| Single Dose Trial of Extended Release Combination Tablet Codeine and Guaifenesin (NCT02157649) | Nexgen Pharma, Inc | 2014-06-01 |
| Respiratory Complaints Checklist Trial (NCT02283892) | Hospital de Clinicas de Porto Alegre | 2014-01-01 |
| Comparison of Efficacy and Tolerability of Two Cough Syrups in Cough Due to Cold in Children. (NCT01968434) | Clalit Health Services | 2013-12-01 |
| GSK2339345 Hypertussive Challenge Study (NCT01899768) | GlaxoSmithKline | 2013-11-01 |
| Optimal Remifentanil Ce for Preventing Severe Cough and Hyperdynamic Response During Tracheal Extubation (NCT03132519) | Fundacion Clinica Valle del Lili | 2013-10-01 |
| Respiratory Kinematics During Voluntary and Reflex Cough in Healthy Adults (NCT01854268) | University of Florida | 2013-05-01 |
| Effects of Pepper Gas Exposure in Non-combatant Bystanders. (NCT01922700) | Sheri Kashmir Institute of Medical Sciences | 2013-04-01 |
| Using Pneumococcal Vaccines in Combination for Maximum Protection From Ear and Lung Infections in First 3 Years of Life (NCT01735084) | Menzies School of Health Research | 2013-03-12 |
| 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) | 2013-01-01 |
| Effect of Agave Syrup, Placebo, and No Treatment on Nocturnal Cough and Sleep Quality for Coughing Infants/Toddlers and Their Parents (NCT01721395) | Penn State University | 2013-01-01 |
| Does CBT Improve the Perception/Impact of Cough and Breathlessness in IPF Patients (NCT01738711) | Royal Victoria Infirmary | 2012-12-01 |
| Bronchodilating and Bronchoprotective Effects of Deep Inspirations (NCT01659476) | Queen's University | 2012-10-01 |
| Study of the Safety and Effectiveness of BC1036 Capsules to Treat Frequent Long-Term Cough (NCT01656668) | Respicopea Limited | 2012-07-01 |
| Benzonatate Dose Tolerance Study (NCT01690975) | Pfizer | 2012-07-01 |
| Diaphragmatic Function in Stroke Patients. (NCT01637649) | The Catholic University of Korea | 2012-06-01 |
| Effect of Muscular Exercise on Cough Reflex (NCT02882555) | Central Hospital, Nancy, France | 2012-06-01 |
| Database of All Patients Who Have Undergone Pulmonary Function Testing at Singapore General Hospital (NCT01601288) | Singapore General Hospital | 2012-05-01 |
| 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) | 2012-04-01 |
| Effect of Betamethasone Gel and Lidocaine Jelly on Sore Throat, Cough and Hoarseness of (NCT02114021) | Tehran University of Medical Sciences | 2012-03-01 |
| Hull Airway Reflux Questionnaire Scores Following Cough Treatment (NCT01515280) | Hull University Teaching Hospitals NHS Trust | 2012-01-01 |
| Efficacy of Alkalinized Lidocaine Compared to Remifentanil on the Incidence of Coughing During Emergence of Anesthesia (NCT01451840) | Centre hospitalier de l'Université de Montréal (CHUM) | 2012-01-01 |
| The Safety, Tolerability, PK and PD of GSK2339345 in Healthy Subjects (NCT01494636) | GlaxoSmithKline | 2011-10-17 |
| Evaluation of Efficacy and Safety in Control Cough and the Relief of Nasal Symptoms in Children 2-12 Years Old,Suffering From Cough and Acute Rhinitis (NCT01177852) | Ache Laboratorios Farmaceuticos S.A. | 2011-10-01 |
| The Effect of Ebastine/Pseudoephedrine on Subacute Cough (NCT02065440) | Seoul National University Hospital | 2011-09-01 |
| Study to Evaluate the Efficacy and Safety of Fixed Dose Combination of Diphenhydramine + Pseudoephedrine + Dropropizine in the Control of Cough and the Relief of Nasal Symptoms, Suffering From Non-productive Cough and Acute Rhinitis (NCT01199497) | Ache Laboratorios Farmaceuticos S.A. | 2011-08-01 |
| Comparative Efficacy of the Suppository Versus Guaiacol Suppository Versus Guaifenesin Syrup in Pediatric Patients With Cough Due the Infectious Origin (NCT01119534) | Azidus Brasil | 2011-05-01 |
| Pulmozyme for Sjogren's Associated Cough (NCT01357447) | UConn Health | 2011-05-01 |
| Demonstration of Near Zero Antibiotic Prescribing for Acute Bronchitis (NCT01240174) | Brigham and Women's Hospital | 2011-03-01 |
| Concentrations of Remifentanil for Extubation (NCT02711904) | Seganest | 2011-01-01 |
| Clinical Evaluation of QFlu Combo Test (NCT01506583) | Cellex, Inc. | 2010-11-01 |
| Cough Monitoring Study (NCT01263626) | Vanderbilt University | 2010-11-01 |
| Evaluation of the Efficacy and Tolerability of ABO/MEG-B-09 in Children With Acute Cough (NCT01259674) | Aboca Spa Societa' Agricola | 2010-10-01 |
| Montelukast for Acute Bronchiolitis and Postbronchiolitis Viral Induced Wheezing (NCT01370187) | Hormozgan University of Medical Sciences | 2010-07-01 |
| Efficacy of Remifentanil Compared to Lidocaine on the Incidence of Coughing During Emergence of Anesthesia (NCT01026129) | Centre hospitalier de l'Université de Montréal (CHUM) | 2010-04-01 |
| The Effect-site Concentration of Remifentanil for Preventing Cough During Emergence From Balanced Anesthesia for Nasal Surgery (NCT01291849) | Yonsei University | 2010-03-01 |
| Neurophysiology of Cough Reflex Hypersensitivity (NCT00977366) | University of Manchester | 2010-03-01 |
| A Study to Evaluate the Efficacy and Safety of IV Peramivir in Addition to Standard of Care Compared to Standard of Care Alone in Adults and Adolescents Who Are Hospitalized Due to Influenza (NCT00958776) | BioCryst Pharmaceuticals | 2009-11-01 |
| Phase II Open-Label Pilot Study of V3381 in Chronic Cough (NCT01401673) | Vernalis (R&D) Ltd | 2009-10-01 |
| Sub-study to Spinal Cord Stimulation to Restore Cough (NCT00995215) | MetroHealth Medical Center | 2009-10-01 |
| Safety Study of IV Peramivir in Hospitalized Subjects With Confirmed or Suspected Influenza (NCT00957996) | BioCryst Pharmaceuticals | 2009-10-01 |
| The Effect of Azithromycin in Patients With Chronic Obstructive Pulmonary Disease (COPD) and Chronic Productive Cough (NCT01071161) | Isala | 2009-09-01 |
| MedlinePlus Health Prescriptions: Developing a Pragmatic Approach for Clinic Use (NCT01050465) | University of Missouri-Columbia | 2009-05-01 |
| Benefits of Exchanging a Double Lumen Tube to a Proseal Laryngeal Mask or a Single Lumen Tube After a Thoracic Surgery (NCT00925613) | Université de Montréal | 2009-04-01 |
| The Effect of Honey on Nocturnal Cough and Sleep Quality (NCT01575821) | Meir Medical Center | 2009-01-01 |
| Measurement of Exhaled Nitric Oxide (NO) and Bronchial Provocation Test With Mannitol as a Predictor of Response to Inhaled Corticosteroids in Chronic Cough (NCT00916526) | Centre Hospitalier Universitaire de Saint Etienne | 2008-11-01 |
| Interferon-alpha Treatment of Chronic Cough in Chronic Obstructive Pulmonary Disease and Idiopathic Pulmonary Fibrosis (NCT00690885) | Ainos, Inc. (f/k/a Amarillo Biosciences Inc. | 2008-06-01 |
| Accuracy of Cough Detection in Healthy Adults (NCT00907491) | KarmelSonix Ltd. | 2008-02-01 |
| The Effect of Montelukast in Patients With Chronic Cough and Bronchial Hyperreactivity (NCT00453765) | Isala | 2007-12-01 |
| Treatment of Chronic Cough in Idiopathic Pulmonary Fibrosis With Thalidomide (NCT00600028) | Johns Hopkins University | 2007-12-01 |
| The Nature of Reflux-respiratory Symptoms Association in Difficult to Treat Wheezing\Coughing Babies (NCT00512382) | Wolfson Medical Center | 2007-03-01 |
| Exhaled Breath Condensate pH in Patients With Cough Caused by Gastroesophageal Reflux (NCT00451841) | University of Massachusetts, Worcester | 2007-03-01 |
| Study of the Efficacy and Safety of SCH 486757 in Subjects With Chronic Cough (Study P04887) (NCT00506987) | Merck Sharp & Dohme LLC | 2007-01-01 |
| Pomegranate Products for Prevention of Common Cold (NCT00617318) | Texas Heart Institute | 2007-01-01 |
| Bronchial Hyper-responsiveness in Reflux Cough (NCT00668317) | Hull University Teaching Hospitals NHS Trust | 2006-09-01 |
| An Observational Study of Cough / Lower Respiratory Tract Infection (LRTI) in Primary Care (NCT00353951) | Cardiff University | 2006-09-01 |
| Therapeutic Confirmatory Clinical Trial to Evaluate the Safety and Efficacy of AG1321001 in Chronic Cougher (NCT00380315) | Ahn-Gook Pharmaceuticals Co.,Ltd | 2006-03-01 |
| Longitudinal Study of Children With a Chronic Cough and the Impact of Gastroesophageal Reflux (NCT00771706) | Massachusetts Eye and Ear Infirmary | 2006-01-01 |
| Evaluation of Respiratory Specimens for Bacterial and Viral Pathogens by Real-Time PCR (NCT00275691) | Mayo Clinic | 2005-10-01 |
| C-reactive Protein (CRP)-Guided Management Algorithm for Adults With Acute Cough (NCT00221351) | University of California, San Francisco | 2005-10-01 |
| Comparison of SCH 486757 to Codeine and Placebo in Subjects With Persistent Postviral Cough (Study P03069AM2)(COMPLETED) (NCT00230230) | Merck Sharp & Dohme LLC | 2005-10-01 |
| The Utility of Nexium in Chronic Cough and Reflux Disease (NCT00287339) | University of North Carolina, Chapel Hill | 2005-09-01 |
| Effect of Honey and Dextromethorphan on Nocturnal Cough and Sleep (NCT00127686) | Penn State University | 2005-09-01 |
| Sputum and Plasma Levels of Nociceptin and Substance P in Patients With Asthma, COPD and Chronic Cough (NCT00173225) | National Taiwan University Hospital | 2005-06-01 |
| Spinal Cord Stimulation to Restore Cough (NCT00116337) | MetroHealth Medical Center | 2004-09-30 |
| Screening for Barrett's Esophagus in Otolaryngology Patients (NCT00695227) | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) | 2004-05-01 |
| Evaluation of Spirometry Expert Support in General Practice (NCT00131157) | Radboud University Medical Center | 2003-01-01 |
| Iron Repletion in Chronic Cough and Iron Deficiency (NCT01507792) | University of Turin, Italy | 2002-01-01 |
| Efficacy and Safety of Levocetirizine for Treatment of Recurrent Cough Associated With Other Allergic Symptoms in Children (NCT00520754) | UCB Pharma | 2001-12-01 |
| Health Effects of Particulate Acids in Late Adolescence (NCT00044317) | National Institute of Environmental Health Sciences (NIEHS) | |