Internet-based Treatment of Generalized Anxiety Disorder

October 31, 2016 updated by: Per Carlbring, PhD, Umeå University
The purpose of this study is to determine whether internet-administered cognitive behavior therapy is a feasible treatment for generalized anxiety disorder.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
103

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

  • Sweden
    • Västerbotten
      • Umeå, Västerbotten, Sweden, 90181
        • Department of Psychology, Umeå University

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Satisfy DSM-IV criteria for generalized anxiety disorder
  • Living in Sweden and being able to read Swedish
  • Access to computer with internet connection

Exclusion Criteria:

  • Currently receiving other psychological treatment
  • Non-stable use of psychoactive medication
  • Deemed suicidal
  • Deemed to suffer from other psychological disorder, e.g. psychosis, bipolarity etc.

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
  • Masking: NONE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
EXPERIMENTAL: iCBT
Receives treatment.
Behavioral: Internet-based cognitive behavioral therapy (iCBT)
9 week internet-administered, therapist-assisted, controlled-progression cognitive behavioral therapy (iCBT). Individualized and disorder-specific.
NO_INTERVENTION: Waiting list control group
The waiting list control group initially receives no treatment, but do weekly screenings. After 9 weeks, the control group receives the same treatment as the other study arm.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change from baseline in Penn State Worry Questionnaire (PSWQ)
Time Frame: 24 hours
Measures anxiety symptoms related to Generalized Anxiety Disorder. 16 items.
24 hours
Change from baseline in Penn State Worry Questionnaire (PSWQ)
Time Frame: 6 months
Measures anxiety symptoms related to Generalized Anxiety Disorder. 16 items.
6 months
Change from baseline in Penn State Worry Questionnaire (PSWQ)
Time Frame: 12 months
Measures anxiety symptoms related to Generalized Anxiety Disorder. 16 items.
12 months
Change from baseline in Penn State Worry Questionnaire (PSWQ)
Time Frame: 24 months
Measures anxiety symptoms related to Generalized Anxiety Disorder. 16 items.
24 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change from baseline in Beck Anxiety Inventory (BAI)
Time Frame: 24 hours
21 item rating scale for anxiety symptoms.
24 hours
Change from baseline in Beck Anxiety Inventory (BAI)
Time Frame: 6 months
21 item rating scale for anxiety symptoms.
6 months
Change from baseline in Beck Anxiety Inventory (BAI)
Time Frame: 12 months
21 item rating scale for anxiety symptoms.
12 months
Change from baseline in Beck Anxiety Inventory (BAI)
Time Frame: 24 months
21 item rating scale for anxiety symptoms.
24 months
Change from baseline in Quality Of Life Inventory (QOLI)
Time Frame: 24 hours
The QOLI assessment yields an overall score and a profile of problems and strengths in 16 areas of life such as love, work and play. The QOLI test is a measure of positive psychology and positive mental health.
24 hours
Change from baseline in Quality Of Life Inventory (QOLI)
Time Frame: 6 months
The QOLI assessment yields an overall score and a profile of problems and strengths in 16 areas of life such as love, work and play. The QOLI test is a measure of positive psychology and positive mental health.
6 months
Change from baseline in Quality Of Life Inventory (QOLI)
Time Frame: 12 months
The QOLI assessment yields an overall score and a profile of problems and strengths in 16 areas of life such as love, work and play. The QOLI test is a measure of positive psychology and positive mental health.
12 months
Change from baseline in Quality Of Life Inventory (QOLI)
Time Frame: 24 months
The QOLI assessment yields an overall score and a profile of problems and strengths in 16 areas of life such as love, work and play. The QOLI test is a measure of positive psychology and positive mental health.
24 months
Change from baseline in Montgomery-Åsberg Depression Rating Scale (MADRS)
Time Frame: 24 hours
9-item depression rating scale.
24 hours
Change from baseline in Montgomery-Åsberg Depression Rating Scale (MADRS)
Time Frame: 6 months
9-item depression rating scale.
6 months
Change from baseline in Montgomery-Åsberg Depression Rating Scale (MADRS)
Time Frame: 12 months
9-item depression rating scale.
12 months
Change from baseline in Montgomery-Åsberg Depression Rating Scale (MADRS)
Time Frame: 24 months
9-item depression rating scale.
24 months
Change from baseline in Patient Health Questionnaire (PHQ-9)
Time Frame: Weekly during treatment period
The PHQ-9 is the nine item depression scale of the Patient Health Questionnaire. The PHQ-9 is a powerful tool for assisting primary care clinicians in diagnosing depression as well as selecting and monitoring treatment. The PHQ-9 is based directly on the diagnostic criteria for major depressive disorder in the Diagnostic and Statistical Manual Fourth Edition (DSM-IV).
Weekly during treatment period
Change from baseline in Patient Health Questionnaire (PHQ-9)
Time Frame: 24 hours
The PHQ-9 is the nine item depression scale of the Patient Health Questionnaire. The PHQ-9 is a powerful tool for assisting primary care clinicians in diagnosing depression as well as selecting and monitoring treatment. The PHQ-9 is based directly on the diagnostic criteria for major depressive disorder in the Diagnostic and Statistical Manual Fourth Edition (DSM-IV).
24 hours
Change from baseline in Patient Health Questionnaire (PHQ-9)
Time Frame: 6 months
The PHQ-9 is the nine item depression scale of the Patient Health Questionnaire. The PHQ-9 is a powerful tool for assisting primary care clinicians in diagnosing depression as well as selecting and monitoring treatment. The PHQ-9 is based directly on the diagnostic criteria for major depressive disorder in the Diagnostic and Statistical Manual Fourth Edition (DSM-IV).
6 months
Change from baseline in Patient Health Questionnaire (PHQ-9)
Time Frame: 12 months
The PHQ-9 is the nine item depression scale of the Patient Health Questionnaire. The PHQ-9 is a powerful tool for assisting primary care clinicians in diagnosing depression as well as selecting and monitoring treatment. The PHQ-9 is based directly on the diagnostic criteria for major depressive disorder in the Diagnostic and Statistical Manual Fourth Edition (DSM-IV).
12 months
Change from baseline in Patient Health Questionnaire (PHQ-9)
Time Frame: 24 months
The PHQ-9 is the nine item depression scale of the Patient Health Questionnaire. The PHQ-9 is a powerful tool for assisting primary care clinicians in diagnosing depression as well as selecting and monitoring treatment. The PHQ-9 is based directly on the diagnostic criteria for major depressive disorder in the Diagnostic and Statistical Manual Fourth Edition (DSM-IV).
24 months
Change from baseline in Generalized Anxiety Disorder-7 (GAD-7)
Time Frame: Weekly during treatment period
7-item screening form for Generalized Anxiety Disorder.
Weekly during treatment period
Change from baseline in Generalized Anxiety Disorder-7 (GAD-7)
Time Frame: 24 hours
7-item screening form for Generalized Anxiety Disorder.
24 hours
Change from baseline in Generalized Anxiety Disorder-7 (GAD-7)
Time Frame: 6 months
7-item screening form for Generalized Anxiety Disorder.
6 months
Change from baseline in Generalized Anxiety Disorder-7 (GAD-7)
Time Frame: 12 months
7-item screening form for Generalized Anxiety Disorder.
12 months
Change from baseline in Generalized Anxiety Disorder-7 (GAD-7)
Time Frame: 24 months
7-item screening form for Generalized Anxiety Disorder.
24 months

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Umeå University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2012

Primary Completion (ACTUAL)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2016

Study Completion (ACTUAL)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 31, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 3, 2012

First Posted (ESTIMATE)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 4, 2012

Study Record Updates

Last Update Posted (ESTIMATE)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 1, 2016

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 31, 2016

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Oroshjalpen

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