NCT07105345

Exploring Efficacy of Multi-Mode Cognitive Processing Therapy (CPT) for PTSD

Efficacy of Multi-Modal Cognitive Processing Therapy for PTSD: A Longitudinal, Multicenter, Single-Blind RCT on Symptoms, Sleep, Anxiety, Depression, Remission, and Posttraumatic Growth

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 60 (estimated)
• Sponsor: Far Eastern Memorial Hospital · Academic / Other
• Sex: All
• Age: 20 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

This study is a longitudinal, multicenter, single-blind, two-arm randomized controlled trial designed to evaluate the effectiveness of Multi-Modal Cognitive Processing Therapy (MMCPT) for individuals with posttraumatic stress disorder (PTSD). Participants will be randomly assigned to either the intervention group receiving MMCPT or a control group receiving treatment-as-usual (TAU). The intervention follows the standard CPT manual developed by Resick and consists of twelve weekly 90-minute individual sessions. The primary outcomes include PTSD symptom severity assessed by the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) and the PTSD Checklist for DSM-5 (PCL-5). Secondary outcomes include sleep quality (actigraphy, PSQI), anxiety (STAI), depression (HDRS-17), remission rate, and posttraumatic growth (PTGI). Assessments will occur at baseline, mid-treatment, post-treatment, and at 3-, 6-, 9-, and 12-month follow-ups.

Detailed description

This clinical trial aims to construct and evaluate a multi-modal Cognitive Processing Therapy (MMCPT) model and examine its long-term effects on PTSD symptoms, sleep, anxiety, depression, remission, and posttraumatic growth. The study employs a longitudinal, multicenter, single-blind randomized controlled design with two parallel arms. Participants diagnosed with PTSD at psychiatric outpatient clinics will be randomized to either MMCPT or TAU. The MMCPT follows the CPT manual developed by Resick and includes twelve 90-minute weekly individual sessions delivered by fully trained therapists. The primary outcomes are PTSD symptom severity measured by CAPS-5 and PCL-5. Secondary outcomes include sleep quality measured via actigraphy and the Pittsburgh Sleep Quality Index (PSQI), anxiety levels via the State-Trait Anxiety Inventory (STAI), depression severity via the Hamilton Depression Rating Scale (HDRS-17), remission rate via CAPS-5 and PCL-5, and posttraumatic growth via the Posttraumatic Growth Inventory (PTGI). Assessments are scheduled at seven time points: pre-treatment, mid-treatment (after session 6), post-treatment (after session 12), and follow-up at 3, 6, 9, and 12 months. The study also includes training and supervision of therapists and evaluators, as well as rigorous monitoring of allocation concealment, treatment fidelity, dropout, medication use, blinding, and adverse events.

Conditions

• Posttraumatic Stress Disorder

Interventions

Type	Name	Description
BEHAVIORAL	Cognitive Processing Therapy (CPT)	Participants will receive 12 weekly 90-minute individual sessions of Cognitive Processing Therapy (CPT) following the Resick manual. The intervention includes cognitive restructuring, trauma-related belief processing, and structured behavioral assignments. Sessions are delivered by trained therapists.
OTHER	Treatment as Usual (TAU)	Participants will receive routine outpatient psychiatric care as determined by clinicians. This may include medication, general supportive therapy, or psychoeducation, but will not include structured CPT sessions.

Timeline

• Start date: 2025-09-01
• Primary completion: 2027-06-30
• Completion: 2027-12-31
• First posted: 2025-08-05
• Last updated: 2026-03-20

Locations

2 sites across 1 country: Taiwan