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The Efficacy of Modified Olfactory Training Method for Patients With Post-viral Olfactory Dysfunction

NCT06829706 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 150

Last updated 2025-02-17

No results posted yet for this study

Summary

The goal of this clinical trial is to validate the effectiveness of the modified olfactory training device, the main questions it aims to answer are: Is the modified olfactory training device effective in treating patients with post-viral olfactory dysfunction? Compared to the conventional device, how efficient is the modified olfactory training device for improving olfactory function?

Conditions

  • Olfactory Dysfunction
  • Post Viral Olfactory Dysfunction (PVOD)

Interventions

DEVICE

Conventional olfactory training device

Conventional olfactory training was designed by Hummel et al. They performed OT using four odors (phenyl ethyl alcohol, rose; eucalyptol, eucalyptus; citronella, lemon; and eugenol, cloves), which are representative of four odor categories on the odor prism proposed by Henning.

DEVICE

Modified olfactory training device

Participants will use a modified olfactory training device based on expiratory pressure. Its bidirectional airflow and unidirectional pressure characteristics significantly increased the deposition rate of olfactory odors in the olfactory cleft area, making the patient feel stronger in the nasal cavity during olfactory training.

DEVICE

Conventional olfactory training device with placebo

Based on the traditional olfactory training device, four olfactory odors are replaced by placebo。

Sponsors & Collaborators

  • Peking University Third Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-03-22
Primary Completion
2027-03-22
Completion
2027-05-22

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06829706 on ClinicalTrials.gov