Attention Retraining for Anxiety Disorder Patients Resistent to Antidepressants

July 17, 2014 updated by: Hospital de Clinicas de Porto Alegre

Attentional Bias Modification Treatment (ABMT) as Adjuvant Therapy for Anxiety Disorder Patients Resistent to Antidepressants: A Randomized Clinical Trial

The objective of this project is to test the combination of active or placebo Attentional Bias Modification Treatment (ABMT) to usual treatment for anxiety disorder patients resistant to antidepressants.

Study Overview

Study Type

Interventional

Enrollment (Anticipated)

60

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • RS
      • Porto Alegre, RS, Brazil, 90040-371
        • Recruiting
        • Hospital de Clínicas de Porto Alegre
        • Sub-Investigator:
          • Rachel Montagner, MD
        • Sub-Investigator:
          • Giovanni A Salum Junior
        • Sub-Investigator:
          • Juliana L Muller
        • Sub-Investigator:
          • Clarissa Trentini

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Primary diagnosis of Generalized Anxiety Disorder, Panic Disorder or Social Anxiety Disorder according to the International Neuropsychiatric Interview psychiatric interview (M.I.N.I.)
  • Current treatment for the anxiety disorder with antidepressants with an appropriate dose for at least 8 weeks;
  • Score on OASIS (Overall Anxiety Severity and Impairment Scale)equal or greater than 8

Exclusion Criteria:

  • Other psychiatric disorder that causes more impairment and suffering than generalized anxiety disorder, panic disorder or social anxiety disorder in the clinical evaluation
  • Current Cognitive Behavior Therapy
  • Marked intellectual disability (clinically evident)
  • Suicidal ideation or suicide plan at the time of assessment(M.I.N.I.)
  • Psychotic disorder (M.I.N.I.)
  • Bipolar disorder type I (M.I.N.I.)
  • Abuse / Dependence substances (M.I.N.I.)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: TAU + ABMT active

Treatment as usual (TAU): selective serotonin reuptake inhibitor or serotonin-noradrenaline reuptake inhibitor

Attention Bias Modification Treatment (ABMT) - active

The ABMT consists of 160 trials (120 angry-neutral and 40 neutral-neutral presentations). In the ABM condition, the target appears at the neutral-face location in all angry-neutral trials. Probe type (< or >) is not factorially counterbalanced but appears with equal probability for each of the following: angry-face location, probe location, or actor.

Number of sessions: 10 ABMT sessions, 5 weeks (2 sessions once a week occurring in the same day with 40 minutes interval)

Sham Comparator: TAU + AMBT placebo

Treatment as usual (TAU): selective serotonin reuptake inhibitor or serotonin norepinephrine reuptake inhibitor

Attention Bias Modification Treatment (ABMT) - placebo (sham)

The Placebo protocol consists of 160 trials (120 angry-neutral and 40 neutral-neutral presentations). In the placebo condition, angry-face location, probe location, and actor are fully counterbalanced in presentation.

Number of sessions: 10 ABMT sessions, 5 weeks (2 sessions once a week occurring in the same day with 40 minutes interval)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall Anxiety Severity and Impairment Scale (OASIS)
Time Frame: Endpoint and 3-months follow-up

Disorder non-specific primary outcome:

Score change on OASIS (Overall Anxiety Severity and Impairment Scale) from baseline to endpoint and 3-months follow-up

Endpoint and 3-months follow-up
Panic Disorder Severity Scale (PDSS), Generalized Anxiety Disorder 7-item Scale (GAD-7) or Liebowitz Social Anxiety Scale (LSAS)
Time Frame: Endpoint and 3-months follow up

Disorder-specific primary outcome:

For patients with Panic Disorder - change from baseline to endpoint and 3 months follow-up in the PDSS

For patients with Generalized Anxiety Disorder - change from baseline to endpoint and 3 months follow-up in the GAD-7

For patients with Social Anxiety Disorder - change from baseline to endpoint and 3 months follow-up in the LSAS

Endpoint and 3-months follow up

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Beck Depression Inventory (BDI)
Time Frame: Endpoint and 3-months follow-up
Score change on BDI from baseline to endpoint and 3-months follow up
Endpoint and 3-months follow-up
Beck Anxiety Inventory (BAI)
Time Frame: Endpoint and 3-months follow-up
Score change on BAI from baseline to endpoint and 3-months follow up
Endpoint and 3-months follow-up
DSM-5 Cross-Disorder Dimensional Scale [Brazilian version]
Time Frame: Endpoint and 3-months follow-up
Score change on Cross-D from baseline to endpoint and 3-months follow up
Endpoint and 3-months follow-up
Profile of Mood States (POMS)
Time Frame: Endpoint and 3-months follow-up
Score Change on POMS from baseline to endpoint and 3-months follow up.
Endpoint and 3-months follow-up
Clinical Global Impression(CGI)
Time Frame: Endpoint and 3-months follow-up
Dichotomous outcome: percentage of patients with a score of 2 or less at the endpoint and 3-months follow-up evaluations
Endpoint and 3-months follow-up

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Dot-probe and Executive Function Measures
Time Frame: Endpoint and 3-months follow-up
Change in bias in attention orienting and executive function measures from baseline to endpoint and 3-months follow-up
Endpoint and 3-months follow-up

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Gisele G Manfro, MD, PhD, Hospital de Clínicas de Porto Alegre

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2013

Primary Completion (Anticipated)

December 1, 2014

Study Registration Dates

First Submitted

July 8, 2013

First Submitted That Met QC Criteria

July 23, 2013

First Posted (Estimate)

July 24, 2013

Study Record Updates

Last Update Posted (Estimate)

July 21, 2014

Last Update Submitted That Met QC Criteria

July 17, 2014

Last Verified

July 1, 2014

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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