Treatment of Older Veterans With Chronic Posttraumatic Stress Disorder

This project represents the first randomized clinical trial of psychotherapy for older veterans with posttraumatic stress disorder (PTSD). It will compare relaxation training (RT) to prolonged exposure therapy (PE). The project will also examine whether cognitive impairment influences psychotherapy outcome.

Primary hypotheses: (1) Subjects in the PE condition will have significantly less severe PTSD symptoms, depressive symptoms, and functional impairment than subjects in the RT condition at posttest; (2) Executive functioning will modify the response to both treatments, such that those with impaired executive functioning will demonstrate a smaller reduction in PTSD symptoms (representing less clinically significant change).

Study Overview

• Status: Completed
• Conditions: Post-traumatic Stress Disorder; Combat Disorders
• Intervention / Treatment: Behavioral: Prolonged Exposure Therapy (PE); Behavioral: Relaxation Training (RT)

Detailed Description

PTSD is associated with high rates of mortality from suicide and health complications, high healthcare costs, and diminished health and quality of life. Many military veterans have PTSD due to combat, and many veterans continue to carry the symptoms of PTSD into late life. The percentage of older veterans is expected to increase substantially in coming years (especially as Vietnam-era veterans become older adults). The psychosocial intervention with the most rigorous empirical support for treating PTSD in the general population is a cognitive-behavioral treatment known as exposure therapy (which involves helping patients face feared memories and situations), yet there have been no controlled studies of any psychosocial interventions for PTSD in samples of older adults. Some have argued that older adults will not respond well to exposure because of their cognitive limitations. However, several empirical studies have shown exposure therapy to be safe and effective with older adults with anxiety disorders other than PTSD.

The current project represents the first randomized clinical trial of psychotherapy for older veterans with posttraumatic stress disorder (PTSD). It will compare relaxation training (RT) to prolonged exposure therapy (PE). The project will also examine whether cognitive impairment influences psychotherapy outcome. The five-year Research Plan is divided into three phases. Phase 1 (Year 1) involves the development of procedures for assessment and preparation for the clinical trial. Phase 2 (Years 2-4) will entail the first randomized clinical trial of psychosocial treatments for PTSD in late life. One hundred veterans aged 60 years or older, with chronic PTSD, will be recruited from the San Diego VA PTSD Clinical Team and randomly assigned to 12 sessions of PE or 12 sessions of RT. Phase 3 (Year 5) will be comprised of final data collection, scoring and interpretation of all neuropsychological tests, data cleaning and analysis, and writing for publication of results. Primary hypotheses: (1) Subjects in the PE condition will have significantly less severe PTSD symptoms, depressive symptoms, and functional impairment than subjects in the RT condition at posttest; (2) Executive functioning will modify the response to both treatments, such that those with impaired executive functioning will demonstrate a smaller reduction in PTSD symptoms (representing less clinically significant change).

• Study Type: Interventional
• Enrollment (Actual): 87
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • California
    • San Diego, California, United States, 92161
      • VA San Diego Healthcare System, San Diego

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 60 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Male

Description

Inclusion Criteria:

• Veterans with primary diagnosis of chronic PTSD due to combat or non-sexual military trauma; comorbid mood and anxiety disorders are expected, and will be permitted (to maximize generalizability) if PTSD symptoms are judged to be predominant based on primacy and severity of symptoms
• Male
• Age 60 or older; and
• English literacy.

Exclusion Criteria:

• Unmanaged psychosis or manic episodes in past year
• Substance dependence or alcohol dependence in past 3 months
• Concurrent psychotherapies targeting PTSD or exposure therapy for other anxiety symptoms [veterans who are engaged in treatment for non-PTSD symptoms (e.g., 12-step programs for substance problems) will be eligible]
• Severe cardiovascular or respiratory disease that would make it difficult to ensure regular attendance at psychotherapy sessions
• Probable dementia (based on chart diagnosis); or
• Head trauma resulting in loss of consciousness longer than 20 minutes.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Prolonged Exposure Therapy (PE)	Behavioral: Prolonged Exposure Therapy (PE); PE is a therapy that aims to reduce PTSD symptoms via a systematic exposure to feared memories (by imaginal exposure - repeated narration about the traumatic memory) and situations (by in vivo exposure - engaging in feared but safe activities or facing feared situations).; Other Names: Implosive therapy; flooding; systematic desensitization
Active Comparator: Relaxation Training (RT)	Behavioral: Relaxation Training (RT); RT aims to teach relaxation methods in an effort to reduce anxiety. RT includes Progressive Muscle Relaxation, Imagery Rehearsal, and breathing training.; Other Names: Progressive Muscle Relaxation; Breathing training

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
PTSD Checklist (PCL)	The PTSD Checklist is a self-report questionnaire about PTSD symptoms. The version used in this study is called the PCL-S, which denotes a specific traumatic event for subjects to respond to. There are 17 items, each with response categories from 1 to 5. Thus, the total score ranges from 17 to 85. Higher scores reflect higher levels of PTSD symptoms, and a score of 50 or above is commonly interpreted to designate clinically significant PTSD symptoms.	Pre-treatment, post-treatment, and 6-month follow-up
Patient Health Questionnaire Depression Subscale (PHQ-9)	The PHQ-9 is a self-report questionnaire about depressive symptoms. There are 9 scored items, each with response categories from 0 (zero) to 3. Thus, the total score ranges from 0 to 27. Higher scores reflect higher levels of depressive symptoms, with interpretation as follows: 0 (zero) No depression 1-4 Minimal depression 5-9 Mild depression 10-14 Moderate depression 15-19 Moderately severe depression 20-27 Severe depression	Pre-treatment, post-treatment, and 6-month follow-up
Clinician-Administered PTSD Scale Severity Score (CAPS)	The CAPS is a clinician-administered interview about PTSD symptoms. There are 17 scored items for PTSD severity, each with response categories from 0 (zero) to 4 separately for both frequency and severity. Thus, each item can receive a score of 0 (zero) to 8, and the total severity score ranges from 0 to 136. Higher scores reflect higher levels of PTSD symptoms. Scores of 60 or above are generally considered clinically significant, and changes of 10 points or more (e.g., between pre-treatment and post-treatment) are considered clinically significant changes.	Pre-treatment, post-treatment, and 6-month follow-up

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Posttraumatic Cognitions Inventory (PTCI)	The PTCI is a self-report questionnaire about thoughts following traumatic events. There are 33 scored items, each with response categories from 1 (Totally Disagree) to 7 (Totally Agree), summed to create the total score. Thus, the total score ranges from 7 to 231. Higher scores reflect higher levels of negative cognitions.	Pre-treatment, post-treatment, and 6-month follow-up
State-Trait Anxiety Inventory State Scale (STAI-S)	The STAI-S is a self-report questionnaire about state (present state) anxiety. There are 20 scored items, each with response categories from 1 (Not at All) to 4 (Very Much So). Some items (e.g., "I feel calm") are reversed scored so that the total score appropriately reflects state anxiety. Thus, the total score ranges from 20 to 80. Higher scores reflect higher levels of state anxiety.	Pre-treatment, post-treatment, and 6-month follow-up
Sheehan Disability Scale (SDS)	The SDS is a self-report questionnaire about functioning. There are 3 scored items (Work/School; Social Life; and Family Life/Home Responsibilities), each with response categories from 0 (zero; Not at All) to 10 (Extremely). Thus, the total score ranges from 0 to 30. Higher scores reflect lower (poorer) levels of functioning.	Pre-treatment, post-treatment, and 6-month follow-up
Global Neuropsychological Deficits (Standardized, Composite)	Among our battery of seven neuropsychological tests, we worked with our neuropsychologist to choose 13 key scales. We used a conversion system to equally weight areas where there were large deficits, even if there were only one or two deficits, to prevent such scores from being minimized among the large range of T scores for the other scales. We converted T scores as follows: >40 = 0; 35-39 = 1; 30-34 = 2; 25-29 = 3; 20-24 = 4; < 20 = 5. Higher scores mean a higher global cognitive deficit.	Pre-treatment, post-treatment

Collaborators and Investigators

• Sponsor: US Department of Veterans Affairs
• Investigators: Principal Investigator: Steven R. Thorp, PhD, VA San Diego Healthcare System, San Diego

Publications and helpful links

General Publications

• Walter KH, Glassman LH, Wells SY, Thorp SR, Morland LA. The Impact of Depression Severity on Treatment Outcomes Among Older Male Combat Veterans with Posttraumatic Stress Disorder. J Trauma Stress. 2020 Jun;33(3):345-352. doi: 10.1002/jts.22503. Epub 2020 Mar 26.
• Thorp SR, Glassman LH, Wells SY, Walter KH, Gebhardt H, Twamley E, Golshan S, Pittman J, Penski K, Allard C, Morland LA, Wetherell J. A randomized controlled trial of prolonged exposure therapy versus relaxation training for older veterans with military-related PTSD. J Anxiety Disord. 2019 May;64:45-54. doi: 10.1016/j.janxdis.2019.02.003. Epub 2019 Feb 21.

Helpful Links

• Click here for more information about this study: Treatment of Older Veterans with Chronic Posttraumatic Stress Disorder

Study record dates

Study Major Dates

• Study Start: March 1, 2009
• Primary Completion (Actual): March 1, 2013
• Study Completion (Actual): March 1, 2013

Study Registration Dates

• First Submitted: October 2, 2007
• First Submitted That Met QC Criteria: October 3, 2007
• First Posted (Estimate): October 4, 2007

Study Record Updates

• Last Update Posted (Estimate): August 19, 2015
• Last Update Submitted That Met QC Criteria: August 11, 2015
• Last Verified: August 1, 2015

More Information

Terms related to this study

• Keywords: Elderly; Randomized Controlled Trial; Geriatrics; Psychotherapy; Cognitive- Behavior Therapy; Combat Disorders; Implosive therapy; Neuropsychological Test; Post-traumatic Stress Disorder; Relaxation techniques
• Additional Relevant MeSH Terms: Mental Disorders; Pathologic Processes; Trauma and Stressor Related Disorders; Disease; Stress Disorders, Traumatic; Stress Disorders, Post-Traumatic; Combat Disorders
• Other Study ID Numbers: CDA-2-009-07S

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No