Clinical trials: Olfaction Disorders
Olfactory Impairment
The Efficacy of Modified Olfactory Training for Patients With Olfactory Dysfunction
The goal of this clinical trial is to validate the effectiveness of the modified olfactory training device, the main questions it aims to answer are: Is it possible that the device can treat olfactory disorders in adults?…
- Trial name
- NCT06353139
- Testing
- Modified olfactory training device
- Where
- China
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Olfaction Disorders
Study of EEG and Nasal Stimulus in Olfactory Disorders
Neuroscent aims to analyze EEG signals induced by olfactory stimuli in individuals with normal and impaired olfactory functions, with a focus on patients with tinnitus.
- Trial name
- SENSO (NCT06589375)
- Testing
- Sniffin'Sticks
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Congenital Cytomegalovirus Infection
Assesment of Olfactory Disorders and Performance of a New Olfactory Test in Children With Congenital CMV
CMV lesions were found in the olfactory system of children with congenital CMV infection but no study has hitherto examined the impact of congenital CMV infection on olfaction.
- Trial name
- INFECSMELL (NCT02782988)
- Testing
- olfactory tests, otoacoustic emissions (OAE)
- Where
- 2 sites in France
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Institut Pasteur
Parkinson Disease, Parkinsonian Syndrome
A Study of the Sense of Smell in Relatives of Parkinson's Disease Patients
In this study, individuals complete and return a mail survey, specifically a 40 item scratch and sniff smell test.
- Trial name
- NCT00096876
- Where
- United States
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Institute for Neurodegenerative Disorders
COVID-19
α-synuclein Seeding Activity in the Olfactory Mucosa in COVID-19
Loss of the sense of smell is a characteristic feature of COVID-19 and likely related to viral invasion of the olfactory mucosa but is also a prodromal feature of PD.
- Trial name
- NCT05401773
- Testing
- Real-time Quaking-Induced Conversion (RT-QuIC)
- Where
- Austria
- Volunteers
- 188 people, healthy volunteers welcome
- Sponsor
- Medical University Innsbruck
Anxiety State
The Effect of Lavender Smell on Anxiety
Esophagogastroduodenoscopy and colonoscopy are invasive procedures that enable the diagnosis, diagnosis, treatment, biopsy, photo and video recording of the gastrointestinal tract.
- Trial name
- NCT04596904
- Testing
- Lavender oil application group, Distilled water application group
- Where
- Turkey (Türkiye)
- Volunteers
- 124 people, healthy volunteers welcome
- Sponsor
- Eskisehir Osmangazi University
Olfactory Disorder
Steroid Nasal Irrigation for Flavor Evaluation and Detection Study
The purpose of this research study is to examine the efficacy of a 12-week smell training intervention for participants with olfactory dysfunction following an infection of the upper respiratory tract.
- Trial name
- SNIFFED (NCT02985515)
- Testing
- Smell training
- Where
- United States
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
SARS-CoV Infection, COVID-19
Malaysian COVID-19 Anosmia Study (Phase 2) - A Nationwide Multicentre Case-Control Study
The Malaysian COVID-19 Anosmia Study is a nationwide multicentre observational study to investigate the prevalence and characteristics of olfactory and gustatory/taste disturbances in COVID-19 infection in Malaysia, and to…
- Conditions
- SARS-CoV Infection, COVID-19, Anosmia, Dysgeusia
- Trial name
- NCT04384042
- Testing
- Patient-Reported Online Questionnaire on Olfactory & Taste Disturbances
- Where
- 14 sites in Malaysia
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Hospital Sultanah Bahiyah
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
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
COVID-19, Anosmia
Finding Out if COVID-19 Infection Can be pREdicted by ChAnges in Smell and/or Taste
The FORECAST Study is an observational cohort study looking at two cohorts of patients presenting with COVID-19: a general public cohort, aiming to investigate if new loss or reduced sense of smell and/or taste are early signs of…
- Trial name
- FORECAST (NCT04377815)
- Testing
- General Public cohort
- Where
- 2 sites in United Kingdom
- Volunteers
- 569 people, healthy volunteers welcome
- Sponsor
- University College, London
Alzheimer Disease (AD), Dementia Alzheimer Type
Effects on the Olfactory Epithelium and the Olfactory Nerve From Exposure to Diesel Exhaust
The goal of this study is to study the effect exposure to air pollution and its effect on development of dementia. Does the diesel exhaust change the function of the olfactory system? Have the exposures measurable effects on the…
- Conditions
- Alzheimer Disease (AD), Dementia Alzheimer Type, Air Pollution Exposure
- Trial name
- DINOSE (NCT07237958)
- Testing
- Diesel Exhaust Particles, Filtered air
- Where
- Sweden
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Umeå University
Melanoma, Non-small Cell Lung Cancer (NSCLC)
Taste and Smell Dysfunction in Patients More Than Two Years After Start of Immune Checkpoint Inhibitor Therapy
Background of the study: Immune checkpoint inhibitors (ICIs) are widely used as treatment for multiple cancer types and the number of patients with longterm disease control after ICIs is increasing.
- Conditions
- Melanoma, Non-small Cell Lung Cancer (NSCLC), Urogenital Cancers
- Trial name
- TasteSPICIER (NCT06495008)
- Testing
- no intervention, only questionnaires, saliva collection and taste/smell tests
- Where
- Netherlands
- Volunteers
- 101 people, healthy volunteers welcome
- Sponsor
- University Medical Center Groningen
Anosmia, COVID-19
Effectiveness and Safety of Platelet Rich Plasma (PRP) on Persistent Olfactory Dysfunction Related to COVID-19
Olfactory dysfunction (OD) is a well know symptom of coronavirus disease 2019 (COVID-19), accounting for 48 to 85% of patients. In 1 to 10% of cases, patients develop a chronic olfactory dysfunction (COD,) lasting more than 6…
- Trial name
- NCT05226546
- Testing
- Platelet rich plasma (PRP), olfactory training
- Where
- Belgium
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire Saint Pierre
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
Alzheimer Disease, Late Onset, Mild Cognitive Impairment
Establish Diagnostic and Prognostic Models for Preclinical AD Patients Based on Multimodal MRI, Behavioral, Genetic, and Plasma Biomarkers
To establish the diagnostic and prognostic models that could help the preclinical identification of subjects at higher risk of clinical progression to mild cognitive impairment and dementia based on combined features of baseline…
- Conditions
- Alzheimer Disease, Late Onset, Mild Cognitive Impairment, Subjective Cognitive Decline
- Trial name
- NCT06561906
- Testing
- Multimodal magnetic resonance imaging scanning, behavioral, genetic and plasma biomarker testing
- Where
- China
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
Surgery, Gallbladder
Smell Memory Method for Patients Before Surgery
The research is planned as a randomized controlled experimental at Erzurum Atatürk University Health Application and Research Center.
- Conditions
- Surgery, Gallbladder, Smell
- Trial name
- NCT06414980
- Testing
- Experimental
- Where
- Turkey (Türkiye)
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Ataturk University
Olfactory Impairment
Olfactory Cleft Stenosis and Obstruction on Paranasal Sinus CT Scan in Pre Septo Rhinoplasty Patients Without Respiratory Mucosa Pathology : Normal Variants or Pathologic Findings ?
This retrospective studed included patients referred to our institution between December 2013 and december 2021 for septoplasty or septorhinoplasty. All patients underwent pre operatory paranasal sinus CT scan and olfactory test.
- Trial name
- NCT06082193
- Where
- 2 sites in France
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Central Hospital, Nancy, France
Anxiety State, Symptoms and Signs
The Effect of Olfactory Mental Imagery and Cardiovascular Surgery
This study aims to examine the effect of olfactory mental imagery on physiological parameters, anxiety and symptoms after cardiovascular surgery.
- Conditions
- Anxiety State, Symptoms and Signs, Vital Signs
- Trial name
- NCT06221436
- Testing
- Mental Imagery
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Istanbul Saglik Bilimleri University
Smoking Cessation, Olfactory Disorder
The ESTxENDS Trial- Substudy on Effects of Using Electronic Nicotine Delivery Systems (ENDS) on Olfactory Function
--> This is a substudy of the main ESTxENDS trial (NCT03589989). Olfactory function outcomes should be considered secondary outcomes of the main smoking cessation outcome formulated in NCT03589989.
- Trial name
- ESTxENDS (NCT04617444)
- Testing
- ENDS (vaporizer/e-cig) and smoking cessation counseling, Smoking cessation counseling
- Where
- 5 sites in Switzerland
- Volunteers
- 389 people, healthy volunteers welcome
- Sponsor
- University of Bern