Clinical trials: Anosmia
HIV, Substance Use Disorder
Olfactory Function and Model-Based Behavior in People Living With HIV and SUD
Background: Human immunodeficiency virus (HIV) infection can affect areas of the brain that control thinking ability. These same areas of the brain also control the sense of smell.
- Trial name
- NCT07637669
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- National Institute on Drug Abuse (NIDA)
Perception, Self
Comparing the Olfactory Perception of a Fragrance-Loaded SpECs Over Time
The human olfactory system plays a crucial role in sensory perception, influencing emotional states, memory, and interpersonal interactions(1).
- Trial name
- NCT07383337
- Testing
- Fragrance
- Where
- Bahrain
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Royal College of Surgeons in Ireland - Medical University of Bahrain
Endonasal Surgery, Endoscopic Sinus Surgery
In Vivo Imaging of the Olfactory Epithelium Using Confocal Laser Endomicroscopy
This research is being done to better characterize the part of the nose that helps people smell. Currently, the only ways to study smell loss mostly rely on how people report it, rather than being able to see the underlying…
- Conditions
- Endonasal Surgery, Endoscopic Sinus Surgery, Olfactory Dysfunction
- Trial name
- NCT07546617
- Testing
- CONVIVO system, Fluorescein injection, USP 10%
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Dartmouth-Hitchcock Medical Center
Obesity
Mechanisms Underlying Individual Variations of Taste and Smell in Obesity
Background: Changes to the sense of taste or smell can change eating behavior. This may contribute to obesity. Researchers want to see how taste and smell perceptions that affect food choices may differ between people with…
- Trial name
- NCT04714892
- Where
- United States
- Volunteers
- 350 people, healthy volunteers welcome
- Sponsor
- National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Respiratory Tract Infection, Smell Disorder
Longitudinal Deep Phenotyping of Central Mechanisms in Dysosmia: A Pilot Study Using Electrobulbogram (EBG), Functional MRI (fMRI), and Diffusion-Weighted Imaging (DWI)
Background: Loss of the sense of smell can seriously affect a person's quality of life. The ability to smell can be damaged by many factors, including illnesses, injuries, and exposure to toxic chemicals.
- Conditions
- Respiratory Tract Infection, Smell Disorder, Influenza, Rhinosinusitis
- Trial name
- NCT07149428
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- National Institute on Deafness and Other Communication Disorders (NIDCD)
Healthy, Olfaction
Olfactory Transcranial Focused Ultrasound
This study investigates the causal effects of low-intensity transcranial focused ultrasound (tFUS) on odor valence perception and odor-elicited avoidance behaviors in healthy adults.
- Trial name
- O-tFUS (NCT07658365)
- Testing
- transcranial focused ultrasound (tFUS)
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Hyposmia
Study of CYR-064 Versus Placebo in Patients.
Randomized, double-blinded, placebo-controlled trial to determine the safety and efficacy of CYR-064.
- Trial name
- NCT06019000
- Testing
- CYR-064
- Where
- 14 sites in United States
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- Cyrano Therapeutics, Inc.
Parkinson Disease
PPMI Clinical - Establishing a Deeply Phenotyped PD Cohort
The Parkinson Progression Marker Initiative (PPMI) is a longitudinal, observational, multi-center natural history study to assess progression of clinical features, digital outcomes, and imaging, biologic and genetic markers of…
- Trial name
- PPMI (NCT04477785)
- Where
- 50 sites in United States, Austria and 10 more
- Volunteers
- 4,500 people, healthy volunteers welcome
- Sponsor
- Michael J. Fox Foundation for Parkinson's Research
Smell Loss, Chronic Rhinosinusitis (CRS)
Cognitive and Immunologic Profiles of Patients With Olfactory Dysfunction After Smell Training
A research study to assess the baseline olfactory function, mental health status, clinical severity, and immunological profile in patients with smell loss.
- Trial name
- CIPOD (NCT07681973)
- Testing
- Smell Training
- Where
- United States
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- The Cleveland Clinic
Obesity & Overweight, Insulin Resistance Syndrome
SENSILINS: Impact of Cephalic Phase Insulin Release Induced by an Environmental Food Odor Stimulus on Glucose Homeostasis According to Insulin Sensitivity Level
This single-center, randomized, single-blind, 2-period crossover interventional study will evaluate whether exposure to a pleasant food odor 10 minutes before a 75 g oral glucose tolerance test (OGTT) modifies glucose homeostasis…
- Trial name
- SENSILNS (NCT07638111)
- Testing
- Pleasant Food Odor Stimulation, Control Environmental Condition
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Obesity, Overweight
The Effects of GLP-1 Receptor Agonists on Chemosensory Function and Ingestive Behavior
The goal of this study is to explore whether of GLP-1 receptor agonist use is associated with differences in taste, smell, food preferences, appetite, food cravings, and responses to food cues in adults.
- Conditions
- Obesity, Overweight, Taste Perception, Olfaction
- Trial name
- NCT07611201
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Purdue University
Smell Dysfunction, Taste Dysfunction
Post-Covid-19 Patients Follow-up Study
Taste, smell, trigeminal and salivary function is impacted in post-COVID-19 patients
- Conditions
- Smell Dysfunction, Taste Dysfunction, Trigeminal Dysfunction, Salivary Dysfunction
- Trial name
- COVID-19 (NCT07571382)
- Testing
- Smell training
- Where
- Norway
- Volunteers
- 176 people, healthy volunteers welcome
- Sponsor
- University of Oslo
Anosmia, Asymptomatic COVID-19
Longitudinal At Home Smell Testing to Detect Infection by SARS-CoV-2
The purpose of this study is to learn more about how to better track smell recovery in people who have been infected with the SARS-CoV-2 virus (which causes COVID-19).
- Conditions
- Anosmia, Asymptomatic COVID-19, COVID-19 Respiratory Infection, Influenza
- Trial name
- NCT05040659
- Testing
- AROMHA Longitudinal Smell Test
- Where
- United States
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Subjective Cognitive Concerns, Mild Cognitive Impairment
Digital Accessible Remote Olfactory Mediated Health Assessments for Preclinical AD
The goal of this study is to objectively test one's sense of smell, called olfaction, in participants with Subjective Cognitive Concerns (SCC), Mild Cognitive Impairment, Mild Behavioral Impairment (MBI), and age-matched…
- Conditions
- Subjective Cognitive Concerns, Mild Cognitive Impairment, Mild Behavioral Impairment, Healthy Aging
- Trial name
- NCT05881239
- Testing
- AROMHA Brain Health Test
- Where
- United States
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Anosmia, Skull Base Neoplasms
Chemosensory Dysfunction and Recovery in Endoscopic Endonasal Skull Base Surgery
The investigators hypothesize that patients undergoing endoscopic endonasal skull base surgery experience clinically meaningful and modifiable disruptions in postoperative chemosensory function and quality of life, and the…
- Trial name
- NCT05912881
- Testing
- Olfactory training
- Where
- United States
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Amyloidosis, Cardiac Amyloidosis
Study of Olfactory Disorders in Patients With Cardiac Amyloidosis
Amyloidosis is a disease caused by the continuous accumulation of fibrillary proteins in the extracellular matrix causing the architecture of different organs to be disrupted. The prevalence of the disease increases with age.
- Conditions
- Amyloidosis, Cardiac Amyloidosis, Olfactory Loss, Hyposmia
- Trial name
- AMYLODOR (NCT04661800)
- Testing
- Sniffin's stick test
- Where
- France
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Depressive Symptoms, Depressive Disorder, Major
Olfactory Training and Emotional State
During the past three decades, researchers have paid particular attention to the study of olfactory disorders in depression. Recent studies have shown that depression is characterized by a change in olfactory and emotional…
- Trial name
- ENOLFEA (NCT03605524)
- Testing
- Sensory training
- Where
- 3 sites in France
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University Hospital, Tours
Coronavirus Infection, Severe Acute Respiratory Syndrome
Study of the Pathogenesis of Olfactory Disorders in COVID-19
This study is a case-control study to characterize the molecular and cellular anomalies of the olfactory epithelium of COVID-19 patients with isolated anosmia, by comparison with the olfactory epithelium of non-infected subjects.
- Conditions
- Coronavirus Infection, Severe Acute Respiratory Syndrome, Sars-CoV2
- Trial name
- COVIDSMELL (NCT04366934)
- Testing
- Nasal swab, Taste and olfactory function evaluation
- Where
- 2 sites in France
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Institut Pasteur
Obesity
The Sense of Small and Inhibition in Obesity
The aim of this research is to verify whether inhibitory control ability is different between a group of individuals with obesity and a group of individuals with normal weight in the presence of olfactory stimuli, different for…
- Trial name
- Smell_OB (NCT05768672)
- Testing
- Experimental Task
- Where
- Italy
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Istituto Auxologico Italiano
Cancer
Sensory Approach of Food Modifications Led by Chemotherapy
The aim of the present study was to evaluate the impact of chemotherapy on sensorial perception in lung cancer patients in comparison to a control group (individuals without lung cancer and chemotherapy treatment).
- Trial name
- ARC-1 (NCT02368509)
- Testing
- Perform sensory tests
- Where
- 3 sites in France
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon