The Effect of Continuous Glucose Monitoring on Glycemic Control in Insulin-requiring Gestational Diabetes Mellitus
The Effect of Professional Continuous Glucose Monitoring on Diabetes Management,Hypoglycemia and Glycemic Control in Insulin-requiring Gestational Diabetes Mellitus
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
OBJECTIVES
- To determine if professional CGM improves glycemic control with less hypoglycaemia in insulin- requiring GDM
- To determine if professional CGM use alters management of insulin-requiring GDM
- To determine if professional CGM improves pregnancy outcomes in insulin-requiring GDM.
- To determine patient attitudes toward CGMS.
HYPOTHESES
- Professional CGMS improves glycaemic control in women with insulin-requiring GDM with less hypoglycaemia
- Professional CGM use will alter management of insulin-requiring GDM
- Professional CGMS will reduce perinatal morbidity and mortality in patients with insulin- requiring GDM
- Third trimester CGMS parameters will correlate better with perinatal outcomes compared with conventional measures of glycaemic control in pregnancy i.e. fructosamine/ A1c/ FBS/ 2hrs PP glucose
STUDY DESIGN
- This is a prospective, open-label, randomized controlled trial. We plan to recruit 80 women with gestational diabetes at 28 weeks gestation or less from the UMMC antenatal clinic. These women should be insulin-naïve but require insulin therapy. 40 subjects (Group 1) will be selected to undergo professional CGM at weeks 28, 32, and week 36 and another 40 subjects individually matched with regards, to age, baseline A1c, BMI will be recruited to undergo usual antenatal care without CGMS (Group 2). The CGMS data will be uploaded and reviewed at weeks 29, 33, and 37 and changes made to the therapeutic regimen as required by the endocrinologist. All mothers will be required to measure their glucose levels at 7 standardized points in a day daily. These glucose readings will be recorded in a diary together with a food log. All subjects will also be required to keep a hypoglycaemia diary.
- The primary outcomes will be glycaemic control in the third trimester and maternal hypoglycaemia. We also plan to assess changes to management made by the endocrinologist based on the additional information on glycemic control obtained from professional CGM use. We also plan to compare hypoglycaemia and hyperglycaemia detection rates using the CGMS and fingerstick methods of glucose evaluation. Patient satisfaction in both groups will also be assessed. Written and informed consent will be obtained in accordance with the principles of the Helsinki Declaration
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
Federal Territory
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Kuala Lumpur, Federal Territory, Malaysia, 59100
- University Malaya Medical Centre
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- women with gestational diabetes
- aged >18 years
- less than or equal to 28 weeks gestation of pregnancy
- singleton pregnancy
- insulin naive , but requiring insulin therapy
Exclusion Criteria:
- pregestational type 1 or 2 diabetes mellitus
- newly diagnosed overt diabetes in pregnancy ( HbA1c > 6.5)
- hypothyroidism
- Cushing's syndrome/ using exogenous steroids
- chronic infection ( HIV, Hepatitis B/C, Tuberculosis)
- any active chronic systemic disease ( except essential hypertension)
- assisted conception
- pregnancies with fetal anomalies / where imminent or preterm delivery is likely because of maternal disease ( besides gestational diabetes)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: NONE
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Active Comparator: Continuous Glucose Monitoring System
Patients in this arm will receive Continuous Glucose Monitoring System (CGMS) at 28,32 and 36 weeks of gestation and their insulin titrated according to the CGMS results.
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Patients in the intervention group will receive Continuous Glucose Monitoring(CGMS) at weeks 28, 32 and 36 and have the CGMS reviewed at weeks 29, 33 and 37 and management adjusted based on the CGMS readings
Other Names:
|
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No Intervention: Control
Patients in this arm will not receive any Continuous Glucose Monitoring System( CGMS) and the insulin titration will be made based on their fingerstick sugar readings.
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Glycemic Control by Measurement of HbA1c
Time Frame: From 28 weeks until delivery
|
From 28 weeks until delivery
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Hypoglycemia
Time Frame: 28 weeks until delivery
|
28 weeks until delivery
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Shireene R Vethakkan, MBBS,MD, University of Malaya
Publications and helpful links
General Publications
- Murphy HR, Rayman G, Lewis K, Kelly S, Johal B, Duffield K, Fowler D, Campbell PJ, Temple RC. Effectiveness of continuous glucose monitoring in pregnant women with diabetes: randomised clinical trial. BMJ. 2008 Sep 25;337:a1680. doi: 10.1136/bmj.a1680.
- Crowther CA, Hiller JE, Moss JR, McPhee AJ, Jeffries WS, Robinson JS; Australian Carbohydrate Intolerance Study in Pregnant Women (ACHOIS) Trial Group. Effect of treatment of gestational diabetes mellitus on pregnancy outcomes. N Engl J Med. 2005 Jun 16;352(24):2477-86. doi: 10.1056/NEJMoa042973. Epub 2005 Jun 12.
- Landon MB, Spong CY, Thom E, Carpenter MW, Ramin SM, Casey B, Wapner RJ, Varner MW, Rouse DJ, Thorp JM Jr, Sciscione A, Catalano P, Harper M, Saade G, Lain KY, Sorokin Y, Peaceman AM, Tolosa JE, Anderson GB; Eunice Kennedy Shriver National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network. A multicenter, randomized trial of treatment for mild gestational diabetes. N Engl J Med. 2009 Oct 1;361(14):1339-48. doi: 10.1056/NEJMoa0902430.
- Chen R, Yogev Y, Ben-Haroush A, Jovanovic L, Hod M, Phillip M. Continuous glucose monitoring for the evaluation and improved control of gestational diabetes mellitus. J Matern Fetal Neonatal Med. 2003 Oct;14(4):256-60. doi: 10.1080/jmf.14.4.256.260.
- Yogev Y, Visser GH. Obesity, gestational diabetes and pregnancy outcome. Semin Fetal Neonatal Med. 2009 Apr;14(2):77-84. doi: 10.1016/j.siny.2008.09.002. Epub 2008 Oct 15.
- Tan PC, Ling LP, Omar SZ. The 50-g glucose challenge test and pregnancy outcome in a multiethnic Asian population at high risk for gestational diabetes. Int J Gynaecol Obstet. 2009 Apr;105(1):50-5. doi: 10.1016/j.ijgo.2008.11.038. Epub 2009 Jan 19.
- Balaji V, Balaji M, Anjalakshi C, Cynthia A, Arthi T, Seshiah V. Inadequacy of fasting plasma glucose to diagnose gestational diabetes mellitus in Asian Indian women. Diabetes Res Clin Pract. 2011 Oct;94(1):e21-3. doi: 10.1016/j.diabres.2011.07.008. Epub 2011 Aug 10.
- Klonoff DC, Buckingham B, Christiansen JS, Montori VM, Tamborlane WV, Vigersky RA, Wolpert H; Endocrine Society. Continuous glucose monitoring: an Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2011 Oct;96(10):2968-79. doi: 10.1210/jc.2010-2756. Erratum In: J Clin Endocrinol Metab. 2021 May 13;106(6):e2460. J Clin Endocrinol Metab. 2022 Apr 19;107(5):e2220.
- Klonoff DC. Continuous glucose monitoring: roadmap for 21st century diabetes therapy. Diabetes Care. 2005 May;28(5):1231-9. doi: 10.2337/diacare.28.5.1231. No abstract available.
- Sathyapalan T, Mellor D, Atkin SL. Obesity and gestational diabetes. Semin Fetal Neonatal Med. 2010 Apr;15(2):89-93. doi: 10.1016/j.siny.2009.09.002. Epub 2009 Oct 28.
- Paramasivam SS, Chinna K, Singh AKK, Ratnasingam J, Ibrahim L, Lim LL, Tan ATB, Chan SP, Tan PC, Omar SZ, Bilous RW, Vethakkan SR. Continuous glucose monitoring results in lower HbA1c in Malaysian women with insulin-treated gestational diabetes: a randomized controlled trial. Diabet Med. 2018 Aug;35(8):1118-1129. doi: 10.1111/dme.13649. Epub 2018 May 23.
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 961.7
- PPUM/QSU/300-04/11 (Other Identifier: University Malaya Medical Centre, Malaysia)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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