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Exploring Mechanisms of Massed Cognitive Processing Therapy

Exploring Mechanisms of Massed Cognitive Processing Therapy: A Randomized Controlled Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05265039
Enrollment
140
Registered
2022-03-03
Start date
2022-04-26
Completion date
2026-12-31
Last updated
2026-02-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

PTSD

Brief summary

The overall goal of this randomized controlled trial with partial crossover is to compare the effectiveness of 1-week virtual massed Cognitive Processing Therapy (CPT) to 5-day virtual relaxation training (RT) with regard to their ability to reduce posttraumatic stress disorder (PTSD) symptoms. Specifically, this study is designed to 1) examine changes in PTSD symptoms during and following the respective intervention, and 2) explore possible psychological treatment mechanisms, including cognitive control, inhibition, self-efficacy, and memory, and 3) examine possible moderators of treatment success (e.g. neuropsychological factors).

Interventions

BEHAVIORALCognitive Processing Therapy

An evidence-based treatment for posttraumatic stress disorder (PTSD)

BEHAVIORALRelaxation Training

Guided relaxation

Sponsors

Rush University Medical Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Are fluent in English * Have experienced a Criterion A traumatic event during their lifetime * Have a PTSD diagnosis verified via the Clinician Administered PTSD Scale for DSM * Are interested in receiving evidence-based treatment (CPT) for PTSD and able to attend either 10 therapy sessions over the course of one week (5 days) or are interested and able to complete 5 relaxation training sessions over the course of one week (5 days) * Are willing and able to complete self-report measures and clinician-rated assessments at multiple time points over the course of the study * Reside in the state of Illinois during the course of treatment

Exclusion criteria

1. The traumatic event occurred in the past month 2. They are currently suicidal or homicidal (i.e., plan and intent) 3. They have unmanaged psychosis or mania 4. They have not been on a stable dose of psychotropic medication for at least one month by the time of the baseline assessment 5. They have completed an evidence-based cognitive behavioral PTSD treatment (e.g., Cognitive Processing Therapy or Prolonged Exposure) in the past 3 months or are currently receiving an evidence-based PTSD treatment 6. They have an intellectual disability or significant cognitive impairment that would prevent them from engaging in CPT 7. They have a serious or unstable medical illness or instability for which hospitalization may be likely within the next year 8. They have an active substance use disorder (within the past 3 months) that would require immediate medical observation if substance use was discontinued (i.e., potential lethality) 9. They are involved with current legal actions related to the traumatic event that is anticipated to be targeted during treatment 10. They have a visual or auditory impairment that would prevent them from fully participating in study activities 11. Subjects who, at the time of consent, appear to have extenuating life circumstances (e.g., unstable housing, no internet access, etc.) which, in the judgement of the Principal Investigator, could affect the ability to deliver the intervention with fidelity

Design outcomes

Primary

MeasureTime frameDescription
Clinician-Administered PTSD Scale for DSMThrough study completion, an average of 8 monthsClinician-Administered Assessment of PTSD
PTSD Checklist for DSM-5 CriteriaThrough study completion, an average of 8 monthsSelf Report Measure for PTSD

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026