Actively Recruiting
Olfactory Training on Smell Dysfunction Patients in HK
Led by Pamela Youde Nethersole Eastern Hospital · Updated on 2025-06-03
80
Participants Needed
1
Research Sites
260 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
* Causes of olfactory dysfunction can be classified into conductive and sensorineural causes. * Conductive causes are mainly due to structural nasal problem, which can be treated by nasal surgery * Sensorineural causes included post-infection, post-head injury, post Head and Neck irradiation and other central nervous system diseases. * Olfactory Training is well established treatment for sensorineural olfactory dysfunction in foreign countries. * Olfactory Training by neurological chemosensory stimulation using aromatic substances delivered via electronic portable aromatic rehabilitation (EPAR) diffuser was proved to be effective treatment in COVID-19 related olfactory dysfunction in recent Hong Kong study. * However, there is a lack of local study on the effect of Olfactory Training in other non-COVID-19 sensorineural causes of olfactory dysfunction in Hong Kong population.
CONDITIONS
Official Title
Olfactory Training on Smell Dysfunction Patients in HK
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Olfactory dysfunction lasting more than 6 months and less than 5 years
- Age between 18 and 70 years
You will not qualify if you...
- History of significant head injury (fracture, intracerebral hemorrhage)
- History of brain surgery
- History of nasal surgery
- Active nasal disease
- Active neurological disease
- Poor premorbid status or non-communicable patients
- Mentally incompetent patients
- Younger than 18 years old
- Pregnancy
- Hypersensitivity to the aromatic substances used in the study
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Pamela Youde Nethersole Eastern Hospital
Hong Kong, Hong Kong
Actively Recruiting
Research Team
K
Kai Chuen Fergus Wong, FRCSEd(ORL)
CONTACT
K
Ka Chung Kwan, FRCSEd(ORL)
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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