Condition
Smell Dysfunction clinical trials and research
As of November 12, 2026, Find a Trial lists 4 Smell Dysfunction clinical trials that are recruiting, at sites in 3 countries (most in United States (2), Belgium (1), Hong Kong (1)). By phase: Phase 2/3 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 4Clinical trials
- 3Countries
Newest Smell Dysfunction clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Collecting small nasal tissue samples to examine smell-sensing cells | — | Durham, North Carolina | Recruiting | Jun 13, 2025 |
| Registry for patients with smell and taste disorders | — | Leuven, Vlaams-Brabant | Recruiting | Jun 13, 2024 |
| Improving smell function in long COVID patients through training and stimulation | Phase 2/3 | Charleston, South Carolina | Recruiting | May 11, 2023 |
| Olfactory training for patients with smell disorders in Hong Kong | — | Hong Kong | Recruiting | May 6, 2022 |
All recruiting trials (4)
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Collecting small nasal tissue samples to examine smell-sensing cells
This project will collect small nasal tissue samples to test how smell-sensing cells work in people with normal smell, smell loss, or Alzheimer's.
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Registry for patients with smell and taste disorders
This study is trying to understand how common smell and taste problems are in people from Belgium and Flanders, especially after COVID-19, by having participants take tests and answer questions about their experiences.
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Improving smell function in long COVID patients through training and stimulation
This study is testing two at-home treatments to see if they can help people with long COVID regain their sense of smell and possibly improve other symptoms.
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Olfactory training for patients with smell disorders in Hong Kong
This study is testing if a special smell training program can help people in Hong Kong with smell disorders feel better and improve their sense of smell.
Related topics
Quick answers
How many Smell Dysfunction clinical trials are recruiting right now?
4, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 3 countries. The most sites are in United States (2 trials), Belgium (1 trial), Hong Kong (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 2/3: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.