Improving Treatment Outcomes for Suicidal Veterans With PTSD

Not Applicable

Completed

Conditions: Suicidal Ideation
Ptsd
Suicide, Attempted

Interventions: Behavioral: Cognitive Processing Therapy (CPT)
Behavioral: Safety Planning Intervention (SPI)
Behavioral: Crisis Response Plan (CRP)
Behavioral: Narrative Assessment

Registration Number: NCT04690582

Lead Sponsor: Ohio State University

Brief Summary: The efficacy of cognitive processing therapy (CPT) for reducing the symptoms of posttraumatic stress disorder (PTSD) across populations including military personnel and veterans is well supported. CPT also contributes to significant and rapid reductions in suicide ideation among people diagnosed with PTSD, although available evidence suggests this effect decays over time. Studies also show that approximately 1 in 6 people who begin CPT without suicide ideation will subsequently report suicidal thoughts at some point during or soon after completing treatment. Research focused on improving CPT's effects on suicide risk is therefore warranted. The primary aim of this study is to determine if the integration of a crisis response plan (CRP)--an empirically-supported procedure for reducing suicide ideation and attempts--can lead to faster reductions in suicide ideation among acutely suicidal veterans receiving CPT and prevent the development of suicide ideation among veterans who begin CPT without suicide ideation.

Detailed Description: Cognitive behavioral treatments tend to be the most highly efficacious treatments for PTSD. Cognitive Processing Therapy (CPT) is one such treatment that has garnered a significant amount of empirical support, with a recent metaanalysis showing it was the most effective treatment for PTSD, typically yielding a 50% or larger reduction in PTSD symptoms from pre- to posttreatment. Redutions in PTSD symptoms are similar in magnitude when CPT is delivered in a virtual or telehealth format as compared to face-to-face delivery. Long-term follow-up studies conducted in nonmilitary samples also suggest the beneficial effects of CPT endure for up to 10 years posttreatment. Clinical improvement and recovery rates tend to be higher among patients who complete CPT compared to those that drop out of treatment early. Data also suggest that PTSD outcomes are moderated by session frequency, such that CPT sessions spaced closer together yield better effects than CPT sessions that are spaced further apart.

In addition to reducing PTSD symptoms, recent studies indicate CPT is also associated with significant short-term reduction in suicide ideation, potentially due to its effects on PTSD and depression symptom severity. In some studies, suicide ideation increased in severity again several months after the conclusion of therapy, however, suggesting a period of increased vulnerability for suicide. Enhancing CPT with procedures that have been shown to significantly reduce suicidal thoughts and behaviors could serve to further reduce suicide risk during and after treatment completion. One such procedure is the crisis response plan (CRP), a collaborative, patient-centered intervention that is typically handwritten on an index cards and focuses on several key components: (1) warning signs, (2) self-regulatory strategies, (3) reasons for living, (4) sources of social support, and (5) professional and crisis services. In a randomized clinical trial previously conducted by our team, acutely suicidal patients who received a CRP showed significantly faster declines in suicide ideation and were 76% less likely to attempt suicide during the 6-month follow-up as compared to patients who received mental health treatment as usual.

In the present study, the investigators aim to determine if the addition of a CRP with CPT will lead to faster reductions in suicide ideation and prevent the recurrence of suicide ideation during follow-up as compared to the standard provision of CPT. To achieve this, this study includes a two-arm, double blind parallel randomized clinical trial. The investigators will enroll 150 military personnel and veterans who meet full diagnostic criteria for PTSD (i.e., having 4 of 4 symptom criteria at or above threshold levels) or subthreshold PTSD (i.e., having 3 of 4 symptom criteria at or above threshold levels). All participants will receive 10-12 sessions of CPT, administered on a daily basis for two consecutive weeks. The investigators will assess suicide ideation, suicide attempts, and psychological symptom severity for up to one year post-treatment. Our primary hypothesis is that the combination of CRP and CPT will result in larger reductions in suicide ideation than CPT alone.

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 157

Inclusion Criteria

18 years of age or older
Current or prior service in the U.S. military
Current diagnosis of PTSD or subthreshold PTSD
Ability to speak and understand the English language
Ability to complete the informed consent process.

Exclusion Criteria

Substance use disorder requiring medical management
Imminent suicide risk warranting inpatient hospitalization or suicide-focused treatment
Impaired mental status that precludes the ability to provide informed consent (e.g., intoxication, psychosis, mania)

Study & Design

Study Type: INTERVENTIONAL

Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Crisis Response Plan (CPT+CRP)	Narrative Assessment	Participants will receive cognitive processing therapy (CPT) for PTSD combined with a collaborative crisis response plan (CRP). The CRP includes many of the same elements as the safety plan (i.e., warning signs, self-management strategies, sources of social support, crisis services), but is created collaboratively by the patient with active input of their clinician rather than being self-guided. The CRP also includes a section focused on the participant's reasons for living, an addition that has been shown to increase positive emotional states (e.g., hope, optimism) and lead to faster reductions in suicidal intent. The CRP will be collaboratively created during the first therapy session.
Treatment As Usual	Cognitive Processing Therapy (CPT)	Participants will receive cognitive processing therapy (CPT) for PTSD combined with a self-guided safety plan. As a recommended standard care practice with suicidal patients, the combination of CPT and safety plan represents treatment as usual. The safety plan will be assigned during the first therapy session.
Crisis Response Plan (CPT+CRP)	Cognitive Processing Therapy (CPT)	Participants will receive cognitive processing therapy (CPT) for PTSD combined with a collaborative crisis response plan (CRP). The CRP includes many of the same elements as the safety plan (i.e., warning signs, self-management strategies, sources of social support, crisis services), but is created collaboratively by the patient with active input of their clinician rather than being self-guided. The CRP also includes a section focused on the participant's reasons for living, an addition that has been shown to increase positive emotional states (e.g., hope, optimism) and lead to faster reductions in suicidal intent. The CRP will be collaboratively created during the first therapy session.
Treatment As Usual	Safety Planning Intervention (SPI)	Participants will receive cognitive processing therapy (CPT) for PTSD combined with a self-guided safety plan. As a recommended standard care practice with suicidal patients, the combination of CPT and safety plan represents treatment as usual. The safety plan will be assigned during the first therapy session.
Crisis Response Plan (CPT+CRP)	Crisis Response Plan (CRP)	Participants will receive cognitive processing therapy (CPT) for PTSD combined with a collaborative crisis response plan (CRP). The CRP includes many of the same elements as the safety plan (i.e., warning signs, self-management strategies, sources of social support, crisis services), but is created collaboratively by the patient with active input of their clinician rather than being self-guided. The CRP also includes a section focused on the participant's reasons for living, an addition that has been shown to increase positive emotional states (e.g., hope, optimism) and lead to faster reductions in suicidal intent. The CRP will be collaboratively created during the first therapy session.

Primary Outcome Measures

Name	Time	Method
Change in Suicide Ideation	Baseline (Pretreatment), 1 week, 2 weeks, 26 weeks, 52 weeks	Suicide ideation will be measured using the Scale for Suicide Ideation, an empirically-supported self-report scale that assesses the intensity of suicide-related thoughts, urges, intentions, and behaviors. Scores range from 0 to 38, with higher scores indicating more severe suicide ideation.
Percent With Follow-up Suicidal Behaviors	52 weeks	Percent of participants with one or more suicidal behaviors will be measured using the Self-Injurious Thoughts and Behaviors Interview-Revised, an empirically-supported self-report scale that assesses a range of self-injurious behaviors including suicide attempts, interrupted suicide attempts, preparatory behaviors, and non-suicidal self-injury during the 52 week follow-up. Suicidal behaviors will be coded with a binary variable indicating the presence or absence of any suicidal behavior during the study period.
Number of Follow-up Suicidal Behaviors	52 weeks	Number of suicidal behaviors will be measured using the Self-Injurious Thoughts and Behaviors Interview-Revised, an empirically-supported self-report scale that assesses a range of self-injurious behaviors including suicide attempts, interrupted suicide attempts, preparatory behaviors, and non-suicidal self-injury during the 52 week follow-up. Suicidal behaviors will be coded with a binary variable indicating the presence or absence of any suicidal behavior during the study period and then summed to calculate the total number of suicidal behaviors during the 52 week follow-up.

Secondary Outcome Measures

Name	Time	Method
Change in PTSD Symptoms	Baseline (Pretreatment) , 1 week, 2 weeks, 26 weeks, 52 weeks	Change in PTSD symptom severity will be measured using the National Stressful Events Survey PTSD Short Scale. Scores range from 0 to 36, with higher scores indicating more severe PTSD symptoms.