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Temporal Interference Transcranial Alternating Current Stimulation for Major Depressive Disorder and Generalized Anxiety Disorder
Sponsor: Central South University
Summary
This multi-center, double-blind study, randomized controlled trial aims to evaluate the efficacy and safety of Temporal Interference transcranial Alternating Current Stimulation (TI-tACS) in patients with major depressive disorder (MDD) and generalized anxiety disorder (GAD). All participants will be enrolled as two independent cohorts and randomized separately within each diagnostic group. Participants with major depressive disorder will be randomized to receive high-frequency TI-tACS(130 Hz), low-frequency TI-tACS(2Hz), or sham stimulation targeting the right amygdala. Participants with generalized anxiety disorder will be randomized to receive high-frequency TI-tACS(80Hz), low-frequency TI-tACS(5Hz), or sham stimulation targeting the right amygdala. The intervention consists of 20 stimulation sessions administered over 2 weeks (twice a day for 5 consecutive days, followed by a 2-day break, and another 5 consecutive days). Clinical assessments will be conducted at baseline, during treatment, and at multiple follow-up time points up to 6 months. The primary outcome for the MDD cohort is the change from baseline in the Hamilton Depression Rating Scale (HAMD-17) at week 2. The primary outcome for the GAD cohort is the change from baseline in the Hamilton Anxiety Rating Scale (HAMA) at week 2. Secondary outcomes include changes in clinical symptoms, cognitive function, and safety profiles in both the MDD and GAD cohorts.
Official title: A Double-Blind, Randomized, Sham-Controlled Clinical Trial of Temporal Interference Transcranial Alternating Current Stimulation for the Treatment of Major Depressive Disorder and Generalized Anxiety Disorder
Key Details
Gender
All
Age Range
18 Years - 55 Years
Study Type
INTERVENTIONAL
Enrollment
192
Start Date
2026-06
Completion Date
2028-06
Last Updated
2026-07-17
Healthy Volunteers
No
Interventions
Temporal Interference transcranial Alternating Current Stimulation (TI-tACS)
Temporal Interference transcranial Alternating Current Stimulation (TI-tACS) is a non-invasive neuromodulation technique that generates a low-frequency envelope field in deep brain regions, particularly the right amygdala, through the interaction of two high-frequency currents. In the MDD cohort, low-frequency stimulation will be delivered at 2 Hz and high-frequency stimulation at 130 Hz. In the GAD cohort, low-frequency stimulation will be delivered at 5 Hz and high-frequency stimulation at 80 Hz.
Sham Temporal Interference transcranial Alternating Current Stimulation (TI-tACS)
Sham Temporal Interference transcranial Alternating Current Stimulation will mimic the sensory experience of active stimulation without delivering effective current.