Cognitive Behavioural Therapy for Obesity

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00294268
Recruitment Status : Completed
First Posted : February 20, 2006
Last Update Posted : July 3, 2008
Information provided by:
University of Sydney

February 16, 2006
February 20, 2006
July 3, 2008
March 2006
March 2008   (Final data collection date for primary outcome measure)
Weight [ Time Frame: baseline, post-treatment, one-year follow-up ]
  • The following assessment procedures will be administered at baseline, post-treatment, and the one-year follow-up .
  • Medical outcomes:
  • • Anthropometric parameters: weight; height; abdominal adiposity.
  • • Metabolic/cardiovascular parameters: blood pressure; serum metabolic parameters (glucose metabolism and lipid profile); renal function; liver function tests; and adipocyte hormones.
  • Psychosocial outcomes:
  • • Obesity-specific quality of life: The Impact of Weight on Quality of Life Questionnaire (IWQOL-Lite).
  • • Eating disturbance: The Binge Eating Scale (BES).
  • • Body dissatisfaction: The Physical Appearance State and Trait Anxiety Scale (PASTAS).
  • • Mood disturbance: The Depression Anxiety Stress Scales (DASS) .
  • • Cognitive disturbance: The short form of Young Schema Questionnaire (YSQ-S).
Complete list of historical versions of study NCT00294268 on Archive Site
obesity-specific quality of life, mood disturbance, eating disturbance, cognitive disturbance [ Time Frame: baseline, post-treatment, one-year follow-up ]
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Cognitive Behavioural Therapy for Obesity
A Maintenance-Oriented Cognitive Behavioural Therapy in the Treatment of Obesity
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.
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.
Phase 2
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Behavioral: cognitive behavioural therapy
20 weekly sessions of CBT integrated with motivational enhancement strategies
20 weekly sessions of CBT integrated with motivational enhancement strategies
Intervention: Behavioral: cognitive behavioural therapy
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
March 2008
March 2008   (Final data collection date for primary outcome measure)

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.
Sexes Eligible for Study: All
18 Years to 65 Years   (Adult)
Contact information is only displayed when the study is recruiting subjects
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Dr Elizabeth Rieger, University of Sydney
University of Sydney
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Principal Investigator: Elizabeth Rieger, PhD University of Sydney
University of Sydney
July 2008

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP