Intrapartum Glucose and Insulin Compared to Glucose Alone in Diabetic Women

Effect of Intrapartum Glucose With Compared to Without Constant Intravenous Insulin on Neonatal Hypoglycemia Among Diabetic Women. A Randomized Controlled Trial

This study aims to examine the effect of intrapartum treatment of diabetic women with combined glucose and constant insulin infusion compared to glucose alone on the incidence of neonatal hypoglycemia. Pregnant women with diabetes in pregnancy will be randomly divided during labor to 2 groups: group 1, will receive intravenous glucose with constant insulin infusion; group 2 will receive intravenous glucose alone. The primary outcome is the incidence of neonatal hypoglycemia.

Study Overview

• Status: Recruiting
• Conditions: Pregnancy in Diabetics; Obstetric Labor
• Intervention / Treatment: Drug: glucose solution and Insulin; Drug: glucose solution only

Detailed Description

About 2 to 9% of pregnant women are diagnosed with gestational diabetes. Peripartum complications attributed to diabetes include: birth trauma, neonatal hypoglycemia and hyperinsulinemia and neonatal hyperbilirubinemia. The incidence of neonatal hypoglycemia is about 40%. Strict glycemic control may lower the risk of neonatal complications. There is a lack of evidence on how to manage women with diabetes during labor. Previous studies recommended the use of intravenous saline solution boosted with 5% glucose and insulin as needed, glucose 5% with constant insulin infusion and others recommended the use lactated Ringer's solution. Most of these studies are either retrospective or have a small number of participants.

In this study we will examine the effect of 2 different protocols on glycemic control during labor and the immediate neonatal period. Women in group 1, will receive intravenous saline solution boosted with 5% glucose and constant insulin infusion. Women in group 2, will receive intravenous saline solution boosted with 5% glucose alone. The desirable intrapartum glucose level will be 70 to 100 mg/dL. Glucose levels will be checked hourly. Women in both groups will receive additional insulin infusion in cases of glucose levels above 100 mg/dL. Additionally, the 5% glucose solution will be substitute with lactated Ringer's solution in cases of glucose levels above 140 mg/dL.

Intravenous fluid regimens will be assigned according to a computer randomization sequence generation program. Women will randomly assigned to the 2 groups in a 1:1 ratio. The randomization sequence results will be kept in the delivery ward in a closed study box. Site investigators will enroll participants after confirming eligibility. The sequence will be concealed until intervention is assigned (and after obtaining a signed informed consent).

Our hypothesis is that 5% glucose combined with constant insulin infusion will achieve better glycemic control and thus will lead to lower rate of neonatal hypoglycemia. In order to detect a reduction of neonatal hypoglycemia from 40% to 20%, 182 women will be needed in both groups in order to achieve a level of significance of 95% (α, 2-sided = 0.05) and a power of 80% (β = 0.2).

• Study Type: Interventional
• Enrollment (Estimated): 200
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Gali Gali, MD; Phone Number: 972-4-6494035; Email: galit_ga@clalit.org.il
• Study Contact Backup: Name: Raed Salim, MD; Phone Number: 972-4-6494355; Email: salim_ra@clalit.org.il

Study Locations

• Israel
  • Afula, Israel, 18101
    • Recruiting
    • Haemek Medical Center
    • Contact: galit Garmi, MD; Phone Number: 97246494335; Email: galit_ga@clalit.org.il

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years to 58 years (Adult)
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• >37 weeks gestation
• gestational diabetes mellitus according to Carpenter and Coustan
• pregestational diabetes mellitus

Exclusion Criteria:

• Intrauterine fetal death
• estimated fetal weight<10p
• multiple gestation
• major fetal malformations

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: glucose solution and insulin; Participants will receive intravenous saline solution boosted with 5% glucose + 8 units regular insulin in a rate of 125 mL/h.	Drug: glucose solution and Insulin; Women in group 1, will receive intravenous saline solution boosted with 5% glucose combined with 8 units of insulin at a rate of 125mL/h. The desirable intrapartum glucose level will be 70 to 100 mg/dL. Glucose levels will be checked hourly. Glucose level between 100-140 mg/dL will be treated with additional intravenous insulin, 1 units/hour. Glucose level between 141-160 mg/dL will be treated with intravenous insulin, 2 units/hour. Additionally, the 5% glucose solution will be substitute with lactated Ringer's solution. Glucose level between 161-200 mg/dL will be treated with intravenous insulin, 4 units/hour. Glucose level above 200 mg/dL will be treated with intravenous insulin, 6 units/hour.; Other Names: Group 1; Drug: glucose solution only; Women in group 2, will receive intravenous saline solution boosted with 5% glucose only, at a rate of 125mL/h. Women in this group will be treated similar to group 1 if glucose levels crossed over 100 mg/dL.; Other Names: Group 2
Active Comparator: glucose solution only; Participants will receive intravenous saline solution boosted with 5% glucose in a rate of 125 mL/h.	Drug: glucose solution and Insulin; Women in group 1, will receive intravenous saline solution boosted with 5% glucose combined with 8 units of insulin at a rate of 125mL/h. The desirable intrapartum glucose level will be 70 to 100 mg/dL. Glucose levels will be checked hourly. Glucose level between 100-140 mg/dL will be treated with additional intravenous insulin, 1 units/hour. Glucose level between 141-160 mg/dL will be treated with intravenous insulin, 2 units/hour. Additionally, the 5% glucose solution will be substitute with lactated Ringer's solution. Glucose level between 161-200 mg/dL will be treated with intravenous insulin, 4 units/hour. Glucose level above 200 mg/dL will be treated with intravenous insulin, 6 units/hour.; Other Names: Group 1

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Neonatal hypoglycemia	about 2-3 hours postpartum the neonate will have a capillary glucose test	2-3 hours postpartum

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Maternal glycemic control during labor	During labor glucose level will be obtained every hour. Average glucose level during labor will be calculated after labor.	24 hours
Maternal urine ketones	Immediately post partum maternal urine will be checked for ketones	1 hour
Total amount of regular insulin during labor	The total amount of regular insulin during labor will be calculated post partum	24 hours
Mode of delivery	Mode of delivery	1 hour
Length of delivery	Length of delivery	24 hours
Breastfeeding	How many women breastfed in every study group	48 hours
Neonatal APGAR score	Neonatal APGAR score	5 minutes
Umbilical cord PH	Umbilical cord PH	30 minutes
Umbilical cord glucose level	Umbilical cord glucose level	30 minutes
The need for neonatal IV glucose infusion	The need for neonatal IV glucose infusion	48 hours
Neonatal jaundice	Neonatal jaundice- hyperbilirubinemia	48 hours
Length of neonatal hospital stay	Length of neonatal hospital stay	30 days
NICU admission	NICU admission	48 hours

Collaborators and Investigators

• Sponsor: HaEmek Medical Center, Israel
• Collaborators: Holy Family Hospital, Nazareth, Israel
• Investigators: Principal Investigator: Gali Gali, MD, HaEmemk Medical Center, Afula, Israel.

Publications and helpful links

General Publications

• Catalano PM, McIntyre HD, Cruickshank JK, McCance DR, Dyer AR, Metzger BE, Lowe LP, Trimble ER, Coustan DR, Hadden DR, Persson B, Hod M, Oats JJ; HAPO Study Cooperative Research Group. The hyperglycemia and adverse pregnancy outcome study: associations of GDM and obesity with pregnancy outcomes. Diabetes Care. 2012 Apr;35(4):780-6. doi: 10.2337/dc11-1790. Epub 2012 Feb 22.
• Soler NG, Soler SM, Malins JM. Neonatal morbidity among infants of diabetic mothers. Diabetes Care. 1978 Nov-Dec;1(6):340-50. doi: 10.2337/diacare.1.6.340.
• Sacks DA, Hadden DR, Maresh M, Deerochanawong C, Dyer AR, Metzger BE, Lowe LP, Coustan DR, Hod M, Oats JJ, Persson B, Trimble ER; HAPO Study Cooperative Research Group. Frequency of gestational diabetes mellitus at collaborating centers based on IADPSG consensus panel-recommended criteria: the Hyperglycemia and Adverse Pregnancy Outcome (HAPO) Study. Diabetes Care. 2012 Mar;35(3):526-8. doi: 10.2337/dc11-1641.
• Taricco E, Radaelli T, Rossi G, Nobile de Santis MS, Bulfamante GP, Avagliano L, Cetin I. Effects of gestational diabetes on fetal oxygen and glucose levels in vivo. BJOG. 2009 Dec;116(13):1729-35. doi: 10.1111/j.1471-0528.2009.02341.x. Epub 2009 Oct 13.
• Reece EA, Leguizamon G, Wiznitzer A. Gestational diabetes: the need for a common ground. Lancet. 2009 May 23;373(9677):1789-97. doi: 10.1016/S0140-6736(09)60515-8.
• Ju H, Rumbold AR, Willson KJ, Crowther CA. Borderline gestational diabetes mellitus and pregnancy outcomes. BMC Pregnancy Childbirth. 2008 Jul 30;8:31. doi: 10.1186/1471-2393-8-31.
• Carron Brown S, Kyne-Grzebalski D, Mwangi B, Taylor R. Effect of management policy upon 120 Type 1 diabetic pregnancies: policy decisions in practice. Diabet Med. 1999 Jul;16(7):573-8. doi: 10.1046/j.1464-5491.1999.00124.x.
• Kline GA, Edwards A. Antepartum and intra-partum insulin management of type 1 and type 2 diabetic women: Impact on clinically significant neonatal hypoglycemia. Diabetes Res Clin Pract. 2007 Aug;77(2):223-30. doi: 10.1016/j.diabres.2006.10.024. Epub 2006 Nov 28.
• Lean ME, Pearson DW, Sutherland HW. Insulin management during labour and delivery in mothers with diabetes. Diabet Med. 1990 Feb;7(2):162-4. doi: 10.1111/j.1464-5491.1990.tb01352.x.
• Balsells M, Corcoy R, Adelantado JM, Garcia-Patterson A, Altirriba O, de Leiva A. Gestational diabetes mellitus: metabolic control during labour. Diabetes Nutr Metab. 2000 Oct;13(5):257-62.
• Hussain K, Sharief N. The inaccuracy of venous and capillary blood glucose measurement using reagent strips in the newborn period and the effect of haematocrit. Early Hum Dev. 2000 Feb;57(2):111-21. doi: 10.1016/s0378-3782(99)00060-2.
• Hernandez-Rivas E, Flores-Le Roux JA, Benaiges D, Sagarra E, Chillaron JJ, Paya A, Puig-de Dou J, Goday A, Lopez-Vilchez MA, Pedro-Botet J. Gestational diabetes in a multiethnic population of Spain: clinical characteristics and perinatal outcomes. Diabetes Res Clin Pract. 2013 May;100(2):215-21. doi: 10.1016/j.diabres.2013.01.030. Epub 2013 Mar 26.
• Carpenter MW, Coustan DR. Criteria for screening tests for gestational diabetes. Am J Obstet Gynecol. 1982 Dec 1;144(7):768-73. doi: 10.1016/0002-9378(82)90349-0.
• HAPO Study Cooperative Research Group; Metzger BE, Lowe LP, Dyer AR, Trimble ER, Chaovarindr U, Coustan DR, Hadden DR, McCance DR, Hod M, McIntyre HD, Oats JJ, Persson B, Rogers MS, Sacks DA. Hyperglycemia and adverse pregnancy outcomes. N Engl J Med. 2008 May 8;358(19):1991-2002. doi: 10.1056/NEJMoa0707943.
• Committee on Fetus and Newborn; Adamkin DH. Postnatal glucose homeostasis in late-preterm and term infants. Pediatrics. 2011 Mar;127(3):575-9. doi: 10.1542/peds.2010-3851. Epub 2011 Feb 28.

Study record dates

Study Major Dates

• Study Start (Actual): October 31, 2017
• Primary Completion (Estimated): December 31, 2023
• Study Completion (Estimated): December 31, 2023

Study Registration Dates

• First Submitted: September 4, 2017
• First Submitted That Met QC Criteria: September 5, 2017
• First Posted (Actual): September 6, 2017

Study Record Updates

• Last Update Posted (Actual): October 11, 2023
• Last Update Submitted That Met QC Criteria: October 8, 2023
• Last Verified: October 1, 2023

More Information

Terms related to this study

• Keywords: Treatment; Gestational diabetes mellitus; Neonatal hypoglycemia; Pre-gestational diabetes mellitus
• Additional Relevant MeSH Terms: Pregnancy Complications; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Pregnancy in Diabetics; Pharmaceutical Solutions
• Other Study ID Numbers: 0056-17-EMC

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No