Tele-CBT Following Bariatric Surgery: Randomized Control Trial

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

306 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-02-09

Study Completion Date

2024-01-15

Brief Summary

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Bariatric (weight loss) surgery is the most effective treatment for extreme obesity, but surgery does not treat underlying psychological and behavioural issues. Currently, psychotherapy ("talk therapy") for eating problems is not routinely offered with surgery, and many people start to regain weight one year later. Objective: This study will examine if adding a convenient and accessible psychotherapy by phone one year after surgery will lead to increased weight loss two years after surgery. Primary Hypothesis: Relative to the Control group (who will get routine care), the group of individuals who get psychotherapy will have lower weights 2 years after surgery. Secondary Hypotheses: Relative to the Control group, the psychotherapy group will report significantly less maladaptive eating behaviours and medical burden, and significantly greater quality of life. Method: Participants recruited from the Bariatric Surgery Programs at Toronto Western Hospital will be randomly assigned to 1 of 2 groups: 1) Control (Usual Standard of Care) or 2) Tele-CBT (a 7-session telephone-based cognitive behavioural therapy \[a type of "talk therapy"\] intervention focused on developing coping skills to improve maladaptive thoughts, emotions, and eating behaviours, specifically designed for bariatric surgery patients, delivered 1 year post-surgery). They will have their weight measured and will complete measures of eating behaviour and quality of life prior to the intervention, and again at several time points extending to 2 years post-surgery. Implications: If Telephone-Cognitive Behavioural Therapy (CBT) is found to improve bariatric surgery outcomes, it could become the standard of care in Canadian bariatric surgery programs and beyond, and be routinely offered to patients who cannot feasibly attend CBT sessions due to physical or practical barriers.

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Detailed Description

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Conditions

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Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomized Control Trial

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Treatment as Usual

Participants assigned to the Treatment as Usual group will attend routine clinic visits at the Toronto Western Hospital Bariatrics Surgery Program (TWH-BSP). These visits generally include education on bariatric surgery and nutrition. Patients meet with select members of the multidisciplinary team at 1, 2, and 3 years post-surgery, and may attend an optional monthly support group. Participants' service utilization (i.e., attendance at optional sessions) will be documented and compared across groups.

Group Type NO_INTERVENTION

No interventions assigned to this group

Telephone-Based CBT

The Tele-CBT intervention will be delivered 1 year following bariatric surgery. Participants will receive 6 weekly Telephone-based Cognitive Behavioural Therapy sessions and 1 final "booster" session 1 month later, all approximately 55-minutes in duration and scheduled at a time convenient for the participants.

Group Type EXPERIMENTAL

Telephone-Based CBT

Intervention Type BEHAVIORAL

The Tele-CBT sessions focus on introducing the cognitive behavioural model of overeating and obesity, scheduling healthy meals and snacks at regular time intervals and recording consumption using food records, scheduling pleasurable alternative activities to overeating, identifying and planning for difficult eating scenarios, and reducing vulnerability to overeating by solving problems and challenging negative thoughts. Participants are expected to complete CBT homework between sessions, such as completing food records, engaging in pleasurable and self-care activities, and completing a variety of worksheets.

Interventions

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Telephone-Based CBT

The Tele-CBT sessions focus on introducing the cognitive behavioural model of overeating and obesity, scheduling healthy meals and snacks at regular time intervals and recording consumption using food records, scheduling pleasurable alternative activities to overeating, identifying and planning for difficult eating scenarios, and reducing vulnerability to overeating by solving problems and challenging negative thoughts. Participants are expected to complete CBT homework between sessions, such as completing food records, engaging in pleasurable and self-care activities, and completing a variety of worksheets.

Intervention Type BEHAVIORAL

Other Intervention Names

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Tele-CBT

Eligibility Criteria

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Inclusion Criteria

* Received bariatric surgery 1 year ago
* Fluent in English
* Have Internet access to complete online questionnaires.

Exclusion Criteria

* Current active suicidal ideation
* Current poorly controlled psychiatric illness that would render Tele-CBT very difficult, including serious mental illness (i.e., psychotic disorder, bipolar disorder), severe depression (i.e., current major depressive episode diagnosis and Patient Health Questionnaire \[PHQ-9\]61 score \> 20), or severe anxiety (i.e., current anxiety disorder diagnosis and Generalized Anxiety Disorder \[GAD-7\]62 score \>15)
* Current poorly controlled medical illness that would render Tele-CBT very difficult.

Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Responsible Party

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Sanjeev Sockalingam

Deputy Psychiatrist-in-Chief

Responsibility Role PRINCIPAL_INVESTIGATOR