The overall goal of this study is to evaluate the feasibility, safety, and preliminary efficacy of deep Transcranial Magnetic Stimulation (dTMS) as an adjunctive treatment for adolescents hospitalized with major depressive disorder (MDD). Our central hypotheses are that dTMS H7 targeting the dorsomedial prefrontal and cingulate cortices, delivered via the Brainsway H7-Coil™, will be safe, well tolerated, and lead to improved depressive symptoms, reduced suicide risk, and lower readmission rates compared to sham treatment. Investigators propose a double-blind, sham-controlled randomized clinical trial enrolling 14- to 18-year-old inpatients with MDD with or without obsessive compulsive disorder (OCD). Participants (n=60) will be randomized to receive either active or sham TMS during hospitalization, with follow-up assessments continuing for 12 months post-discharge. Outcomes will include safety, tolerability, treatment adherence, depressive symptom change, suicidal ideation, and time to psychiatric readmission. This study will provide foundational data to support the clinical integration of TMS into inpatient care for adolescents with treatment-resistant depression.
