Clinical trials: Olfaction Disorders
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)
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
Cystic Fibrosis in Children, Cystic Fibrosis
Sinus Disease in Young Children With Cystic Fibrosis
This is a prospective, observational study examining the impact of highly effective cystic fibrosis transmembrane conductance regulator (CFTR) modulators on chronic rhinosinusitis (CRS) and olfactory dysfunction (OD) in young…
- Conditions
- Cystic Fibrosis in Children, Cystic Fibrosis, Chronic Rhinosinusitis (Diagnosis), Olfactory Disorder
- Trial name
- NCT06191640
- Testing
- Ivacaftor or elexacaftor/tezacaftor/ivacaftor
- Where
- 6 sites in United States
- Volunteers
- 80 people
- Sponsor
- University of California, Los Angeles
Olfactory Impairment
Study of Chemosensory Enhancement Through Neuromodulation Training (SCENT): Open Label
Smell dysfunction significantly impacts quality of life and safety, with limited effective treatments. This open-label study evaluates the preliminary efficacy of combining non-invasive trigeminal nerve stimulation (TNS) with…
- Trial name
- SCENT-OL (NCT07689773)
- Testing
- Trigeminal Nerve Stimulation-enhanced Smell Training
- Where
- United States
- Volunteers
- 60 people
- Sponsor
- Medical University of South Carolina
Hyposmia, COVID-19
Olfactory Training as a Treatment for Olfactory Dysfunction Post COVID-19
Olfactory dysfunction is a defining symptom of COVID-19 infection. Studies have demonstrated improved olfaction in patients with post infectious olfactory dysfunction after an olfactory training (OT).
- Conditions
- Hyposmia, COVID-19, Parosmia, Anosmia
- Trial name
- OTTODC19 (NCT05384561)
- Testing
- Smell training
- Where
- Canada
- Volunteers
- 70 people
- Sponsor
- Université du Québec à Trois-Rivières
Smell Dysfunction
Effects of Isotretinoin on Smell
Isotretinoin is a common medicine used to treat moderate to severe acne. It often causes dryness of the skin and the inside of the nose.
- Trial name
- NCT07309341
- Testing
- isotretinoin
- Where
- Turkey (Türkiye)
- Volunteers
- 54 people
- Sponsor
- Uşak University
Olfactory Disorder, Smell Disorder
Olfactory Training in Various Populations
To date, there is no validated pharmacotherapy for olfactory disorders. Interestingly, olfactory training - the intentional exposure to odorants for the purposes of retraining the sense of smell - has shown success with as many…
- Conditions
- Olfactory Disorder, Smell Disorder, Traumatic Brain Injury, Concussion, Brain
- Trial name
- NCT06115291
- Testing
- Smell Test
- Where
- United States
- Volunteers
- 250 people
- Sponsor
- University of Kansas Medical Center
Alzheimer Disease, Smell Loss
Olfactory Biopsies
This research study aims to investigate the function of the olfactory lining in the nasal cavity and its potential alterations in both healthy and diseased conditions. The olfactory lining is involved in the sense of smell.
- Conditions
- Alzheimer Disease, Smell Loss, Smell Dysfunction
- Trial name
- NCT07021040
- Testing
- olfactory testing, Odor stimulation, Olfactory biopsy
- Where
- United States
- Volunteers
- 125 people
- Sponsor
- Duke University
Autism, Smell Dysfunction
Ultramicronized Palmitoylethanolamide for Smell, Taste in Children With Autism Spectrum Disorder.
Autism Spectrum Disorder (ASD) is frequently associated with atypical sensory processing across visual, auditory, olfactory, and gustatory domains, variably affecting quality of life and requiring personalized treatment.
- Conditions
- Autism, Smell Dysfunction, Taste Alterations, Sensorial Disturbance
- Trial name
- SmeTasAu (NCT07631455)
- Testing
- supplement (Paidinil® HD, Epitech Group SpA, Saccolongo, Padova, Italy) containing 12% umPEA, Lactobacillus and Omega Fatty acids
- Where
- Italy
- Volunteers
- 80 people
- Sponsor
- University of Campania Luigi Vanvitelli
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
Smell Dysfunction, Olfactory Disorder
Study of Chemosensory Enhancement Through Neuromodulation Training (SCENT for Long COVID)
Persistent smell loss that can include diminished or distorted smell function is a common symptom of long COVID syndrome. There are limited treatment options for long COVID-related smell loss.
- Conditions
- Smell Dysfunction, Olfactory Disorder, Long COVID
- Trial name
- NCT05855369
- Testing
- Trigeminal Nerve Stimulation (TNS), Active Smell Training (ST)
- Where
- United States
- Volunteers
- 145 people
- Sponsor
- Medical University of South Carolina
Anosmia, Parosmia
Multimodal Chewing Gum Flavour Training to Aid Flavour Perception Recovery - a Pilot Study.
Olfactory training is developed for people who have partly or completely lost their sense of smell (olfactory dysfunction). Participants expose themselves to odours twice daily for usually 12 weeks or longer.
- Conditions
- Anosmia, Parosmia, Phantosmia, Dysgeusia
- Trial name
- FITS (NCT07498062)
- Testing
- Flavour impairment training using chewing gum group (FIT), Olfactory training group (OT), Waiting list control group
- Where
- United Kingdom
- Volunteers
- 30 people
- Sponsor
- University of Nottingham
Taste Alterations, Smell Disorder
Adaptation Strategies for Coping With the Impact of Sensory Alterations on Eating Behavior in Children With Cancer: A Qualitative Study From the Perspective of Children and Parents
Childhood cancer is a serious and life-changing disease that affects thousands of children every year worldwide. In addition to the disease itself, cancer treatments such as chemotherapy often cause difficult side effects.
- Conditions
- Taste Alterations, Smell Disorder, Eating Behavior Changes
- Trial name
- QUALISENS (NCT07490093)
- Testing
- No Intervention: Observational Cohort
- Where
- France
- Volunteers
- 30 people
- Sponsor
- Centre Leon Berard
Anosmia, Hyposmia
Stellate Ganglion Block for COVID-19-Induced Olfactory Dysfunction
Chronic olfactory dysfunction from the COVID-19 pandemic is a growing public health crisis with up to 1.2 million people in the Unites States affected.
- Conditions
- Anosmia, Hyposmia, Parosmia, Olfactory Disorder
- Trial name
- NCT05445921
- Testing
- Stellate Ganglion Block
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Washington University School of Medicine
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
Smell Dysfunction
The Effectiveness of Steroid Nasal Drops in the Olfactory Cleft Combined With Olfactory Training for Patients With PIOD
This study aims to evaluate the effectiveness of hormone nasal drops in the olfactory cleft combined with olfactory training for treating postinfectious olfactory dysfunction (PIOD).
- Trial name
- PIOD (NCT07386860)
- Testing
- Steroid nasal drops combined with olfactory training
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Peking University Third Hospital
Budesonide, Olfaction Disorders
Trial Evaluating the Efficacy of Local Budesonide Therapy in the Management of Hyposmia in COVID-19 Patients Without Signs of Severity
The initial symptoms described in the first cases of COVID-19 were mainly fever and respiratory signs. Recently, there has been an increase in cases of hyposmia without associated nasal obstruction or rhinorrhea.
- Conditions
- Budesonide, Olfaction Disorders, SARS-CoV-2, Anosmia
- Trial name
- COVIDORL (NCT04361474)
- Testing
- Budesonide Nasal, Physiological serum
- Where
- France
- Volunteers
- 120 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Olfactory Disorder, Taste Disorders
Prospective Registery of Smell/Taste Clinic Ear/Nose/Throat
Smell/taste disorders are common conditions with a significant impact on quality of life. In September 2021, a specific consultation for patients with smell and taste disorders was initiated at the ENT-HNS (ear, nose, and throat…
- Conditions
- Olfactory Disorder, Taste Disorders, Smell Dysfunction, Smell Disorder
- Trial name
- ProspeRo'Scent (NCT06456008)
- Testing
- Standard of care
- Where
- Belgium
- Volunteers
- 500 people
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Obesity, Taste Disorders
The Relationship Between Olfactory and Gustatory Senses, Hedonic Hunger, and Diet Quality After Bariatric Surgery
This cross-sectional observational study investigates the association between changes in olfactory and gustatory senses and hedonic hunger among individuals who have undergone bariatric surgery.
- Conditions
- Obesity, Taste Disorders, Smell Disorder
- Trial name
- NCT07290075
- Testing
- Sleeve Gastrectomy (SG) and Roux-en-Y Gastric Bypass (RYGB)
- Where
- Turkey (Türkiye)
- Volunteers
- 101 people
- Sponsor
- Hanife Köksal
COVID-19-Induced Parosmia
Stellate Ganglion Block for COVID-induced Parosmia
Chronic olfactory dysfunction, both hyposmia and parosmia, from the COVID-19 pandemic is a growing public health crisis with up to 1.2 million people in the United States affected.
- Trial name
- SGB (NCT06253806)
- Testing
- Stellate Ganglion Block
- Where
- United States
- Volunteers
- 48 people
- Sponsor
- Washington University School of Medicine