Can a talk therapy that boosts Self-Understanding prevent suicide?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age and consent * Presence of suicidal ideation or active behavior in the last month, assessed using the C-SSRS (e.g., intentional ideation, plan, or preparatory behavior) * Depressive or anxious symptoms (Score ≥ 10 on the PHQ-9, indicating at least moderate depressive symptoms, or Score ≥ 10 on the GAD-7, suggesting clinically significant anxiety.) * Availability and commitment to participate in the full assessment using all the aforementioned scales. Exclusion Criteria: * Clinical Safety (exclude and refer immediately) * Imminent suicide risk according to the C-SSRS (e.g., attempt within the last 7 days, current intentional plan, access to lethal means, and low ambivalence). * PHQ-9 item 9 = 3 ("almost every day") with clinical corroboration of imminent risk. * Current self-harm with lethality/high-harm moderator requiring acute restraint. * Refusal to establish a safety plan or allow emergency contact. * Acute Psychiatric Conditions/Contraindications of Assessment * Active psychosis or unstabilized manic episode. * Substance use disorder in intoxication or acute withdrawal (e.g., last 24-72 hours) that precludes valid assessment. * Uncontrolled risk of severe other-directed violence. * Medical or neurological conditions that preclude valid participation * Severe cognitive impairment (e.g., dementia, recent moderate-to-severe traumatic brain injury) that prevents understanding/answering scales. * Decompensated medical illness (e.g., desaturation, delirium, severe uncontrolled pain). * Unstable neurological condition (e.g., uncontrolled seizures). * Methodological interferences * Recent changes in baseline psychotropic medications within the last 2 weeks. * Concurrent intensive psychotherapy initiated within the last 4 weeks. * Simultaneous participation in another trial that could contaminate results. * Language other than that of the scales without available validation. * Logistical impossibility for follow-up (no telephone/stable contact; imminent relocation plan). * Legal aspects/consent * Incapacity to consent (legal or clinical) and no available representative. * Legal restrictions that prevent participation.