NCT06582225

Brief Summary

The purpose of this trial is to evaluate the clinical efficacy, the cost-effectiveness and the effect durability of a therapist-guided, internet-delivered cognitive-behavior therapy intervention for obsessive-compulsive disorder (OCD) in children and adolescents with autism. A process evaluation of the treatment will also be conducted.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
220

participants targeted

Target at P75+ for not_applicable

Timeline
19mo left

Started Nov 2024

Typical duration for not_applicable

Geographic Reach
1 country

3 active sites

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 Progress48%
Nov 2024Dec 2027

First Submitted

Initial submission to the registry

August 28, 2024

Completed
6 days until next milestone

First Posted

Study publicly available on registry

September 3, 2024

Completed
3 months until next milestone

Study Start

First participant enrolled

November 25, 2024

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2027

Last Updated

May 5, 2026

Status Verified

May 1, 2025

Enrollment Period

2.5 years

First QC Date

August 28, 2024

Last Update Submit

April 29, 2026

Conditions

Keywords

Obsessive-Compulsive DisorderAutism Spectrum DisorderExposure and Response PreventionCognitive-Behavioural TreatmentInternetGuided self-helpStress Management

Outcome Measures

Primary Outcomes (1)

  • Children's Yale-Brown Obsessive-Compulsive Scale (CY-BOCS)

    The CY-BOCS is a semi-structured clinician-administered scale used to assess the severity of OCD symptoms in children and adolescents. The scale consists of a checklist of obsessions and compulsions, 10 items assessing the severity of the OCD symptoms, and a series of ancillary items (e.g., level of insight, avoidance). Range: 0-40, lower scores mean better outcome.

    Baseline (week 0), post treatment (week 12), 3-months follow-up, 6-months follow up.

Secondary Outcomes (19)

  • Clinical Global Impression - Severity (CGI-S)

    Baseline (week 0), post treatment (week 12), 3-months follow-up, 6-months follow up.

  • Clinical Global Impression - Improvement (CGI-I)

    Post treatment (week 12), 3-months follow-up, 6-months follow up.

  • Treatment response and remission

    Post treatment (week 12), 3-months follow-up, 6-months follow up.

  • Children's Global Assessment Scale (CGAS)

    Baseline (week 0), post treatment (week 12), 3-months follow-up, 6-months follow up.

  • Obsessive-Compulsive Inventory - Child version - revised (OCI-CV-R)

    Baseline (week 0), during treatment (week 3, week 6, week 9), post treatment (week 12), 3-months follow-up, 6-months follow up.

  • +14 more secondary outcomes

Other Outcomes (11)

  • Demographic data - clinician-entered

    Baseline (week 0).

  • Demographic data - parent-reported

    Baseline (week 0).

  • Comorbid psychiatric disorders

    Baseline (week 0).

  • +8 more other outcomes

Study Arms (2)

Internet-delivered exposure and response prevention (I-ERP)

EXPERIMENTAL

A therapist-guided, internet-delivered exposure and response prevention (I-ERP) programme for children and adolescents with OCD and autism.

Behavioral: Internet-delivered exposure and response prevention (I-ERP)

Internet-delivered stress management (I-SM)

ACTIVE COMPARATOR

A therapist-guided, internet-delivered stress management (I-SM) programme for children and adolescents with OCD and autism.

Behavioral: Internet-delivered stress management (I-SM)

Interventions

The intervention is internet-delivered and therapist-guided, involving the child and at least one caregiver. It consists of two separate sets of modules, one for the child and one for the caregiver. The intervention consists of 12 modules, delivered over a maximum of 14 weeks. The treatment includes psychoeducation about ASD, OCD, emotions, healthy habits, the difference between repetitive behaviours in autism and OCD, how compulsions maintain the obsessions, and the rationale for ERP. The main focus of the treatment is ERP tasks based on the young person's individual goals. The modules also contain homework tasks that are meant to be completed between modules, mainly consisting of ERP. The final module includes a summary of the treatment and a relapse prevention plan. The version for parents consists of the same content as the child treatment, but with elaborated psychoeducation, and additional focus on strategies on how to assist their child in the different exposure tasks.

Internet-delivered exposure and response prevention (I-ERP)

The intervention is internet-delivered and therapist-guided, involving the child and at least one caregiver. It consists of two separate sets of modules, one for the child and one for the caregiver. The intervention consists of 12 modules, delivered over a maximum of 14 weeks. The treatment includes psychoeducation about ASD, OCD, healthy habits, and how stress is a contributor to OCD symptoms. The rationale is that targeting and reducing stress will have a beneficial impact on anxiety, obsessions, and compulsions. The main goal of the treatment is to learn how to reduce stress, mainly by using relaxation techniques such as deep breathing, progressive muscle relaxation, and imagery (cognitive) relaxation. The modules also contain homework tasks that are meant to be completed between modules, mainly consisting of relaxation tasks. The version for parents contains psychoeducation, as well as strategies on how to assist their child in the different relaxation tasks.

Internet-delivered stress management (I-SM)

Eligibility Criteria

Age7 Years - 17 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • A diagnosis of autism, based on the diagnostic criteria of the 4th or 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM) or the 10th edition of the International Classification of Diseases (ICD-10). Informed by the parent/caregiver and subsequently confirmed by review of the medical record or the neurodevelopmental assessment report. A diagnosis of autism will be considered present if it was established with validated instruments, such as the Autism Diagnostic Interview-Revised (ADI-R), the Autism Diagnostic Observation Schedule (ADOS) edition 1 or 2 or the Diagnostic Interview for Social and Communication Disorders (DISCO; autism or ASD cut-offs).
  • Age between 7 and 17 years. Confirmed by the caregiver and subsequently by the medical record system.

You may not qualify if:

  • Global intellectual disability. Informed by the parent/caregiver and subsequently confirmed by review of the medical record or the neurodevelopmental assessment report, and additionally estimated with the two subtests matrix reasoning and similarities from the Wechsler Intelligence Scale for Children - fifth edition (WISC-V) or Wechsler Adult Intelligence Scale - fourth edition (WAIS-IV).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Forskningsmottagning barn- och ungdomspsykiatri Lund

Lund, Skåne County, 222 41, Sweden

RECRUITING

Child and Adolescent Psychiatry Research Center

Stockholm, Stockholm County, 113 30, Sweden

RECRUITING

BUP Specialmottagning

Gothenburg, Västra Götalandsregionen, 411 14, Sweden

RECRUITING

MeSH Terms

Conditions

Obsessive-Compulsive DisorderAutism Spectrum Disorder

Condition Hierarchy (Ancestors)

Anxiety DisordersMental DisordersChild Development Disorders, PervasiveNeurodevelopmental Disorders

Study Officials

  • David Mataix-Cols

    Karolinska Institutet

    PRINCIPAL INVESTIGATOR

Central Study Contacts

David Mataix-Cols

CONTACT

Moa Warnström

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
All study personnel who can be blind to study aims/hypotheses and group allocation, will be blind. Assessors conducting post-treatment and follow-up assessments will be external to the research team and blind to study aims/hypotheses and treatment allocation for the full duration of the trial (up to the 6-month follow-up). The assessors will not receive any information about the study design, objectives or treatment conditions in order to maximise the blinding integrity. At each follow-up assessment, participants will be reminded by their assessor to not reveal details about their treatment.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Multisite parallel-group randomised controlled superiority trial.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

August 28, 2024

First Posted

September 3, 2024

Study Start

November 25, 2024

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

December 1, 2027

Last Updated

May 5, 2026

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will not share

Locations