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Tailored Lifestyle Intervention in Obese Adults Within Primary Care Practice - Choose to Lose (CTL)

This study has been completed.
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Information provided by (Responsible Party):
Charles B. Eaton, Memorial Hospital of Rhode Island Identifier:
First received: February 27, 2012
Last updated: March 31, 2016
Last verified: March 2016
The primary objective of the study is to evaluate the effectiveness of tailored lifestyle intervention in primary care by comparing changes in the primary measure of weight and body mass index (BMI) and secondarily: physical activity (PA), fat calories consumed, and fruit/vegetable servings within the two arms (intervention and control) of the study. It is hypothesized that the intervention cohort will demonstrate greater reductions in body weight, body neglect, and fat calories consumed and greater increases in physical activity and fruits/vegetable servings after two years compared to the control cohort. The study also aims to evaluate and compare the cost of intervention for purpose per each unit of measure lost between the two arms of the study as a secondary objective. The cost of intervention will be evaluated as it relates to study replication.

Condition Intervention
Overweight and Obesity
Behavioral: Intervention
Behavioral: Control

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Tailored Lifestyle Intervention in Obese Adults Within Primary Care Practice

Further study details as provided by Memorial Hospital of Rhode Island:

Primary Outcome Measures:
  • Changes in Body Weight & Physical Activity [ Time Frame: Five years ]
    The primary outcomes of the trial are measured changes in BMI and physical activity level.

Secondary Outcome Measures:
  • Cost Effectiveness [ Time Frame: Five Years ]
    Secondary outcomes are cost effectiveness of the intervention as measured by cost per unit of BMI loss. Additional outcomes are changes in stages of change, decision balance, self-efficacy, and problem solving skills during the trial.

  • Eating Behaviors [ Time Frame: 5 years ]
    Eating behaviors (measured as servings of fruits/vegtables and fat calories consumed) as self reported, Diet History Questionnaire II, SF-12, Eating Behavior Inventory, Three Factor Eating, and General Self Efficacy questionnaires

Enrollment: 200
Study Start Date: September 2009
Study Completion Date: July 2015
Primary Completion Date: July 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Intervention
Lifestyle counseling at baseline, six, twelve months; Food and exercise log recording and feedback, motivational phone calls monthly for 12 months, 4 tailored mailings on lifestyle change, and weekly mailings on weight loss, exercise, and healthy eating for first 12 months. Maintenance mailings biweekly for six months and then monthly during the second year.
Behavioral: Intervention
  • Lifestyle Counselor meetings at baseline, 6 months, and 12 months
  • Structured eating plan
  • Tailored nutritional and exercise tips. Weekly: months 1-12, biweekly: months 13-18, and monthly: months 19-24.
  • Monthly Motivational phone calls with Lifestyle Counselor for the first year
  • 4 informational DVDs over the two year period
  • Feedback on submitted food and exercise journals
Placebo Comparator: Control
Lifestyle counseling at baseline, six and twelve months similar to intervention group, and infrequent non-tailored pamphlets.
Behavioral: Control
  • Lifestyle Counselor meetings at baseline, 6 months, and 12 months
  • Structured eating plan
  • 5 informational NIDDK mailings over the two year period

Detailed Description:
The study will translate and evaluate previously successful weight loss and physical activity studies into a primary care setting in terms of efficacy and cost effectiveness. Patients are recruited by their primary care physicians office and screened for participation and contraindications by phone. A screening visit with a run-in period of food and exercise log adherence is performed. All participants have meetings with a Lifestyle Counselor to set nutritional and lifestyle goals and an introduction to weight loss techniques at baseline, 6 months, and 12 months. A structured eating plan will be given at the baseline visit. Participants at the baseline visit are randomized to either the intervention and control groups. During the first year, intervention participants will receive monthly motivational phone calls from their lifestyle counselor to assess their progress and help navigate the lifestyle changes. Food and exercise logs are reviewed frequently and written feedback give to each interventional participant. Intervention participants also receive weekly mailings focusing on weight loss, physical activity and healthy eating, and four tailored mailings based upon information gained through contact with the lifestyle counselor. Intervention participants will also receive 2 informative DVDs during the first year. Control participants receive 2 NIDDK informational handouts on weight loss. For the second year of the study focuses on maintenance. Intervention participants receive reduced mailings of 2 per month for 6 months and then once a month until the end of one year. Intervention participants receive one additional motivational phone call at 13 months if they have not reached their weight loss goal and also receive 2 more informative DVDs. The control participants will receive 3 informational NIDDK mailings. The two arms of the study will be compared using the critical outcome measures (weight loss, PA, fat calories & vegetable/fruit servings consumed) and secondary outcome measures (waist and hip circumference,BP,Heart rate) for weight loss efficacy. We will also evaluate the cost-effectiveness for dissemination as a PCP weight loss program in addition to the overall cost-effectiveness for the participant in terms of money spent and adverse events related to the lifestyle change.

Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Male/female ≥18 and <80 years old
  • Available for this research project for the entire 24-month study period
  • Able to read and speak English
  • Can provide informed consent

Exclusion Criteria:

  • Diagnosed or hospitalization for active CVD disease in the past 6 months including: CHD or history of coronary revascularization procedure (e.g. angioplasty, bypass graft surgery), Stroke, Peripheral Vascular Disease, Heart Failure, Deep Vein Thrombosis (DVT)
  • Unstable psychiatric condition
  • History of a significant orthopedic limitation or other conditions that make exercise dangerous or extremely difficult
  • Limited physical activity by a physician to less than a brisk walk
  • Another family member in the study
  • Limited prescribed diet (e.g. gluten free diet)
  • Present treatment for an eating disorder
  • Underwent treatment for cancer in the past 5 years
  • Dialysis
  • Poorly controlled diabetes (HgbA1c > 10) or hospitalized in past 6 months for poorly controlled diabetes
  • Chronic steroid therapy
  • Participant requesting surgical treatment of obesity or weighing over 400 lbs.
  • Major surgery in the past month
  • Participating in another clinical trial with regards to obesity or physical activity
  Contacts and Locations
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Please refer to this study by its identifier: NCT01542671

United States, Rhode Island
Memorial Hospital of Rhode Island
Pawtucket, Rhode Island, United States, 02816`
Sponsors and Collaborators
Memorial Hospital of Rhode Island
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Principal Investigator: Charles B Eaton, MD Memorial Hospital of Rhode Island
  More Information

Responsible Party: Charles B. Eaton, Principal Investigator, Memorial Hospital of Rhode Island Identifier: NCT01542671     History of Changes
Other Study ID Numbers: 09-32
5R18DK079880 ( US NIH Grant/Contract Award Number )
Study First Received: February 27, 2012
Last Updated: March 31, 2016

Keywords provided by Memorial Hospital of Rhode Island:
lifestyle change
obesity treatment
physical activity
primary care
quality of life

Additional relevant MeSH terms:
Body Weight
Signs and Symptoms processed this record on April 28, 2017