MOTIVOB-(Acceptance and Commitment Therapy Group Intervention for Obesity)Section (MOTIVOB-ACT)

Istituto Auxologico Italiano

Status: Completed

Conditions: Obesity

Treatments: Behavioral: CBT-based intervention; Behavioral: ACT-based intervention

Study type: Interventional

Funder types: Other

Identifiers

NCT03066531

03C101

Details and patient eligibility

About

The purpose of the present study is to compare an Acceptance and Commitment Therapy (ACT) group intervention and a Cognitive Behavioral Therapy (CBT) group in a sample of obese individuals with respect to mid-term outcome.

Full description

Effective weight-management programs often include a combination of physical activity, diet, and psychological intervention, in particular Cognitive Behavioral Therapy (CBT). The effects of these programs are frequently not stable, and usually the maintenance of achieved weight-loss lasts only for a short period of time. Acceptance and Commitment Therapy, ACT, keeps on gaining recognition in obesity treatment. The purpose of the study is to compare weight loss and indicator of psychological functioning in a population of obese subjects belonging to three different diagnostic categories: without ED, with ED NAS and with BED. Participants were exposed respectively to a CBT or an ACT treatment and were assessed three times: pre intervention, post intervention and follow-up. The investigators hypothesize that CBT and ACT are both effective in the post-intervention. ACT intervention should be more effective in the follow-up both for weight and psychological functioning, due to its focus on the flexible managing of the global context instead of the focus on the pathology itself, more typical in standard CBT treatment.

Enrollment: 156 patients

Sex: All

Ages: 18 to 70 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. between the ages of 18 and 70 years
2. obesity according to the WHO criteria (BMI ≥ 30)
3. fluency in spoken and written Italian language
4. expression of written informed consent

Exclusion criteria

1. other severe psychiatric disturbance different form eating disorders diagnosed by DSM-5 criteria (SCID-Structured Clinical Interview for DSM-IV-TR Disorders I and II and DSM 5 manual, administered by an independent clinical psychologist, were used as screening tools for psychiatric disorders)
2. concurrent severe medical condition not related to obesity

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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156 participants in 2 patient groups

ACT-based intervention

Experimental group

Description:

The ACT-based intervention integrates educational topics on heart healthy behaviours with mindfulness and acceptance training regarding difficult thoughts and feelings, clarification of health-related values and commitment to behave in the valued direction while contacting difficult experiences.

Treatment:

Behavioral: ACT-based intervention

CBT-based intervention included in Usual Care

Active Comparator group

Description:

These programs are based on current guidelines for the long- term multi-disciplinary rehabilitation and prevention of obese patients, including Cognitive Behavioral Therapy (CBT), in a group setting, as Gold Standard. Assigned Interventions: Behavioral: usual care (CBT)

Treatment:

Behavioral: CBT-based intervention