NCT00978835

Brief Summary

Diabetes and hypertension co-exist in approximately 10 million people in the USA and constitute severe risk factors for the development of such complications as heart and kidney disease. The investigators propose a randomized controlled trial in patients of community primary care practices to study a tailored telephone-administered behavioral intervention to improve control of blood pressure and blood sugar in patients with both hypertension and diabetes. The investigators hypothesize that 20% more patients talking to a nurse every other month about ways to improve blood pressure and blood sugar control will bring their blood pressure under control when compared to patients who talk with the nurse only about general health issues. If successful in improving control of these diseases this intervention can easily be adopted in other community primary care practices to lessen the burden of diabetes and hypertension in the USA.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
377

participants targeted

Target at P75+ for not_applicable diabetes

Timeline
Completed

Started May 2008

Longer than P75 for not_applicable diabetes

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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2008

Completed
1.4 years until next milestone

First Submitted

Initial submission to the registry

September 15, 2009

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 17, 2009

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2013

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2013

Completed
Last Updated

July 15, 2014

Status Verified

July 1, 2014

Enrollment Period

5.2 years

First QC Date

September 15, 2009

Last Update Submit

July 14, 2014

Conditions

Keywords

DiabetesHypertensionPhysical ActivityDietMedication Adherence

Outcome Measures

Primary Outcomes (1)

  • Blood Pressure

    2 years

Secondary Outcomes (1)

  • Hemoglobin A1c

    2 years

Study Arms (2)

Nurse case management

EXPERIMENTAL

Telephone calls by a nurse every two months to assess adherence to diet, physical activity, and pill-taking regimens. The nurse will then identify barriers to adherence to these recommendations and use motivational interviewing approaches to offer solutions to the barriers identified. No changes to medication are made.

Behavioral: Tailored telephone-based case management

Nurse Education

ACTIVE COMPARATOR

Didactic, non-interactive education by a nurse on general health topics.

Behavioral: Nurse Education

Interventions

Telephone calls by a nurse every two months to assess adherence to diet, physical activity, and pill-taking regimens. The nurse will then identify barriers to adherence to these recommendations and use motivational interviewing approaches to offer solutions to the barriers identified. No changes to medication are made.

Nurse case management
Nurse EducationBEHAVIORAL

Didactic, non-interactive education by a nurse on general health topics. Calls are made every two months.

Nurse Education

Eligibility Criteria

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

You may qualify if:

  • Enrolled and receiving primary care at one of 9 participating clinics in North Carolina
  • Diagnosis of diabetes as determined by billing data
  • Taking medication for diabetes
  • Diagnosis of hypertension as determined by billing data
  • Taking medication for hypertension
  • Most recent (within one year) Hemoglobin A1c \>= 7.5%

You may not qualify if:

  • Active psychosis
  • Hospitalization for stroke, myocardial infarction (MI), or coronary artery revascularization in the past 6 months
  • Type I diabetes
  • Does not speak English
  • No access to a telephone
  • Institution-dwelling or receiving comprehensive professional home health care
  • Hearing or speech inadequate for long interactive phone conversations
  • Terminal illness or active treatment for cancer
  • Cognitive impairment too severe to understand instructions

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Duke University Medical Center

Durham, North Carolina, 27705, United States

Location

MeSH Terms

Conditions

Diabetes MellitusHypertensionMotor ActivityMedication Adherence

Condition Hierarchy (Ancestors)

Glucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesVascular DiseasesCardiovascular DiseasesBehaviorPatient CompliancePatient Acceptance of Health CareTreatment Adherence and ComplianceHealth Behavior

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
SPONSOR

Study Record Dates

First Submitted

September 15, 2009

First Posted

September 17, 2009

Study Start

May 1, 2008

Primary Completion

July 1, 2013

Study Completion

July 1, 2013

Last Updated

July 15, 2014

Record last verified: 2014-07

Locations