| The Efficacy of Traditional Chinese Medicine in Olfactory Dysfunction (NCT05448898) | Eye & ENT Hospital of Fudan University | 2022-07-15 |
| Efficacy of Gabapentin for Post-Covid-19 Olfactory Dysfunction (NCT05184192) | Washington University School of Medicine | 2022-01-10 |
| Fluvoxamine to Augment Olfactory Recovery For Long COVID-19 Parosmia (NCT05216614) | Washington University School of Medicine | 2021-12-14 |
| Olfactory Outcomes of Dupilumab Treatment for Nasal Polyposis (NCT04869436) | London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | 2021-07-19 |
| Intranasal Injection of PRP Versus Saline for Treatment of Olfactory Dysfunction (NCT04406584) | Stanford University | 2021-06-22 |
| Radiofrequency Intervention in Neurological Pathologies Post COVID-19 (NCT04920890) | Clinica Gema Leon | 2021-06-16 |
| Oral and Olfactory Complications of Recovered COVID-19 Patients (NCT04791436) | University of Giessen | 2021-05-01 |
| Olfactory Training for Olfactory Dysfunction After Coronavirus Disease - 19 (COVID-19) (NCT04764981) | Universidade do Estado do Pará | 2021-05-01 |
| Smell in Covid-19 and Efficacy of Nasal Theophylline (NCT04789499) | Washington University School of Medicine | 2021-03-15 |
| Correlation of Preoperative Global Olfactory Function With Frailty, Perioperative Neurocognitive Disorders and Mortality (NCT04761458) | Cliniques universitaires Saint-Luc- Université Catholique de Louvain | 2021-03-01 |
| Anosmia Rehabilitation in Patients Post Coronavirus Disease (COVID 19) (NCT04374474) | London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | 2021-01-10 |
| The ESTxENDS Trial- Substudy on Effects of Using Electronic Nicotine Delivery Systems (ENDS) on Olfactory Function (NCT04617444) | University of Bern | 2020-09-07 |
| Correlation of Preoperative Olfactory Identification Function With Frailty and Postoperative Complications and Mortality (NCT04700891) | Cliniques universitaires Saint-Luc- Université Catholique de Louvain | 2020-07-27 |
| Assessment of Olfactory Dysfunction in SARS CoV-2 (COVID-19) Infection (NCT04466982) | Cambridge University Hospitals NHS Foundation Trust | 2020-07-02 |
| Clinical and Immunological Responses After SARS-CoV-2 Infection Causing COVID-19 (NCT05038475) | Association "Naso Sano" Onlus | 2020-05-01 |
| Olfactory Training in Various Populations (NCT06115291) | University of Kansas Medical Center | 2020-02-13 |
| CAncer, NUtrition and Taste - Validation of the CANUT-QVA Questionnaire on Eating Habits in Cancer Patients (NCT04235153) | Hospices Civils de Lyon | 2020-01-09 |
| Smell Changes & Efficacy of Nasal Theophylline (NCT03990766) | Washington University School of Medicine | 2019-05-15 |
| Olfactory Function and Olfactory Bulb Volume in Acromegaly Patients (NCT04138537) | Bezmialem Vakif University | 2018-08-15 |
| At-Home Olfactory Training (NCT03611673) | University of Kansas Medical Center | 2018-06-02 |
| Steroid Nasal Irrigation for Flavor Evaluation and Detection Study (NCT02985515) | Washington University School of Medicine | 2016-09-28 |
| Intranasal Retinoic Acid Treatment for Patients With OlfactoryLOSS: A RANDOMIZED CONTROLLED TRIAL (NCT03574701) | St. Paul's Hospital, Canada | 2016-05-25 |
| cAMP (Cyclic Adenosine Monophosphate) Levels in the Nose (NCT01332825) | University of Washington | 2011-03-01 |