NCT04071990

Brief Summary

With a lifetime prevalence of 1-3% Obsessive-Compulsive Disorder (OCD) is a chronic and disabling psychiatric disorder with considerable burden for the individual and society. Cognitive-behavioural group therapy (CBGT) is effective in reducing the intensity of OCD symptoms and it improves the OCD patient's quality of life. There is also growing evidence that family accommodation (FA) maintains and/or facilitates OCD symptoms, reinforces fear and avoidance behaviours in patients with OCD and is associated with family burden. Considering the promising results of involvement of family in CBGT on OCD symptoms and FA, the current study aims at investigating the effects of the involvement of the family in a 12-week CBGT protocol on the OCD symptoms, FA, burden, QOL, anxiety and depressive symptoms in OCD patients and their live-in relatives. Eighty patients with OCD and their live-in family members (partner, parent, sibling, …) between 18-65 years old will be included in this randomized controlled trial. Patients and family members will be randomly assigned to CBGT with the involvement of family or to CBGT without involvement of family. The primary goal of this study is to evaluate the effects of the involvement of live-in family members during a 12-week CBGT on OCD symptomatology and family accommodation during a 12-month follow-up period. In a secondary stage, we will explore whether the involvement of live-in family members during a 12-week CBGT will ameliorate anxiety and depressive symptoms, QOL, family functioning and burden in the patients and their live-in family.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Sep 2019

Longer than P75 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

First Submitted

Initial submission to the registry

August 2, 2019

Completed
26 days until next milestone

First Posted

Study publicly available on registry

August 28, 2019

Completed
6 days until next milestone

Study Start

First participant enrolled

September 3, 2019

Completed
6.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

September 19, 2024

Status Verified

September 1, 2024

Enrollment Period

6.3 years

First QC Date

August 2, 2019

Last Update Submit

September 5, 2024

Conditions

Keywords

Family based interventionCognitive behavioral group therapyExposure and response preventionFamily accommodation

Outcome Measures

Primary Outcomes (2)

  • Faster decrease and longer lasting improvement (less relapse) of OCD symptoms in patients

    Improvement of OCD symptoms will be measured by the Y-BOCS

    Y-BOCS will be completed at four time-points: at inclusion, after completion of the CBGT (an average of 3 months post baseline) and at 6 and 12 months post CBGT

  • Faster decrease and longer lasting improvement of family accommodation in family members

    Improvement of family accommodation will be measured by the family accommodation scale (FAS)

    The Family Accommodation Scale (FAS) will be completed at four time-points: at inclusion, after completion of the CBGT (an average of 3 months post baseline) and at 6 and 12 months post CBGT

Secondary Outcomes (7)

  • A reduction in anxiety and depression in patients and family members

    The HADS will be completed at four time-points: at inclusion, after completion of the CBGT (an average of 3 months post baseline) and at 6 and 12 months post CBGT

  • Increase of quality of life (QOL) in patients

    The WHOQOL-BREF will be completed at four time-points: at inclusion, after completion of the CBGT (an average of 3 months post baseline) and at 6 and 12 months post CBGT

  • An improvement in family functioning measured by the SCORE-15 in patients and family members

    The SCORE-15 will be completed at four time-points: at inclusion, after completion of the CBGT(an average of 3 months post baseline) and at 6 and 12 months post CBGT

  • An improvement in family functioning measured by the BPNSFS in patients and family members

    The BPNSFS will be completed at four time-points: at inclusion, after completion of the CBGT (an average of 3 months post baseline) and at 6 and 12 months post CBGT

  • An improvement in family functioning measured by the perceived criticism measure (PCM) in patients and family members

    The PCM will be completed at four time-points: at inclusion, after completion of the CBGT (an average of 3 months post baseline) and at 6 and 12 months post CBGT

  • +2 more secondary outcomes

Study Arms (2)

Family-based cognitive behavioral group therapy (FB-CBGT)

ACTIVE COMPARATOR

One family member of each patient will be involved during all 12 CBGT sessions. The CBGT program that will be employed in the present study is a protocoled therapy consisting of psychoeducation, ERP techniques, cognitive tools to change dysfunctional thoughts and beliefs, strategies to prevent relapses, discussion on the family involvement (e.g. FA, burden, …) and homework exercises after each session.

Behavioral: FB-CBGT

Cognitive-behavioral group therapy (CBGT) without family

PLACEBO COMPARATOR

Each patient will be involved during all 12 CBGT sessions. The CBGT program that will be employed in the present study is a protocoled therapy consisting of psychoeducation, ERP techniques, cognitive tools to change dysfunctional thoughts and beliefs, strategies to prevent relapses, discussion on the family involvement (e.g. FA, burden, …) and homework exercises after each session., without the involvement of family members.

Behavioral: CBGT

Interventions

FB-CBGTBEHAVIORAL

CBGT for OCD patients, with Involvement of family members (partner, parent, sibling, ...)

Family-based cognitive behavioral group therapy (FB-CBGT)
CBGTBEHAVIORAL

CBGT for OCD patients, without involvement of family members

Cognitive-behavioral group therapy (CBGT) without family

Eligibility Criteria

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

You may qualify if:

  • the OCD patient with a score of at least 16 on Y-BOCS
  • patient and family member fluent in Dutch
  • patient and family member both willing to attend all treatment sessions together.

You may not qualify if:

  • current severe suicidality
  • current substance abuse
  • psychotic symptoms and
  • OCD treated with deep brain stimulation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ghent University Hospital

Ghent, 9000, Belgium

RECRUITING

MeSH Terms

Conditions

Obsessive-Compulsive Disorder

Condition Hierarchy (Ancestors)

Anxiety DisordersMental Disorders

Study Officials

  • Gilbert MD Lemmens, MD, PhD

    Ghent University Hospital, University Ghent

    PRINCIPAL INVESTIGATOR
  • Kurt Audenaert, MD, PhD

    Ghent University Hospital, University Ghent

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Hannelore LN Tandt, MD

CONTACT

Gilbert MD Lemmens, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: After randomization the patient an family member will be allocated to one of the two groups: (a) CBGT with involvement of family (intervention) or (b) CBGT without involvement of family (control), both groups will exist of 12 sessions
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 2, 2019

First Posted

August 28, 2019

Study Start

September 3, 2019

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

September 19, 2024

Record last verified: 2024-09

Data Sharing

IPD Sharing
Will not share

The datasets generated and/or analyzed during the current study are not publicly available due to confidentiality issues but are available from the corresponding author upon reasonable request.

Locations