NCT03260127

Brief Summary

This study focuses on helping Iraq and Afghanistan Veterans with posttraumatic stress disorder (PTSD) benefit fully from therapy by first enhancing their thinking abilities. PTSD has been associated with thinking problems, including difficulty planning/organizing, thinking flexibly, and inhibiting distracting emotional information. There is some evidence that computerized training programs are helpful for improving thinking. Therefore, this study tests whether computerized cognitive training will in fact improve individuals' thinking abilities and if this will in turn improve PTSD treatment outcomes and lead to more individuals completing treatment and showing greater improvements in emotional symptoms and quality of life than standard therapy (when paired with a word training condition).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
82

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 9, 2017

Completed
15 days until next milestone

First Posted

Study publicly available on registry

August 24, 2017

Completed
10 months until next milestone

Study Start

First participant enrolled

July 2, 2018

Completed
4.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2022

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2022

Completed
1.4 years until next milestone

Results Posted

Study results publicly available

April 1, 2024

Completed
Last Updated

April 1, 2024

Status Verified

September 1, 2023

Enrollment Period

4.2 years

First QC Date

August 9, 2017

Results QC Date

September 29, 2023

Last Update Submit

September 29, 2023

Conditions

Keywords

PTSDtreatmentposttraumatic stress disordertherapycognitionthinkingexecutive functioncomputertraining

Outcome Measures

Primary Outcomes (7)

  • Wisconsin Card Sorting Test (WCST)

    Wisconsin Card Sorting Test (WCST) is a neuropsychological measure of executive functioning, will be examined separately as well as in a composite with the other neuropsychological measures of executive functioning, range: -22 to 15, higher scores mean a worse outcome

    change from baseline to completion of computerized cognitive training (6 weeks)

  • Paced Auditory Serial Addition Test (PASAT)

    Paced Auditory Serial Addition Test (PASAT) is a neuropsychological measure of executive functioning, will be examined separately as well as in a composite with the other neuropsychological measures of executive functioning, range: -22 to 47, higher scores mean a better outcome

    change from baseline to completion of computerized cognitive training (6 weeks)

  • Delis Kaplan Executive Function System (D-KEFS)

    Delis Kaplan Executive Function System (D-KEFS) is a neuropsychological measure of executive functioning, will be examined separately as well as in a composite with the other neuropsychological measures of executive functioning, range: -39 to 27, higher scores mean a worse outcome

    change from baseline to completion of computerized cognitive training (6 weeks)

  • Behavior Rating Inventory of Executive Function (BRIEF)

    Behavior Rating Inventory of Executive Function (BRIEF) is a self-report measure of executive functioning, items are summed to create a total score, range: -32 to 30, higher scores mean a worse outcome

    change in subjective executive functioning from baseline to completion of computerized cognitive training (6 weeks)

  • WAIS-IV Digit Span Sequencing Subtest

    Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV) Digit Span Sequencing subtest is a neuropsychological measure of executive functioning, will be examined separately as well as in a composite with the other neuropsychological measures of executive functioning, range: -3 to 3, higher scores mean a better outcome

    change from baseline to completion of computerized cognitive training (6 weeks)

  • N-Back Task Performance

    N-Back is a task that tests executive functioning, range: -.25 to .28, higher scores means a better outcome

    change from baseline to completion of computerized cognitive training (6 weeks)

  • Go/No-Go Task Performance

    Go/No-Go is a task that tests executive functioning, range: -.04 to .02, higher scores mean a worse outcome

    change from baseline to completion of computerized cognitive training (6 weeks)

Secondary Outcomes (5)

  • Clinician-Administered PTSD Scale for DSM 5 (CAPS-5)

    change in PTSD symptoms from baseline to completion of Cognitive Processing Therapy (12 sessions completed after cognitive training), approximately 12 weeks after baseline assessment

  • PTSD Checklist for DSM-5 (PCL-5)

    change in PTSD symptoms from baseline to completion of Cognitive Processing Therapy (12 sessions completed after cognitive training), approximately 12 weeks after baseline assessment

  • World Health Organization Quality of Life - BREF

    change in quality of life from baseline to completion of Cognitive Processing Therapy (12 sessions completed after cognitive training), approximately 12 weeks after baseline assessment

  • Time (in Minutes) Spent Completing Cognitive Processing Therapy Homework

    time (in minutes) spent completing homework from CPT session 1 to CPT session 12 (across approximately 6 weeks, weeks 7-12 after baseline)

  • Number of CPT Sessions Completed

    CPT sessions completed (out of a possible 12) after completing the cognitive training (across approximately 6 weeks, weeks 7-12 after baseline)

Study Arms (2)

CEFT-CPT

EXPERIMENTAL

Computerized executive function training plus Cognitive Processing Therapy for PTSD

Behavioral: Computerized executive function training plus CPT (CEFT-CPT)

WT-CPT

ACTIVE COMPARATOR

Word game training plus Cognitive Processing Therapy for PTSD

Behavioral: Word game training plus CPT (WT-CPT)

Interventions

Participants randomized to the CEFT-CPT arm will receive 6 weeks of computerized executive function training and then 6 weeks of standard Cognitive Processing Therapy for PTSD (total of 12 sessions)

CEFT-CPT

Participants randomized to the WT-CPT arm will receive 6 weeks of computerized word game training and then 6 weeks of standard Cognitive Processing Therapy for PTSD (total of 12 sessions)

WT-CPT

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Operation Enduring Freedom/Operation Iraqi Freedom (OEF/OIF) Veterans enrolled at Veterans Affairs San Diego Healthcare System (VASDHS)
  • aged 18-55
  • current posttraumatic stress disorder (PTSD) diagnosis
  • endorsement of cognitive complaints
  • no pending medication changes
  • English-speaking.

You may not qualify if:

  • active substance use disorder in the last month
  • suicidal intent or attempt within the last month
  • schizophrenia, psychotic disorder and/or bipolar disorder
  • dementia
  • premorbid IQ \< 70
  • participation in other concurrent PTSD intervention studies
  • previous completion of more than 4 Cognitive Processing Therapy (CPT) sessions
  • history of a documented neurological disorder (e.g., Parkinson's disease, multiple sclerosis, epilepsy)
  • moderate to severe traumatic brain injury (TBI) (i.e., loss of consciousness greater than 30 minutes or post-traumatic amnesia greater than 24 hours).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

VA San Diego Healthcare System, San Diego, CA

San Diego, California, 92161, United States

Location

MeSH Terms

Conditions

Stress Disorders, Post-Traumatic

Interventions

2-cyclohexylidenhydrazo-4-phenyl-thiazole

Condition Hierarchy (Ancestors)

Stress Disorders, TraumaticTrauma and Stressor Related DisordersMental Disorders

Results Point of Contact

Title
Laura Crocker
Organization
VA San Diego Healthcare System

Study Officials

  • Laura D. Crocker, PhD

    VA San Diego Healthcare System, San Diego, CA

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 9, 2017

First Posted

August 24, 2017

Study Start

July 2, 2018

Primary Completion

September 30, 2022

Study Completion

October 31, 2022

Last Updated

April 1, 2024

Results First Posted

April 1, 2024

Record last verified: 2023-09

Data Sharing

IPD Sharing
Will share

A de-identified, anonymized dataset will be created and shared. Requests for access must be made in writing signed by a requestor from the United States and include an email address for delivery and an assurance that the recipient will not attempt to identify or re-identify any individual. The request should reference the publication underlying the request. Requests may be made to the Principal Investigator/lead point-of-contact for the publication. If the investigator leaves the VA San Diego Healthcare System, the requests may be sent to the Associate Chief of Staff for Research.

Locations