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ClinicalTrials.gov public records Last synced May 22, 2026, 12:27 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 54 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Anosmia Clear all
Recruiting Not applicable Interventional
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
250 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 2, 2025 · Synced May 22, 2026, 12:27 AM EDT
Completed Not applicable Interventional
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 May 22, 2026, 12:27 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Olfactory Disorder, Olfaction Disorders, Olfactory Nerve Injuries, Olfactory Nerve Disorder, Olfactory Nerve Diseases, Covid19, Post-Viral Disorder
Interventions
Injection into olfactory cleft
Procedure
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
San Diego, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2023 · Synced May 22, 2026, 12:27 AM EDT
Completed Not applicable Interventional
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 May 22, 2026, 12:27 AM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Anosmia, Head Trauma
Interventions
N Acetyl Cysteine, Placebo oral capsule
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced May 22, 2026, 12:27 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
COVID-19
Interventions
theophylline, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 19, 2025 · Synced May 22, 2026, 12:27 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
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 10, 2012 · Synced May 22, 2026, 12:27 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Food Intake
Interventions
Placebo spray, Diltiazem
Other · Drug
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Dec 17, 2015 · Synced May 22, 2026, 12:27 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Olfactory Disorder, Anosmia, Viral Infection, Theophylline Causing Adverse Effects in Therapeutic Use, Smell Disorder
Interventions
Theophylline, Saline Nasal
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 30, 2022 · Synced May 22, 2026, 12:27 AM EDT
Recruiting Not applicable Interventional
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 May 22, 2026, 12:27 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Hyposmia
Interventions
CYR-064
Combination Product
Lead sponsor
Cyrano Therapeutics, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
14
States / cities
Colorado Springs, Colorado • Boca Raton, Florida • Plantation, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced May 22, 2026, 12:27 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
50 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 28, 2017 · Synced May 22, 2026, 12:27 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 19, 2012 · Synced May 22, 2026, 12:27 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Cognitive Function
Interventions
olfactory enrichment (essential oils)
Other
Lead sponsor
University of California, Irvine
Other
Eligibility
60 Years to 85 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Mar 23, 2023 · Synced May 22, 2026, 12:27 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Covid19, Anosmia, Olfactory Disorder, Covid-19 Pandemic, SARS-CoV-2 Infection, Hyposmia, Ageusia, Hypogeusia
Interventions
Theophylline Powder, Placebo Comparator
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 23, 2023 · Synced May 22, 2026, 12:27 AM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment, Delirium, Dementia, Amnestic, Cognitive Disorders
Interventions
Donepezil
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
55 Years to 95 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 12, 2020 · Synced May 22, 2026, 12:27 AM EDT
Active, not recruiting Phase 2 Interventional
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 May 22, 2026, 12:27 AM EDT
Not listed Phase 4 Interventional
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Rasagiline, Placebo
Drug
Lead sponsor
The Parkinson's Institute
Other
Eligibility
Up to 90 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Sunnyvale, California
Source: ClinicalTrials.gov public record
Updated Dec 1, 2013 · Synced May 22, 2026, 12:27 AM EDT
Not listed Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Sequelae of; Infection, Post Infection Glomerulonephritis, Post-Infectious Peripheral Neuralgia, Post-Infectious Disorder (Disorder), Post-Infectious Arthritis, Post-Infectious Polyneuritis, Post-Infectious Parkinsonism, Post-Infectious Hypothyroidism, Post Infectious Osteoarthritis, Anxiety Disorders, Depression, Depression, Anxiety, Depression, Bipolar, Insomnia, GERD, Gastro Esophageal Reflux, Hepatitis, Glomerulonephritis
Interventions
PurWet, FurFat, PurApo, PurPhl, PurClo, PurInf, Smoliv
Combination Product
Lead sponsor
All Natural Medicine Clinic, LLC
Other
Eligibility
Not listed
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated May 25, 2021 · Synced May 22, 2026, 12:27 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Drug Abuse
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 4, 2019 · Synced May 22, 2026, 12:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Opioid Dependence, Obesity
Interventions
Sniffin' Sticks Odor Identification and Hedonic Scale, Sucrose Taste Preference Assessment, Food Preferences Task, Progressive Ratio (PR) Task, Clinical Electrophysiology, Standardized Meal and Hunger and Satiety Ratings
Behavioral · Procedure · Dietary Supplement
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 60 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 15, 2020 · Synced May 22, 2026, 12:27 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Long COVID, Long Covid19, Post-COVID-19 Syndrome, Post Acute COVID-19 Syndrome, Dysautonomia, Anosmia, Dysgeusia, Brain Fog, Muscle Pain, Shortness of Breath, Dizziness, Fatigue Post Viral, Cough, Menstrual Cycle Abnormal, Pain
Interventions
Stellate Ganglion Block
Procedure
Lead sponsor
Metamorphosis LTD
Other
Eligibility
Not listed
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Cañon City, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 12, 2023 · Synced May 22, 2026, 12:27 AM EDT
Recruiting Not applicable Interventional
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 – 2028
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 23, 2025 · Synced May 22, 2026, 12:27 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Post Acute Sequelae Covid-19 Hyposmia
Interventions
Beclomethasone, Placebo, Microsponge
Drug · Other · Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced May 22, 2026, 12:27 AM EDT