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Teaching Novel Values-Based Skills to Improve Long-Term Weight Loss

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Lifespan

Status

Active, not recruiting

Conditions

Overweight and Obesity

Treatments

Behavioral: Self-Regulation (SR)
Behavioral: Acceptance and Commitment Therapy (ACT)

Study type

Interventional

Funder types

Other

Identifiers

NCT04256850
R01DK120731

Details and patient eligibility

About

This NIDDK funded R01 project is a randomized controlled clinical trial to compare the efficacy of an intervention based on Acceptance and Commitment Therapy (ACT) and a Self-Regulation (SR) intervention on weight loss maintenance over a 30-month period. All participants will first complete a well-validated online weight loss intervention (months 1-3 of the study). Participants who lose ≥4 kilograms of initial weight will then be randomly assigned to receive ACT or SR, with both conditions consisting of face-to-face, group-based intervention meetings and weekly email contact for 6 months.

Full description

Obesity is a major public health problem, and although short-term weight loss is achievable, individuals often regain the majority of weight that was lost. Current approaches have adjusted behavioral prescriptions and lengthened treatment contact in an effort to address this problem, with modest effect. This NIDDK funded R01 project is a randomized controlled clinical trial to compare the efficacy of an intervention based on Acceptance and Commitment Therapy (ACT) and a Self-Regulation (SR) intervention on weight loss maintenance over a 30-month period. All participants will first complete a well-validated online weight loss intervention (months 1-3 of the study). Participants who lose ≥4 kilograms of initial weight will then be randomly assigned to receive ACT or SR, with both conditions consisting of face-to-face, group-based intervention meetings and weekly email contact for 6 months. The ACT intervention will target a novel theoretically derived intervention target, values-consistent behavior, which will help align weight loss goals with personal values and foster internal motivation to continue with weight control efforts. Assessments will be at baseline, post-weight loss/pre-randomization, and then 6, 12, 18, 24, and 30-month follow-up (months from randomization). This project will be conducted at the Weight Control and Diabetes Research Center (WCDRC). The WCDRC is part of the Centers for Behavioral and Preventive Medicine at The Miriam Hospital in Providence, Rhode Island, and the Department of Psychiatry and Human Behavior at the Alpert Medical School of Brown University. This study is significant because it addresses weight loss maintenance - a critical barrier to treating obesity - and results of the study could be used to improve long-term weight loss outcomes and associated health benefits for treatment seeing overweight and obese adults.

Enrollment

480 estimated patients

Sex

All

Ages

25 to 70 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • English language fluent and literate at the 6th grade level
  • Body mass index (BMI) between 27.5 and 45 kg/m-squared
  • Able to walk 2 city blocks without stopping
  • Has reliable access to a computer with internet access

Exclusion criteria

  • Currently participating in another weight loss program
  • Currently taking weight loss medication
  • Has lost ≥5% of body weight in the 6 months prior to enrolling
  • Has been pregnant within the 6 months prior to enrolling
  • Plans to become pregnant within 18 months of enrolling
  • Has a heart condition, chest pain during periods of activity or rest, or loss of consciousness in the 12 months prior to enrolling
  • Has any medical condition that would affect the safety of participating in unsupervised physical activity
  • Has any condition that would result in inability to follow the study protocol, including terminal illness and untreated major psychiatric illness

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

480 participants in 2 patient groups

Acceptance and Commitment Therapy (ACT)
Experimental group
Description:
Focuses on addressing cognitive and emotional barriers to successful weight loss maintenance.
Treatment:
Behavioral: Acceptance and Commitment Therapy (ACT)
Self-Regulation (SR)
Experimental group
Description:
Focuses on using self-monitoring and self-reinforcement techniques to improve weight loss maintenance.
Treatment:
Behavioral: Self-Regulation (SR)

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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