Enhanced Brief CBT for Suicidal Inpatients With Mood Disorders

Inclusion Criteria: Participants must meet all of the following criteria to be eligible for the study: * Hospitalized following a suicide crisis \*A suicide crisis is defined based on the Columbia-Suicide Severity Rating Scale (C-SSRS) as meeting at least one of the following: A. A suicide attempt within 1 week prior to admission B. Current suicidal ideation and plan at the time of admission (recorded as the reason for hospitalization) and at least one prior suicide attempt within the past 2 years * Aged 18 years or older * Diagnosed with a depressive disorder or bipolar and related disorder based on the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) using the Mini International Neuropsychiatric Interview (M.I.N.I.) at screening * Able to read and write in Korean without difficulty * Capable of understanding the study procedures and providing written informed consent voluntarily Exclusion Criteria: Participants will be excluded if any of the following apply: * Has an acute manic episode with psychotic features, a schizophrenia spectrum disorder, a clinically significant neurological disorder, brain injury, intellectual disability, or any other physical illness that would interfere with participation in the study. * Receiving ongoing psychotherapy (e.g., cognitive behavioral therapy, interpersonal psychotherapy, psychodynamic psychotherapy) within 3 months prior to screening. * Expected to be discharged within 6 working days of admission, as…