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Yiyuancong for the Treatment of Sudden Sensorineural Hearing Loss

NCT07505667 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 128

Last updated 2026-04-01

No results posted yet for this study

Summary

This project aims to evaluate the clinical efficacy of Yiyuancong, an independently developed traditional Chinese medicine (TCM) formula based on the homology of medicine and food, in participants with sudden sensorineural hearing loss (SSNHL) and to elucidate its potential underlying mechanisms. This study is designed as a multicenter, randomized controlled trial (RCT), utilizing dynamic randomization for participant allocation. Due to the requirement for the experimental group to continuously administer the TCM preparation for 1-2 months, this study is conducted as an open-label (non-blinded) trial. All participants will undergo audiological evaluations at baseline, day 7 of treatment, and upon completion of the first and second treatment courses.

Based on previous research regarding integrated traditional Chinese and Western medicine for SSNHL, the estimated effect size (ES) for the improvement of pure-tone thresholds compared with Western medicine alone ranges from 0.5 to 0.8. Assuming an effect size of 0.5 for the difference in pure-tone audiometry (PTA) improvement between the experimental and control groups, with a significance level (α) of 0.05 (one-tailed) and a statistical power (1-β) of 0.8, the required sample size calculated via G\*Power software is 51 per group. Accounting for a 20% dropout rate, the investigators plan to enroll 64 participants per group (total N = 128).

Conditions

  • Sudden Hearing Loss
  • Sensorineural Hearing Loss

Interventions

DRUG

Standard treatment combined with Yiyuancong

Standard treatment combined with 15 mL of Yiyuancong herbal paste, taken twice daily after meals

DRUG

Standard treatment

Standard treatment

Sponsors & Collaborators

  • Guangdong Provincial People's Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

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

Timeline & Regulatory

Start
2025-11-15
Primary Completion
2027-11-15
Completion
2027-11-15

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 NCT07505667 on ClinicalTrials.gov