Feasibility of a Partnered Approach to Prevent Diabetes

October 6, 2016 updated by: Ronald Ackermann, Northwestern University
The Diabetes Prevention Program (DPP) demonstrated that an intensive lifestyle intervention resulting in modest weight loss and increased physical activity can delay or prevent the development of type 2 diabetes in those at increase risk for the disease. The lifestyle program used, however, was not designed for delivery on a public health scale. Successful DPP translation will require a sustainable partnership between a health care system and an established community organization committed to community health and experienced in implementing sustainable health and wellness programs. We have been collaborating with local health system and community administrators for over a year to design a 'real-world' clinic-based screening model to identify and refer high-risk patients for a group-based adaptation of the DPP lifestyle intervention in community facilities. We have designed this study to develop preliminary data about the feasibility and yield of clinic-based screening and referral, as well as the effectiveness of the adapted lifestyle intervention. This pilot study seeks to: 1) evaluate the feasibility of a strategy to implement American Diabetes Association (ADA) recommendations for clinic-based diabetes-risk testing and to refer high-risk patients for a community-based lifestyle intervention; 2) compare two strategies to enhance community-based program participation by referred patients; 3) demonstrate the capability of community facilities to schedule and enroll referred clinic patients at high-risk for diabetes and to deliver a modified, group-based DPP lifestyle intervention consistently; and 4) compare levels of weight loss and physical activity achieved by referred clinic patients with pre-diabetes who participate in a free-of-charge, group-based DPP lifestyle intervention at community facilities compared to a free-of-charge, traditional, one-on-one DPP lifestyle intervention at a DPP research site. Addressing these issues now will enable us to evaluate this partnered DPP translation model with a larger, more robust future study that will involve referral by multiple primary care clinics, program delivery at more community sites, and a 3-year follow-up period.

Study Overview

Study Type

Interventional

Enrollment (Actual)

72

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Indiana
      • Indianapolis, Indiana, United States, 46222
        • IU Medical Group Westside Clinic
      • Indianapolis, Indiana, United States, 46227
        • IU Medical Group Banta Road Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

21 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

25 years of age or older Body-mass index of >= 24 kg/m2

  1. or more additional risk factors if age is <45

    - Parent or sibling with diabetes

    • Minority race or ethnicity
    • History of gestational diabetes
    • Delivery of infant >= 9 lbs.
    • History of high blood pressure
    • History of dyslipidemia
    • Polycystic Ovarian Syndrome
    • History of vascular disease Fasting Capillary Glucose 95 - 125 mg/dl 2-hour Post-challenge Capillary Glucose 140 - 199 mg/dl

    Exclusion Criteria:

    Diseases that could limit lifespan or increase risk with a lifestyle intervention - Cancer diagnosed in the past 5 years

    - Significant Cardiovascular Disease

    - A "Yes" response to any item on the modified Physical Activity Readiness Questionnaire

    - Uncontrolled hypertension: systolic blood pressure >180 mmHg or diastolic blood pressure >105 mmHg

    • Heart attack, stroke, or transient ischemic attack within 6 months
    • Chest pain or unexplained dizziness or fainting with physical exertion
    • Chronic obstructive pulmonary disease or asthma needing home oxygen
    • Other chronic disease or condition, such as advanced arthritis, that could limit ability to become physically active or limit life span to <5 years
    • Any other known reason for not participating in regular physical activity

    Exclusions related to metabolism - Past anti-diabetes medication use, except during gestational diabetes

    - Use of a medications known to produce hyperglycemia

    - Known disease leading to abnormal glucose metabolism

    Exclusions for conditions / behaviors likely to affect study conduct

    - Unable or unwilling to provide informed consent

    • Unable to communicate with the pertinent clinic staff
    • Unable to read written English or Spanish

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: one-on-one lifestyle
Clinical referral to diabetes prevention lifestyle intervention at School of Medicine campus
16 one-hour lifestyle program sessions (diet and physical activity skill building and problem solving) delivered about once weekly over 20-24 weeks, followed by monthly lifestyle maintenance sessions
Experimental: group-based community lifestyle
Clinical referral to group diabetes prevention lifestyle intervention program in community
16 one-hour lifestyle program sessions (diet and physical activity skill building and problem solving) delivered about once weekly over 20-24 weeks, followed by monthly lifestyle maintenance sessions

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Weight Loss
Time Frame: 12 months
We analyzed repeated outcome measures using longitudinal linear regression with 3 observations per participant (baseline, 6 months, and 12 months)
12 months

Secondary Outcome Measures

Outcome Measure
Time Frame
Self Report Physical Activity
Time Frame: 12 months
12 months
Rate of Community Program Participation
Time Frame: 6 months
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Ronald T Ackermann, MD, MPH, Northwestern University Feinberg School of Medicine

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2006

Primary Completion (Actual)

July 1, 2007

Study Completion (Actual)

July 1, 2007

Study Registration Dates

First Submitted

March 10, 2006

First Submitted That Met QC Criteria

March 10, 2006

First Posted (Estimate)

March 13, 2006

Study Record Updates

Last Update Posted (Estimate)

December 1, 2016

Last Update Submitted That Met QC Criteria

October 6, 2016

Last Verified

October 1, 2016

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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