Augmenting Massed Cognitive Processing Therapy (CPT) to Prevent Suicide Risk Among Patients With PTSD

Inclusion Criteria:

1. Active duty service member or veteran aged 18 or older eligible for military medical care.
2. Able to read, write, and speak English.
3. Meeting diagnostic criteria for PTSD or subthreshold PTSD (i.e., meeting diagnostic threshold for 3 of 4 symptom criteria within the past month) on the Clinician Administered PTSD Scale for DSM-5 (CAPS-5).
4. Active suicidal ideation within the past week as assessed by scoring ≥ 1 on Scale for Suicidal Ideation (SSI) item 4 (i.e., active suicidal ideation within the past month) or report an interrupted, aborted, or actual suicide attempt within the preceding month on the Self-Injurious Thoughts and Behaviors Interview-Revised (SITBI-R).
5. Regular use of an iPhone or Android smartphone.

Exclusion Criteria:

1. Inability to comprehend and complete the consent and baseline screening questionnaires.
2. Current suicide or homicide risk meriting crisis intervention.
3. Serious mental health symptoms, such as mania, psychosis, alcohol or substance use disorders warranting immediate clinical attention based on interviewer assessment and clinical judgement.
4. Currently engaged in evidence-based psychotherapy for PTSD (e.g., Cognitive Processing Therapy, Prolonged Exposure Therapy, Written Exposure Therapy).