NCT00941447

Brief Summary

The purpose of this investigation is to conduct a 12-week study to compare the effects of a self-regulation intervention (SR), in which participants will self-monitor their blood glucose (BG) and adjust dietary intake and physical activity through the use of current dietary and physical activity guidelines to help regulate their BG, to an education and self-monitoring only intervention (SM), on blood glucose, self-efficacy, and diabetes self-management activities.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
15

participants targeted

Target at below P25 for not_applicable type-2-diabetes

Timeline
Completed

Started Apr 2009

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2009

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

July 15, 2009

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 17, 2009

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2011

Completed
Last Updated

April 5, 2018

Status Verified

April 1, 2018

Enrollment Period

1.8 years

First QC Date

July 15, 2009

Last Update Submit

April 3, 2018

Conditions

Keywords

Type 2 DiabetesObesitySelf-RegulationSelf-Efficacy

Outcome Measures

Primary Outcomes (1)

  • Blood Glucose

    12 weeks

Secondary Outcomes (5)

  • Caloric, fat and carbohydrate intake

    12 weeks

  • Self-efficacy

    12-weeks

  • Self-management activities

    12 weeks

  • Physical activities

    12 weeks

  • Quality of Life

    12 weeks

Study Arms (2)

Self-Regulation

EXPERIMENTAL

Self Regulation Arm focuses on increasing participants self-monitoring blood glucose (SMBG) AND awareness of self-regulatory approaches to managing diabetes.

Behavioral: DietaryBehavioral: Physical ActivityBehavioral: Self-Regulatory Approaches

Self-Monitoring

EXPERIMENTAL

Self-Monitoring Arm focuses on increasing participants self-monitoring blood glucose (SMBG) and providing nutrition education ONLY.

Behavioral: DietaryBehavioral: Physical Activity

Interventions

DietaryBEHAVIORAL

All participants in the investigation will receive a standard 12-week behavioral intervention with seven 30-45 minute phone interventions and education sessions. The intervention includes a reduced caloric prescription (1200-1500 kcal/day),fat gram prescription (30% or less kcals from fat) and carbohydrate gram prescription (150-190 grams).

Self-MonitoringSelf-Regulation

There is a physical Activity of 150 minutes/week of moderate-intense physical activity.

Self-MonitoringSelf-Regulation

Participants in this arm will receive extensive feedback based on their self-monitoring diary in which the researcher will be reinforced in areas that they are doing well in regarding their blood glucose and also assist in problem solving in areas that need improvement.

Self-Regulation

Eligibility Criteria

Age21 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Recruitment from Cherokee Health Systems, Healthy Eating and Activity Laboratory Ineligible Database, UTK faculty and staff, and local endocrinologists' offices.
  • Have been diagnosed with Type 2 diabetes for a minimum of 1 year.
  • Fasting BG of ≥ 126mg/dl6.
  • Between the age of 21 and 65 years. Older adults may have more medical co-morbidities and may require greater medical supervision29.
  • Considered overweight or obese by the body mass index (BMI). BMI between 27 and 45 kg/m2 29. The American Diabetes Association 2008 position statement for current nutrition recommendations and interventions for diabetes encourages those individuals within this BMI range to follow the low-calorie, low-fat diet that is prescribed in both conditions in this investigation6.
  • Not treated with insulin.
  • Are taking medicine that do not typically cause hypoglycemia: Refer to diabetes medication list in Appendices Ai-Aii.
  • Willing to increase physical activity to 150mins/week in 3 months.
  • Willing to be randomized to either condition.
  • Able to report that they can read and understand English.
  • Able to report that they can keep a food diary and perform basic mathematics.

You may not qualify if:

  • Report a heart condition, chest pain during periods of activity or rest or loss of consciousness on the Physical Activity Readiness Questionnaire (PAR-Q). Individuals self-reporting joint problems, prescription medication usage related to heart conditions, or other medical conditions that could limit exercise will be required to obtain written physician consent to participate.
  • Report being unable to walk for 2 blocks (1/4 mile) without stopping.
  • Report major psychiatric diseases.
  • Are compliant with dietary and physical activity recommendations to achieve ideal body weight.
  • Taking any weight loss medication.
  • Pregnant, expecting to be pregnant and/or lactating.
  • Have no working phone.
  • Are unwilling to participate in phone calls that are a part of the condition that in which they have been randomized.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Tennessee, Healthy Eating and Activity Laboratory (HEAL)

Knoxville, Tennessee, 37996, United States

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 2ObesitySelf-Control

Interventions

DietExercise

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesOverweightOvernutritionNutrition DisordersBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsSocial BehaviorBehavior

Intervention Hierarchy (Ancestors)

Nutritional Physiological PhenomenaDiet, Food, and NutritionPhysiological PhenomenaMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Lusi M Martin, BA

    University of Tennessee, Knoxville

    PRINCIPAL INVESTIGATOR
  • Hollie A Raynor, Ph.D

    University of Tennessee, Knoxville

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

July 15, 2009

First Posted

July 17, 2009

Study Start

April 1, 2009

Primary Completion

February 1, 2011

Study Completion

February 1, 2011

Last Updated

April 5, 2018

Record last verified: 2018-04

Locations