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Showing 1–24 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Smell training Clear all
Recruiting Phase 2Phase 3 Interventional

Study of Chemosensory Enhancement Through Neuromodulation Training (SCENT for Long COVID)

NCT05855369
View directory record Official record
Conditions
Smell Dysfunction, Olfactory Disorder, Long COVID
Interventions
Trigeminal Nerve Stimulation (TNS), Active Smell Training (ST), Placebo Smell Training (PBO)
Device · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional

At-Home Olfactory Training

NCT03611673
View directory record Official record
Conditions
Olfactory Disorder
Interventions
Smell Test
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 19, 2023 · Synced Sep 6, 2026, 10:03 AM EDT
Recruiting Not applicable Interventional

Scents of Progress: Leveraging a Novel Device for Olfactory Training in Older Adults

NCT06733636
View directory record Official record
Conditions
Olfactory Dysfunction, Smell Loss, Anosmia, Hyposmia
Interventions
Sudoku Puzzles, ScentCare (Olfactory Training Device)
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
60 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Perceptual Retraining to Reduce Suicide Risk

NCT02845700
View directory record Official record
Conditions
Perceptual Olfactory Bias
Interventions
Perceptual Retraining Treatment, Sham Neutral training
Behavioral
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 60 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
2
States / cities
Tallahassee, Florida • New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Jan 13, 2019 · Synced Sep 6, 2026, 10:03 AM EDT
Enrolling by invitation Not applicable Interventional

Olfactory Training in Various Populations

NCT06115291
View directory record Official record
Conditions
Olfactory Disorder, Smell Disorder, Traumatic Brain Injury, Concussion, Brain
Interventions
Smell Test
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional

What the Nose Knows: Hedonic Capacity, Psychosocial Interventions and Outcomes in Schizophrenia

NCT05282186
View directory record Official record
Conditions
Schizophrenia
Interventions
Cognitive Enhancement Therapy, Social Skills Training
Behavioral
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 9, 2025 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional

Visual-OLfactory Training in Participants With COVID-19 Resultant Loss of Smell

NCT04710394
View directory record Official record
Conditions
Anosmia, Covid19, Ageusia, Hyposmia, Hypogeusia, SARS-CoV-2 Infection, COVID-19 Pandemic
Interventions
Smell Training
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 20, 2022 · Synced Sep 6, 2026, 10:03 AM EDT
Recruiting Phase 2 Interventional

Boosting Olfactory and Sensory Training Study (BOOST)

NCT07221123
View directory record Official record
Conditions
HIV (Human Immunodeficiency Virus)
Interventions
Conventional Smell Training Group, Scented Marker Group
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
40 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Withdrawn Phase 2 Interventional

Coronavirus Smell Therapy for Anosmia Recovery

NCT04422275
View directory record Official record
Conditions
Anosmia
Interventions
Budesonide, High-Concentration Essential Oil, Placebo, Low-Concentration Essential Oil
Drug · Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 1, 2021 · Synced Sep 6, 2026, 10:03 AM EDT
Recruiting Not applicable Interventional

Interoceptive Mechanisms of Body Image Disturbance in Anorexia Nervosa

NCT06332963
View directory record Official record
Conditions
Anorexia Nervosa, Body Image Disturbance, Interoception
Interventions
Floatation-REST, IFT, EFT
Behavioral
Lead sponsor
Laureate Institute for Brain Research, Inc.
Other
Eligibility
13 Years to 50 Years · Female only
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Sep 25, 2025 · Synced Sep 6, 2026, 10:03 AM EDT
Not listed Phase 2 Interventional

Computerized Chemosensory-Based Orbitofrontal Cortex (CBOT) for Opioid Use Disorder

NCT04850664
View directory record Official record
Conditions
Opioid Use Disorder, Moderate, Opioid Use Disorder, Severe, Withdrawal Symptoms, Craving, Negative Affectivity
Interventions
CBOT + TAU, Sham + TAU
Drug
Lead sponsor
Evon Medics LLC
Industry
Eligibility
18 Years to 70 Years
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 5, 2021 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Steroid Nasal Irrigation for Flavor Evaluation and Detection Study

NCT02985515
View directory record Official record
Conditions
Olfactory Disorder
Interventions
Smell training
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 3, 2022 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Phase 1 Interventional

Development and Evaluation of Computerized Chemosensory Based Orbitofrontal Networks Training for Treatment of Pain

NCT06218407
View directory record Official record
Conditions
Chronic Pain, Low Back Pain
Interventions
Computerized Chemosensory-Based Orbitofrontal Cortex Training (CBOT) short burst paradigm, Computerized Chemosensory-Based Orbitofrontal Cortex Training (CBOT) long burst paradigm, Computerized Chemosensory-Based Orbitofrontal Cortex Training plus beta caryophyllene (CBOT-Plus), Computerized Chemosensory-Based Orbitofrontal Cortex Training (CBOT)
Combination Product
Lead sponsor
Evon Medics LLC
Industry
Eligibility
18 Years to 85 Years
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 22, 2024 · Synced Sep 6, 2026, 10:03 AM EDT
Recruiting Phase 2 Interventional

Study of Chemosensory Enhancement Through Neuromodulation Training (SCENT): Open Label

NCT07689773
View directory record Official record
Conditions
Olfactory Impairment
Interventions
Trigeminal Nerve Stimulation-enhanced Smell Training
Combination Product
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Cognitive and Immunologic Profiles of Patients With Olfactory Dysfunction After Smell Training

NCT07681973
View directory record Official record
Conditions
Smell Loss, Chronic Rhinosinusitis (CRS)
Interventions
Smell Training
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional Results available

Acupuncture Therapy for COVID-Related Olfactory Loss

NCT04952389
View directory record Official record
Conditions
Olfactory Dysfunction, COVID-19
Interventions
Acupuncture Therapy, Budesonide, Olfactory Training
Device · Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 11, 2024 · Synced Sep 6, 2026, 10:03 AM EDT
Not listed Phase 2 Interventional

Development and Evaluation of Computerized Olfactory Training Program for Cognitive Decline in Early Alzheimer's Disease

NCT05122598
View directory record Official record
Conditions
Mild Cognitive Impairment, Early Alzheimer's Disease, Memory Impairment
Interventions
COT, Sham
Drug
Lead sponsor
Evon Medics LLC
Industry
Eligibility
55 Years to 95 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
3
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 16, 2022 · Synced Sep 6, 2026, 10:03 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Treatment of Pediatric Patients That Lost Sense of Smell Due to COVID-19

NCT04964414
View directory record Official record
Conditions
Dysosmia, Anosmia, Covid19
Interventions
Smell Retraining, Budesonide
Other · Drug
Lead sponsor
Amanda Stapleton
Other
Eligibility
6 Years to 21 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 12, 2024 · Synced Sep 6, 2026, 10:03 AM EDT
Recruiting Not applicable Interventional

Olfactory Training in Mild Cognitive Impairment

NCT06825403
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Olfactory Memory Training, Visual Memory Training
Behavioral
Lead sponsor
Jeffrey Motter
Other
Eligibility
55 Years to 89 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Active, not recruiting Phase 2 Interventional

Sodium Citrate in Smell Retraining for People With Post-COVID-19 Olfactory Dysfunction

NCT06204432
View directory record Official record
Conditions
Long Haul COVID-19, Post-Acute COVID-19 Syndrome, Anosmia, Olfaction Disorders
Interventions
Sodium Citrate, Normal Saline, Olfactory Training Kit - "The Olfactory Kit, by AdvancedRx"
Drug · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 19, 2025 · Synced Sep 6, 2026, 10:03 AM EDT
Recruiting Not applicable Interventional

Olfactory Biopsies

NCT07021040
View directory record Official record
Conditions
Alzheimer Disease, Smell Loss, Smell Dysfunction
Interventions
olfactory testing, Odor stimulation, Olfactory biopsy
Diagnostic Test · Other · Procedure
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Terminated Not applicable Interventional

Olfactory Training in Improving Sense of Smell After Radiation Therapy in Patients With Paranasal Sinus or Nasopharyngeal Cancer

NCT03049358
View directory record Official record
Conditions
Stage 0 Nasopharyngeal Carcinoma, Stage 0 Paranasal Sinus Cancer, Stage I Nasopharyngeal Carcinoma, Stage I Paranasal Sinus Cancer, Stage II Nasopharyngeal Carcinoma, Stage II Paranasal Sinus Cancer, Stage IIA Nasopharyngeal Carcinoma, Stage IIB Nasopharyngeal Carcinoma, Stage III Nasopharyngeal Carcinoma, Stage III Paranasal Sinus Cancer, Stage IV Nasopharyngeal Carcinoma, Stage IV Paranasal Sinus Cancer, Stage IVA Nasopharyngeal Carcinoma, Stage IVA Paranasal Sinus Cancer, Stage IVB Nasopharyngeal Carcinoma, Stage IVB Paranasal Sinus Cancer, Stage IVC Nasopharyngeal Carcinoma, Stage IVC Paranasal Sinus Cancer
Interventions
Physiologic Testing, Quality-of-Life Assessment, Sham Intervention, Therapeutic Procedure, rose essential oil, lemon essential oil, clove essential oil, eucalyptus essential oil, canola oil placebo
Other · Procedure
Lead sponsor
Stanford University
Other
Eligibility
19 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Sep 6, 2026, 10:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Chemosensory Dysfunction and Recovery in Endoscopic Endonasal Skull Base Surgery

NCT05912881
View directory record Official record
Conditions
Anosmia, Skull Base Neoplasms
Interventions
Olfactory training, Placebo training
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Sep 6, 2026, 10:03 AM EDT
Not listed Phase 2 Interventional

Enhanced Digital-Chemosensory-Based Olfactory Training for Remote Management of Substance Use Disorders

NCT06434818
View directory record Official record
Conditions
Substance Use Disorders, Opioid Use Disorder, Alcohol Use Disorder, Cocaine Use Disorder, Methamphetamine-dependence
Interventions
EDITOR (CBOT with olfactory stimulants, OFC tasks & remote monitoring of treatment compliance), CBOT with olfactory stimulants & OFC tasks, CBOT Sham
Combination Product
Lead sponsor
Evon Medics LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
3
States / cities
Washington D.C., District of Columbia • Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated May 29, 2024 · Synced Sep 6, 2026, 10:03 AM EDT