| Not Yet Recruiting | Acoustic Resonance Therapy for Treating Empty Nose Syndrome NCT07215013 | Stanford University | N/A |
| Recruiting | Patient-Reported Outcomes and Complications After Structural Rhinoplasty Using Septal Extension Grafts NCT07531810 | Cumhuriyet University Hospital | — |
| Recruiting | Evaluation of the Reliability of AAR as an Independent Tool for Surgical Indication in Nasal Obstruction NCT07379775 | Centre Hospitalier Intercommunal de Toulon La Seyne sur Mer | — |
| Withdrawn | Steroids for Rhinoplasty: Pain, Nausea, Edema and Ecchymosis NCT06483204 | Vanderbilt University Medical Center | Phase 4 |
| Not Yet Recruiting | Traditional vs. Posterior Nasal Radiofrequency Ablation for Chronic Rhinitis NCT07323888 | Chien Yu Huang | N/A |
| Terminated | Steroid Treatment for Elimination of Rebound Obstruction From Intranasal Decongestants NCT07168148 | Washington University School of Medicine | Phase 2 |
| Active Not Recruiting | Laser Posterior Nasal Nerve Neurolysis NCT07050992 | Chiayi Christian Hospital | N/A |
| Recruiting | Performance and Safety Assessment of the Mechanical Decongestant Seawater Spray Enriched With Essential Oils F NCT06580210 | Laboratoires Gilbert | — |
| Recruiting | Nasal Obstruction With Oxymetazoline and Corticosteroids NCT06830109 | Washington University School of Medicine | Phase 2 |
| Recruiting | Diagnosis of Respiratory Disorders by the Numerical Modeling. NCT06670261 | University Hospital, Bordeaux | — |
| Completed | Using ChatGPT to Help Guide Treatment for Sinus and Nasal Problems NCT07140250 | Carol Yan | N/A |
| Completed | Efficacy And Safety of An IRE System For Treatment of Inferior Turbinate Hypertrophy NCT06438185 | ENTire Medical Ltd. | N/A |
| Unknown | Nasal Obstruction Compared by Rhinomanometry and Nasal Inspiratory Peak Flow After Endoscopic Nasal Surgery NCT05921396 | University Hospital Ostrava | N/A |
| Recruiting | Safety and Performance Assessment of the Decongestant Seawater Spray Pocket Valve Enriched With Essential Oils NCT05494346 | Laboratoires Gilbert | N/A |
| Unknown | Impact of Nasal Isotonic Solution Irigation on Healthy Athletes' Nasal Flow and Nasal Obstruction Exercise Out NCT05948800 | University Hospital Sestre Milosrdnice | N/A |
| Withdrawn | Medical Rhinoplasty: Evaluation of the Efficacy of Hyaluronic Acid in the Treatment of Internal Nasal Valves. NCT05134831 | Hospices Civils de Lyon | — |
| Recruiting | Nasal Obstruction and Olfactory Losses NCT05920330 | Ohio State University | N/A |
| Unknown | VivAer: A Correlation Between Symptom Scores and Objective Findings NCT05573919 | Endeavor Health | N/A |
| Completed | Effect on Sleep of Surgical Treatment of Severe Nasal Obstruction NCT05582070 | University Hospital, Bordeaux | N/A |
| Unknown | FFP3 Respirators and Ears - Effects on Middle Ear Pressure and Hearing NCT05222230 | Liverpool University Hospitals NHS Foundation Trust | N/A |
| Completed | Turbinate Volume Reduction Under Local Anesthesia: Randomized Clinical Trial; Our Experience NCT06612450 | Kafrelsheikh University | N/A |
| Completed | Design and Application of Vitamin D Films for Burn Healing After Cauterizing Surgery NCT05142072 | Deraya University | EARLY_Phase 1 |
| Completed | The Vivaer Procedure for Treatment of the Septal Swell Bodies (SWELL) NCT05099263 | Aerin Medical | N/A |
| Terminated | Suture-based, Minimally Invasive Technique Used to Correct NSD NCT04891263 | Stanford University | N/A |
| Completed | Effect of Tranexamic Acid on Postoperative Bleeding Following Sinus and Nasal Surgery NCT04754230 | Stanford University | Phase 4 |
| Recruiting | Does Batten Grafting Improve Nasal Outcomes in Septoplasty and Turbinate Reduction? NCT05287841 | Northwell Health | N/A |
| Unknown | Nasal Breathing and Physical Capacity NCT04712799 | Sorlandet Hospital HF | Phase 4 |
| Enrolling By Invitation | Antibiotic Prophylaxis in Rhinoplasty NCT04194216 | Stanford University | Phase 3 |
| Unknown | Clinical Extend Study to Evaluate Safety and Effectiveness of TnR Nasal Mesh for Correction of Nasal Septum on NCT04332575 | T&R Biofab Co., Ltd. | — |
| Completed | Study of the AERin Medical Vivaer® ARC Stylus for Nasal AirWAY Obstruction NCT04277507 | Aerin Medical | N/A |
| Completed | Computational Modeling of Cleft Lip Nasal Deformity and Assessment of Nasal Function and Treatment Outcomes NCT04150783 | Duke University | — |
| Completed | Changes in Nasal Airflow Parameters After Septoplasty and Turbinoplasty NCT04220853 | University Hospital Ostrava | N/A |
| Unknown | Efficacy of an Intranasal Stent on Nasal Obstruction at Night NCT04228016 | Centre Hospitalier Intercommunal Creteil | N/A |
| Recruiting | Outcome Analysis in Septorhinoplasty NCT03925389 | FRANK DECLAU | — |
| Unknown | The Role of Spreader Grafts in Reduction Rhinoseptoplasty: a Randomized Clinical Trial With Quality of Life As NCT04499469 | Hospital de Clinicas de Porto Alegre | N/A |
| Completed | A New Treatment for Mechanical Nasal Obstruction NCT03456115 | Johns Hopkins University | N/A |
| Completed | Quality of Life Impact of Nasal Airway Treatment With Aerin Medical Device NCT03290300 | Aerin Medical | — |
| Completed | Treatment Outcome Using Vivaer Stylus to Treat Nasal Airway Obstruction NCT03156270 | Aerin Medical | N/A |
| Unknown | The Role of the Nose in Snoring and Sleep Apnea NCT03072173 | Lovisenberg Diakonale Hospital | N/A |
| Completed | Administration of Dexamethasone in PONV Prophylaxis in Children Undergoing Adenotomy NCT03398044 | University Hospital Ostrava | N/A |
| Completed | Effects of Surgical Correction of Nasal Obstruction on Oxygen Uptake and Ventilation Volume NCT06957262 | Tuba Melekoğlu | N/A |
| Completed | Correlation of the Objective and Subjective Measures of the Nasal Obstruction Before and After Surgery of the NCT03331107 | Fondation Hôpital Saint-Joseph | — |
| Completed | LATERA-OFFICE Study NCT02964312 | Spirox, Inc. | N/A |
| Completed | Treatment of Nasal Airway Obstruction Using the Aerin Medical Device NCT02914236 | Aerin Medical | N/A |
| Completed | Spirox Latera™ Implant Support of Lateral Nasal Wall Cartilage (LATERAL-OR) Study NCT02952313 | Spirox, Inc. | N/A |
| Completed | The Effectiveness of Nasal Corticosteroids Versus Placebo in Nasal Obstruction in Patients With Nasal Septal D NCT02877485 | Stanford University | Phase 4 |
| Unknown | A Clinical Study to Evaluate the Safety and Efficacy of Surgical Material for Nasal Septoplasty NCT03088618 | T&R Biofab Co., Ltd. | N/A |
| Unknown | Subjective and Objective Outcome of Septoplasty With or Without Infundibulotomy NCT05698940 | University of Zurich | N/A |
| Terminated | Trial Comparing Microdebrider-Assisted Inferior Turbinoplasty (MAIT) vs Submucous Resection (SMR) NCT02695602 | NYU Langone Health | N/A |
| Completed | Hypnosis to Perform Awake Intubation NCT02513511 | University of Lausanne Hospitals | N/A |
| Completed | Role of Airtraq Mobile to Improve Intubation Conditions With Airtraq NCT02510924 | University of Lausanne Hospitals | N/A |
| Completed | Comparison of Intubation Conditions Between the Gliderite and the S-Guide NCT02519647 | University of Lausanne Hospitals | N/A |
| Withdrawn | Pain Relief for Submucosal Resection of Nasal Septum in Adults Does Ketamine Have a Pre-Emptive Effect? NCT02294162 | Western Galilee Hospital-Nahariya | N/A |
| Unknown | The Relationship Between Gastroesophageal Reflux and Pediatric Rhinitis: Significance of Pale/Blue Colored Tur NCT02278081 | McGill University Health Centre/Research Institute of the McGill University Health Centre | Phase 4 |
| Completed | Assessment of Adenoidal Obstruction in Children : Clinical Signs Versus Flexible Nasal Endoscopy and Roentgeno NCT01965457 | Carmel Medical Center | — |
| Completed | The Effect of Nasal Hair on Nasal Obstruction NCT01850511 | Mayo Clinic | N/A |
| Completed | Nasal Saline Irrigation After Radiation Therapy for Oropharyngeal Cancer NCT02338102 | Lisa Shnayder | N/A |
| Unknown | Demonstrate the Therapeutic Clinical Equivalence of Two Mometasone Nasal Sprays NCT01702103 | PH&T S.p.A. | Phase 3 |
| Completed | Turbinate Cauterization in Pediatric Patients With Nasal Obstruction NCT01695967 | Eastern Virginia Medical School | N/A |
| Completed | Rhinopharyngeal Retrograde Clearance is Effective to Adequate Upper Airways Function in Adults NCT01976039 | University of Sao Paulo | N/A |
| Completed | Comparison of a Septal Stapler to Suture Closure in Nasal Septoplasty NCT01541839 | University of Alberta | N/A |
| Completed | The Role of Spreader Flaps in Preventing of Nasal Obstruction NCT01907243 | Tehran University of Medical Sciences | Phase 3 |
| Completed | Inferior Turbinate Surgery in Rhinoseptoplasty: a Randomized Clinical Trial With Quality of Life Outcomes NCT01457638 | Hospital de Clinicas de Porto Alegre | N/A |
| Completed | Nasal Obstruction in Sleep Apnea Patients Compared to the General Population NCT01282125 | Norwegian University of Science and Technology | — |
| Completed | Clinical Evaluation of QFlu Combo Test NCT01506583 | Cellex, Inc. | — |
| Completed | Impact of External Nasal Dilator on the Rhinogram NCT01411969 | University of Sao Paulo General Hospital | — |
| Completed | The Effect of Packing in Post Operative Management of FESS NCT00793117 | Tehran University of Medical Sciences | Phase 4 |
| Completed | Heated Humidified Continuous Positive Airway Pressure and Nasal Physiology NCT00850876 | University of Athens | — |
| Withdrawn | Analysis of Impact on Nasal Obstruction by Commercially Available Internal Nasal Stents NCT00683254 | Bethany L. Jones | — |
| Completed | Randomized Clinical Trial of Nasal Turbinate Reduction to Improve Continuous Positive Airway Pressure (CPAP) O NCT00503802 | University of Washington | Phase 2 |
| Withdrawn | Randomized Trial Comparing Partial Resection of Inferior Turbinate(PRIT) and Radiofrequency Ablation(RFA) for NCT00358267 | Weill Medical College of Cornell University | N/A |
| Withdrawn | Placebo-controlled Trial With Nasonex for Nasal Obstruction Secondary to Adenoids Hypertrophy in Children (P04 NCT00553891 | Organon and Co | Phase 4 |