NCT00668590

Brief Summary

Mounting evidence documents the positive impact of using patient decision aids (PtDA) to facilitate shared decision-making (SDM) between patients and physicians in preference sensitive contexts. But overall use of PtDAs across the broader US healthcare system remains low. More compelling evidence is needed to make the case for policies that would accelerate adoption of PtDAs in routine clinical practice in primary care settings that serve diverse and economically disadvantaged populations. The investigators believe that it is now time to move beyond the subjective evaluations of PtDAs that are commonly reported in clinical trials of PtDAs, to evaluate whether these tools can also change health behavior and improve health outcomes. Therefore, the investigators will build on their expertise in working with community-based physicians to evaluate a newly developed PtDA focused on diabetes, using a mixed-methods approach. The investigators patient sample will be drawn from primary care practices serving African American, Latino and Caucasian patients. The investigators will conduct a 2-group randomized controlled trial to evaluate the effects of the diabetes PtDA, combined with telephone coaching, in increasing patient self-care and self-efficacy, increasing diabetes knowledge and improving clinical measures including glycosylated hemoglobin A1c, lipids and blood pressure. The investigators will also explore variation in effects of the patient decision aid, comparing African American, Latino and Caucasian patients and conduct in-depth interviews with a randomly selected subset of trial participants to explore patient perceptions of the decision aid and variation across racial/ethnic groups. The investigators hypothesize that, compared to the control condition, participants assigned to receiving the video PtDA program and telephone coaching will report: greater self-efficacy and diabetes knowledge, more engagement in self-care behaviors, better glycemic control as measured by hemoglobin A1c, as well as lower quantitative LDL and blood pressure levels. The conceptual model guiding the investigators trial is the Integrative Model of Behavior Change. The model includes three primary determinants of behavior:

  1. 1.attitudes toward performing the behavior
  2. 2.perceived social norms about performing the behavior
  3. 3.self-efficacy. The investigators expect the diabetes PtDA to affect each of these constructs directly or indirectly.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
201

participants targeted

Target at P50-P75 for not_applicable diabetes

Timeline
Completed

Started Aug 2008

Geographic Reach
1 country

2 active sites

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

First Submitted

Initial submission to the registry

April 25, 2008

Completed
4 days until next milestone

First Posted

Study publicly available on registry

April 29, 2008

Completed
3 months until next milestone

Study Start

First participant enrolled

August 1, 2008

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2010

Completed
Last Updated

April 11, 2011

Status Verified

April 1, 2011

Enrollment Period

2 years

First QC Date

April 25, 2008

Last Update Submit

April 8, 2011

Conditions

Keywords

Diabetes

Outcome Measures

Primary Outcomes (1)

  • Hemoglobin A1c

    6 months

Secondary Outcomes (1)

  • Diabetes self-care behaviors

    6 months

Study Arms (2)

1

EXPERIMENTAL
Behavioral: Patient video decision aid & telephone coaching

2

ACTIVE COMPARATOR
Behavioral: Printed educational brochure

Interventions

The decision aid is a 30 minute video program that educates patients about their role in diabetes care. Telephone coaching will assist patients in initiating behavior change.

1

The printed brochure is an educational brochure developed by the NIH.

2

Eligibility Criteria

Age40 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • At least 40 years old.
  • Diagnosed with Type 2 diabetes at least 1 year ago.
  • Attending the clinic for a routine diabetes follow-up visit.
  • Completed at least 2 clinic visits in the past 12 months.
  • Glycosylated hemoglobin A1c equal or greater than 8.0%
  • Owns a DVD player and television at home
  • Willing to provide informed consent.

You may not qualify if:

  • Primary language other than English.
  • Severe visual impairment
  • Currently enrolled in a diabetes education or support program, or participated in a diabetes education or support program in the last 6 months.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

UCLA Internal Medicine practices

Los Angeles, California, 90024, United States

Location

Community-based primary care practices

Los Angeles, California, 90291, United States

Location

Related Publications (1)

  • Frosch DL, Uy V, Ochoa S, Mangione CM. Evaluation of a behavior support intervention for patients with poorly controlled diabetes. Arch Intern Med. 2011 Dec 12;171(22):2011-7. doi: 10.1001/archinternmed.2011.497. Epub 2011 Oct 10.

MeSH Terms

Conditions

Diabetes Mellitus

Condition Hierarchy (Ancestors)

Glucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Study Officials

  • Dominick L Frosch, Ph.D.

    University of California, Los Angeles

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
CARE PROVIDER
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

April 25, 2008

First Posted

April 29, 2008

Study Start

August 1, 2008

Primary Completion

August 1, 2010

Study Completion

August 1, 2010

Last Updated

April 11, 2011

Record last verified: 2011-04

Locations