Olfaction Disorders clinical trials
The registry lists 59 studies for Olfaction Disorders across more than 10 countries. 17 are recruiting or about to start. Per ClinicalTrials.gov, last updated 2026-09-25.
Status
- Completed
- 26
- Recruiting
- 11
- Status unknown
- 8
- Withdrawn
- 5
- Not yet recruiting
- 4
- Terminated
- 2
Phase
- Phase 2
- 13
- Phase 3
- 5
- Phase 1
- 2
- Phase 4
- 1
Where
- United States
- 19
- France
- 9
- Italy
- 5
- United Kingdom
- 3
- Canada
- 3
- China
- 2
Who runs them
Washington University School of Medicine (6) · Central Hospital, Nancy, France (2) · Stanford University (2) · Menoufia University (2) · Medical University of South Carolina (2) · University of North Carolina, Chapel Hill (2) · Centre Hospitalier Universitaire de Nice (2) · Uşak University (1)
Studies
Recruiting first, then most recently updated. Showing 50 of 59 — search for more.
- Longitudinal Deep Phenotyping of Central Mechanisms in Dysosmia: A Pilot Study Using Electrobulbogram (EBG), Functional MRI (fMRI), and Diffusion-Weighted Imaging (DWI)Enrolling by invitationNCT071494281 country
- Sinus Disease in Young Children With Cystic FibrosisRecruitingNCT061916401 country
- Study of Chemosensory Enhancement Through Neuromodulation Training (SCENT): Open LabelRecruitingNCT07689773Phase 21 country
- Olfactory Training as a Treatment for Olfactory Dysfunction Post COVID-19RecruitingNCT05384561Not applicable1 country
- Olfactory Training in Various PopulationsEnrolling by invitationNCT06115291Not applicable1 country
- Olfactory BiopsiesRecruitingNCT07021040Not applicable1 country
- Study of Chemosensory Enhancement Through Neuromodulation Training (SCENT for Long COVID)RecruitingNCT05855369Phase 2/31 country
- Adaptation Strategies for Coping With the Impact of Sensory Alterations on Eating Behavior in Children With Cancer: A Qualitative Study From the Perspective of Children and ParentsNot yet recruitingNCT074900931 country
- The Effectiveness of Steroid Nasal Drops in the Olfactory Cleft Combined With Olfactory Training for Patients With PIODNot yet recruitingNCT07386860Not applicable1 country
- Prospective Registery of Smell/Taste Clinic Ear/Nose/ThroatRecruitingNCT064560081 country
- Impact of Smell Testing on Health OutcomesNot yet recruitingNCT07222891Phase 21 country
- Olfactory Training on Smell Dysfunction Patients in HKRecruitingNCT05364125Not applicable1 country
- Stellate Ganglion Block with Lidocaine for the Treatment of COVID-19-Induced ParosmiaRecruitingNCT06055270Phase 31 country
- Study of EEG and Nasal Stimulus in Olfactory DisordersNot yet recruitingNCT06589375Not applicable
- Sodium Citrate in Smell Retraining for People With Post-COVID-19 Olfactory DysfunctionRecruitingNCT06204432Phase 21 country
- GnRH Therapy on Cognition in Down SyndromeRecruitingNCT04390646Phase 2/31 country
- Olfactory Cleft Stenosis and Obstruction on Paranasal Sinus CT Scan in Pre Septo Rhinoplasty Patients Without Respiratory Mucosa Pathology : Normal Variants or Pathologic Findings ?RecruitingNCT060821931 country
- Effects of Isotretinoin on SmellCompletedNCT07309341Not applicable1 country
- Ultramicronized Palmitoylethanolamide for Smell, Taste in Children With Autism Spectrum Disorder.CompletedNCT07631455Not applicable1 country
- Post-Covid-19 Patients Follow-up StudyCompletedNCT07571382Not applicable1 country
- Multimodal Chewing Gum Flavour Training to Aid Flavour Perception Recovery - a Pilot Study.CompletedNCT07498062Not applicable1 country
- Stellate Ganglion Block for COVID-19-Induced Olfactory DysfunctionCompletedNCT05445921Phase 1/21 country
- Study of Olfactory Disorders in Patients With Cardiac AmyloidosisCompletedNCT04661800Not applicable1 country
- Trial Evaluating the Efficacy of Local Budesonide Therapy in the Management of Hyposmia in COVID-19 Patients Without Signs of SeverityCompletedNCT04361474Phase 31 country
- The Relationship Between Olfactory and Gustatory Senses, Hedonic Hunger, and Diet Quality After Bariatric SurgeryCompletedNCT072900751 country
- Stellate Ganglion Block for COVID-induced ParosmiaCompletedNCT06253806Phase 21 country
- Treatment of Olfactory Dysfunction Using Vagus Nerve StimulationActive, not recruitingNCT06817499Not applicable1 country
- Assessment of Olfactory Dysfunction in SARS CoV-2 (COVID-19) InfectionCompletedNCT044669821 country
- COVID-19: Post-covid Olfactory Disorders AssessmentCompletedNCT047999771 country
- Taste and Smell Dysfunction in Patients More Than Two Years After Start of Immune Checkpoint Inhibitor TherapyCompletedNCT064950081 country
- Efficacy of Gabapentin for Post-Covid-19 Olfactory DysfunctionCompletedNCT05184192Phase 21 country
- Mindfulness-Based Stress Reduction Versus Lifestyle Intervention for Long-Haul Covid-19 ParosmiaTerminatedNCT06789952Not applicable1 country
- Olfactory and Taste Changes During Fasting Mimicking Diet (FMD)CompletedNCT04529161Not applicable1 country
- Rapid Screening for Olfactory Disorders in Covid-19 InfectionWithdrawnNCT04696601Not applicable1 country
- Triggers for Post-Viral ParosmiaCompletedNCT048684351 country
- Olfaction Changes in Patients Undergoing Spine SurgeryCompletedNCT041947881 country
- Clinical and Immunological Responses After SARS-CoV-2 Infection Causing COVID-19Status unknownNCT050384751 country
- Intranasal Injection of PRP Versus Saline for Treatment of Olfactory DysfunctionCompletedNCT04406584Not applicable1 country
- Lactoferrin for COVID-19-Induced Taste or Smell AbnormalityWithdrawnNCT05760079Not applicable
- "Platelet Rich Plasma for the Management of Post-Viral Olfactory Dysfunction.Status unknownNCT05666492Not applicable1 country
- Olfactory Disfunction and Co-ultraPEALutCompletedNCT04853836Phase 41 country
- Olfaction and Inflammation in Chronic Rhinosinusitis With Nasal PolypsTerminatedNCT04104594Not applicable1 country
- Morphological Abnormalities of the Olfactory Bulb on MRI and Olfactometry in Anosmic Versus Normosmic COVID-19 PatientsCompletedNCT04526054Not applicable1 country
- Intranasal Insulin for COVID-19-related Smell LossCompletedNCT05461365Phase 31 country
- Vitamin D Nasal Drops in Post COVID-19 ParosmiaStatus unknownNCT05269017Phase 21 country
- Ivermectin Nasal Drops in Post COVID-19 ParosmiaStatus unknownNCT05269030Phase 21 country
- Smell Changes & Efficacy of Nasal TheophyllineCompletedNCT03990766Phase 21 country
- Fluvoxamine to Augment Olfactory Recovery For Long COVID-19 ParosmiaWithdrawnNCT05216614Phase 21 country
- Efficacy and Safety of Phototherapy in the Treatment of Loss of Smell Post Acute Infection of Coronavirus 19Status unknownNCT05177445Not applicable1 country
- The Study of Quadruple Therapy Intranasal Insulin, Zinc, Gabapentin, Ice Cube Stimulation for Post COVID-19 Smell and Taste DysfunctionsStatus unknownNCT05104424Phase 1