Cognitive Behavioural Therapy for Obesity

This study has been completed.
Information provided by:
University of Sydney Identifier:
First received: February 16, 2006
Last updated: July 1, 2008
Last verified: July 2008
The purpose of this study is to evaluate the effectiveness of a cognitive behavioural treatment (CBT) designed to help obese patients lose weight and to maintain their weight losses over time. It is hypothesized that CBT will result in greater sustained weight loss.

Condition Intervention Phase
Behavioral: cognitive behavioural therapy
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Maintenance-Oriented Cognitive Behavioural Therapy in the Treatment of Obesity

Further study details as provided by University of Sydney:

Primary Outcome Measures:
  • Weight [ Time Frame: baseline, post-treatment, one-year follow-up ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • obesity-specific quality of life, mood disturbance, eating disturbance, cognitive disturbance [ Time Frame: baseline, post-treatment, one-year follow-up ] [ Designated as safety issue: No ]

Enrollment: 24
Study Start Date: March 2006
Study Completion Date: March 2008
Primary Completion Date: March 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
20 weekly sessions of CBT integrated with motivational enhancement strategies
Behavioral: cognitive behavioural therapy
20 weekly sessions of CBT integrated with motivational enhancement strategies

Detailed Description:
The primary aim of the present study is to improve the maintenance of weight loss, and hence the physical, psychological and social well-being, of obese patients who have sought weight loss treatment. To do so, it will implement a cognitive-behavioural treatment (CBT) with motivational enhancement strategies specifically designed to target weight maintenance. It is hypothesized that the maintenance-oriented CBT approach will result in sustained weight loss, as well as improved physical, psychological and social well-being.

Ages Eligible for Study:   18 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • The participants will be recruited from among patients referred to the Metabolism and Obesity Service of Royal Prince Alfred Hospital.
  • The inclusion criteria include: 18-65 years of age and a body mass index (BMI: kg/m2) between 30-45.

Exclusion Criteria:

  • psychiatric conditions (i.e., current psychosis, severe depression, mental retardation, and drug or alcohol abuse)
  • or physical conditions (i.e., significant hepatic or renal dysfunction and significant cardiovascular disease such as heart failure, stroke and transient ischaemic attacks) that would preclude full participation in the study;
  • current treatment for obesity;
  • current treatments known to affect eating or weight (e.g., medications);
  • pregnancy.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00294268

Australia, New South Wales
Metabolism and Obesity Services, Royal Prince Alfred Hospital
Sydney, New South Wales, Australia, 2050
Sponsors and Collaborators
University of Sydney
Principal Investigator: Elizabeth Rieger, PhD University of Sydney
  More Information

No publications provided

Responsible Party: Dr Elizabeth Rieger, University of Sydney Identifier: NCT00294268     History of Changes
Other Study ID Numbers: erie8202
Study First Received: February 16, 2006
Last Updated: July 1, 2008
Health Authority: Australia: Human Research Ethics Committee

Keywords provided by University of Sydney:
motivational enhancement therapy
weight loss maintenance

Additional relevant MeSH terms:
Body Weight
Nutrition Disorders
Signs and Symptoms processed this record on November 30, 2015