A randomized clinical trial to assess the efficacy and safety of real-time continuous glucose monitoring in the management of type 1 diabetes in young children aged 4 to Nelly Mauras 1 , Roy Beck, Dongyuan Xing, Katrina Ruedy, Bruce Buckingham, Michael Tansey, Neil H White, Stuart A Weinzimer, William Tamborlane, Craig Kollman; Diabetes Research in Children Network (DirecNet) Study Group Collaborators, Affiliations Expand Collaborators Diabetes Research in Children Network (DirecNet) Study Group: Eva Tsalikian, Michael J Tansey, Julie Coffey, Joanne Cabbage, Sara Salamati, Nelly Mauras, Larry A Fox, Kim Englert, Joe Permuy, Kaitlin Sikes, Bruce A Buckingham, Darrell M Wilson, Paula Clinton, Kimberly Caswell, Stuart A Weinzimer, William V Tamborlane, Jennifer Sherr, Amy Steffen, Kate Weyman, Melinda Zgorski, Eileen Tichy, Neil H White, Ana Maria Arbelaez, Lucy Levandoski, Angie Starnes, Roy W Beck, Katrina J Ruedy, Craig Kollman, Dongyuan Xing, Callyn Hall, Beth Stevens, Gilman D Grave, Karen K Winer, Ellen Leschek, Mark Sperling, Dorothy M Becker, Patricia Cleary, Carla Greenbaum, Antoinette Moran, Michael W Steffes, Jean M Bucksa, Maren L Nowicki, Vicky Makky Affiliation 1 Division of Pediatric Endocrinology, Nemours Children's Clinic, Jacksonville, Florida, USA. direcnet@jaeb.org PMID: 22210571 PMCID: PMC3263860 DOI: 10.2337/dc11-1746 Free PMC article Item in Clipboard
Nelly Mauras, Roy Beck, Dongyuan Xing, Katrina Ruedy, Bruce Buckingham, Michael Tansey, Neil H White, Stuart A Weinzimer, William Tamborlane, Craig Kollman, Diabetes Research in Children Network (DirecNet) Study Group, Eva Tsalikian, Michael J Tansey, Julie Coffey, Joanne Cabbage, Sara Salamati, Nelly Mauras, Larry A Fox, Kim Englert, Joe Permuy, Kaitlin Sikes, Bruce A Buckingham, Darrell M Wilson, Paula Clinton, Kimberly Caswell, Stuart A Weinzimer, William V Tamborlane, Jennifer Sherr, Amy Steffen, Kate Weyman, Melinda Zgorski, Eileen Tichy, Neil H White, Ana Maria Arbelaez, Lucy Levandoski, Angie Starnes, Roy W Beck, Katrina J Ruedy, Craig Kollman, Dongyuan Xing, Callyn Hall, Beth Stevens, Gilman D Grave, Karen K Winer, Ellen Leschek, Mark Sperling, Dorothy M Becker, Patricia Cleary, Carla Greenbaum, Antoinette Moran, Michael W Steffes, Jean M Bucksa, Maren L Nowicki, Vicky Makky, Nelly Mauras, Roy Beck, Dongyuan Xing, Katrina Ruedy, Bruce Buckingham, Michael Tansey, Neil H White, Stuart A Weinzimer, William Tamborlane, Craig Kollman, Diabetes Research in Children Network (DirecNet) Study Group, Eva Tsalikian, Michael J Tansey, Julie Coffey, Joanne Cabbage, Sara Salamati, Nelly Mauras, Larry A Fox, Kim Englert, Joe Permuy, Kaitlin Sikes, Bruce A Buckingham, Darrell M Wilson, Paula Clinton, Kimberly Caswell, Stuart A Weinzimer, William V Tamborlane, Jennifer Sherr, Amy Steffen, Kate Weyman, Melinda Zgorski, Eileen Tichy, Neil H White, Ana Maria Arbelaez, Lucy Levandoski, Angie Starnes, Roy W Beck, Katrina J Ruedy, Craig Kollman, Dongyuan Xing, Callyn Hall, Beth Stevens, Gilman D Grave, Karen K Winer, Ellen Leschek, Mark Sperling, Dorothy M Becker, Patricia Cleary, Carla Greenbaum, Antoinette Moran, Michael W Steffes, Jean M Bucksa, Maren L Nowicki, Vicky Makky
Abstract
Objective: Continuous glucose monitoring (CGM) has been demonstrated to improve glycemic control in adults with type 1 diabetes but less so in children. We designed a study to assess CGM benefit in young children aged 4 to 9 years with type 1 diabetes.
Research design and methods: After a run-in phase, 146 children with type 1 diabetes (mean age 7.5 ± 1.7 years, 64% on pumps, median diabetes duration 3.5 years) were randomly assigned to CGM or to usual care. The primary outcome was reduction in HbA(1c) at 26 weeks by ≥0.5% without the occurrence of severe hypoglycemia.
Results: The primary outcome was achieved by 19% in the CGM group and 28% in the control group (P = 0.17). Mean change in HbA(1c) was -0.1% in each group (P = 0.79). Severe hypoglycemia rates were similarly low in both groups. CGM wear decreased over time, with only 41% averaging at least 6 days/week at 26 weeks. There was no correlation between CGM use and change in HbA(1c) (r(s) = -0.09, P = 0.44). CGM wear was well tolerated, and parental satisfaction with CGM was high. However, parental fear of hypoglycemia was not reduced.
Conclusions: CGM in 4- to 9-year-olds did not improve glycemic control despite a high degree of parental satisfaction with CGM. We postulate that this finding may be related in part to limited use of the CGM glucose data in day-to-day management and to an unremitting fear of hypoglycemia. Overcoming the barriers that prevent integration of these critical glucose data into day-to-day management remains a challenge.
Trial registration: ClinicalTrials.gov NCT00760526.
Figures
References
- Beck RW, Hirsch IB, Laffel L, et al. ; Juvenile Diabetes Research Foundation Continuous Glucose Monitoring Study Group The effect of continuous glucose monitoring in well-controlled type 1 diabetes. Diabetes Care 2009;32:1378–1383
- Tamborlane WV, Beck RW, Bode BW, et al. ; Juvenile Diabetes Research Foundation Continuous Glucose Monitoring Study Group Continuous glucose monitoring and intensive treatment of type 1 diabetes. N Engl J Med 2008;359:1464–1476
- Beck RW, Buckingham B, Miller K, et al. ; Juvenile Diabetes Research Foundation Continuous Glucose Monitoring Study Group Factors predictive of use and of benefit from continuous glucose monitoring in type 1 diabetes. Diabetes Care 2009;32:1947–1953
- Bergenstal RM, Tamborlane WV, Ahmann A, et al. ; STAR 3 Study Group Effectiveness of sensor-augmented insulin-pump therapy in type 1 diabetes. N Engl J Med 2010;363:311–320
- Hirsch IB, Abelseth J, Bode BW, et al. Sensor-augmented insulin pump therapy: results of the first randomized treat-to-target study. Diabetes Technol Ther 2008;10:377–383
- O’Connell MA, Donath S, O’Neal DN, et al. Glycaemic impact of patient-led use of sensor-guided pump therapy in type 1 diabetes: a randomised controlled trial. Diabetologia 2009;52:1250–1257
- Pickup JC, Freeman SC, Sutton AJ. Glycaemic control in type 1 diabetes during real time continuous glucose monitoring compared with self monitoring of blood glucose: meta-analysis of randomised controlled trials using individual patient data. BMJ 2011;343:d3805.
- Raccah D, Sulmont V, Reznik Y, et al. Incremental value of continuous glucose monitoring when starting pump therapy in patients with poorly controlled type 1 diabetes: the RealTrend study. Diabetes Care 2009;32:2245–2250
- Barnard K, Thomas S, Royle P, Noyes K, Waugh N. Fear of hypoglycaemia in parents of young children with type 1 diabetes: a systematic review. BMC Pediatr 2010;10:50.
- Haugstvedt A, Wentzel-Larsen T, Graue M, Søvik O, Rokne B. Fear of hypoglycaemia in mothers and fathers of children with Type 1 diabetes is associated with poor glycaemic control and parental emotional distress: a population-based study. Diabet Med 2010;27:72–78
- Patton SR, Dolan LM, Henry R, Powers SW. Fear of hypoglycemia in parents of young children with type 1 diabetes mellitus. J Clin Psychol Med Settings 2008;15:252–259
- Gibb I, Parnham A, Fonfrède M, Lecock F. Multicenter evaluation of Tosoh glycohemoglobin analyzer. Clin Chem 1999;45:1833–1841
- Juvenile Diabetes Research Foundation Continuous Glucose Monitoring Study Group Validation of measures of satisfaction with and impact of continuous and conventional glucose monitoring. Diabetes Technol Ther 2010;12:679–684
- Antisdel JE. Diabetes-specific distress among parents of youth with type 1 diabetes (Abstract). Dissertation Abstracts International 2001;61:6123
- Clarke WL, Gonder-Frederick A, Snyder AL, Cox DJ. Maternal fear of hypoglycemia in their children with insulin dependent diabetes mellitus. J Pediatr Endocrinol Metab 1998;11(Suppl. 1):189–194
- Cox DJ, Irvine A, Gonder-Frederick L, Nowacek G, Butterfield J. Fear of hypoglycemia: quantification, validation, and utilization. Diabetes Care 1987;10:617–621
- Green LB, Wysocki T, Reineck BM. Fear of hypoglycemia in children and adolescents with diabetes. J Pediatr Psychol 1990;15:633–641
- Diabetes Research in Children Network (DirecNet) Study Group Youth and parent satisfaction with clinical use of the GlucoWatch G2 Biographer in the management of pediatric type 1 diabetes. Diabetes Care 2005;28:1929–1935
- American Diabetes Association Standards of medical care in diabetes—2008. Diabetes Care 2008;31(Suppl. 1):S12–S54
Source: PubMed