/A |
| Withdrawn | Study to Evaluate the Efficacy and Safety of Fixed Dose Combination of Diphenhydramine + Pseudoephedrine + Dro NCT01199497 | Ache Laboratorios Farmaceuticos S.A. | Phase 3 |
| Withdrawn | Pulmozyme for Sjogren's Associated Cough NCT01357447 | UConn Health | Phase 1 |
| Unknown | Comparative Efficacy of the Suppository Versus Guaiacol Suppository Versus Guaifenesin Syrup in Pediatric Pati NCT01119534 | Azidus Brasil | Phase 3 |
| Completed | Demonstration of Near Zero Antibiotic Prescribing for Acute Bronchitis NCT01240174 | Brigham and Women's Hospital | N/A |
| Completed | Concentrations of Remifentanil for Extubation NCT02711904 | Seganest | Phase 4 |
| Completed | Clinical Evaluation of QFlu Combo Test NCT01506583 | Cellex, Inc. | — |
| Completed | Cough Monitoring Study NCT01263626 | Vanderbilt University | — |
| Completed | Evaluation of the Efficacy and Tolerability of ABO/MEG-B-09 in Children With Acute Cough NCT01259674 | Aboca Spa Societa' Agricola | Phase 3 |
| Completed | Montelukast for Acute Bronchiolitis and Postbronchiolitis Viral Induced Wheezing NCT01370187 | Hormozgan University of Medical Sciences | N/A |
| Completed | Efficacy of Remifentanil Compared to Lidocaine on the Incidence of Coughing During Emergence of Anesthesia NCT01026129 | Centre hospitalier de l'Université de Montréal (CHUM) | N/A |
| Completed | The Effect-site Concentration of Remifentanil for Preventing Cough During Emergence From Balanced Anesthesia f NCT01291849 | Yonsei University | Phase 4 |
| Completed | Neurophysiology of Cough Reflex Hypersensitivity NCT00977366 | University of Manchester | N/A |
| Terminated | A Study to Evaluate the Efficacy and Safety of IV Peramivir in Addition to Standard of Care Compared to Standa NCT00958776 | BioCryst Pharmaceuticals | Phase 3 |
| Terminated | Phase II Open-Label Pilot Study of V3381 in Chronic Cough NCT01401673 | Vernalis (R&D) Ltd | Phase 2 |
| Completed | Sub-study to Spinal Cord Stimulation to Restore Cough NCT00995215 | MetroHealth Medical Center | N/A |
| Completed | Safety Study of IV Peramivir in Hospitalized Subjects With Confirmed or Suspected Influenza NCT00957996 | BioCryst Pharmaceuticals | Phase 3 |
| Completed | The Effect of Azithromycin in Patients With Chronic Obstructive Pulmonary Disease (COPD) and Chronic Productiv NCT01071161 | Isala | Phase 3 |
| Completed | MedlinePlus Health Prescriptions: Developing a Pragmatic Approach for Clinic Use NCT01050465 | University of Missouri-Columbia | N/A |
| Completed | Benefits of Exchanging a Double Lumen Tube to a Proseal Laryngeal Mask or a Single Lumen Tube After a Thoracic NCT00925613 | Université de Montréal | Phase 3 |
| Completed | The Effect of Honey on Nocturnal Cough and Sleep Quality NCT01575821 | Meir Medical Center | N/A |
| Completed | Measurement of Exhaled Nitric Oxide (NO) and Bronchial Provocation Test With Mannitol as a Predictor of Respon NCT00916526 | Centre Hospitalier Universitaire de Saint Etienne | N/A |
| Terminated | Interferon-alpha Treatment of Chronic Cough in Chronic Obstructive Pulmonary Disease and Idiopathic Pulmonary NCT00690885 | Ainos, Inc. (f/k/a Amarillo Biosciences Inc. | Phase 2 |
| Completed | Accuracy of Cough Detection in Healthy Adults NCT00907491 | KarmelSonix Ltd. | — |
| Completed | Treatment of Chronic Cough in Idiopathic Pulmonary Fibrosis With Thalidomide NCT00600028 | Johns Hopkins University | Phase 3 |
| Completed | The Effect of Montelukast in Patients With Chronic Cough and Bronchial Hyperreactivity NCT00453765 | Isala | Phase 4 |
| Completed | The Nature of Reflux-respiratory Symptoms Association in Difficult to Treat Wheezing\Coughing Babies NCT00512382 | Wolfson Medical Center | — |
| Terminated | Exhaled Breath Condensate pH in Patients With Cough Caused by Gastroesophageal Reflux NCT00451841 | University of Massachusetts, Worcester | — |
| Completed | Study of the Efficacy and Safety of SCH 619734 in Subjects With Chronic Cough From an Unknown Cause (Study P04 NCT00506545 | Merck Sharp & Dohme LLC | Phase 2 |
| Completed | Study of the Efficacy and Safety of SCH 486757 in Subjects With Chronic Cough (Study P04887) NCT00506987 | Merck Sharp & Dohme LLC | Phase 2 |
| Completed | Pomegranate Products for Prevention of Common Cold NCT00617318 | Texas Heart Institute | Phase 3 |
| Completed | An Observational Study of Cough / Lower Respiratory Tract Infection (LRTI) in Primary Care NCT00353951 | Cardiff University | — |
| Terminated | Bronchial Hyper-responsiveness in Reflux Cough NCT00668317 | Hull University Teaching Hospitals NHS Trust | Phase 3 |
| Completed | Therapeutic Confirmatory Clinical Trial to Evaluate the Safety and Efficacy of AG1321001 in Chronic Cougher NCT00380315 | Ahn-Gook Pharmaceuticals Co.,Ltd | Phase 3 |
| Withdrawn | Longitudinal Study of Children With a Chronic Cough and the Impact of Gastroesophageal Reflux NCT00771706 | Massachusetts Eye and Ear Infirmary | Phase 3 |
| Completed | C-reactive Protein (CRP)-Guided Management Algorithm for Adults With Acute Cough NCT00221351 | University of California, San Francisco | N/A |
| Completed | Evaluation of Respiratory Specimens for Bacterial and Viral Pathogens by Real-Time PCR NCT00275691 | Mayo Clinic | — |
| Completed | Comparison of SCH 486757 to Codeine and Placebo in Subjects With Persistent Postviral Cough (Study P03069AM2)( NCT00230230 | Merck Sharp & Dohme LLC | Phase 2 |
| Completed | The Utility of Nexium in Chronic Cough and Reflux Disease NCT00287339 | University of North Carolina, Chapel Hill | Phase 4 |
| Completed | Effect of Honey and Dextromethorphan on Nocturnal Cough and Sleep NCT00127686 | Penn State University | Phase 1 |
| Unknown | Sputum and Plasma Levels of Nociceptin and Substance P in Patients With Asthma, COPD and Chronic Cough NCT00173225 | National Taiwan University Hospital | — |
| Completed | Spinal Cord Stimulation to Restore Cough NCT00116337 | MetroHealth Medical Center | N/A |
| Completed | Screening for Barrett's Esophagus in Otolaryngology Patients NCT00695227 | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) | N/A |
| Unknown | Evaluation of Spirometry Expert Support in General Practice NCT00131157 | Radboud University Medical Center | N/A |
| Completed | Iron Repletion in Chronic Cough and Iron Deficiency NCT01507792 | University of Turin, Italy | N/A |
| Completed | Efficacy and Safety of Levocetirizine for Treatment of Recurrent Cough Associated With Other Allergic Symptoms NCT00520754 | UCB Pharma | Phase 2 |
| Completed | Health Effects of Particulate Acids in Late Adolescence NCT00044317 | National Institute of Environmental Health Sciences (NIEHS) | — |