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Internet-delivered Attention Training for Obsessive-Compulsive Disorder

NCT ID: NCT02018848

Last Updated: 2014-11-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

108 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-10-31

Study Completion Date

2014-07-31

Brief Summary

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The goal of this study is to investigate an attention training program for participants with Obsessive-Compulsive Disorder. The attention training consists of a modified dot probe task with picture stimuli related to washing and checking paired with neutral pictures.

Participants are randomly assigned to an experimental and a placebo-control group. After a minimum of 4 weeks of attention training we expect to find differences between participants of the experimental and the control group in terms of attention bias, OCD symptoms, anxiety and depression.

Detailed Description

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Conditions

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Obsessive-Compulsive Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Attention Training Placebo

Same procedure, stimulus material, frequency and duration as in experimental group.

The only difference: In the placebo group the probe randomly appears at one of the two locations on the screen so as not to train attention in any direction.

Thus, the placebo training sessions are identical to the bias assessment sessions.

Group Type PLACEBO_COMPARATOR

No interventions assigned to this group

Attention Training Program

The Attention Training consists of a modified dot-probe task. In this task pairs of pictures (OCD-relevant/neutral) are presented for 500 ms on a computer screen. Next, a probe appears on one of the two former picture locations. Participants have to react to that probe by pressing the corresponding button on the keyboard. One training session takes approximately 10 minutes in which 160 stimulus pairs are shown.

In the experimental group the probe always appears at the location of the neutral picture so as to train attention away from OCD-relevant stimuli.

Participants are asked to complete at least 2 training sessions per week over a period of 5 weeks. The first and last session are bias assessment sessions (see outcome measures), but participants stay blind to this.

Group Type EXPERIMENTAL

Attention Training Program

Intervention Type BEHAVIORAL

Interventions

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Attention Training Program

Intervention Type BEHAVIORAL

Other Intervention Names

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ATP Attention Bias Modification Treatment ABMT Bias Modification Attentional Training

Eligibility Criteria

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Inclusion Criteria

* diagnosis of primary OCD according to OCI-R self report (cut-off \>=18)

Exclusion Criteria

* suicidal
* substance abuse or addiction
* psychotic symptoms
* visual impairment if not compensated with optical aid

Current treatment is not an exclusion criterion, but data on treatment status (current psycho- or pharmacotherapy for OCD) will enter our statistical analyses.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Humboldt-Universität zu Berlin

OTHER

Sponsor Role lead

Responsible Party

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Dr. Andrea Ertle

Dr. phil. Dipl. Psych.

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Humboldt-Universität zu Berlin

Berlin, State of Berlin, Germany

Site Status

Countries

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Germany

Other Identifiers

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HU-ATP-OCD-2013

Identifier Type: -

Identifier Source: org_study_id