Importance: Suicide rates continue to increase in the US. Evidence-based treatments for suicide risk exist, but their effectiveness when delivered via telehealth remains unknown.
Objective: To test the efficacy of brief cognitive behavioral therapy (BCBT) for reducing suicide attempts and suicidal ideation among high-risk adults when delivered via telehealth.
Design, setting, and participants: This 2-group parallel randomized clinical trial comparing BCBT with present-centered therapy (PCT) was conducted from April 2021 to September 2023 with 1-year follow-up at an outpatient psychiatry and behavioral health clinic located in the midwestern US. Participants reporting suicidal ideation during the past week and/or suicidal behavior during the past month were recruited from clinic waiting lists, inpatient service, intermediate care, research match, and direct referrals from clinicians. A total of 768 participants were invited to participate, 112 were assessed for eligibility, and 98 were eligible and randomly assigned to a treatment condition. Data analysis was from April to September 2024.
Interventions: Participants received either BCBT, an evidence-based suicide-focused treatment that teaches emotion regulation and reappraisal skills, or PCT, a goal-oriented treatment that helps participants identify adaptive responses to stressors. Participants were randomized using a computerized stratified randomization algorithm with 2 strata (sex and history of suicide attempts).
Main outcomes and measures: The primary outcome was suicide attempts as measured by the Self-Injurious Thoughts and Behaviors Interview-Revised. The secondary outcome was severity of suicidal ideation as measured by the Scale for Suicide Ideation.
Results: Participants included 96 adults (mean [SD] age, 31.8 [12.6] years; 64 female [66.7%] and 32 male [33.3%]), with 51 receiving BCBT and 45 receiving PCT. Of all participants, 85 (88.5%) completed at least 1 session. From baseline to 12 months, 12 participants receiving PCT (estimated percentage, 35.6%) made 56 suicide attempts and 11 participants receiving BCBT (estimated percentage, 30.0%) made 36 suicide attempts. Participants randomized to BCBT made significantly fewer suicide attempts than participants randomized to PCT (mean [range], 0.70 [0.00-8.00] attempts per participant vs 1.40 [0.00-10.00] per participant) and had a 41% reduced risk for suicide attempts (hazard ratio, 0.59; 95% CI, 0.36-0.96; P = .03). Severity of suicidal ideation significantly decreased in both treatments (F4,330 = 50.1; P < .001) but did not differ between groups (F4,330 = 0.2; P = .91).
Conclusions and relevance: The findings of this randomized clinical trial suggest that BCBT delivered via video telehealth is effective for reducing suicide attempts among adults with recent suicidal thoughts and/or behaviors.
Trial registration: ClinicalTrials.gov Identifier: NCT04844294.