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Temporal Interference Stimulation of Default Mode Network for Disorganized Symptoms in Treatment-Resistant Schizophrenia: A Mechanistic Study

Temporal Interference Stimulation of Default Mode Network for Disorganized Symptoms in Treatment-Resistant Schizophrenia: A Mechanistic Study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600119406
Enrollment
Unknown
Registered
2026-02-26
Start date
2026-03-01
Completion date
Unknown
Last updated
2026-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Treatment-Resistant Schizophrenia

Interventions

TIS treatment group :TIS treatment
Sham stimulation control group :Sham stimulation

Sponsors

Renmin Hospital of Wuhan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 55 Years

Inclusion criteria

Inclusion criteria: 1. Meets the DSM-5 diagnostic criteria for schizophrenia; 2. Aged 18-55, right-handed, with an education level of junior high school or higher (>=9 years); 3. According to the attending physician's judgment, and based on past medical history and detailed follow-up of the patient's antipsychotic treatment records, meets the treatment-resistant criteria established by the American Psychiatric Association Treatment Response and Resistance in Psychosis (TRRIP) working group: after receiving >=2 different non-clozapine antipsychotic drugs at adequate doses (>=600 mg/day chlorpromazine equivalent), for an adequate duration (>=6 weeks at continuous therapeutic doses), and with good adherence (>=80% medication intake), the Clinical Global Impression - Severity scale (CGI-S) score is >=4 (indicating moderate or greater functional impairment), and >=2 items on the positive subscale of the Positive and Negative Syndrome Scale (PANSS) score >=4 (indicating moderate or greater severity of symptoms), with no symptom remission; 4. Exhibits moderate or greater disorganized symptoms, with a PANSS disorganized symptom score >=21; 5. The attending physician, together with the patient and family, decide to receive TIS treatment on the basis of existing medication. Patients currently using clozapine are allowed to enroll, provided the dose is stable (>=4 weeks) and there are no serious side effects.

Exclusion criteria

Exclusion criteria: 1. Presence of any contraindications for MRI scans; 2. History of ECT treatment (ECT induces seizures through electrical currents in the brain, which can have significant and potentially lasting effects on brain function and structure); 3. Received any neurostimulation treatments in the past 6 months (including rTMS, tDCS, tACS); 4. Comorbid other types of mental disorders (such as intellectual disability, obsessive-compulsive disorder, personality disorders, etc.); 5. Comorbid history of alcohol or drug abuse or dependence on psychoactive substances; 6. Presence of organic brain diseases or other unstable or severe physical illnesses; 7. Patients who are planning pregnancy, currently pregnant, or breastfeeding; 8. Patients who are extremely agitated, catatonic, passive suicidal, uncooperative, or at significant risk.

Design outcomes

Primary

MeasureTime frame
E/I balance (Glx/GABA), ;gamma oscillations;DMN function;

Countries

China

Contacts

Public ContactHuan Huang

Renmin Hospital of Wuhan University

lexie_hh@163.com+86 139 9555 4271

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Mar 14, 2026