Condition

Olfactory Dysfunction clinical trials and research

• 7Clinical trials
• 8Countries

Newest Olfactory Dysfunction clinical trials

All recruiting trials (7)

• See if smelling tests and guidance improve well-being for people with smell loss

  This study tests whether giving people with smell dysfunction tailored information and guidance after smell testing can improve their mental health and use of care.

  Recruiting Phase 2 Monell Chemical Senses Center · Philadelphia, Pennsylvania · NCT07222891

• Topical PRP vs PRP injection for smell disorders

  This study tests whether topical PRP applied with a carrier or PRP delivered by injection into the nasal area can improve smell in adults with long-standing olfactory dysfunction.

  Recruiting Phase 3 Taipei Veterans General Hospital, Taiwan · Taipei · NCT07151703

• Investigating the effects of endoscopic skull base surgery on smell

  This study tests how endoscopic skull base surgery affects the sense of smell in patients to better understand any smell-related problems that might happen after the surgery.

  Recruiting Universitaire Ziekenhuizen KU Leuven · Leuven, Vlaams-Brabant and 2 other locations · NCT06874426

• Evaluating a new olfactory training device for post-viral smell loss

  This study is testing a new smell training device to see if it helps people who have lost their sense of smell after a virus recover better than a standard device.

  Recruiting Peking University Third Hospital · Beijing · NCT06829706

• Using a new device to improve sense of smell in older adults

  This study is testing a new device to see if it can help older adults improve their sense of smell and overall well-being.

  Recruiting Johns Hopkins University · Baltimore, Maryland · NCT06733636

• Slow-SPEED UK: A Double-Blind Feasibility Trial for a Digitally Supported Activity Program in Adults 40+ with Smell Loss

  We’re testing whether a smartphone-enabled, wearable-guided activity plan can be safely and practically used by adults 40 and over who have a reduced sense of smell and low activity, to see if people can stick with it and accept it.

  Recruiting Queen Mary University of London · London · NCT06600438

• Investigating olfactory dysfunction after COVID-19 infection

  This study is trying to understand why some people still have trouble smelling after recovering from COVID-19 by looking at samples from their noses.

  Recruiting at 6 sites Universitaire Ziekenhuizen KU Leuven · Brussels, Brussels Capital and 6 other locations · NCT06482138

Related topics

Quick answers

How many Olfactory Dysfunction clinical trials are recruiting right now?

7, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.

Where are these trials running?

In 8 countries. The most sites are in United States (2 trials), Belgium (2 trials), Germany (2 trials), Netherlands (1 trial), United Kingdom (1 trial). Each study page lists its sites and which ones are recruiting.

What phases are they in?

Phase 2: 1, Phase 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.

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