The Effectiveness of Steroid Nasal Drops in the Olfactory Cleft Combined With Olfactory Training for Patients With PIOD

This study aims to evaluate the effectiveness of hormone nasal drops in the olfactory cleft combined with olfactory training for treating postinfectious olfactory dysfunction (PIOD). The main questions this clinical trial seeks to answer are: Can the combination of hormone nasal drops and olfactory training improve smell function better than olfactory training alone in PIOD patients? How does this combined treatment work?

NCT Number	NCT07386860
Lead Sponsor	Peking University Third Hospital
Conditions	Smell Dysfunction
Enrollment	100 participants
Start Date	2026-03-01
Primary Completion	2028-12-31 (estimated)
Study Completion	2028-12-31 (estimated)
Updated on ClinicalTrials.gov	2026-02-04