NCT01563887

Brief Summary

This study will recruit drivers with Type 1 diabetes from across the U.S. and assign them to four groups based on their presumed risk level- routine care low risk, routine care high risk, or to one of two Internet interventions focused on reducing hypoglycemia driving. All subjects will be followed for two years to determine whether and which intervention was most effective at reducing hypoglycemia related driving collisions.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
568

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2012

Typical duration for not_applicable

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

February 1, 2012

Completed
28 days until next milestone

First Submitted

Initial submission to the registry

February 29, 2012

Completed
27 days until next milestone

First Posted

Study publicly available on registry

March 27, 2012

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2014

Completed
Last Updated

October 5, 2021

Status Verified

October 1, 2021

Enrollment Period

2.7 years

First QC Date

February 29, 2012

Last Update Submit

October 4, 2021

Conditions

Keywords

Type 1 DiabetesHypoglycemiaDrivingDriving safetyInternetWebTreatmentIntervention

Outcome Measures

Primary Outcomes (1)

  • The change in the number of hypoglycemia-related driving mishaps

    Driving Surveys will be completed prior to study initiation, immediately after the intervention is finished, and again in one year. Monthly Driving Diaries will be completed each month for the year after the intervention finishes beginning 14 weeks after submitting the first Driving Survey.

    10 weeks and 62 weeks after submitting the first Driving Survey

Study Arms (2)

DD.com

EXPERIMENTAL

Participants in this arm will receive the DiabetesDriving.com internet intervention intended to help reduce their risk of being in a future collision.

Behavioral: DD.com

DD.com + MI

EXPERIMENTAL

Participants will receive the DiabetesDriving Internet intervention and two 60 minute Motivational Interview (MI) sessions over the telephone. The MI sessions will take place once before and once following completion of the Internet intervention. This interview will focus on making explicit individual's ambivalence around changing behavior.

Behavioral: DD.com + MI

Interventions

DD.comBEHAVIORAL

Internet intervention in which participants will complete 6 Cores, or classes over the internet, focusing on risk factors and prevention, detection, and management of hypoglycemia before and while driving.

DD.com
DD.com + MIBEHAVIORAL

Prior to starting and immediately after finishing the DiabetesDriving.com internet intervention, a one hour motivational interview will be conducted with participants. Internet intervention in which participants will complete 6 Cores, or classes over the internet, focusing on risk factors and prevention, detection, and management of hypoglycemia before and while driving.

DD.com + MI

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Have been diagnosed with Type 1 diabetes for at least one year
  • Started taking insulin less than a year after being diagnosed with Type 1 diabetes
  • Measure blood glucose at least twice a day
  • Legal and valid driver's license
  • Drives greater than 5,000 per year
  • Regular access to the Internet, either through family computer or another readily accessible computer
  • Age 18 - 70 years
  • English speaker

You may not qualify if:

  • Type 2 diabetes
  • Does not take insulin
  • Does not drive
  • Does not have legal and valid driver's license
  • Does not have routine access to the internet

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Virginia

Charlottesville, Virginia, 22908, United States

Location

Related Publications (1)

  • Cox DJ, Gonder-Frederick LA, Singh H, Ingersoll KS, Banton T, Grabman JH, Schmidt K, Clarke W. Predicting and Reducing Driving Mishaps Among Drivers With Type 1 Diabetes. Diabetes Care. 2017 Jun;40(6):742-750. doi: 10.2337/dc16-0995. Epub 2017 Apr 12.

MeSH Terms

Conditions

Diabetes Mellitus, Type 1Hypoglycemia

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System Diseases

Study Officials

  • Daniel J Cox, Ph.D.

    University of Virginia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor, Department of Psychiatry and NB Sciences

Study Record Dates

First Submitted

February 29, 2012

First Posted

March 27, 2012

Study Start

February 1, 2012

Primary Completion

October 1, 2014

Study Completion

October 1, 2014

Last Updated

October 5, 2021

Record last verified: 2021-10

Locations