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rTMS-tACS Stimulation on Improving Cognitive Function in Bipolar Disorder

NCT05964777 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 116

Last updated 2026-05-28

No results posted yet for this study

Summary

Based on the individualized positioning technology of diffusion tensor imaging (DTI), the purpose of this study is to explore a new stimulation target and protocol for the treatment of bipolar disorder in remission through the repetitive transcranial magnetic stimulation(rTMS) and transcranial alternating current stimulation（tACS）under neuronavigation，verify whether there is abnormal functional connectivity and structural connections between the dorsolateral prefrontal cortex (dlpfc) and the dorsal anterior cingulate gyrus (dacc) related to cognitive impairment in bipolar disorder in remission, which will contribute to further understand the relevant neural pathway and mechanism.

Conditions

  • Bipolar Disorder in Remission

Interventions

DEVICE

rTMS（repeated transcranial magnetic stimulation）

It is a therapeutic technique that utilizes repetitive pulsed magnetic fields applied externally to the skull to act on specific areas of the central nervous system. By altering the membrane potential of cortical neurons, it induces electric currents, which in turn affect brain metabolism and neural electrical activity, leading to a series of physiological and biochemical reactions.on of the therapeutic target. The true stimulation group receives treatment at 100% of the rTMS intensity, while the sham stimulation group receives treatment at 20% of the rTMS intensity. All other parameters are the same. The treatment is conducted from Monday to Friday for a total of three weeks, amounting to 15 sessions.

DEVICE

tACS（transcranial alternating current stimulation）

It is a non-invasive brain stimulation method that involves injecting sinusoidal currents to manipulate and entrain inherent neural oscillations, thereby modulating neural activity. Under true stimulation, the stimulation electrode inputs 2mA, with a stimulation frequency of 40Hz. The other four return electrodes each output 0.5mA. The current fade-in and fade-out time is 10 seconds, and the stimulation duration is 30 minutes. For sham stimulation, the duration is the same as for true stimulation, but only the first and last 20 seconds have real electrical stimulation (i.e., 10 seconds of stimulation at the beginning and end, with no real stimulation during the intervening 29 minutes and 40 seconds).

Sponsors & Collaborators

  • First Affiliated Hospital of Zhejiang University

    lead OTHER

Principal Investigators

  • ShaoHua Hu, MD · Zhejiang University

  • China Zhejiang · The First Affiliated Hospital of Zhejiang University [Recruiting] Hangzhou, Zhejiang, China, 310000 Contact: ShaoHua Hu, MD 13957162903 dorhushaoh

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
14 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-07-01
Primary Completion
2024-07-03
Completion
2024-08-03

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05964777 on ClinicalTrials.gov