NCT05906069

Brief Summary

In the current study, the investigators will characterize obsessive-compulsive disorder (OCD) patients and healthy controls with a comprehensive clinical and neuroimaging assessment, focusing on the basic psychological processes related and on the neurobiological underpinnings of emotion regulation (ER). After a baseline assessment, the investigators will implement an internet-based cognitive behavioral therapy (iCBT) protocol and assess its efficacy on the modulation of ER and OCD severity. Specifically, the investigators will (1) examine to what extent the iCBT intervention modulates ER and the associated neurobiological mechanisms and (2) identify candidate biomarkers of successful treatment response.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 2, 2023

Completed
14 days until next milestone

First Submitted

Initial submission to the registry

May 16, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

June 15, 2023

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2025

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

January 27, 2025

Status Verified

January 1, 2025

Enrollment Period

2.3 years

First QC Date

May 16, 2023

Last Update Submit

January 22, 2025

Conditions

Keywords

obsessive-compulsive disorderocdneuroimagingemotion regulationinternet-based cognitive behavioral therapy

Outcome Measures

Primary Outcomes (1)

  • Change in the Yale-Brown Obsessive Compulsive Scale (Y-BOCS)

    Psychometric scale to assess obsessive-compulsive symptoms

    immediately before and immediately after intervention/waitlist

Secondary Outcomes (11)

  • Obsessive-Compulsive Inventory- Revised

    baseline; 4 weeks after beginning intervention/waitlist; 8 weeks after beginning; 12 weeks after beginning intervention/waitlist and immediately after intervention/waitlist

  • Hamilton Anxiety Scale

    immediately before and immediately after intervention/waitlist

  • Hamilton Depression Scale

    immediately before and immediately after intervention/waitlist

  • Perceived Stress Scale

    immediately before and immediately after intervention/waitlist

  • Emotion Regulation Questionnaire

    immediately before and immediately after intervention/waitlist

  • +6 more secondary outcomes

Study Arms (2)

iCBT intervention

EXPERIMENTAL

Participants will enroll in an internet-based cognitive behavioral program during 14 weeks. The program comprises 10 modules and three videoconferencing psychotherapy sessions.

Behavioral: ICBT

Wait list

NO INTERVENTION

Participants will be enrolled in the iCBT program after 14 weeks

Interventions

ICBTBEHAVIORAL

The intervention will consist in a structured internet-based intervention with 10 modules that will combine cognitive-behavioral techniques to improve obsessive-compulsive symptoms as well as the emotion regulation ability.

iCBT intervention

Eligibility Criteria

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

You may qualify if:

  • Primary diagnosis of current OCD according to the fifth Diagnostic and Statistical Manual of Mental Disorders
  • YBOCS score ≥ 16
  • Have the resources to access the online intervention (internet access; computer or tablet)

You may not qualify if:

  • MRI contraindications
  • Prior medical history of neurological disorders or traumatic brain injury
  • Having performed CBT treatment for OCD in the last 2 years
  • Undergoing any psychological treatment
  • Suicidal ideation
  • Current alcohol or drug abuse

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Life and Health Sciences Research Institute, School of Medicine, University of Minho

Braga, Gualtar, 4710-057, Portugal

RECRUITING

MeSH Terms

Conditions

Obsessive-Compulsive DisorderCompulsive Personality DisorderEmotional Regulation

Condition Hierarchy (Ancestors)

Anxiety DisordersMental DisordersPersonality DisordersSelf-ControlSocial BehaviorBehavior

Study Officials

  • Pedro Morgado, M.D, Ph.D.

    Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Pedro Morgado, M.D, Ph.D.

CONTACT

Mafalda Sousa, M., Sc.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The psychologist performing the assessment of the main psychometric outcomes will be blind to the group allocation of each participant.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: OCD patients will be randomly allocated into two groups - iCBT group (experimental group) and wait list group (comparator control group). The experimental group will receive a 14-week iCBT intervention program and the wait list group will receive the same intervention but at a later time.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Assistant Professor, M.D., Ph.D.

Study Record Dates

First Submitted

May 16, 2023

First Posted

June 15, 2023

Study Start

May 2, 2023

Primary Completion

September 1, 2025

Study Completion

December 1, 2025

Last Updated

January 27, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations