T2D: Weight Loss Study for People With Type 2 Diabetes

Sponsor
Medical University of South Carolina (Other)
Overall Status
Completed
CT.gov ID
NCT01601574
Collaborator
Weight Watchers International (Industry)
563
15
2
28
37.5
1.3

Study Details

Study Description

Brief Summary

The purpose of this study is to determine whether the Weight Watchers program modified for use by people with Type 2 diabetes results in more improvements in blood glucose control relative to a control group receiving standard diabetes counseling.

Condition or Disease Intervention/Treatment Phase
  • Behavioral: Weight Watchers modified program
  • Other: Standard Care group
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
563 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Effects on Glycemic Control and Weight of a Modified Commercial Weight Control Program for People With Type 2 Diabetes
Study Start Date :
May 1, 2012
Actual Primary Completion Date :
May 1, 2014
Actual Study Completion Date :
Sep 1, 2014

Arms and Interventions

Arm Intervention/Treatment
Experimental: Modified Weight Watchers program

Behavioral: Weight Watchers modified program
Weight Watchers: For people with Type 2 diabetes including (1) weekly standard in-person Weight Watchers meetings, (2) use of the standard Weight Watchers online program and tools, and (3) two scheduled telephone consultations with a Certified Diabetes Educator (CDE) who will assist the participant in tailoring the standard Weight Watchers program to accommodate the participant's diabetes-related status, with additional unlimited phone and email access to CDEs at the participant's request

Active Comparator: Standard Diabetes Counseling group

Other: Standard Care group
One session of in-person diabetic nutritional counseling with a registered dietitian, with follow-up written educational materials.

Outcome Measures

Primary Outcome Measures

  1. Change in HbA1c [Baseline and 12 months]

Secondary Outcome Measures

  1. Secondary Endpoints [Baseline and 12 months]

    Change in weight

  2. Secondary Endpoints [Baseline and 12 months]

    Change in BMI

  3. Secondary Endpoints [Baseline and 12 months]

    Change in waist circumference

  4. Secondary Endpoints [Baseline and 12 months]

    Change in fasting blood glucose

  5. Secondary Endpoints [Baseline and 12 months]

    Change in HOMA

  6. Secondary Endpoints [Baseline and 12 months]

    Change in cardiovascular risk markers (lipid measures, blood pressure, C-Reactive Protein)

  7. Secondary Endpoints [Baseline and 12 months]

    Change in diabetes medications.

  8. Secondary Endpoints [Baseline and 12 months]

    Change in various mental health assessments

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 70 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  1. Participant reported diagnosis of Type II diabetes

  2. HbA1c between 7%-11% (inclusive)

  3. Fasting blood glucose < 240. If a potential participant has a FBG above the inclusion criteria it is acceptable to re-test this potential participant within one week of the original test.

  4. BMI 27-50 kg/m2 (inclusive)

  5. Age range - 18 - 70 (inclusive)

  6. Clearance on medical exam by study physician including EKG

  7. No weight loss over the previous 3 months (5kg loss is acceptable with physician discretion)

  8. On stable regimen of all medications (including diabetes) for at least 3 months (brief regimens of medications such as antibiotics, steroids, etc. are permitted)

  9. All diabetes medications are permitted including insulin.

  10. Willing and able to commit to regular physical activity (e.g. walking) five days per week

  11. Willingness and ability to make all scheduled appointments required by study protocol

  12. Willingness to attend weekly Weight Watchers meetings in the community and to participate in Weight Watchers online program, if so randomized

  13. Willing to follow requirements of study protocol

  14. Willing and able to provide a valid email address for use in the study

  15. Must be able to communicate (oral and written) in English

  16. Under the care of a physician for diabetes and willing to give release to contact the MD and request MD's agreement for participant to participate -

Exclusion Criteria:
  1. Type 1 Diabetes

  2. Cardiovascular/Coronary Heart Disease [e.g., MI or CVA within last 6 months, TIA, clinically significant arrhythmias, uncontrolled hypertension (defined as blood pressure over 160/110); physician's discretion may be more conservative]

  3. Current severe depression or history of severe depression within the previous year, based on DSM-IV-TR criteria for Major Depressive Episode

  4. Taking prescription or OTC weight loss medications within last 4 weeks

  5. Currently taking other medications that affect weight (e.g., paroxetine, tricyclics, anti-psychotics)

  6. Within the last 4 weeks, use of chromium supplements or any nutrition supplements or herbal products claimed to have a weight loss effect. Participants using other non-excluded nutrition supplements or herbal products must agree to continue at their current level of use throughout the study.

  7. Participation in a weight control program within the past 3 months

  8. QTc interval >450 msec for males and QTc interval >470 msec for females

  9. PHQ-9 total score > 15

  10. Thyroid disease for which the participant is untreated or has had treatment changed within the last 6 months. History of thyroid disease or current thyroid disease treated with a stable medication regimen for at least 6 months is acceptable

  11. History of a surgical procedure for weight loss at any time (e.g. gastroplasty, gastric by-pass, gastrectomy or partial gastrectomy, adjustable banding, gastric sleeve)

  12. History of major surgery within three months of enrollment

  13. Presence of implanted cardiac defibrillator

  14. Orthopedic limitations that would interfere with ability to engage in regular physical activity

  15. Gastrointestinal disorders including chronic malabsorptive conditions, peptic ulcer disease, Crohn's disease, chronic diarrhea or active gallbladder disease

  16. Current cancer or cancer treatment, or a history of cancer or cancer treatment within the last 3 years. Persons with successfully resected basal cell carcinoma of the skin may be enrolled if treatment was completed more than 6 months prior to enrollment.

  17. History, within the past five years, of clinically diagnosed eating disorders Confidential March 30, 2012 9 including anorexia nervosa or bulimia nervosa.

  18. Women who are pregnant, lactating , trying to become pregnant or unwilling to use an effective means of birth control

  19. Participation in another clinical trial within 30 days prior to enrollment.

  20. Currently consuming >14 alcoholic drinks (1 drink = 12 fl oz beer, 4 fl oz wine or 1.5 fl oz liquor) per week and unwilling to limit intake to less than 3 drinks per drinking day during study participation

  21. Current or past drug abuse

  22. Participation in trial by another member of household

  23. Hypoglycemic Events:

  1. Evidence of more than 1 severe hypoglycemic event in the past 12 months, unless the participant's treating physician provides written clearance for participation.
  1. Any other condition or factor which in the opinion of the study physician or investigator makes it inadvisable for the candidate to participate in the trial -

Contacts and Locations

Locations

Site City State Country Postal Code
1 Diabetes Research and Training Center, University of Alabama at Birmingham Birmingham Alabama United States 35294
2 Scripps Clinical Research La Jolla California United States 92037
3 CSRA Partners in Health Augusta Georgia United States 30909-6599
4 Northwestern University Feinberg School Chicago Illinois United States 60611
5 Obesity Research Center St. Luke's Roosevelt Hospital Center New York New York United States 10025
6 Weill Medical College of Cornell University New York New York United States 10065
7 Center for Nutrition and Preventive Medicine Charlotte North Carolina United States 28277
8 Obesity Clinical Trials Program Duke University Medical Center Durham North Carolina United States 27710
9 Your Diabetes Endocrine Nutrition Group Inc. Mentor Ohio United States 44060
10 Oregon Weight Loss Surgery, LLC Portland Oregon United States 97210
11 The University of Pennsylvania Center for Weight and Eating Disorders Philadelphia Pennsylvania United States 19104
12 Medical University of South Carolina Charleston South Carolina United States 29425
13 Baylor Endocrine Center Dallas Texas United States 75246-1906
14 Oakwell Clinical Research San Antonio Texas United States 78218
15 Washington Center for Weight Management & Research, Inc The Navy League Building Arlington Virginia United States 22201

Sponsors and Collaborators

  • Medical University of South Carolina
  • Weight Watchers International

Investigators

  • Study Director: Patrick M. O'Neil, PhD, Medical University of South Carolina

Study Documents (Full-Text)

None provided.

More Information

Additional Information:

Publications

None provided.
Responsible Party:
Medical University of South Carolina
ClinicalTrials.gov Identifier:
NCT01601574
Other Study ID Numbers:
  • WW-MUSC-1201
First Posted:
May 18, 2012
Last Update Posted:
Oct 15, 2014
Last Verified:
Mar 1, 2012
Keywords provided by Medical University of South Carolina
Additional relevant MeSH terms:

Study Results

No Results Posted as of Oct 15, 2014