1Hz vs. cTBS Transcranial Magnetic Stimulation to Augment Behavior Therapy for Tics: A Randomized Clinical Trial

Background: Response to Comprehensive Behavioral Intervention for Tics (CBIT), the first-line treatment for tic disorders, is suboptimal. We conducted Phase 1 of a two-phase, milestone-driven trial to determine if augmenting CBIT with repetitive transcranial magnetic stimulation (TMS) to supplementary motor area (SMA) could safely engage targeted sensorimotor circuitry and improve tic controllability. Methods: In a 3-arm, double-blind, sham-controlled randomized trial (NCT04578912), 50 youth (ages 12-21) with moderate-to-severe tics received 10 sessions of either 1Hz rTMS, continuous theta bur

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