Verification of the Efficacy/Safety of the Mixed Drug Injectable Delivery Vehicle for Treating Intractable Hearing Loss

NCT ID: NCT06437054

Last Updated: 2025-07-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

26 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-09-15

Study Completion Date

2028-09-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This study is a prospective, randomized pilot study. To verify an efficacy/safety of the mixed drug injectable delivery vehicle for treating intractable hearing loss. Hearing test, endoscopy of tympanic membrane and CT scans will be conducted after intratympanic treatment for evaluation.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The goal of this clinical trial (pilot study) is to evaluate the Efficacy and Safety of Combined Hyaluronic Acid and Dexamethasone Treatment in Patients with Hearing Loss. The main questions it aims to answer are: • Q1. Verification of safety, • Q2. Therapeutic effect of drug injection on sensorineural hearing loss. Participants will undergo several assessment tests (Verification of adverse effects in the external and middle ear through endoscopy, Confirmation of adverse effects through imaging, Hearing test to check for additional hearing loss, Check if subjective ear fullness persists for more than a week aside from the drug effect). If there is a comparison group: Researchers will compare dexamethasone and hyaluronic acid to verify hearing improvement and safety.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Hearing Loss, Sensorineural Hearing Loss, Sudden Intratympanic Injection

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Caregivers

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Dexamethasone+Saline+ICG

The experimental group received a single injection of Dexamethasone (5mg/ml) and Saline (D+Saline) mixed in a 1:1 ratio (with a possibility of a second injection if necessary). Additionally, two drops of Indocyanine Green (ICG: 25mg) were added, approximately 100μl (2.5mg/ml).

Group Type ACTIVE_COMPARATOR

Dexamethasone

Intervention Type DRUG

Dexamethasone 5mg/ml

Indocyanine green(ICG)

Intervention Type OTHER

ICG 25mg

Dexamethasone+Hyaluronic Acid+ICG

The experimental group received a single injection of Dexamethasone (5mg/ml) and Hyaluronic acid (D+HA) mixed in a 1:1 ratio (with a possibility of a second injection if necessary). Additionally, two drops of Indocyanine Green (ICG: 25mg) were added, approximately 100μl (2.5mg/ml).

Group Type EXPERIMENTAL

Dexamethasone

Intervention Type DRUG

Dexamethasone 5mg/ml

Hyaluronic acid

Intervention Type DRUG

Hyaluronic Acid 20mg/2ml

Indocyanine green(ICG)

Intervention Type OTHER

ICG 25mg

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Dexamethasone

Dexamethasone 5mg/ml

Intervention Type DRUG

Hyaluronic acid

Hyaluronic Acid 20mg/2ml

Intervention Type DRUG

Indocyanine green(ICG)

ICG 25mg

Intervention Type OTHER

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Dexamethasone Inj (Dexamethasone disodium phosphate 5㎎) [Daewon Pharm] Hyruan Plus Inj (Sodium Hyaluronate 10.0mg) [LG Chem] Cellbiongreen Inj (IndocyanineGreen 25mg) [Cellbion]

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Patients with sudden hearing loss, Meniere's disease, ototoxic hearing loss, and noise-induced hearing loss of 25dB HL at the frequency at which hearing loss occurs as a result of pure tone hearing test
* Patients whose original hearing ability has not been restored with existing standard treatment (oral, intravenous steroids)
* Those who have not participated in clinical trials within 3 months are selected as subjects

Exclusion Criteria

* Pregnant or lactating women
* When accompanied by lesion, infection, or anatomical deformity of the outer ear, middle ear, or inner ear
* Those with liver disease or metabolic disease or a history thereof
* History of hypersensitivity to indocyanine green or iodine hypersensitivity
* History of ear surgery
* Cases with posterior labyrinth lesions
* Patients with a history of hypersensitivity to the ingredients of this drug
* In addition, serious diseases such as end-stage renal disease, end-stage liver disease, cardiovascular surgery, progressive brain tumor, progressive hemorrhage, and progressive cerebral hemorrhage are included Cases with brain disease and cancer are excluded from the study
Minimum Eligible Age

19 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Seoul National University Hospital

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Myung-Whan Suh

Role: CONTACT

+821039490330

Yu-Jung HWANG

Role: CONTACT

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

ITV-2309-098-1469

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Sudden Deafness Treatment Trial
NCT00097448 COMPLETED PHASE3
Prevention of Noise-induced Hearing Loss
NCT02049073 WITHDRAWN PHASE1/PHASE2