90 completed, 31 unknown, 23 recruiting, 12 not yet recruiting. 66 Not applicable, 23 Phase 2, 14 Phase 4, 11 Phase 3, 7 Phase 1.
Follow this condition Literature Review of Anosmia trials Research Report on Anosmia
Tick up to 5 trials to compare them side by side (eligibility, arms, endpoints, adverse events) in a Literature Matrix.
| Trial | Phase | Status | Sponsor | Enrollment | Start | Updated |
|---|---|---|---|---|---|---|
| SniffTrain: Effectiveness of Sniff Training in the Treatment of Post-Viral Anosmia Sniff Training Kits - Post-viral Anosmia, Anosmia | Not applicable | Not yet recruiting | University of Virginia | 204 | 2027-01-05 | 2026-10-05 |
| In Vivo Imaging of the Olfactory Epithelium Using Confocal Laser Endomicroscopy CONVIVO system, Fluorescein injection, USP 10% - Endonasal Surgery, Endoscopic Sinus Surgery | Early Phase 1 | Not yet recruiting | Dartmouth-Hitchcock Medical Center | 36 | 2026-11-03 | 2026-10-20 |
| Olfactory Function and Model-Based Behavior in People Living With HIV and SUD HIV, Substance Use Disorder | Recruiting | National Institute on Drug Abuse (NIDA) | 120 | 2026-10-26 | 2026-10-21 | |
| Firefighter's Longitudinal Airway and Respiratory Exposome/Multiome Study (FLARES) Anosmia, Chronic Obstructive Pulmonary Disease | Enrolling by invitation | National Institute of Allergy and Infectious Diseases (NIAID) | 350 | 2026-10-26 | 2026-10-21 | |
| Olfactory Transcranial Focused Ultrasound transcranial focused ultrasound (tFUS) - Healthy, Olfaction | Not applicable | Recruiting | Medical University of South Carolina | 28 | 2026-10-01 | 2026-10-06 |
| Longitudinal Deep Phenotyping of Central Mechanisms in Dysosmia: A Pilot Study Using Electrobulbogram (EBG), Functional MRI (fMRI), and Diffusion-Weighted Imaging (DWI) Respiratory Tract Infection, Smell Disorder | Recruiting | National Institute on Deafness and Other Communication Disorders (NIDCD) | 80 | 2026-10-01 | 2026-10-09 | |
| Artificial Intelligence-based Parkinson's Disease Risk Assessment (AI-PRA) Study Smartwatch and phone app - Parkinson Disease (PD), REM Sleep Behavior Disorder (iRBD) | Not yet recruiting | Queen Mary University of London | 60 | 2026-10-01 | 2026-10-02 | |
| Study of Chemosensory Enhancement Through Neuromodulation Training (SCENT): Open Label Trigeminal Nerve Stimulation-enhanced Smell Training - Olfactory Impairment | Phase 2 | Recruiting | Medical University of South Carolina | 60 | 2026-07-10 | 2026-08-12 |
| Effects of Olfactory Stimuli in Virtual Reality Cue Exposure on Craving and Attentional Bias in Alcohol Use Disorder VR-CE - Alcohol Use Disorder | Not applicable | Not yet recruiting | Charite University, Berlin, Germany | 60 | 2026-07-01 | 2026-06-25 |
| SENSILINS: Impact of Cephalic Phase Insulin Release Induced by an Environmental Food Odor Stimulus on Glucose Homeostasis According to Insulin Sensitivity Level Pleasant Food Odor Stimulation, Control Environmental Condition - Obesity & Overweight, Insulin Resistance Syndrome | Not applicable | Not yet recruiting | Hospices Civils de Lyon | 20 | 2026-06-01 | 2026-06-10 |
| Slow-SPEED UK: A Double-Blind Randomised Feasibility Trial Slow-SPEED app - Hyposmia, Olfactory Dysfunction | Not applicable | Recruiting | Queen Mary University of London | 110 | 2026-05-27 | 2026-06-29 |
| PANDORA: Evaluation of Platelet-rich Plasma in Non-tumoural Odour Disorders: a Descriptive Pilot Study. Autologous Platelet-Rich Plasma (PRP) Injection - Olfactory Dysfunction, Post-traumatic Olfactory Dysfunction | Not applicable | Not yet recruiting | Hospices Civils de Lyon | 30 | 2026-05-01 | 2026-03-20 |
| Personalized Cooking and Nutrition Guidance and Physical Activities Program to Reduce Muscle Loss in Advanced Cancer Oncology Dietitian's Standard of Care, Personalized Culinary and Nutrition Therapy - Cancer, Sarcopenia | Not applicable | Not yet recruiting | Gali Perel | 200 | 2026-04-01 | 2026-04-02 |
| Intranasal Platelet-Rich Plasma With or Without Topical Insulin for Post-Inflammatory Anosmia Intranasal PRP Plus Topical Insulin, Intranasal PRP Plus Saline (Placebo) - Anosmia, Inflammatory Anosmia | Not applicable | Not yet recruiting | Amin Javer | 20 | 2026-03-30 | 2026-02-03 |
| Feasibility of Integrating Olfactory Stimuli Into Virtual Reality Cue Exposure for Patients With Alcohol Dependence VR Cue-Exposure Including Olfactory Stimuli - Alcohol Dependence | Not applicable | Completed | Charite University, Berlin, Germany | 20 | 2026-03-07 | 2026-10-20 |
| Comparing the Olfactory Perception of a Fragrance-Loaded SpECs Over Time Fragrance - Perception, Self | Not applicable | Not yet recruiting | Royal College of Surgeons in Ireland - Medical University of Bahrain | 10 | 2026-02-15 | 2026-02-05 |
| Efficacy of Non-invasive Neuromodulation Treatments for COVID-19 Sequelae Non invasive neuromodulation therapy, Manual therapy, Placebo with non invasive neuromodulation - Covid-19 Recurrent | Not applicable | Not yet recruiting | Clinica Gema Leon | 104 | 2026-01-01 | 2025-09-18 |
| Cognitive and Immunologic Profiles of Patients With Olfactory Dysfunction After Smell Training Smell Training - Smell Loss, Chronic Rhinosinusitis (CRS) | Not applicable | Recruiting | The Cleveland Clinic | 52 | 2025-12-09 | 2026-07-02 |
| Topical Versus Injection PRP for Olfactory Dysfunction Intranasal Injection of Autologous PRP, Carrier-Assisted Topical Application of Autologous PRP, platelet-rich plasma - Olfactory Dysfunction, Anosmia | Phase 3 | Recruiting | Taipei Veterans General Hospital, Taiwan | 60 | 2025-09-11 | 2026-10-05 |
| Olfactory Training in Mild Cognitive Impairment Olfactory Memory Training, Visual Memory Training - Mild Cognitive Impairment | Not applicable | Recruiting | Jeffrey Motter | 30 | 2025-08-07 | 2026-09-04 |
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COVID-19 (57) · Olfaction Disorders (37) · Ageusia (12) · Dysgeusia (9) · Parkinson Disease (9) · Taste Disorders (8) · Alzheimer Disease (7) · Cognitive Dysfunction (7) · Post-Acute COVID-19 Syndrome (7) · Obesity (6) · Coronavirus Infections (5) · Depression (5) · Anxiety Disorders (4) · Severe Acute Respiratory Syndrome (4)
Pathological Conditions, Signs and Symptoms (176) · Signs and Symptoms (176) · Nervous System Diseases (175) · Neurologic Manifestations (174) · Sensation Disorders (174) · Olfaction Disorders (139) · Infections (66) · Respiratory Tract Diseases (66) · Lung Diseases (63) · Virus Diseases (63) · Coronaviridae Infections (62) · Nidovirales Infections (62) · RNA Virus Infections (62) · Respiratory Tract Infections (62) · Pneumonia (60)
Olfactory Training (17) · Oils, Volatile (3) · Saline Solution (3) · Sodium Chloride (3) · Theophylline (3) · Acetylcysteine (2) · Adrenal Cortex Hormones (2) · Budesonide (2) · Donepezil (2) · Insulin (2) · Mepivacaine (2) · Odorants (2) · Prednisolone (2) · Smell (2) · Standard of Care (2)
Washington University School of Medicine (9) · Hospices Civils de Lyon (4) · Institut Pasteur (3) · Johns Hopkins University (3) · Massachusetts General Hospital (3) · Medical University of South Carolina (3) · AHS Cancer Control Alberta (2) · Ain Shams University (2) · Centre Hospitalier Universitaire de Nīmes (2) · Charite University, Berlin, Germany (2) · Duke University (2) · Hospital Sultanah Bahiyah (2) · Karolinska Institutet (2) · London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's (2) · Michael J. Fox Foundation for Parkinson's Research (2)
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