Effect of olfactory training on anosmia of COVID-19

Assessment of the effect of olfactory training on anosmia following COVID-19 infection

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20200629047953N1

Enrollment

Registered

2021-03-17

Start date

2021-04-21

Completion date

Unknown

Last updated

2021-04-26

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

Conditions

Loss of smell, Olfactory Rehabilitation. Anosmia

Interventions

Intervention 1: Intervention group: Patients who have had an olfactory disorder for more than 3 months, are treated with Olfactrin Odor Rehabilitation Spray Package by smelling these sprays twice a da

Eligibility

Sex/Gender

All

Age

18 Years to 60 Years

Inclusion criteria

Inclusion criteria: Smell disorders caused by COVID-19 during Coronavirus pandemia Positive Serology of COVID-19

Exclusion criteria

Exclusion criteria: Diseases causing smell disorders Drugs causing smell disorders Sinonasal anatomical disorders Negative Anti-COVID antibody test

Design outcomes

Primary

Measure	Time frame
Score of Smell Identification Test. Timepoint: Measure theSIT test at the beginning of the study and 90 days after the onset of olfactory rehabilitation. Method of measurement: Iranian SIT.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactMohammadsadegh Zabihidan

Tehran University of Medical Sciences

Sina_Zabihidan@ymail.com+98 21 6634 3352

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026