Comparative Effectiveness Research in Veterans With PTSD
NCT ID: NCT01928732
Last Updated: 2022-02-02
Study Results
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View full resultsBasic Information
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COMPLETED
NA
916 participants
INTERVENTIONAL
2014-10-31
2019-04-18
Brief Summary
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The sample will include 900 male and female Veterans with PTSD due to any traumatic military event. Veterans who are eligible and agree to participate in the study will be randomly assigned (by chance) to receive Prolonged Exposure or Cognitive Processing Therapy. The standard "dose" of treatment is 12 weekly sessions but Veterans who improve more rapidly may finish in fewer sessions and Veterans who improve more slowly may have additional sessions. The primary outcome is improvement in PTSD symptoms after treatment. The outcome will be measured at regular follow-up visits that will occur at the middle and at the end of treatment and then 3 and 6 months later. The investigators will measure other outcomes, including additional mental health problems, functioning, quality of life, and use of treatments for mental and physical problems. The investigators also will measure Veterans' treatment preference and examine whether Veterans who get the treatment they prefer do better than Veterans who get the less-preferred treatment.
As a large multi-site trial with men and women, CSP #591 is designed to provide conclusive information about whether one treatment is better than the other, overall and for different types of patients-for example, men vs. women, combat Veterans vs. Veterans who experienced military sexual trauma, and older vs. younger Veterans. Regardless of the outcome, patients will have more information to help them make an informed decisions about which treatment to choose and VA will have stronger evidence to help make care Veteran-centered.
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Detailed Description
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Despite solid evidence that Prolonged Exposure and Cognitive Processing Therapy are effective treatments for PTSD in Veterans and non-Veterans, there is insufficient evidence about the effectiveness of these treatments relative to one another. The only study to compare the treatments, a single-site trial in non-Veteran female rape survivors, failed to find a difference, but the study was not adequately powered to compare two such effective treatments. Other data are similarly inconclusive. CSP #591 would break new ground as the first large-scale comparative effectiveness trial of treatment for PTSD and the first study to provide definitive information about how effective treatments for PTSD compare with one another.
The study will be a prospective randomized clinical trial with blinded assessment. The population will be male and female Veterans with PTSD due to any traumatic military event. Patients who are eligible and agree to participate in the study will be randomly assigned in a 1:1 ratio to receive Prolonged Exposure or Cognitive Processing Therapy. The investigators propose to administer 12 weekly sessions of each treatment as a standard "dose" but to allow participants who improve more rapidly to finish in 10 or 11 sessions and participants who have not attained adequate improvement by session 12 to have up to 2 additional sessions.
The primary outcome is improvement in PTSD symptom severity as measured by change on the Clinician-Administered PTSD Scale after treatment. The outcome measure will be determined from regular follow-up visits of the patients, which will occur at the middle and at the end of treatment and then 3 and 6 months later. Secondary outcomes include other measures of PTSD, comorbid mental health problems, functioning, quality of life, and service utilization. The investigators also will measure participants' treatment preference and examine whether concordance between preference and allocation is associated with increased treatment effectiveness.
In order to detect a standardized mean difference in improvement in PTSD symptom severity of d = .25, a sample size of 900 randomized patients provides 90% power to detect a difference between arms using the linear mixed effects model with a two-sided = .05. Given the lack of conclusive findings to predict which treatment is better, the investigators propose to test a nondirectional hypothesis. Assuming 2.5 years of accrual and an enrollment of 26 participants per year at each site, the investigators would need 14.1 sites to enroll a total of 64 participants per site. The investigators propose to recruit 17 sites to guard against the possibility that some sites will not enroll the required number of participants.
VA has a vested interest in understanding the relative effectiveness of Prolonged Exposure and Cognitive Processing Therapy. Both treatments are recommended at the highest level in the Veterans Affairs (VA)/Department of Defense (DoD) PTSD Practice Guideline. VA is required to make these treatments available to Veterans seeking PTSD care. The treatments are being disseminated nationally across the VA system in order to enhance the availability of evidence-based treatments to Veterans with PTSD. VA also has developed a national PTSD Mentoring Program for PTSD Program Administrators to help them manage their clinics to permit the delivery of these treatments. Every facility has an evidence-based therapy coordinator as well to facilitate training in evidence-based psychotherapy.
As a large multi-site trial with men and women, CSP #591 would provide definitive information about the comparative effectiveness of Prolonged Exposure and Cognitive Processing Therapy and maximize the study's impact on the field. Because the treatments are based on differing theories about the development of PTSD, a demonstration that one treatment is superior to the other would further scientific exploration by challenging theoretical accounts of etiology and treatment. Regardless of which treatment is better, patients would have more information to help them make an informed decision about which treatment to choose and VA would have stronger evidence to help make care Veteran-centered.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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CPT
Cognitive Processing Therapy (CPT) - a type of cognitive therapy for treating PTSD.
Cognitive Processing Therapy (CPT)
CPT consists of cognitive therapy and a written trauma narrative. Patients are taught to challenge their beliefs through Socratic questioning and the use of daily worksheets. The initial focus is on beliefs such as denial and self-blame, and then shifts to overgeneralized beliefs about self and the world. Patients process their trauma directly by writing a narrative of their traumatic event(s) that they read to themselves and to therapists. The typical protocol consists of 12 1-hr sessions. In this study, the 12-session protocol will be followed, but participants who improve more rapidly may finish in 10 sessions and those who improve more slowly may receive up to 2 additional sessions to continue working on stuck points with challenging beliefs worksheets.
PE
Prolonged Exposure (PE) - a type of exposure therapy for treating PTSD.
Prolonged Exposure (PE)
PE is a manualized, 90-minute, 8-15 week treatment program based on emotional processing theory, which posits that anxiety disorders, including PTSD, reflect pathological fear structures in which emotional and cognitive associations among different elements do not accurately represent reality and renders the individual dysfunctional and distressed. PE is designed to correct erroneous connections in the targeted memory structure. PTSD sufferers typically experience two key pathological emotional response sets and related cognitions: "The world is an utterly dangerous place," and "I am completely incompetent and unable to cope with stress." In this study, the 12-session protocol will be followed, but participants improve more rapidly may finish in 10 sessions and those who improve more slowly may have up to 2 additional sessions to continue working on exposure.
Interventions
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Cognitive Processing Therapy (CPT)
CPT consists of cognitive therapy and a written trauma narrative. Patients are taught to challenge their beliefs through Socratic questioning and the use of daily worksheets. The initial focus is on beliefs such as denial and self-blame, and then shifts to overgeneralized beliefs about self and the world. Patients process their trauma directly by writing a narrative of their traumatic event(s) that they read to themselves and to therapists. The typical protocol consists of 12 1-hr sessions. In this study, the 12-session protocol will be followed, but participants who improve more rapidly may finish in 10 sessions and those who improve more slowly may receive up to 2 additional sessions to continue working on stuck points with challenging beliefs worksheets.
Prolonged Exposure (PE)
PE is a manualized, 90-minute, 8-15 week treatment program based on emotional processing theory, which posits that anxiety disorders, including PTSD, reflect pathological fear structures in which emotional and cognitive associations among different elements do not accurately represent reality and renders the individual dysfunctional and distressed. PE is designed to correct erroneous connections in the targeted memory structure. PTSD sufferers typically experience two key pathological emotional response sets and related cognitions: "The world is an utterly dangerous place," and "I am completely incompetent and unable to cope with stress." In this study, the 12-session protocol will be followed, but participants improve more rapidly may finish in 10 sessions and those who improve more slowly may have up to 2 additional sessions to continue working on exposure.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* current psychotic symptoms and mania (including manic phase of bipolar disorder);
* significant current suicidal or homicidal ideation that includes a specific plan;
* or moderate to severe cognitive impairment defined as 1 SD below age-graded norms on the Montreal Cognitive Assessment.
18 Years
ALL
No
Sponsors
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VA Office of Research and Development
FED
Responsible Party
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Principal Investigators
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Paula P Schnurr, PhD
Role: STUDY_CHAIR
White River Junction VA Medical Center, White River Junction, VT
Josef I Ruzek, PhD
Role: STUDY_CHAIR
VA Palo Alto Health Care System, Palo Alto, CA
Kathleen M Chard, PhD
Role: STUDY_CHAIR
Cincinnati VA Medical Center, Cincinnati, OH
Locations
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Tuscaloosa VA Medical Center, Tuscaloosa, AL
Tuscaloosa, Alabama, United States
Phoenix VA Health Care System, Phoenix, AZ
Phoenix, Arizona, United States
VA Long Beach Healthcare System, Long Beach, CA
Long Beach, California, United States
VA Palo Alto Health Care System, Palo Alto, CA
Palo Alto, California, United States
San Francisco VA Medical Center, San Francisco, CA
San Francisco, California, United States
Atlanta VA Medical and Rehab Center, Decatur, GA
Decatur, Georgia, United States
Edward Hines Jr. VA Hospital, Hines, IL
Hines, Illinois, United States
Southeast Louisiana Veterans Health Care System, New Orleans, LA
New Orleans, Louisiana, United States
Minneapolis VA Health Care System, Minneapolis, MN
Minneapolis, Minnesota, United States
New Mexico VA Health Care System, Albuquerque, NM
Albuquerque, New Mexico, United States
Durham VA Medical Center, Durham, NC
Durham, North Carolina, United States
Cincinnati VA Medical Center, Cincinnati, OH
Cincinnati, Ohio, United States
Louis Stokes VA Medical Center, Cleveland, OH
Cleveland, Ohio, United States
Michael E. DeBakey VA Medical Center, Houston, TX
Houston, Texas, United States
VA Salt Lake City Health Care System, Salt Lake City, UT
Salt Lake City, Utah, United States
White River Junction VA Medical Center, White River Junction, VT
White River Junction, Vermont, United States
VA Puget Sound Health Care System Seattle Division, Seattle, WA
Seattle, Washington, United States
William S. Middleton Memorial Veterans Hospital, Madison, WI
Madison, Wisconsin, United States
Countries
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References
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Schnurr PP, Chard KM, Ruzek JI, Chow BK, Shih MC, Resick PA, Foa EB, Marx BP, Huang GD, Lu Y. Corrigendum to "Design of VA Cooperative Study #591: CERV-PTSD, Comparative Effectiveness Research in Veterans with PTSD" [Contemp. Clin. Trials 41 (2015) 75-84]. Contemp Clin Trials. 2019 May;80:61. doi: 10.1016/j.cct.2019.04.003. Epub 2019 Apr 5. No abstract available.
Schnurr PP, Chard KM, Ruzek JI, Chow BK, Shih MC, Resick PA, Foa EB, Marx BP, Huang GD, Lu Y. Design of VA Cooperative Study #591: CERV-PTSD, comparative effectiveness research in veterans with PTSD. Contemp Clin Trials. 2015 Mar;41:75-84. doi: 10.1016/j.cct.2014.11.017. Epub 2014 Nov 29.
Schnurr PP, Chard KM, Ruzek JI, Chow BK, Resick PA, Foa EB, Marx BP, Friedman MJ, Bovin MJ, Caudle KL, Castillo D, Curry KT, Hollifield M, Huang GD, Chee CL, Astin MC, Dickstein B, Renner K, Clancy CP, Collie C, Maieritsch K, Bailey S, Thompson K, Messina M, Franklin L, Lindley S, Kattar K, Luedtke B, Romesser J, McQuaid J, Sylvers P, Varkovitzky R, Davis L, MacVicar D, Shih MC. Comparison of Prolonged Exposure vs Cognitive Processing Therapy for Treatment of Posttraumatic Stress Disorder Among US Veterans: A Randomized Clinical Trial. JAMA Netw Open. 2022 Jan 4;5(1):e2136921. doi: 10.1001/jamanetworkopen.2021.36921.
Moshier SJ, Mahoney CT, Bovin MJ, Marx BP, Schnurr PP. Session-level effects of cognitive processing therapy and prolonged exposure on individual symptoms of posttraumatic stress disorder among U.S. veterans. J Consult Clin Psychol. 2024 Jul;92(7):422-431. doi: 10.1037/ccp0000880. Epub 2024 Mar 28.
Provided Documents
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Document Type: Study Protocol
Document Type: Statistical Analysis Plan
Document Type: Informed Consent Form
Other Identifiers
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591
Identifier Type: -
Identifier Source: org_study_id
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