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Disorder of ConsciousnessNCT06896279

Study on the Effectiveness and Safety of Temporal Interference Stimulation in Treating Patients With Severe Consciousness Disorders

A study testing TI Stimulation in people with Disorder of Consciousness and Temporal Interference Stimulation, run by Huashan Hospital at 2 sites in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Investigating the efficacy and safety of temporal interference stimulation for patients with disorders of consciousness. Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
TI Stimulation
Type of treatment
Surgery or procedure
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
20 participants
Where
2 sitesChina
Study dates
21 Apr 2025to 17 May 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Severe consciousness disorder patients aged 18 to 75 years old, regardless of gender;
  • Patients with severe consciousness disorders, namely a minimally conscious state or vegetative state that lasts for 28 days or more;
  • Patients with normal body temperature, stable vital signs, spontaneous breathing, tracheotomy without the use of a metal cannula and with a small amount of sputum, and who are eligible for magnetic resonance imaging (MRI) examination;
  • Written informed consent obtained from the patient's family members in advance.

Who cannot join

  • Individuals with a previous history of significant neuropsychiatric and other major disorders such as those involving the heart, lung, liver, and kidney;
  • Those who have undergone V-P shunt or Ommaya reservoir implantation and other procedures that may influence the analysis of magnetic resonance scanning signals;
  • Patients who are scheduled for V-P shunt or Ommaya reservoir implantation in the near future;
  • Pregnant women;
  • Those who have participated in other drug or device clinical trials;
  • Patients with poorly controlled epilepsy in the recent period;
Show all 12Show fewer
  • Those with infections at the TI stimulation site or compromised skin integrity at the electrode placement site;
  • Those currently taking medications prone to inducing epilepsy, such as quinolone drugs;
  • Those with intracranial infections, intracranial tumors, or metallic objects within the cranium;
  • Those allergic to electrode gel or adhesives;
  • Those with implanted electronic devices within the body;
  • Those with severe cardiac disorders and those equipped with cardiac pacemakers.

Trial locations and contacts

2 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Xuehai Wu, Ph.D. contact

+86 13764880571

Wuxuehai2013@163.com

Wentao Huang, M.M. contact

+86 19370557372

hhuangwt7777@163.com

China2 sites, 2 recruiting
  • Department of neurological rehabilitation, Shanghai First Rehabilitation Hospital, Tongji University

    Shanghai, Shanghai Municipality, 200000

    Anjing Zhang, Ph.D., +86 18930133551, sunnylovely_aj@163.com

    Recruiting
  • Department of Neurosurgery, Huashan Hospital, Fudan University

    Shanghai, Shanghai Municipality, 200000

    Xuehai Wu, Ph.D., +8613764880571, Wuxuehai2013@163.com

    Recruiting

Other trials in China

About this study

Investigating the efficacy and safety of temporal interference stimulation for patients with disorders of consciousness.

Read the detailed description

Based on the central loop hypothesis, deep brain stimulation (DBS) represents a commonly utilized neuro-modulation stimulation technology for disorders of consciousness (DOC). It was initially employed in Europe in 1968 for treating DOC. Some patients can regain functional communication capabilities and even resume family life. Nevertheless, as a neurosurgical intervention, DBS implantation entails significant surgical risks and potential complications (such as cerebral edema in the surgical area, secondary cerebral hemorrhage, secondary epilepsy, postoperative brain abscess, pulse generator shutdown or circuit malfunction, displacement of stimulation electrodes or extension leads, rejection reactions), and incurs substantial costs, imposing a heavy burden on patients' families and the national medical insurance fund. Traditional non-invasive brain stimulation methods, such as transcranial alternating or direct current stimulation, although not requiring surgery, have limited focusing capacity and the ability to stimulate deep brain structures. Hence, researchers have been in pursuit of approaches to precisely and effectively stimulate deep brain regions without the need for surgery.

In 2017, the concept of temporal interference (TI) stimulation, a novel non-invasive method for regulating deep brain regions was put forward . The fundamental principle of TI stimulation is that two interfering high-frequency signals will generate a low-frequency amplitude-modulated electric field, which can drive the discharge of deep brain neurons. Furthermore, by fixing the sum of the input currents of two pairs of electrodes and altering the current input ratio of the two pairs of electrodes, the movement of the mouse's forepaws, whiskers, and ears without modifying the spatial position of the electrodes could be achieved. Therefore, TI stimulation enables the flexible movement of the stimulation target area within the brain without electrode displacement. Despite the fact that research on TI technology is still in its nascent stage, this method has demonstrated substantial potential in neuroscience and clinical therapy.

Consequently, the objective of this multicenter randomized controlled trial is to assess the therapeutic effect of temporal interference stimulation in awakening patients with severe disorders of consciousness and verify its safety. Simultaneously, it aims to clarify issues such as the clinical application indications, operational parameters of TI. This will facilitate a deeper comprehension of the effectiveness, clinical application indications, operational parameters, and treatment plans of this emerging neuro-modulation technology as a means of awakening treatment, and promote the advancement of diagnosis and treatment technologies for patients with severe disorders of consciousness.

Being tested
TI Stimulation, Sham Stimulation
Keywords
Disorder of Consciousness, Randomized clinical trail, Temporal Interference Stimulation
Medical subject headings
Consciousness Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • TI StimulationProcedure or surgery

    Participants will accept the TI stimulus for one month

  • Sham StimulationProcedure or surgery

    Participants will accept the sham TI stimulus for one month

Study groups in NCT06896279
Study groupRoleWhat they receive
TI stimulation groupExperimentalThe two high-frequency electric fields of the TI device are set at different frequencies, thereby resulting in the generation of a low-frequency electric field that is capable of triggering brain physiological responses. The duration is 10 minutes.
Receives: Procedure: TI Stimulation
Sham TI stimulation groupSham comparatorThe two high-frequency electric fields of the TI device are set to be completely of the same frequency (2000Hz), thus no low-frequency electric field is produced and no cerebral physiological responses are elicited. The duration lasts for 10 minutes.
Receives: Procedure: Sham Stimulation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Effective rate of awakening

    The CRS-R is employed, with a minimum of 5 CRS-R assessments conducted at each follow-up time point, accompanied by simultaneous video recording. And the highest value is scored as a state of consciousness. The clinical assessment of participants' consciousness is deemed significantly improved when it fulfills the following criteria: a) MCS- recover to consciousness level of MCS+ or higher; b) Vegetative state(VS) recover to consciousness level of MCS- or higher; c) MCS status (MCS- or MCS+) recover to emergence from MCS (restoration of functional communication).

    Measured: Stimulation for 1 month

Secondary outcomes (7)
  1. The difference of CRS-R scale relative to baseline between TI group and sham group

    The Coma Recovery Scale-Revised (CRS-R) is a standardized neurobehavioral assessment measure designed for use in patients with disorders of consciousness. It has good validity, reliability and practicability.

    Measured: Stimulation begin for 14 days, 1 month and 3 months

  2. The difference of Simplified Evaluation of CONsciousness Disorders (SECONDs) scale relative to baseline between TI group and sham group

    The SECONDs is a fast tool to assess consciousness in brain-injured patients. The minimum score is 0 and the maximum is 8, higher scores mean a better outcome.

    Measured: Stimulation begin for 14 days, 1 month and 3 months

  3. The difference of modified Ashworth scale relative to baseline between TI group and sham group

    The modified Ashworth scale is the most universally accepted clinical tool used to measure the increase of muscle tone. The minimum grade is 0 and the maximum is 4, higher scores mean a worse outcome.

    Measured: Stimulation begin for 14 days, 1 month and 3 months

  4. The difference of Nociception Coma Scale-Revised (NCS-R) scale relative to baseline between TI group and sham group

    The NCS-R was developed to help assess pain in patients with disorders of consciousness (DOC). Several studies have shown its sensitivity in assessing response to acute noxious stimuli. The minimum score is 0 and the maximum is 12, higher scores mean a better outcome.

    Measured: Stimulation begin for 14 days, 1 month and 3 months

  5. The difference of effective rate of awakening between TI group and sham group by CRS-R scale

    The Coma Recovery Scale-Revised (CRS-R) is a standardized neurobehavioral assessment measure designed for use in patients with disorders of consciousness. It has good validity, reliability and practicability.

    Measured: Stimulation begin for 1 month and 3 months

  6. The difference of effective rate of awakening between TI group and sham group by Simplified Evaluation of CONsciousness Disorders (SECONDs) scale

    The SECONDs is a fast tool to assess consciousness in brain-injured patients. The minimum score is 0 and the maximum is 8, higher scores mean a better outcome.

    Measured: Stimulation begin for 1 month and 3 months

  7. The difference of recovery trajectories of consciousness level between TI group and Sham group

    Measured: Stimulation for 3-month-stimulation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Mar 2025
  2. Study start21 Apr 2025
  3. Primary completion16 May 2026 (estimated)
  4. Study completion17 May 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06896279
Sponsor's protocol ID
HY-TI2024-01
Status last verified
Mar 2025
First submitted
3 Mar 2025
Last updated
16 Dec 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Violante IR, Alania K, Cassara AM, Neufeld E, Acerbo E, Carron R, Williamson A, Kurtin DL, Rhodes E, Hampshire A, Kuster N, Boyden ES, Pascual-Leone A, Grossman N. Non-invasive temporal interference electrical stimulation of the human hippocampus. Nat Neurosci. 2023 Nov;26(11):1994-2004. doi: 10.1038/s41593-023-01456-8. Epub 2023 Oct 19.

    PubMed 37857775
  • Thibaut A, Schiff N, Giacino J, Laureys S, Gosseries O. Therapeutic interventions in patients with prolonged disorders of consciousness. Lancet Neurol. 2019 Jun;18(6):600-614. doi: 10.1016/S1474-4422(19)30031-6. Epub 2019 Apr 16.

    PubMed 31003899
  • Giacino JT, Katz DI, Schiff ND, Whyte J, Ashman EJ, Ashwal S, Barbano R, Hammond FM, Laureys S, Ling GSF, Nakase-Richardson R, Seel RT, Yablon S, Getchius TSD, Gronseth GS, Armstrong MJ. Practice guideline update recommendations summary: Disorders of consciousness: Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology; the American Congress of Rehabilitation Medicine; and the National Institute on Disability, Independent Living, and Rehabilitation Research. Neurology. 2018 Sep 4;91(10):450-460. doi: 10.1212/WNL.0000000000005926. Epub 2018 Aug 8.

    PubMed 30089618
  • Grossman N, Bono D, Dedic N, Kodandaramaiah SB, Rudenko A, Suk HJ, Cassara AM, Neufeld E, Kuster N, Tsai LH, Pascual-Leone A, Boyden ES. Noninvasive Deep Brain Stimulation via Temporally Interfering Electric Fields. Cell. 2017 Jun 1;169(6):1029-1041.e16. doi: 10.1016/j.cell.2017.05.024.

    PubMed 28575667
  • Tasserie J, Uhrig L, Sitt JD, Manasova D, Dupont M, Dehaene S, Jarraya B. Deep brain stimulation of the thalamus restores signatures of consciousness in a nonhuman primate model. Sci Adv. 2022 Mar 18;8(11):eabl5547. doi: 10.1126/sciadv.abl5547. Epub 2022 Mar 18.

    PubMed 35302854
  • Schiff ND. Recovery of consciousness after brain injury: a mesocircuit hypothesis. Trends Neurosci. 2010 Jan;33(1):1-9. doi: 10.1016/j.tins.2009.11.002. Epub 2009 Dec 1.

    PubMed 19954851

Questions about this trial

What is this clinical trial studying?

A study testing TI Stimulation in people with Disorder of Consciousness and Temporal Interference Stimulation, run by Huashan Hospital at 2 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 16 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Xuehai Wu, Ph.D. (+86 13764880571, Wuxuehai2013@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Effective rate of awakening (time frame: Stimulation for 1 month). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06896279, which also lists 6 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Dec 2025.

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