The Temporally Interfering in Patients With Disorders of Consciousness

July 20, 2026 updated by: Li Zhang, MD, Zhejiang Provincial People's Hospital

The Efficacy and Safety of Temporally Interfering in Patients With Disorders of Consciousness

This project will help the patient recover consciousness by giving TI (temporally interfering) treatment

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

28

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Zhejiang
      • Hangzhou, Zhejiang, China, 310000
        • Hangzhou Mingzhou Brain Rehabilitation Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

In accordance with the international diagnostic criteria for MCS formulated by Giacino in 2002 or the diagnostic criteria for UWS proposed by Laureys in 2010; Patients with disease duration ≥28 days and unconscious improvement tendency in the past one month; No use of any sedative drugs or antiepileptic drugs (sodium or calcium channel blockers) in the past 1 month; stable vital signs; No obvious brain edema, hydrocephalus, and severe brain atrophy; Age from 18 to 80 years old; Informed consent was obtained from the patients' family members.

Exclusion Criteria:

Previous history of neurological or psychiatric disorders; Prior traumatic brain injury unrelated to the index injury; History of cancer; Taking sedative drugs or antiepileptic drugs in the past 1 month; Unstable vital signs; Skull defect; The patients' family members did not sign the informed consent.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Sham Comparator: Sham comparator
Participants receive sham TI stimulation one session per day for 5 consecutive days
Device: sham TI
The sham TI device is the same as the active comparator's except that no current was delivered during the stimulation period.
Active Comparator: real TI stimulation
Participants receive real TI stimulation one session per day for 5 consecutive days
Device: real TI
Stimulation was delivered as two sinusoidal alternating currents with carrier frequencies of 2000 Hz and 2010 Hz, generating a 10 Hz amplitude-modulated envelope. Current intensity was set at 3 mA per channel. Each session included 30-second ramp-up and ramp-down periods at the beginning and end of stimulation.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
CRS-R (Coma Recovery Scale-revised)
Time Frame: Baseline; Within 1 week post-stimulation
The CRS-R scale, with scores ranging from 0 to 23, a standardized neurobehavioral assessment measure designed for use in patients with disorders of consciousness. The scale is intended to be used to establish diagnosis, monitor behavioral recovery, predict outcome, and assess treatment effectiveness. The CRS-R consists of 6 subscales designed to assess auditory function, receptive and expressive language, visuoperception, communication ability, motor functions, and arousal level.
Baseline; Within 1 week post-stimulation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
EEG spectral power
Time Frame: Baseline; Within 1 week post-stimulation
EEG spectral power was quantified across five canonical frequency bands: delta (1-4 Hz), theta (4-8 Hz), alpha (8-13 Hz), beta (13-30 Hz), and gamma (30-40 Hz). Relative power spectral density (PSD) was calculated for each frequency band.
Baseline; Within 1 week post-stimulation
fNIRS-derived hemoglobin concentration changes
Time Frame: fNIRS data were acquired over a 40-min session on each of the 5 treatment days.
Changes in oxygenated hemoglobin (ΔHbO), deoxygenated hemoglobin (ΔHbR), and total hemoglobin (ΔHbT) concentrations were measured using functional near-infrared spectroscopy (fNIRS).
fNIRS data were acquired over a 40-min session on each of the 5 treatment days.
GOS-E（Glasgow Outcome Scale - Extended）
Time Frame: 6 months
The outcome of patients was divided into 8 grades by GOS-E, and the higher the grade, the better the prognosis.
6 months
Changes in CRS-R subscale scores
Time Frame: Baseline; Within 1 week post-stimulation and at 1-month, 3-month, and 6-month follow-up.
The CRS-R scale, with scores ranging from 0 to 23, a standardized neurobehavioral assessment measure designed for use in patients with disorders of consciousness. The scale is intended to be used to establish diagnosis, monitor behavioral recovery, predict outcome, and assess treatment effectiveness. The CRS-R consists of 6 subscales designed to assess auditory function, receptive and expressive language, visuoperception, communication ability, motor functions, and arousal level.
Baseline; Within 1 week post-stimulation and at 1-month, 3-month, and 6-month follow-up.
Total CRS-R score changes at follow-up
Time Frame: Pre-stimulation, post-stimulation and at 1-month, 3-month, and 6-month follow-up.
The CRS-R scale, with scores ranging from 0 to 23, a standardized neurobehavioral assessment measure designed for use in patients with disorders of consciousness. The scale is intended to be used to establish diagnosis, monitor behavioral recovery, predict outcome, and assess treatment effectiveness. The CRS-R consists of 6 subscales designed to assess auditory function, receptive and expressive language, visuoperception, communication ability, motor functions, and arousal level.
Pre-stimulation, post-stimulation and at 1-month, 3-month, and 6-month follow-up.
EEG functional connectivity
Time Frame: Baseline; Within 1 week post-stimulation
EEG functional connectivity was quantified using phase-locking value (PLV) across five frequency bands: delta (1-4 Hz), theta (4-8 Hz), alpha (8-13 Hz), beta (13-30 Hz), and gamma (30-40 Hz).
Baseline; Within 1 week post-stimulation
Auditory steady-state response (ASSR)
Time Frame: Baseline; Within 1 week post-stimulation
ASSR was recorded during EEG while participants listened to modulated tones. ASSR strength was quantified using an amplitude-based signal-to-noise ratio (SNR), calculated as the amplitude at the target frequency divided by the mean amplitude of the surrounding spectral background.
Baseline; Within 1 week post-stimulation
fNIRS-derived functional connectivity
Time Frame: fNIRS data were acquired over a 40-min session on each of the 5 treatment days.
Functional connectivity was estimated by calculating Pearson correlation coefficients between fNIRS time series.
fNIRS data were acquired over a 40-min session on each of the 5 treatment days.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Zhejiang Provincial People's Hospital

Collaborators

Zhejiang University
Hangzhou Mingzhou Brain Rehabilitation Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 20, 2025

Primary Completion (Actual)

October 31, 2025

Study Completion (Actual)

April 30, 2026

Study Registration Dates

First Submitted

January 16, 2025

First Submitted That Met QC Criteria

February 6, 2025

First Posted (Actual)

February 12, 2025

Study Record Updates

Last Update Posted (Actual)

July 22, 2026

Last Update Submitted That Met QC Criteria

July 20, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TI-DOC

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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