GATE: Generalized Anxiety - A Treatment Evaluation

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

226 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-12-31

Study Completion Date

2019-10-25

Brief Summary

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The purpose of this randomized study is to examine the comparative efficacy of yoga, cognitive behavioral therapy, and stress education, a previously employed control condition, for patients with Generalized Anxiety Disorder.

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Detailed Description

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We are currently conducting a treatment study to reduce stress and anxiety in people with generalized anxiety disorder (GAD). This study will not use a medication, but instead will involve weekly stress reduction classes that use different strategies to reduce anxiety. The study involves having a formal psychiatric interview, filling out questionnaires, ECGs, saliva samples, a urine test for drugs of abuse, and study visits over 12 weeks. Each study visit will take a few hours. Qualified participants will be compensated for time and travel.

Conditions

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Generalized Anxiety Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Yoga

The yoga intervention will apply Kundalini Yoga practices as taught by Yogi Bhajan. This is a well-known, accessible style of practice in the U.S. that incorporates all of the traditional components of yoga including physical postures and exercises, breathing techniques, relaxation exercises and meditation practices. It is a safe style of yoga that is registered with the Yoga Alliance that is readily and routinely adapted for therapeutic purposes. The 12-week yoga intervention will consist of 12 group classes and assigned daily home practice led by qualified and certified yoga instructors. Each group yoga session will include physical postures/exercises, breathing techniques, meditation and deep relaxation practice that are all easy to learn and do not require extensive practice or athletic ability to perform.

Group Type EXPERIMENTAL

Yoga

Intervention Type BEHAVIORAL

12 sessions, mindfulness components

Cognitive Behavioral Therapy (CBT)

The 12 session CBT treatment will be based on the standardized protocol developed at one of our centers (CARD) and widely available \[88\]. This protocol is comprised of four primary treatment modules including cognitive restructuring, progressive muscle relaxation, worry exposures, and in vivo exposure exercises. The initial sessions describe the cognitive behavioral model of worry and GAD. Each session consists of a different "lesson." These lessons initially cover basic information about the nature of the anxiety and worry, the possible function and negative consequences of worrying, the maladaptive and paradoxical effects of attempting to control and suppress one's thoughts, the basic cognitive errors of probability overestimation and catastrophic thinking, adaptive strategies to deal with worries, such as problem solving, worry exposure, which may involve exploring and exposing the patient to negative images and scenarios that might be behind some of the worrisome thoughts.

Group Type ACTIVE_COMPARATOR

Cognitive Behavioral Therapy

Intervention Type BEHAVIORAL

CBT focused on Generalized Anxiety Disorder (12 sessions)

Stress Education

SE will also include 12 weeks of group and home practice sessions. SE will control for attention from instructors, expectancy effects, and group support effects, Stress Education (SE) will be employed as an active control intervention. SE is currently used in NIH-funded protocols at the Benson-Henry Institute for Mind-Body Medicine at MGH. In this condition, participants will be provided with detailed and extensive information about stress and health, but will not receive any CBT, yoga, or other mind-body training techniques.

Group Type SHAM_COMPARATOR

Stress Education

Intervention Type BEHAVIORAL

Active control group (12 sessions)

Interventions

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Cognitive Behavioral Therapy

CBT focused on Generalized Anxiety Disorder (12 sessions)

Intervention Type BEHAVIORAL

Stress Education

Active control group (12 sessions)

Intervention Type BEHAVIORAL

Yoga

12 sessions, mindfulness components

Intervention Type BEHAVIORAL

Other Intervention Names

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CBT SE Kundalini Yoga

Eligibility Criteria

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Inclusion Criteria

* Male or female outpatients \> 18 years of age with a primary psychiatric diagnosis of generalized anxiety disorder
* Clinical Global Impression-Severity scale (CGI-S) score of 4 or higher
* Off concurrent psychotropic medication for at least 2 weeks prior to initiation of randomized treatment, OR stable on current medication for a minimum of 6 weeks and willing to maintain a stable dose
* Willingness and ability to perform the yoga intervention and to comply with the requirements of the study protocol.
* For women of childbearing potential, willingness to use a reliable form of birth control

Exclusion Criteria

* Patients unable to understand study procedures and participate in the informed consent process.
* Pregnancy as assessed by pregnancy test at screen or lack of use approved methods birth control for women of childbearing age
* Women who are planning to become pregnant
* Serious medical illness or instability for which hospitalization may be likely within the next year
* Significant current suicidal ideation or suicidal behaviors within the past 6 months (assessed with the Beck Depression Inventory-II \[BDI-II\])
* History of head trauma causing loss of consciousness, or seizure disorder resulting in ongoing cognitive impairment
* Posttraumatic stress disorder, substance use disorder, eating disorder, or organic mental disorder within the past 6 months
* Lifetime history of psychotic disorder, bipolar disorder, or developmental disorder
* Significant personality dysfunction likely to interfere with study participation (assessed during the clinical interview)
* Prior experience with (more than 5 Yoga classes or CBT sessions within the last 3 years) and/or current practice of mindbody techniques (e.g., yoga, meditation, Tai-Chi, etc) or cognitive behavioral therapy (CBT)
* Concomitant therapy for generalized anxiety disorder (GAD) (any therapy)
* Physical conditions that might cause injury from yoga (pregnancy, physical injuries and musculoskeletal problems)
* Cognitive impairment (MOCA\<21)

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No