PS-Trauma - Development of Trauma Treatment for Patients With Co-morbid Psychotic Disorders and Traumas

Nikolai Albert

Status: Enrolling

Conditions: Schizotypal Disorder; Post Traumatic Stress Symptoms; SCHIZOPHRENIA 1 (Disorder)

Treatments: Behavioral: EMDR; Behavioral: Prolonged Exposure

Study type: Interventional

Funder types: Other

Identifiers

NCT07242586

H-25038884

Details and patient eligibility

About

Overview:

People with psychotic disorders frequently have a history of traumatic events such as neglect, bullying, or physical and sexual abuse. Many experience significant symptoms of post-traumatic stress, but trauma-focused treatment is rarely offered in standard psychiatric care. This pilot study investigates whether two established trauma therapies can be delivered safely and acceptably to young adults with psychotic disorders receiving care in the OPUS early-intervention program.

Objectives:

The main aim is to evaluate the feasibility and acceptability of two trauma-focused treatments-Prolonged Exposure (PE) and Eye Movement Desensitization and Reprocessing (EMDR)-in patients with psychotic disorders and post-traumatic stress symptoms. The study is not designed to test treatment efficacy but to determine whether a larger randomized controlled trial is practical.

Study Design:

This is a pilot and feasibility study. Twenty OPUS patients with a diagnosis within the schizophrenia spectrum and clinically relevant PTSD symptoms will be randomly assigned to either PE or EMDR. All participants continue their usual OPUS care while attending weekly trauma-focused therapy sessions.

Assessments:

At baseline and follow-up, participants complete clinical interviews and questionnaires assessing trauma symptoms, psychotic symptoms, functioning, well-being, recovery experiences, and possible negative effects. Instruments include the PCL-5, CAPS-5, Mini-TALE, PANSS-6, PSP, WHO-5, Brief INSPIRE-O, NEQ, and CSQ.

Primary Feasibility Outcomes:

Recruitment: At least 80% of the planned sample enrolled within 6 months.

Retention: At least 70% completing ≥12 therapy sessions.

Acceptability: Participant satisfaction measured with the Client Satisfaction Questionnaire (CSQ).

Eligibility:

Inclusion:

Age ≥18

Diagnosis within the schizophrenia spectrum (ICD-10: F20-F29)

PTSD symptom score >31 on PCL-5

Current OPUS patient

Sufficient Danish language skills

Exclusion:

Substance use that prevents participation (e.g., attending sessions intoxicated)

Severe cognitive impairment

Recent changes in antipsychotic medication (within 1 month)

Risks and Safety:

Temporary increases in PTSD symptoms may occur when beginning trauma therapy; this pattern is well documented and typically followed by improvement. Previous studies show no higher risk of serious adverse events among patients with psychosis receiving trauma treatment compared with those who do not. Participants are closely monitored, and the study team works in continuous collaboration with OPUS clinicians. If a participant experiences significant clinical deterioration, the therapy can be paused or stopped, and supportive measures will be provided.

Potential Benefits:

Participants may experience a reduction in trauma-related symptoms and gain access to a treatment that is not otherwise routinely offered to patients with psychotic disorders. The study may help improve future care for this underserved population.

Funding:

The study is funded by the Nektar Foundation and conducted at the CORE Research Unit, Mental Health Services Copenhagen.

Full description

This pilot study evaluates the feasibility, acceptability, and procedural integrity of delivering trauma-focused psychotherapy to individuals with schizophrenia-spectrum disorders who exhibit clinically significant post-traumatic stress symptoms. Although traumatic experiences are common in this population, trauma-focused treatment remains underutilized in routine psychiatric services due to concerns regarding symptom destabilization, insufficient clinician training, and uncertainty about optimal therapeutic approaches. Emerging evidence indicates that established trauma-focused modalities-specifically Prolonged Exposure (PE) and Eye Movement Desensitization and Reprocessing (EMDR)-can be safely delivered in patients with psychosis when accompanied by close clinical monitoring. Nevertheless, feasibility and implementation data in early-intervention settings remain limited.

The present study is designed as a randomized, parallel-group feasibility trial conducted within the OPUS early-intervention program. The overarching aim is to determine whether a larger powered efficacy trial is practicable. The study systematically evaluates recruitment and retention rates, session attendance, intervention fidelity, acceptability, and the logistical compatibility of trauma-focused treatment with existing OPUS care structures. The pilot nature of the study means that statistical analyses are exploratory and focused on estimating parameters needed for the design of a subsequent definitive trial (e.g., variability of symptom change, pre-post correlations, and event rates).

Participants are randomized 1:1 to either PE or EMDR and receive up to 12 weekly individual sessions in addition to standard OPUS treatment. Therapists are certified in the respective modalities and receive protocol-specific supervision to ensure adherence. Treatment progression follows established manuals: PE focuses on imaginal and in-vivo exposure to trauma memories and avoided situations, whereas EMDR employs bilateral stimulation during structured processing of traumatic material. Both approaches incorporate ongoing risk monitoring, review of symptom trajectories, and coordination with OPUS clinicians.

Assessments are conducted at baseline and after treatment completion. Instruments include structured diagnostic interviews for trauma and psychosis, clinician-rated symptom scales, patient-reported outcomes (trauma symptoms, well-being, recovery experience), functioning measures, and standardized adverse-event reporting tools. Particular emphasis is placed on quantifying temporary symptom fluctuations often observed during trauma therapy, documenting any clinically significant deterioration, and evaluating whether such fluctuations differ across treatment arms.

Safety procedures include predetermined criteria for pausing or discontinuing therapy, rapid communication channels with OPUS teams, and access to supportive interventions when needed. Existing evidence suggests that trauma-focused treatment does not increase the risk of psychotic relapse or severe adverse events compared with non-exposed controls; the study therefore aims to replicate and refine these safety observations within the OPUS context.

Feasibility outcomes include: (1) proportion of eligible patients successfully recruited; (2) proportion of participants completing ≥12 sessions; (3) treatment adherence rated through fidelity checklists; (4) participant-reported acceptability and satisfaction; and (5) operational practicality, including therapist burden, integration with OPUS scheduling, and need for additional support structures. These metrics will inform the design parameters for a future multicenter randomized controlled trial.

Overall, this pilot study seeks to generate high-quality feasibility data on the integration of trauma-focused psychotherapy into early-intervention services for individuals with psychotic disorders. Findings will guide the refinement of recruitment strategies, safety procedures, intervention delivery, and outcome assessment protocols to support a subsequent adequately powered trial aimed at evaluating clinical efficacy.

Enrollment: 20 estimated patients

Sex: All

Ages: 18 to 35 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• over 18 years of age Diagnosis within schizophrenia spectrum (ICD10 F2X) PTSD symptoms equivalent to above 31 on the PCL-5 Included in Early intervention services (OPUS) Talks and understands Danish

Exclusion criteria

• Substance or alcohol abuse interfering with the therapy Indication of sever cognitive impairment Changes in antipsychotic treatment within the last month

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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20 participants in 2 patient groups

Prolonged Exposure

Active Comparator group

Description:

Prolonged Exposure (PE) Arm: Participants assigned to PE receive up to 12 weekly individual sessions delivered by trained clinicians following the standard PE manual. Treatment focuses on repeated, systematic confrontation with trauma-related memories (imaginal exposure) and avoided situations (in-vivo exposure) to reduce fear, distress, and maladaptive avoidance. Sessions include psychoeducation, breathing retraining, development of an exposure hierarchy, and structured review of homework assignments. Therapists monitor symptom fluctuations closely and coordinate with the OPUS clinical team. PE is provided in addition to participants' usual OPUS care, and all sessions follow predefined safety and fidelity procedures.

Treatment:

Behavioral: Prolonged Exposure

EMDR

Active Comparator group

Description:

Eye Movement Desensitization and Reprocessing (EMDR) Arm: Participants assigned to EMDR receive up to 12 weekly individual sessions delivered by certified EMDR therapists using the standard eight-phase protocol. Treatment targets distressing trauma memories through brief, repeated exposure combined with bilateral stimulation (e.g., eye movements or tactile taps) to facilitate adaptive information processing. Sessions include history taking, identification of target memories, assessment of negative and positive cognitions, desensitization, installation, and body scan procedures. Therapists monitor symptom changes throughout and coordinate with OPUS clinicians as needed. EMDR is provided alongside usual OPUS care, with adherence ensured through protocol-based supervision and fidelity checks.

Treatment:

Behavioral: EMDR