Group vs. Individual Cognitive Processing Therapy for Combat-related PTSD

March 22, 2017 updated by: Patricia Resick, Duke University
The purpose of this study is to conduct a randomized controlled trial to compare group and individual CPT-C for the treatment of PTSD in OIF/OEF military personnel.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Estimates indicate that between 100,000 and 300,000 Operation Iraqi Freedom (OIF) and Operation Enduring Freedom (OEF) veterans are at significant risk for chronic post-traumatic stress disorder (PTSD), which can become a chronic disorder that impacts all areas of a person's life. PTSD treatment programs are being developed throughout the Department of Defense (DoD) and the Veterans Affairs (VA), but because of the large number of Service Members returning from deployment with PTSD, it is often necessary to provide psychotherapy in groups. Cognitive Processing Therapy (CPT), an evidence-based treatment for PTSD, was originally developed as a group-based intervention. However, group-based CPT treatment has never been systematically compared to individual CPT treatment. The public policy implications of the results of this trial are significant. If both treatment formats are equivalent or if group treatment is better, then group treatment would be a more efficient and cost-effective therapy modality in most cases. On the other hand, if individual therapy is found to be superior, the investment of greater resources into individual therapy will be justified in order to provide the most effective treatment for PTSD to military personnel. The purpose of this study is to compare group-administered CPT-Cognitive-only version (CPT-C) to individual CPT-C for the treatment of PTSD in OIF/OEF military personnel. Three hundred (300) adult male and female active-duty OIF/OEF military personnel over 18 years of age will be enrolled into this study. Participants will be randomized between group and individual CPT-C.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
300

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Texas
      • Fort Hood, Texas, United States, 76544
        • Fort Hood Army Base

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult male and female active duty, activated Reservist, or activated National Guard OIF/OEF military personnel or OIF/OEF veterans seeking treatment for PTSD
  • Diagnosis of PTSD determined by a clinician-administered Posttraumatic Stress Scale (PSSI)
  • Person has experienced a Criterion A event that is a specific combat-related event or high magnitude operational experience that occurred during a military deployment in support of OIF/OEF. The diagnosis of PTSD may be indexed to that event or to another Criterion A event.
  • Be over the age of 18
  • Speak and read English
  • Be stable on any psychotropic medications they may be taking.

Exclusion Criteria:

  • Current suicide or homicide risk meriting crisis intervention
  • Active psychosis
  • Moderate to severe brain damage (as determined by the inability to comprehend the baseline screening questionnaires)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

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

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Group Cognitive Processing Therapy-Cognitive Only
Behavioral: Group Cognitive Processing Therapy-Cognitive Only
Cognitive Processing Therapy-Cognitive Only version (CPT-C) is an evidence-based form of Cognitive Behavioral Therapy (CBT) used to treat PTSD. CPT-C is a 12-session manualized program that focuses on challenging beliefs and assumptions related to the trauma, oneself, and the world. Sessions will be conducted in groups of 8-12 participants. Sessions will be conducted twice weekly for six weeks; each session is 90 minutes.
Other Names:
  • Group CPT-C
Experimental: Individual Cognitive Processing Therapy-Cognitive Only
Behavioral: Individual Cognitive Processing Therapy-Cognitive Only
Cognitive Processing Therapy-Cognitive Only (CPT-C) is an evidence-based form of Cognitive Behavioral Therapy (CBT) used to treat PTSD. CPT is a 12-session manualized program that focuses on challenging beliefs and assumptions related to the trauma, oneself, and the world. Individual sessions will be conducted twice weekly for six weeks; each session is 60 minutes.
Other Names:
  • Individual CPT-C

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change from baseline in PTSD symptoms as measured by thePosttraumatic Stress Disorder Checklist-Stressor-specific Version (PCL-S)
Time Frame: Baseline, weekly during treatment, posttreatment, 6-month and 12-month follow-up
PCL-S measures symptoms of posttraumatic stress disorder in response to a specific stressor.
Baseline, weekly during treatment, posttreatment, 6-month and 12-month follow-up

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change from baseline in depressive symptoms as measured by the Beck Depression Inventory-II
Time Frame: Baseline, weekly during treatment, posttreatment, 6-month, and 12-month follow-up
The BDI-II is one of the most widely used instruments for measuring the severity of depressive symptoms. It consists of 21 items that assess both affective and somatic symptoms related to depression and depressive disorders. Each item is composed of four statements that reflect symptom severity. The statements are scaled from 0 (no disturbance) to 3 (maximal disturbance). Scores on all items are summed to obtain a total severity score.
Baseline, weekly during treatment, posttreatment, 6-month, and 12-month follow-up

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Duke University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
The University of Texas Health Science Center at San Antonio
VA Boston Healthcare System
STRONG STAR Consortium

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Patricia A Resick, PhD, ABPP, Duke University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2016

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 1, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 19, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 23, 2014

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 25, 2014

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 27, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 22, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • W81XWH-08-2-0116-1

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