NCT05934175

Brief Summary

The goal of this clinical trial is to compare a novel, massed treatment format of prolonged exposure to gold standard trauma focused cognitive behavioral therapy (weekly delivered prolonged exposure) for post-traumatic stress disorder. The objective with this study is to investigate efficacy, mechanisms of change and cost effectiveness of intensive prolonged exposure (I-PE) in regular Swedish psychiatric care. Adult patients with post-traumatic stress disorder will be randomly assigned to receive either gold standard prolonged exposure weekly for 15 weeks or 5 days of intensive treatment with the addition of three booster sessions dispersed 1, 2 and 4 weeks after completion of the massed treatment period.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
140

participants targeted

Target at P50-P75 for not_applicable

Timeline
3mo left

Started Sep 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress92%
Sep 2023Aug 2026

First Submitted

Initial submission to the registry

June 26, 2023

Completed
10 days until next milestone

First Posted

Study publicly available on registry

July 6, 2023

Completed
2 months until next milestone

Study Start

First participant enrolled

September 4, 2023

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 20, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

August 20, 2026

Expected
Last Updated

December 7, 2023

Status Verified

December 1, 2023

Enrollment Period

2 years

First QC Date

June 26, 2023

Last Update Submit

December 6, 2023

Conditions

Keywords

PTSDintensive treatmentprolonged exposuremassed treatment

Outcome Measures

Primary Outcomes (1)

  • Change in PTSD symptoms as assessed by the Clinician Administered PTSD Scale (CAPS-5)

    The CAPS-5 is structured interview that assesses the Diagnostic and Statistical Manual of Mental Disorders version 5 (DSM-5) criteria for PTSD (Weathers et al., 2013). Each item is rated on a severity scale ranging from 0 (Absent) to 4 (Extreme/incapacitating) and combines information about frequency and intensity for each of the 20 symptoms. Total Score (Range 0-80 with higher scores representing more PTSD symptoms.

    Baseline, 1-month (primary endpoint), 6-month and 12-month post-treatment

Secondary Outcomes (10)

  • Change in PTSD symptoms as assessed by the PTSD Check List - DSM-5 (PCL-5)

    Baseline, through the treatment period up to 15 weeks after inclusion and at 1-month, 6-month and 12-month post-treatment

  • Change in ICD-11 PTSD and complex PTSD symptoms as assessed by the International Trauma Questionnaire (ITQ).

    Baseline, through the treatment period and 1-month, 6-month and 12-month post-treatment

  • Change in depressive symptoms as measured by the Patient Health Questionnaire-9 (PHQ-9)

    Baseline, immediately after treatment completion, 1-month, 6-month and 12-month post-treatment

  • Change in quality of life measured by Euroqol, EQ-5D

    Baseline, immediately after treatment completion, 1-month, 6-month and 12-month post-treatment

  • Change in Assessing Quality of Life 6 Dimensions (AQoL-6D)

    Baseline, immediately after treatment completion, 1-month, 6-month and 12-month post-treatment

  • +5 more secondary outcomes

Other Outcomes (4)

  • Differences in treatment credibility between arms

    Immediately after the first treatment session

  • Differences in experience of working alliance between arms

    Immediately after the third treatment session

  • Adherence to treatment measured by the Therapist Adherence and Competence Rating Scale for prolonged exposure

    Gold standard PE: Each treatment session up to week 15. Intensive PE: Each treatment session up to week 5

  • +1 more other outcomes

Study Arms (2)

Intensive treatment with prolonged exposure

EXPERIMENTAL

Intensive prolonged exposure delivered for five consecutive days comprising nine individual sessions and five group sessions followed by three individual session one, two and four weeks afterwards.

Behavioral: Intensive treatment with prolonged exposure

Weekly delivered prolonged exposure

ACTIVE COMPARATOR

15 weekly delivered, individual prolonged exposure sessions (gold standard treatment)

Behavioral: Weekly delivered prolonged exposure

Interventions

Intensive treatment with prolonged exposure

Intensive treatment with prolonged exposure

Weekly delivered prolonged exposure sessions for 15 weeks

Weekly delivered prolonged exposure

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years of age or above,
  • Primary PTSD diagnosis
  • Fluent in Swedish
  • Sign informed consent
  • Able to attend either I-PE or 15 weekly sessions of PE

You may not qualify if:

  • Initiation or adjustment of any psychotropic medication within the last 4 weeks prior to commencement of treatment
  • Serious mental health symptoms, such as mania, psychosis, alcohol, or substance use disorders or current suicide risk warranting immediate clinical attention
  • Ongoing evidence-based trauma-focused psychological treatment
  • Ongoing trauma-related threat (e.g. living with a violent spouse)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Traumaprogrammet, Psykiatri Sydväst

Stockholm, Sweden

RECRUITING

Related Publications (1)

  • Bragesjo M, Fina B, Ivanova E, Ivanov VZ, Ruck C. Study protocol for a single-blind, parallel-group, randomized, controlled superiority trial of intensive versus weekly delivered prolonged exposure for adults with post-traumatic stress disorder. Trials. 2024 Jun 12;25(1):381. doi: 10.1186/s13063-024-08218-2.

MeSH Terms

Conditions

Stress Disorders, Post-Traumatic

Condition Hierarchy (Ancestors)

Stress Disorders, TraumaticTrauma and Stressor Related DisordersMental Disorders

Central Study Contacts

Maria Bragesjö, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Blinded assessors are used
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Prolonged exposure will be offered in a massed format with a total of nine 60 minutes sessions of imaginal exposure and processing and five 2 hour group session with psychoeducation, rationales and in vivo exposure during one treatment week followed by three individual 60 minutes sessions 1, 2 and 4 weeks afterwards.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical psychologist, PhD

Study Record Dates

First Submitted

June 26, 2023

First Posted

July 6, 2023

Study Start

September 4, 2023

Primary Completion

August 20, 2025

Study Completion (Estimated)

August 20, 2026

Last Updated

December 7, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

Locations