Anosmia
MONDO:0010528Loss of or impaired ability to smell. This may be caused by olfactory nerve diseases; paranasal sinus diseases; viral respiratory tract infections; craniocerebral trauma; smoking; and other conditions.
Also known as: anosmia, anosmia (disease)
35 clinical trials for this condition and its sub-types, 35 tagged with Anosmia itself.
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Sub-types of Anosmia
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Isolated congenital anosmia 0 trials
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Sniffing out COVID: new At-Home smell test could spot infections early
Diagnosis OngoingThis study tests a simple, at-home smell test to see if it can detect COVID-19 infection and track how smell recovers over time. About 1000 adults, including those with known smell loss and healthy volunteers, will use smell cards to rate odor intensity, identification, and discr…
Sponsor: Massachusetts General Hospital • Aim: Diagnosis
Last updated Jun 27, 2026 09:10 UTC
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Sniff your way back: daily scent training may restore lost smell
Symptom relief By invitation onlyThis study tests whether daily exposure to different scents can retrain the sense of smell in 250 adults with smell disorders, including those from traumatic brain injury. Participants will use scented inhaler sticks at home and take smell tests before and after 12 weeks. The goa…
Sponsor: University of Kansas Medical Center • Aim: Symptom relief
Last updated Jun 27, 2026 14:00 UTC
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Brain scans reveal secrets of lost smell
Knowledge-focused By invitation onlyThis study tracks 80 adults with different smell disorders (like total loss, partial loss, or distorted smell) plus healthy volunteers over one year. Researchers use brain scans, smell tests, and questionnaires to see how the brain changes and how smell loss impacts mood and dail…
Sponsor: National Institute on Deafness and Other Communication Disorders (NIDCD) • Aim: Knowledge-focused
Last updated Sep 21, 2026 15:00 UTC