CClinicalTrials.gg
CompletedNCT00069537Updated Sep 5, 2016

Continuous Glucose Monitors for Children With Diabetes Mellitus

A Phase 4 interventional study of The GlucoWatch® G2™ Biographer (GW2B) and The Continuous Glucose Monitoring System (CGMS™) in Diabetes Mellitus, Insulin-Dependent, sponsored by Jaeb Center for Health Research. Completed at 6 sites in United States. Open to participants aged 1 Year to 17 Years. Per ClinicalTrials.gov, last updated 2016-09-05.

Sponsored by Jaeb Center for Health Research · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
90
Allocation
Non-randomized
Ages
1 Year to 17 Years
Sex
All
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Study summary

Good control of blood glucose levels is important in preventing complications from diabetes. This study assessed the accuracy and reliability of two FDA-approved continuous glucose monitors, the Continuous Glucose Monitoring System (CGMS) and the GlucoWatch G2 Biographer (GW2B), in children with type 1 diabetes mellitus (T1DM).

Read the detailed description

Intensive control of blood glucose levels has been shown to substantially prevent or delay complications of T1DM in adolescents and adults. The major limitation to implementation of intensive glycemic control is hypoglycemia. Younger children may be at increased risk for hypoglycemia and the risk/benefit ratio of intensive glycemic control may be less favorable in this population. Intensive therapy has not been systematically evaluated in children less than 13 years of age. This study was conducted by the Diabetes Research in Children Network (DirecNet) to assess the accuracy of the CGMS and the GW2B glucose monitors in comparison with standard blood glucose measurements in an inpatient setting.

During 24-hour clinical research center stays at five clinical centers, approximately 90 children and adolescents with T1DM (1 to 17 years of age) wore two FDA-approved continuous glucose monitors, CGMS and GW2B, and had frequent serum glucose determinations during the day and night. To assess glucose monitor function during periods of rising and falling blood glucose, insulin-induced hypoglycemia and meal-induced hyperglycemia tests were also performed.

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Conditions studied

  • Diabetes Mellitus, Insulin-Dependent

Keywords

  • Diabetes Mellitus, Insulin-Dependent
  • Type 1 Diabetes
  • Diabetes in Children
  • Continuous Glucose Monitoring Devices
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In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's enrollment of 90 is above the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

Jaeb Center for Health Research is the lead sponsor of 126 studies on the registry; 17 are open to participants now.

Of its 16 completed or terminated interventional studies of FDA-regulated products, 14 (88%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
1 Year to 17 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Clinical diagnosis of type 1 diabetes mellitus for at least 1 year prior to study entry
  • For children over 2 years of age, body mass index between the 5th and 95th percentile for age and gender
  • Weight >= 12 kg (26.5 lbs) if \< 7 years of age and >= 16 kg (35 lbs) if >7 years of age
  • Normal hematocrit

Exclusion criteria

Exclusion Criteria

  • Current use of glucocorticoids
  • Skin or other medical disorders that would affect completion of the study
  • History of seizures other than those attributable to either hypoglycemia or high fever
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
90 participants

Interventions

  • DeviceThe GlucoWatch® G2™ Biographer (GW2B)
  • DeviceThe Continuous Glucose Monitoring System (CGMS™)
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What researchers measure

Primary outcomes

  1. Accuracy of the GlucoWatch G2 Biographer and CGMS

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Study locations

6 sites
  • Division of Pediatric Endocrinology and Diabetes, Stanford University
    Stanford, California 94305-5208, United States
  • Barbara Davis Center for Childhood Diabetes, University of Colorado
    Denver, Colorado 80262, United States
  • Department of Pediatrics, Yale University School of Medicine
    New Haven, Connecticut 06519, United States
  • Nemours Children's Clinic
    Jacksonville,, Florida 32207, United States
  • Jaeb Center for Health Research
    Tampa, Florida 33647, United States
  • Department of Pediatrics, University of Iowa Carver College of Medicine
    Iowa City, Iowa 52242, United States
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References and documents

Publications

  • Mauras N, Beck R, Ruedy K, Booth A, Weinzimer S, and the Diabetes Research in Children Network (DirecNet) Study Group. The Physiological Variations of Plasma Glucose Concentrations in Healthy, Non-Diabetic Children: Use of Continuous Glucose Sensors. Pediatr Res 2003 Apr;53(4Pt 2):1A-669A
  • Weinzimer S, Beck R, Ruedy K, Booth A, Boland E, and the Diabetes Research in Children Network (DirecNet) Study Group. Mealtime Glycemic Excursions in Pediatric Subjects with Type 1 Diabetes Mellitus (T1DM): The DirecNet Experience.Pediatr Res 2003 Apr;53(4Pt2):1A-669A
  • Tsalikian E, Beck R, Ruedy K, Booth A, Tansey M, and the Diabetes Research in Children Network (DirecNet) Study Group. Glycemic Pattern of Insulin Induced Hypoglycemia in Pediatric Subjects with Type 1 Diabetes Mellitus (T1DM): The DirecNet Experience. Pediatr Res 2003 Apr;53(4Pt2):1A-669A
  • Buckingham B, Beck R, Tamborlane W, Ruedy K, Boland E, Chase P, Wysocki T, Tsalikian E, Wilson D, Mauras N, Weinzimer D, Tansey M, Fiallo-Scharer R, Booth A, Kollman C, and the Diabetes Research In Children Network (DirecNet) Study Group. Diabetes Research in Children Network (DirecNet) Accuracy Study of the Continuous Glucose Monitoring System (CGMS) and GlucoWatch® G2™ Biographer (GWB) in Children with Type 1 Diabetes-A CRC-based Study. Diabetes 2003 Jun;52 Suppl 1:A36.
  • Wilson D, Buckingham B, Beck R, Ruedy K, Kollman C, Tsalikian E, Wysocki T, Weinzimer S, Chase P, and the Diabetes Research in Children Network (DirecNet) Study Group. A 5-center CRC-based Study of the Accuracy of the GlucoWatch®G2™ Biographer in Children and Adolescents with Type 1 Diabetes. Diabetes 2003 Jun;52 Suppl 1:A101.
  • Boland E, Weinzimer S, Beck R, Ruedy K, Kollman C, Buckingham B, Chase P, Tansey M, Mauras N, and the Diabetes Research In Children Network (DirecNet) Study Group. Performance of the Medtronic MiniMed Continuous Glucose Monitoring System (CGMS) in Children with T1DM in the DirecNet Accuracy Study. Diabetes 2003 Jun;52 Suppl 1:A90.
  • Fiallo-Scharer R, Chase P, Beck R, Ruedy K, Booth A, Wysocki T, Boland E, Buckingham B, Tsalikian E, and the Diabetes Research In Children Network (DirecNet) Study Group. Performance of the One Touch Ultra at Different Glucose Levels in Three Age Groups of Children with T1DM in the CRC-DirecNet Accuracy Study. Diabetes 2003 Jun;52 Suppl 1:A562.
  • Diabetes Research in Children Network (DIRECNET) Study Group. The accuracy of the GlucoWatch G2 biographer in children with type 1 diabetes: results of the diabetes research in children network (DirecNet) accuracy study. Diabetes Technol Ther. 2003;5(5):791-800. doi: 10.1089/152091503322526996. PubMed 14633344 ↗
  • Diabetes Research in Children Network (DIRECNET) Study Group. The accuracy of the CGMS in children with type 1 diabetes: results of the diabetes research in children network (DirecNet) accuracy study. Diabetes Technol Ther. 2003;5(5):781-9. doi: 10.1089/152091503322526987. PubMed 14633343 ↗
  • Diabetes Research In Children Network (Direcnet) Study Group. A multicenter study of the accuracy of the One Touch Ultra home glucose meter in children with type 1 diabetes. Diabetes Technol Ther. 2003;5(6):933-41. doi: 10.1089/152091503322640971. PubMed 14709195 ↗
  • Diabetes Research in Children Network (DirecNet) Study Group. Accuracy of the GlucoWatch G2 Biographer and the continuous glucose monitoring system during hypoglycemia: experience of the Diabetes Research in Children Network. Diabetes Care. 2004 Mar;27(3):722-6. doi: 10.2337/diacare.27.3.722. PubMed 14988292 ↗
  • Tsalikian E, Kollman C, Mauras N, Weinzimer S, Buckingham B, Xing D, Beck R, Ruedy K, Tamborlane W, Fiallo-Scharer R; Diabetes Research in Children Network (DirecNet) Study Group. GlucoWatch G2 Biographer alarm reliability during hypoglycemia in children. Diabetes Technol Ther. 2004 Oct;6(5):559-66. doi: 10.1089/dia.2004.6.559. PubMed 15628809 ↗
  • Tsalikian E, Beck RW, Kalajian A, Janz KF, Tansey MJ; Diabetes Research in Children Network (DirecNet) Study Group. Function of the GlucoWatch G2 Biographer during exercise. Diabetes Technol Ther. 2005 Feb;7(1):230. doi: 10.1089/dia.2005.7.230. No abstract available. PubMed 15738721 ↗
  • Buckingham B, Block J, Burdick J, Kalajian A, Kollman C, Choy M, Wilson DM, Chase P; Diabetes Research in Children Network. Response to nocturnal alarms using a real-time glucose sensor. Diabetes Technol Ther. 2005 Jun;7(3):440-7. doi: 10.1089/dia.2005.7.440. PubMed 15929675 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 5, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00069537
Lead sponsor
Jaeb Center for Health Research
Collaborators
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Responsible party
Sponsor
First posted
Sep 30, 2003
Start date
May 2002
Completion
Nov 2002
Last update
Sep 5, 2016

Study contacts

William V. Tamborlane, MD
study chair · Yale University
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Sep 2016. You cannot join it, but the record below documents what was studied.

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