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Energy Balance Interventions for Colorectal Cancer Prevention

This study has been completed.
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Maciej Buchowski, Vanderbilt University Identifier:
First received: April 4, 2008
Last updated: December 16, 2013
Last verified: December 2013

RATIONALE: Calories and physical exercise may affect the risk of developing cancer. It is not yet known whether a low-calorie diet and/or physical activity program is effective in preventing cancer in participants at increased risk of developing colorectal cancer.

PURPOSE: This randomized clinical trial is studying diet and physical activity in healthy overweight, obese, or inactive participants at risk of developing colorectal cancer.

Condition Intervention
Colorectal Cancer
Behavioral: Physical Activity
Behavioral: Energy Restriction
Behavioral: Physical Activity and Energy Restriction

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
Official Title: Energy Balance Interventions for Colorectal Cancer Prevention

Resource links provided by NLM:

Further study details as provided by Vanderbilt University:

Primary Outcome Measures:
  • Physical activity-energy expenditure [ Time Frame: June 2010 ]

Secondary Outcome Measures:
  • Physical activity-energy expenditure [ Time Frame: June 2010 ]
  • Dietary-energy intake (kcal/d) and quality [ Time Frame: June 2010 ]
  • Body weight and composition [ Time Frame: June 2010 ]

Enrollment: 40
Study Start Date: March 2008
Study Completion Date: June 2013
Primary Completion Date: May 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Physical Activity Only
Physical Activity
Behavioral: Physical Activity
Experimental: Dietary Energy Restriction
Energy restriction
Behavioral: Energy Restriction
Experimental: Physical Activity+Dietary Energy Restriction
Physical Activity ad Energy Restriction
Behavioral: Physical Activity and Energy Restriction

  Show Detailed Description


Ages Eligible for Study:   50 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:


  • Healthy participants at increased risk for developing colorectal cancer due to any of the following risk factors:

    • Excess weight or obesity

      • Body mass index 25-40 kg/m²
    • Not currently exercising on a regular basis (< 1,000 kcal/week)
  • Must be free of significant eating disorders (i.e., purging, extended fasting, or use of laxatives)


  • Females must be postmenopausal, defined by the absence of menstrual periods in the past 12 months
  • No heart disease or orthopedic impairments that would limit exercise or may be worsened by exercise
  • No major chronic diseases (e.g., liver, kidney, diabetes, or adrenal ailments) that would influence metabolism
  • No cancer diagnoses within the past 5 years, except skin cancer

Exclusion Criteria:


  • See Disease Characteristics
  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: NCT00653484

United States, Tennessee
Vanderbilt-Ingram Cancer Center - Cool Springs
Nashville, Tennessee, United States, 37064
Vanderbilt-Ingram Cancer Center at Franklin
Nashville, Tennessee, United States, 37064
Vanderbilt-Ingram Cancer Center
Nashville, Tennessee, United States, 37232-6838
Sponsors and Collaborators
Vanderbilt University
National Cancer Institute (NCI)
Principal Investigator: Charles Matthews, PhD Vanderbilt-Ingram Cancer Center
  More Information

Responsible Party: Maciej Buchowski, Research Professor, Vanderbilt University Identifier: NCT00653484     History of Changes
Other Study ID Numbers: CDR0000592809
Study First Received: April 4, 2008
Last Updated: December 16, 2013

Keywords provided by Vanderbilt University:
colon cancer
rectal cancer

Additional relevant MeSH terms:
Colorectal Neoplasms
Intestinal Neoplasms
Gastrointestinal Neoplasms
Digestive System Neoplasms
Neoplasms by Site
Digestive System Diseases
Gastrointestinal Diseases
Colonic Diseases
Intestinal Diseases
Rectal Diseases processed this record on April 26, 2017