Establishment of olfactory training for Japanese people by comparison with European methods

Establishment of olfactory training for Japanese people by comparison with European methods - Olfactory training for Japanese people

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000040380

Enrollment

240

Registered

2020-06-30

Start date

2020-06-30

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post-viral olfactory dysfunction, Traumatic olfactory dysfunction, Olfactory dysfunction by unknown cause

Interventions

Olfactory training consists of 2 sets of sniffing 4 kinds of odors twice for 15 seconds each. Participants are asked to continue for 9 months. One group is exposed to European style olfactory trai

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with olfactory dysfunction by post-viral, head trauma and unknown cause. They should not have any other neurological symptoms. Enough cognitive function to carry out olfactory training should be required.

Exclusion criteria

Exclusion criteria: Patients with conductive olfactory loss with rhino-sinusitis confirmed by CT scans.

Design outcomes

Primary

Measure	Time frame
Does olfaction improve by Japanese style olfactory training as well as European style? Olfaction should be assessed by Japanese olfactory tests.	—

Countries

Japan

Contacts

Public ContactFumino Okutani

Kochi Medical School Department of Occupational Health

okutanif@kochi-u.ac.jp088-880-2560

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026