Using Novel Behavioral Approaches to Improve Long-Term Weight Loss Outcomes

Completed · Not applicable

Conditions studied: Obesity

In brief

This project is a randomized controlled trial to compare the efficacy of two interventions- one based on Acceptance and Commitment Therapy (ACT) and one based on Self-Regulation (SR)- and a control group (called weight loss only (WLO)) on 24-month weight loss outcomes. All participants will first participate in an initial 4-month standard behavioral weight loss program. Participants will be randomized into 1 of 3 groups and receive a 3-part workshop; the ACT workshop will teach ACT skills including acceptance and mindfulness techniques designed to promote behavior change and health behavior persistence consistent with one's core values. The SR program will focus on self-regulation, regular weighing, and modeling behavior on successful maintainers. The WLO group will receive a control workshop focused on cooking demonstrations and general nutrition topics.The primary outcome is weight loss at 24 months. The secondary outcome is change in psychological flexibility, a critical component of ACT interventions and a potential innovative mediating mechanism. Primary Hypothesis: At 24 months, the ACT group will show significantly greater weight loss as compared to the SR and WLO groups.

Key facts

Study ID

NCT02156752

Run by

The Miriam Hospital

People needed

190

Starts

2015-01-01

Expected to finish

2019-08-29

Last updated by the study team

2019-09-18

Who can join

Age: 30 and older, up to 65. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• BMI 27.5-40
• Age 30-65

You may not qualify if…

• currently participating in a weight loss program
• pregnant or planning to become pregnant
• medical condition that would preclude physical activity
• terminal illness
• plans to relocate
• history of substance abuse or psychological problems that are judged by the investigators to be likely to interfere with study participation

Where it is running

• Weight Control and Diabetes Research Center — Providence, Rhode Island, United States

Full record on ClinicalTrials.gov

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