Tranquil Moments II-CBT vs. Yoga for Worry

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

500 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-05-01

Study Completion Date

2019-08-28

Brief Summary

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Anxiety disorders are the most prevalent psychiatric disorders. Among older adults, anxiety is more common that depression, yet research on the nature and treatment of anxiety has lagged far behind that of depression. The investigators' work has demonstrated that CBT is superior to enhanced usual care as well as supportive therapy in improving worry, depressive symptoms, and sleep, and these improvements are maintained for up to 1 year upon completing treatment. Research demonstrates that yoga reduces anxiety symptoms and the investigators' own work demonstrates that yoga improves sleep. However, no one has conducted a comparative effectiveness trial of CBT and yoga for treating worry in older adults. In fact, there are very few comparative effectiveness trials for treating late-life anxiety. Thus, clinicians are unable to provide an informed recommendation of one treatment over the other. The investigators propose a two-stage randomized preference trial comparing 1) cognitive-behavioral therapy with 2) yoga for the treatment of worry in a sample of older adults. Participants will be randomized to either the preference group (participants choose the treatment) or to the random group (participants are randomized to 1 of the 2 treatments). This study design allows for the calculation of traditional treatment effects (differences in outcomes between participants randomized to either CBT or yoga), selection effects (differences in outcomes between participants who choose CBT and those who choose yoga), and preference effects (differences in outcomes between participants who choose their treatment and those who are randomized to treatment).

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Detailed Description

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The primary aim of this study is to compare the effects of CBT and yoga on worry in older adults (as assessed by the PSWQ-A measured at post-intervention, Week 11). Secondary aims are to compare the effects of these treatments on anxiety and sleep (as assessed by the PROMIS anxiety scale and the ISI, respectively, measured at post-intervention, Week 11). Exploratory aims are to determine participant preference for CBT vs. yoga; examine participant preference effects on worry, anxiety, sleep, adherence to treatment, and attrition rates; and examine selection effects on worry, anxiety, sleep, adherence to treatment, and attrition rates. All analyses will be repeated for measures assessed at Week 37.

The treatment effect for the primary aim will be estimated by comparing mean PSWQ-A scores between CBT and yoga groups in the random group (N=250, 125 per group) using constrained mixed-model repeated measures analysis of covariance with an unstructured covariance matrix to account for the fact that the multiple measurements (at baseline-Week 0, mid-intervention-Week 6, post-intervention-Week 11) from participants are not independent. The model will contain terms for baseline psychotropic medication use, gender and race (both related to depression), and intervention effects that are specific to each follow-up time. Because this arm of the trial has been randomized, we will constrain the pre-randomization intervention-specific outcome means to be the same. A contrast will be used to test the primary hypothesis at the post-intervention (Week 11) time point using a two-sided 0.05 significance level. In the primary analysis, all randomized participants will be included in their original study group for analysis regardless of the final mode of intervention or the extent of compliance with the study protocol; that is, the primary analysis will follow an "intent to treat" philosophy.

As part of the secondary aims, the estimation of selection and preference effects will be performed with mixed models based on the complete sample using data collected in both preference and randomized arms of the trial. Therefore, these analyses will be based on a sample size of 500 individuals. The adjusted means and variance-covariance matrix needed to compute these effects and their standard error will be estimated from the fitted model. The standard error associated with the preference and selection effects will be derived using the delta-method and/or a bootstrapping approach, as needed.

Consistency of intervention effects will be explored within the following baseline subgroups: 1) depressive symptoms from PROMIS measure (none or mild vs. moderate or severe), 2) use of psychotropic meds (any vs none), 3) age (60-79 vs 80+), 4) gender (female/male), and 5) race (White vs. other races).

Conditions

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Anxiety

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Caregivers

Study Groups

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CBT preference arm

CBT preference arm consists of participants who are randomized to the preference condition and choose to receive cognitive-behavioral therapy (CBT). CBT consists of 10 weeks of weekly treatment.

Group Type ACTIVE_COMPARATOR

Cognitive-behavioral therapy

Intervention Type BEHAVIORAL

10 weekly sessions of cognitive-behavioral therapy

Yoga preference arm

Yoga preference arm consists of participants who are randomized to the preference condition and choose to receive yoga. Yoga consists of 10 weeks of bi-weekly treatment (total = 20 treatments).

Group Type ACTIVE_COMPARATOR

Yoga

Intervention Type BEHAVIORAL

10 weeks of biweekly yoga sessions (N = 20)

CBT randomized arm

CBT randomized arm consists of participants who are randomized to the random condition and are randomized to receive cognitive-behavioral therapy (CBT). CBT consists of 10 weeks of weekly treatment.

Group Type ACTIVE_COMPARATOR

Cognitive-behavioral therapy

Intervention Type BEHAVIORAL

10 weekly sessions of cognitive-behavioral therapy

Yoga randomized arm

Yoga randomized arm consists of participants who are randomized to the random condition and are randomized to receive yoga. Yoga consists of 10 weeks of bi-weekly treatment (total = 20 treatments).

Group Type ACTIVE_COMPARATOR

Yoga

Intervention Type BEHAVIORAL

10 weeks of biweekly yoga sessions (N = 20)

Interventions

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Cognitive-behavioral therapy

10 weekly sessions of cognitive-behavioral therapy

Intervention Type BEHAVIORAL

Yoga

10 weeks of biweekly yoga sessions (N = 20)

Intervention Type BEHAVIORAL

Other Intervention Names

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CBT

Eligibility Criteria

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Inclusion Criteria

* Age 60 years and older
* Moderate to severe levels of worry

Exclusion Criteria

* Currently receiving psychotherapy
* Currently practicing yoga
* Active alcohol/substance abuse
* Dementia
* Current psychotic symptoms
* Active suicidal ideation with plan and intent
* Hearing loss that would prevent a person from participating in telephone/class sessions

Minimum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes