| Not Yet Recruiting | Feasibility and Safety of the Airway Exchange Broncholaryngoscope (AEBLScope) NCT07033702 | University of Southern California | N/A |
| Enrolling By Invitation | Feasibility of Tracheobronchial Reconstruction Using Allogenic Aortic Patch in Children NCT07240259 | National Taiwan University Hospital | N/A |
| Not Yet Recruiting | Establishment of Diagnosis and Classification System for Lung Interstitial and Airway Diseases (LIAD) NCT06987266 | Xiangya Hospital of Central South University | — |
| Recruiting | Tubeless Tracheal and Carinal Reconstruction NCT07065565 | Shuben Li | N/A |
| Not Yet Recruiting | Artificial Intelligence-based Voice Assessment of Children and Adults Respiratory Conditions NCT06630078 | Fondazione Policlinico Universitario Agostino Gemelli IRCCS | N/A |
| Not Yet Recruiting | Bronchoscopy Versus Imaging in Diagnosis of Airway Diseases in Critically Ill Children NCT06526780 | Assiut University | N/A |
| Recruiting | The Effect of phoSPHocreatine on mEdical Emergency Team (Met) tREated Patients NCT06503016 | Università Vita-Salute San Raffaele | Phase 3 |
| Recruiting | FeNO Detection in Asthma Diagnosis: A New Technology Approach NCT06852911 | Novlead Inc. | N/A |
| Recruiting | Study of Inflammatory and Physiological Profiles of Healthy and Diseased Lung NCT06144476 | Guy's and St Thomas' NHS Foundation Trust | — |
| Recruiting | STOP-Bang Questionnaire: A Predictor of Obstructive Sleep Apnea and Difficult Mask/Intubation? NCT06247631 | Atatürk Chest Diseases and Chest Surgery Training and Research Hospital | — |
| Unknown | Cuirass Fitting Study - Time for Mounting and Ventilation NCT06136858 | Rigshospitalet, Denmark | — |
| Recruiting | Evaluating Treatable Traits Across the Spectrum of Chronic Obstructive Airways Disease NCT05976919 | University of Leeds | — |
| Unknown | Study for the Validation of the Circuit of Examinations and Analyzes for Better Classification of Airway Disea NCT05826522 | Hopital Foch | — |
| Unknown | Tracheal Positive Pressure During High Flow Nasal Oxygen Administration in Critically Ill Patients: a Physiolo NCT05467332 | Azienda Sanitaria-Universitaria Integrata di Udine | — |
| Enrolling By Invitation | Biomarkers of Airway Disease, Barrett's and Underdiagnosed Reflux Noninvasively (BADBURN) NCT05216133 | NYU Langone Health | — |
| Recruiting | Effects of Blocking TSLP on Airway Inflammation and the Epithelial Immune-response to Exacerbation Triggers in NCT05507242 | Asger Sverrild | Phase 2 |
| Unknown | Sequential Strategy vs Palpation vs Routine Ultrasound for Detection of Cricothyroid Membrane NCT05535127 | Universidad de Antioquia | N/A |
| Recruiting | Therapeutic Effects of Jing Si Herbal Tea for COPD NCT06584786 | Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation | EARLY_Phase 1 |
| Recruiting | Treatment of Central Airway Stenoses Using Computer-Assisted Customized 3d Stents TATUM NCT04848025 | University Hospital, Toulouse | N/A |
| Completed | Evaluation of Education and Equipment in the Prehospital Setting NCT04842175 | Johannes Gutenberg University Mainz | — |
| Completed | Comparison of Pre-procedure Lignocaine Spray Versus Spray-as-you-go for Topical Airway Anesthesia in Flexible NCT07084623 | Sheikh Zayed Federal Postgraduate Medical Institute | N/A |
| Enrolling By Invitation | Determining Airway pH by Compartmental Exhaled Nitric Oxide Levels During Alkaline Buffer Challenge NCT04738422 | Indiana University | Phase 2 |
| Completed | Physical Status and Upper Airway Function in Neuromuscular Patients NCT04473612 | Universidad de Granada | — |
| Unknown | Characterisation of Large Airway Collapse During Exercise (LACE) NCT04264052 | Imperial College London | — |
| Completed | NO Measurements in Screening for Asthma and OSA, in Patients With Severe Snoring NCT03964324 | Christian von Buchwald | N/A |
| Unknown | NO Measurements in Screening for Asthma and OSA, in Patients With CRSwNP NCT03963648 | Christian von Buchwald | N/A |
| Unknown | Feasibility of Tracheobronchial Reconstruction Using Bioengineered Aortic Matrices NCT04850742 | National Taiwan University Hospital | N/A |
| Unknown | Endotracheal Dilator to Improve Oxygenation NCT03411928 | University of Cape Town | N/A |
| Completed | Airway Pressure and Lumen Changes During NIV With Flexible Bronchoscopy NCT03666403 | Taipei Veterans General Hospital, Taiwan | N/A |
| Unknown | Prevalence and Impact on Quality of Life of Airway Disease in Patients With Idiopathic Pulmonary Fibrosis NCT03215147 | Seoul National University Hospital | — |
| Unknown | Airway Stent Modified With 3D Printing for Gastro-respiratory Fistula Involving Carina and Distal Bronchi NCT03890523 | Ruijin Hospital | N/A |
| Unknown | Innate Immunity in Ozone-induced Airway Inflammation in COPD NCT04669743 | University of California, San Francisco | N/A |
| Completed | Nitrate Supplementation During Final Examination Stress NCT03159273 | Southern Methodist University | N/A |
| Unknown | Video Laryngoscopy in Pre-hospital Critical Care NCT02035449 | University of Aarhus | — |