Clinical trials: Olfaction, open to volunteers
To Evaluate the Main Effects of Varying Auditory Stimuli, To Evaluate the Main Effects of Varying Olfactory Stimuli
Effects of a Multisensory VR Experience on Stress and User Experience
This study explicitly tests a multisensory virtual reality experience that combines visual, auditory, and olfactory channels to modulate the stress response in young adults.
- Trial name
- NCT07395830
- Testing
- Relaxing aroma and state of stress/calm
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Universidad de Zaragoza
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
Mother Who Has Given Birth to a Singleton Newborn, Mother-newborn Dyad
Olfactory Communication in the First Days of Life: From Chemical Mechanisms to Improved Breastfeeding
For a newborn, locating and latching onto the mother's breast is the foundational social interaction. This pivotal moment not only influences the newborn's survival but also determines the mother's physiological (lactation) and…
- Conditions
- Mother Who Has Given Birth to a Singleton Newborn, Mother-newborn Dyad, Singleton Newborn
- Trial name
- OD-ALL (NCT07616076)
- Testing
- Chemical description of the scent of the breast or a newborn, Breast secretion samples, The newborn and its role in colostrum secretion
- Where
- France
- Volunteers
- 364 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire Dijon
Alzheimer s Disease, Mild Cognitive Impairment (MCI)
Crownlands Observing Progression With Neurons Study
The CROWN-I Study is an observational study to learn about molecular features of Alzheimer's disease (AD) and mild cognitive impairment (MCI).
- Trial name
- CROWN-I (NCT07611396)
- Where
- United States
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Crownlands
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)
Dysphagia, Stroke
Changes in Sensitivity, Taste and Smell in Stroke Patients
This study evaluates changes in swallowing using endoscopic swallowing studies and measuring of pharyngeal sensitivity, taste and smell in stroke patients.
- Trial name
- 5S (NCT03240965)
- Testing
- FEES (flexible endoscopic evaluation of swallowing), Sensitivity threshold, Taste-/smell-test
- Where
- Germany
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Giessen
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)
Kallmann Syndrome, Hypogonadotropic Hypogonadism
Genetics of Reproductive Disorders (Including Kallmann Syndrome) and Cleft Lip and/or Palate
The purpose of this study is to explore the genetic basis of reproductive disorders and cleft lip and/or palate.
- Conditions
- Kallmann Syndrome, Hypogonadotropic Hypogonadism, Hypothalamic Amenorrhea, Polycystic Ovarian Syndrome
- Trial name
- NCT01601171
- Where
- Switzerland
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire Vaudois
Anosmia
Efficacy of Platelet-rich Plasma in Management of Anosmia
Olfactory dysfunction is a prevalent disorder that affects up to 20% of the general population and has significant effects on a person's quality of life as well as increased morbidity and mortality (Croy I et al., 2014;Nordin S…
- Trial name
- NCT06930248
- Testing
- Platelet rich plasma injection
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Sohag University
Chronic Rhinosinusitis With Nasal Polyps (CRSwNP)
Upper Airway Inflammation and Olfaction: Mechanisms of Loss and Recovery
The goal of this clinical trial is to understand the mechanisms leading to olfactory dysfunction (OD) in chronic rhinosinusitis (CRS).
- Trial name
- IMMUNODOR (NCT06776042)
- Testing
- Nasal brushing of the olfactory cleft, Smell testing
- Where
- Belgium
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Cliniques universitaires Saint-Luc- Université Catholique de Louvain
Nicotine Dependence
Smart Olfaction App to Reduce Relapse
The proposed project aims to refine and test a novel biobehavioral smoking cessation intervention that integrates the strategic application of olfactory stimulation to reduce cigarette craving with an established smartphone-based…
- Trial name
- SOARR (NCT07007195)
- Testing
- Ad Libitum Use followed by Instructed Use of the Inspire Device, Instructed Use followed by Ad Libitum Use of the Inspire Device, Smart-T Smoking Cessation App with the Inspire Device Condition
- Where
- United States
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- University of Houston
Central Compartment Atopic Disease (CCAD)
Development of A Multi-section Olfactory Cleft Opacity Staging System in Patients With CCAD
This study aims to develop a modified CT scoring system to evaluate the association between olfactory cleft obstruction patterns and olfactory dysfunction in patients with central region atopic disease (CCAD).
- Trial name
- NCT07380945
- Testing
- Computer Tomography
- Where
- China
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Anosmia
Investigating the Efficacy of OMT to Recover Olfactory Perception After COVID-19
One of the most widespread symptoms of COVID-19 is loss of the sense of smell. There are very few treatments for helping individuals recover their sense of smell.
- Trial name
- NCT06766279
- Testing
- Osteopathic Manipulative Treatment
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Burrell College of Health Sciences
Parkinson´s Disease, REM Sleep Behavior Disorder (iRBD)
The Swedish BioFINDER Sleep Study
BioFINDER-Sleep study was established in 2021 and will include patients with early Parkinson´s disease (PD) and persons with iRBD to provide essential insights into the underlying mechanisms of the progressive neurodegenerative…
- Conditions
- Parkinson´s Disease, REM Sleep Behavior Disorder (iRBD), Lewy Body Disease, Synucleinopathy
- Trial name
- NCT07533799
- Testing
- Dopamine transporter PET scan with [18F]FE-PE2I, Magnetic resonance imaging (MRI), [123I] MIBG scintigraphy of the heart
- Where
- Sweden
- Volunteers
- 650 people, healthy volunteers welcome
- Sponsor
- Skane University Hospital
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)
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
Multiple Sclerosis
Olfactory and Trigeminal Functions in Patients With Multiple Sclerosis: Case-control Study
The sensation of smell is influenced by the somatosensory and chemesthetic sensati¬ons of the nose: for example, the cooling sensation of menthol or the prickle of carbon dioxide from carbonated drinks.
- Trial name
- NCT06020937
- Testing
- TDI, Trigeminal Test, Cognitive Evaluation by Montreal Cognitive Assessment
- Where
- Italy
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Catania
Olfactory Dysfunction
Olfactory Dysfunction in Aging Adults
This prospective longitudinal cohort study will enroll adults aged 50 years and older to characterize olfactory dysfunction in aging.
- Trial name
- NCT07660887
- Testing
- Clinical and Biomarker Assessments
- Where
- United States
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Olfactory Dysfunction, Wellbeing
Impact of Smell Testing on Health Outcomes
Smell dysfunction is frequent yet neglected. The sense of smell plays a crucial role in signaling disease, safety, and overall quality of life.
- Trial name
- NCT07222891
- Testing
- Patient-centered information and education
- Where
- United States
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Monell Chemical Senses Center
Alcohol Use Disorder
Individual Variations of Taste and Smell Perception in Alcohol Use Disorder (AUD)
Background: Alcohol use disorder (AUD) is the most common substance use disorder in the world. Long-term AUD can affect a person s sense of taste and smell.
- Trial name
- NCT05677321
- Where
- United States
- Volunteers
- 475 people, healthy volunteers welcome
- Sponsor
- National Institute on Alcohol Abuse and Alcoholism (NIAAA)