The Guardcontrol Trial: Study to Assess if Type 1 Diabetics Can Improve Using the Real-Time Values of Guardian RT

This study has been completed.
Sponsor:
Information provided by:
Medtronic
ClinicalTrials.gov Identifier:
NCT00111228
First received: May 18, 2005
Last updated: October 24, 2006
Last verified: October 2006

May 18, 2005
October 24, 2006
October 2004
Not Provided
Hemoglobin A1c (HbA1c)
Same as current
Complete list of historical versions of study NCT00111228 on ClinicalTrials.gov Archive Site
  • Average blood glucose
  • Occurrence of hypoglycemia below 70 mg/dl
  • Occurrence of hyperglycemia above 190 mg/dl
  • Fructosamine
  • Patient satisfaction
  • Quality of life
  • Physician feedback
  • Health economic data
Same as current
Not Provided
Not Provided
 
The Guardcontrol Trial: Study to Assess if Type 1 Diabetics Can Improve Using the Real-Time Values of Guardian RT
Randomised, Controlled, Multi-Centric, Clinical Study to Assess Whether Type 1 Diabetic Patients in Poor Glycemic Control Can Improve Using the Real-Time Values of Guardian T Versus Conventional Self-Monitoring Blood Glucose

The objective of the study is to determine whether patients with poor glycemic control can improve metabolic control using the real-time values of the Guardian® RT compared to conventional self-monitoring blood glucose finger-sticks.

Finger-stick based self-testing (SBGM), as well as diagnostic continuous glucose monitoring (CGMS®) allow diabetic patients to find a balance between the two hyper- and hypoglycemic extremes. Nevertheless, there are still patients who fail to achieve good control due to fear of hypoglycemia, or who underestimate post-prandial hyperglycemias.

The Guardian® RT Telemetered Glucose Monitoring System is indicated for continuous or periodic monitoring of real-time interstitial blood glucose values and low/high blood glucose alarms (when pre-set levels are reached) in persons with diabetes mellitus. The glucose values calculated by the device will be used to trigger hypo- and hyperglycemia alerts and will be displayed every 5 minutes. The Guardian® RT stores up to 21 days of data.

The overall primary objective of the study is to determine whether patients with poor glycemic control as evidenced by HbA1c > 8.1% can achieve improved metabolic control using the real-time values of the Guardian® RT compared to conventional self-monitoring blood glucose finger-sticks (control group) after 12 weeks of continuous use.

Interventional
Phase 4
Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Factorial Assignment
Masking: Open Label
Primary Purpose: Treatment
Diabetes Mellitus
Device: Guardian RT
Not Provided
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
162
May 2005
Not Provided

Inclusion Criteria:

  • Patient has signed Informed consent form prior to Study Entry.
  • Patients have been diagnosed with type 1 diabetes mellitus (DM) at least 12 months prior to Study Entry.
  • HbA1c must be 8.1% or above at study entry day (central lab value).
  • Patients must perform at least two self-monitoring blood glucose finger-sticks daily.
  • Patients are on intensive insulin therapy; for multiple daily injections (MDI) patients specifically, be on a schedule of a minimum of 3 injections daily.
  • Patients on intensive insulin therapy must be on continuous subcutaneous insulin infusion (CSII) or MDI at least 3 months prior to inclusion and should have been receiving diabetes care from the investigator of each centre for the 6 months prior to inclusion.
  • Patients must be using only insulin analogues or rapid-acting human insulin for their meal boluses.
  • Patients are willing to undergo all study procedures.
  • Patients are trained on how to adapt their insulin dose to their meals and are knowledgeable concerning how to calculate and apply corrective insulin boluses post-prandially, as well as on the influence of physical activity and other life style factors on their glycemia.
  • Patients are willing to participate in a Guardian® RT product training course
  • Patients understand how to adjust and administer corrective treatment.

Exclusion Criteria:

  • Patient has hearing problems/is deaf.
  • Patient has impaired vision/blindness so screen alarms cannot be recognized.
  • Alcohol or drug abuse other than nicotine.
  • Allergy to sensor or components of the sensor.
  • Manifest psychiatric disturbances.
  • Patients suffering from cancer, heart failure, kidney disease and other chronic debilitating conditions.
  • Patient does not have a reliable support person.
  • Patient is unwilling or unable to comply with the provisions of the protocol.
  • Patient has scheduled travel on a plane in the next 3 months.
  • Patient has scheduled a vacation which will occur between Visit 1 and Visit 2.
  • Patient is participating in another device or drug study. Subject must have completed the follow-up phase of any previous study at least 30 days prior to enrollment in this trial. The subject may only be enrolled in this study once. Patient has already participated in the Centre Qualification Phase.
Both
8 Years to 60 Years
No
Contact information is only displayed when the study is recruiting subjects
France,   Germany,   Israel,   Italy,   Slovenia,   Sweden,   United Kingdom
 
NCT00111228
EU 007_022004
Not Provided
Not Provided
Medtronic
Not Provided
Principal Investigator: Dorothee Deiss, MD Klinik für Allgemeine Charité, CVK
Medtronic
October 2006

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP