Ignite Creation Date:
2025-12-25 @ 4:03 AM
Ignite Modification Date:
2026-06-16 @ 9:07 AM
Study NCT ID:
NCT06646302
Status:
COMPLETED
Last Update Posted:
2025-09-11
First Post:
2024-10-09
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Residual Inhibition of 40 Hz Burst Sound in Tinnitus Patients
Sponsor:
Eye & ENT Hospital of Fudan University
Organization:
Study Overview
Official Title:
Neural and Clinical Effects of 40 Hz Burst Stimulation in Tinnitus: a Four-phase Self-controlled Study
Status:
COMPLETED
Status Verified Date:
2025-09
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Tinnitus affects 10-15% of adults and is frequently associated with impaired quality of life, anxiety, and sleep disturbance. Conventional sound therapies based on continuous masking provide inconsistent and short-lived relief, and the neural mechanisms underlying residual inhibition (RI) remain unclear.
This study aims to determine whether 40 Hz burst stimulation with high-frequency carriers can achieve longer-lasting RI than continuous sound, and to explore its underlying neural mechanisms using EEG.
This study aims to determine whether 40 Hz burst stimulation with high-frequency carriers can achieve longer-lasting RI than continuous sound, and to explore its underlying neural mechanisms using EEG.
Detailed Description:
Residual inhibition (RI) refers to the temporary reduction or disappearance of tinnitus following sound stimulation and provides an important clue for identifying patients who may benefit from acoustic therapy. However, the effects of different sound stimulation strategies on RI remain poorly understood.
This study evaluates whether 40 Hz burst-modulated sound achieves stronger and longer RI compared with conventional continuous stimulation. The trial follows a four-phase design:
Phase 1: Exploratory testing of burst versus continuous tones at different frequencies.
Phase 2: Large-scale validation in 265 patients. Phase 3: Development of a personalized stimulation protocol using adaptive spectral optimization.
Phase 4: EEG investigation of neural mechanisms, focusing on gamma oscillations and functional connectivity changes.
The primary outcomes are the strength and duration of tinnitus suppression. Secondary outcomes include EEG markers such as γ-band power spectral density and phase-locking value.
By combining behavioral and neurophysiological measures, this study aims to establish 40 Hz burst stimulation as a novel rhythm-based sound therapy and to provide mechanistic insights that may enable more effective, personalized tinnitus management.
This study evaluates whether 40 Hz burst-modulated sound achieves stronger and longer RI compared with conventional continuous stimulation. The trial follows a four-phase design:
Phase 1: Exploratory testing of burst versus continuous tones at different frequencies.
Phase 2: Large-scale validation in 265 patients. Phase 3: Development of a personalized stimulation protocol using adaptive spectral optimization.
Phase 4: EEG investigation of neural mechanisms, focusing on gamma oscillations and functional connectivity changes.
The primary outcomes are the strength and duration of tinnitus suppression. Secondary outcomes include EEG markers such as γ-band power spectral density and phase-locking value.
By combining behavioral and neurophysiological measures, this study aims to establish 40 Hz burst stimulation as a novel rhythm-based sound therapy and to provide mechanistic insights that may enable more effective, personalized tinnitus management.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
False
Is an FDA AA801 Violation?: