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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01563120
Other study ID # 0002-11-EMC
Secondary ID
Status Completed
Phase Phase 4
First received December 28, 2011
Last updated October 30, 2016
Start date January 2012
Est. completion date December 2014

Study information

Verified date October 2016
Source HaEmek Medical Center, Israel
Contact n/a
Is FDA regulated No
Health authority Israel: Ministry of Health
Study type Interventional

Clinical Trial Summary

Rationale Gestational diabetes mellitus (GDM) complicates 5-7% of pregnancies. Major hazards include macrosomia, polyhydramnios, labor trauma and neonatal hypoglycemia. The ADA and ACOG recommend glucose control in order to reduce the incidence of hyperglycemia induced complications. Glucose control can be achieved using diet and life style changes. Insulin is initiated in women who fail to obtain glucose control with diet alone. During the past 11 years oral hypoglycemic drugs have been tested and proven to be efficacious and safe.

Objectives

1. To compare the efficacy and safety of glybenclamide vs. metformin in the treatment of women diagnosed with GDM

2. To evaluate the improvement in glycemic control after the addition of a second oral hypoglycemic drug after failure of the first

Hypothesis GDM is one of the major conditions contributing to obstetrical complications and prenatal morbidity. Improving glycemic control, by means of improving compliance and patient satisfaction, will decrease obstetrical complications, maternal and neonatal morbidity and have positive long term health implications.

Study design Prospective, randomized, open label

Study population Women between the ages 18-45, diagnosed with GDM will be recruited. GDM will be defined by a pathological OGTT (according to Carpenter and Coustan criteria) performed at or after 13 weeks of gestation.

Study period From recruitment until discharge of the newborn baby after delivery

Study protocol Women will be randomized at recruitment. Demographic and obstetrical data will be collected. Average glucose levels during the previous two weeks, estimated fetal weight and amniotic fluid index, and lab exams reflecting glycemic control will be noted. Women will provide daily glucose levels via fax or mail once a week. Glycemic control will be evaluated by a daily chart, including 7 measurements: 3 preprandial, 3 postprandial and a 7th measurement at 10 pm. Women will be invited to a monthly follow-up, which will include a sonographic evaluation of fetal weight and amniotic fluid, and lab exams. Follow-up protocol after 38 w of gestation will be according to our ward's protocol. The study was approved by the local Helsinki committee.

Time table Duration: two years


Recruitment information / eligibility

Status Completed
Enrollment 108
Est. completion date December 2014
Est. primary completion date June 2014
Accepts healthy volunteers No
Gender Female
Age group 18 Years to 45 Years
Eligibility Inclusion Criteria:

1. Patients with GDM with a gestational age between 14-33 weeks

2. Fasting glucose over 95 mg% or over 130 mg% an hour and a half postprandial (PPD) or a daily average over 100 mg%

3. At least a week of dietary treatment

4. Sonographic dating of the pregnancy earlier than 24 weeks

5. Signing a consent form

Exclusion Criteria:

1. Suspected IUGR earlier than 24 week of gestation

2. Major fetal malformation

3. Pre-gestational diabetes mellitus

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Intervention

Drug:
metformin
metformin up to 2550mg per day.
glybenclamide
glybenclamide up to 20mg per day.

Locations

Country Name City State
Israel Dep. OB/GYN, Emek Medical Center Afula

Sponsors (1)

Lead Sponsor Collaborator
HaEmek Medical Center, Israel

Country where clinical trial is conducted

Israel, 

Outcome

Type Measure Description Time frame Safety issue
Primary glycemic control 2 years No
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