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ClinicalTrials.gov public records Last synced Oct 21, 2026, 10:23 AM EDT

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Showing 1–24 of 47 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: olfactory testing Clear all
Completed No phase listed Observational Accepts healthy volunteers

Experiments to Test How and Why the Sense of Smell Differs Between People

NCT00220038
View directory record Official record
Conditions
Specific Anosmias
Interventions
smell tests
Behavioral
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 11, 2012 · Synced Oct 21, 2026, 10:23 AM EDT
Completed Phase 2 Interventional Results available

Phase 2 Study of Bintrafusp Alfa in Recurrent/Metastatic Olfactory Neuroblastoma (BARON).

NCT05012098
View directory record Official record
Conditions
Olfactory Neuroblastoma, Esthesioneuroblastoma, Neoplasm of the Nasal Cavity
Interventions
Bintrafusp alfa/M7824, Ibuprofen, PET scan, CT scan, Tumor tissue biopsy, Brain MRI, Dotate scan, PET FDG scan, Nuclear bone scan, EKG
Drug · Diagnostic Test · Procedure
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 8, 2025 · Synced Oct 21, 2026, 10:23 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Assessing Environmental Factors in Healthcare Facilities in Order to Improve the Experience of Patients, Staff, and the Quality of Imaging Procedures

NCT03456895
View directory record Official record
Conditions
Healthcare Facility Environment - Imaging
Interventions
Light perception, Sound perception, Smell perception, Vibration perception, Voice activation
Other
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 18, 2024 · Synced Oct 21, 2026, 10:23 AM EDT
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Olfactory Dysfunction in Aging Adults

NCT07660887
View directory record Official record
Conditions
Olfactory Dysfunction
Interventions
Clinical and Biomarker Assessments
Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
50 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2032
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Oct 21, 2026, 10:23 AM EDT
Completed Phase 4 Interventional Results available

Olfactory Deficits in MCI as Predictor of Improved Cognition on Donepezil

NCT01845636
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Donepezil, Atropine
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
55 Years to 95 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 9, 2018 · Synced Oct 21, 2026, 10:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

POC Performance Evaluation of LumiraDx SARS-CoV-2 Ag Ultra and SARS-CoV-2 & Flu A/B Tests.

NCT05728970
View directory record Official record
Conditions
SARS-CoV-2, Influenza A, Influenza B, COVID-19
Interventions
LumiraDx SARS-CoV-2 Ag Ultra, LumiraDx SARS-CoV-2 & Flu A/B
Diagnostic Test
Lead sponsor
LumiraDx UK Limited
Industry
Eligibility
Not listed
Enrollment
716 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
10
States / cities
Garden Grove, California • Lomita, California • DeLand, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 21, 2026, 10:23 AM EDT
Recruiting Not applicable Interventional

Virtual Reality and Olfactory Stimuli Multimodal Intervention to Reduce Post-Operative Pain and Anxiety in Patients Undergoing Cardiothoracic Surgery

NCT04912531
View directory record Official record
Conditions
Postoperative Pain, Anxiety Postoperative, Opioid Use
Interventions
Virtual Realty using a Microsoft Hololens, Empatica HR wristband, and EEG, Essence Olfactory Necklace, Bedside Olfaction Device
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 20, 2026 · Synced Oct 21, 2026, 10:23 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 4, 2022 · Synced Oct 21, 2026, 10:23 AM EDT
Completed No phase listed Observational

A Clinical Evaluation of Pine Trees Health Test System Including the Pine Trees Health Reader and COVID-19 Test for Point-of-Care

NCT05107258
View directory record Official record
Conditions
SARS (Severe Acute Respiratory Syndrome), Covid19
Interventions
The Pine Trees Health Test System
Diagnostic Test
Lead sponsor
Pine Trees, Inc.
Industry
Eligibility
6 Years and older
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
3
States / cities
Spring Hill, Florida • Statesville, North Carolina • Redmond, Washington
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Oct 21, 2026, 10:23 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 5, 2019 · Synced Oct 21, 2026, 10:23 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 13, 2026 · Synced Oct 21, 2026, 10:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Biomarkers in Neural Disorders

NCT02761707
View directory record Official record
Conditions
Parkinson's Disease, Alzheimer's Disease, Progressive Supranuclear Palsy, Essential Tremor, Multiple System Atrophy, Drug Induced Parkinson's Disease, Diffuse Lewy Body Disease, Myasthenia Gravis, Spinal Cord Injuries
Interventions
Electrical Brainstem Responses, Olfactory Tests, Visual Deprivation, Peripheral Nerve Stimulation
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 80 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 18, 2019 · Synced Oct 21, 2026, 10:23 AM EDT
Completed No phase listed Observational

Legionnaires' Effect on Smell

NCT03321786
View directory record Official record
Conditions
Legionnaires' Disease
Interventions
The University of Pennsylvania Smell Identification Test (UPSIT)
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
10 participants
Timeline
2017 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 24, 2024 · Synced Oct 21, 2026, 10:23 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Optimization of Blood Levels of 25(OH)-Vitamin D in African Americans

NCT04939792
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Vitamin D, Placebo, Vitamin D + L-cysteine, L-cysteine
Drug
Lead sponsor
Louisiana State University Health Sciences Center Shreveport
Other
Eligibility
18 Years to 65 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Shreveport, Louisiana
Source: ClinicalTrials.gov public record
Updated Jun 8, 2023 · Synced Oct 21, 2026, 10:23 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 13, 2024 · Synced Oct 21, 2026, 10:23 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Digital Accessible Remote Olfactory Mediated Health Assessments for Preclinical AD

NCT05881239
View directory record Official record
Conditions
Subjective Cognitive Concerns, Mild Cognitive Impairment, Mild Behavioral Impairment, Healthy Aging
Interventions
AROMHA Brain Health Test
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 100 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 6, 2026 · Synced Oct 21, 2026, 10:23 AM EDT
Active, not recruiting Phase 1 Interventional

CP101 for the Treatment of Ulcerative Colitis

NCT05852574
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
CP-101, CP-101 + Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Oct 21, 2026, 10:23 AM EDT
Completed No phase listed Observational Results available

Validation of a Rapid Quantitative Test for Loss of Smell in COVID-19 Subjects

NCT04431908
View directory record Official record
Conditions
COVID-19
Interventions
olfactory device
Device
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
1,320 participants
Timeline
2020
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 2, 2021 · Synced Oct 21, 2026, 10:23 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Impact of Smell Testing on Health Outcomes

NCT07222891
View directory record Official record
Conditions
Olfactory Dysfunction, Wellbeing
Interventions
Patient-centered information and education
Behavioral
Lead sponsor
Monell Chemical Senses Center
Other
Eligibility
7 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 21, 2026, 10:23 AM EDT
Completed Not applicable Interventional

Cognitive and Affective Mechanisms Underlying an Olfactory Approach to Modify Cigarette Craving

NCT04902469
View directory record Official record
Conditions
Craving
Interventions
Pleasant Odor, Odor Blank
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 49 Years
Enrollment
232 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 21, 2026, 10:23 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Diagnostic and Prognostic Biomarkers in Parkinson Disease

NCT00653783
View directory record Official record
Conditions
Parkinson Disease, Multiple System Atrophy, Progressive Supranuclear Palsy
Interventions
Not listed
Lead sponsor
The Parkinson Study Group
Network
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2007
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 31, 2008 · Synced Oct 21, 2026, 10:23 AM EDT
Completed Not applicable Interventional

Physiological Investigations of Movement Disorders

NCT01019343
View directory record Official record
Conditions
Parkinson's Disease, Tourette's Syndrome, Tic Disorders, Dystonia, Movement Disorders
Interventions
Transcranial Direct Current Stimulation (tDCS), Eye-tracking Device, Pulsed vibrator, Gait Trainer Treadmill (GTT), Standard psychiatric scales SCID-I, YBOCS and SCI-OBS-lifetime and cognitive scales MMSE and MOCA, iMobility, QMAT, Treadmill Test, Arm Intellistretch Device, Transcranial Sonography (TCS), Behavioral tasks, TMS single/paired pulse, MEG, EEG, MRI techniques, Peripheral Nerve Stimulation, EMG, Trancutaneous spinal direct current stimulation (tsDCS)
Procedure · Device · Other + 1 more
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
1,273 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 21, 2026, 10:23 AM EDT
Completed No phase listed Observational

Clinical Validation of the LumiraDx SARS-CoV-2 & Flu A/B Combo Test

NCT05787444
View directory record Official record
Conditions
SARS-CoV-2, Influenza A, Influenza B, Asymptomatic COVID-19
Interventions
LumiraDx SARS-CoV-2 & Flu A/B
Diagnostic Test
Lead sponsor
LumiraDx UK Limited
Industry
Eligibility
2 Years and older
Enrollment
1,081 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Cullman, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Oct 21, 2026, 10:23 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

A Study Evaluating Potential Screening Tools for Detecting Parkinson Disease

NCT00387075
View directory record Official record
Conditions
Parkinson Disease
Interventions
[123I]β-CIT and SPECT imaging, [123I]β-CIT
Procedure · Drug
Lead sponsor
Institute for Neurodegenerative Disorders
Other
Eligibility
50 Years and older
Enrollment
3,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 29, 2022 · Synced Oct 21, 2026, 10:23 AM EDT