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Maternal Glucose Measurement in Pregnancy Using a Continuous Ambulatory Subcutaneous Monitor

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00011622
Recruitment Status : Completed
First Posted : February 26, 2001
Last Update Posted : June 24, 2005
Information provided by:
National Center for Research Resources (NCRR)

Brief Summary:

This proposal is a pilot study to describe the variations of blood sugar in pregnant women with various degrees of glucose intolerance, and how they relate to standardized meals. Blood sugar control during pregnancy is important to prevent complications for the newborn. The variation and timing of the blood sugar measurements in gestational diabetics and how this relates to the baby's outcome is controversial. We will use an FDA approved device called Minimed Glucose Continuous Monitor, which is used in clinical practice for certain diabetics. It is very small, similar to a beeper, and is connected to the patient through a small plastic catheter subcutaneously. This measures blood sugar every five minutes for a total of 288 readings a day with minimum discomfort. The hypothesis of this study is that use of the Minimed glucose monitor will provide information about variations of blood sugar in gestational diabetics that is missed by capillary glucose monitors.

Our conclusions will allow us to compare blood glucose trends among the groups. After the data is analyzed in this pilot study, we plan to design a bigger study involving more subjects to study the impact of the blood sugar variations in the outcome of the newborn, and to obtain generalizable results for the population in general.

Condition or disease Intervention/treatment
Pregnancy Device: Continuous ambulatory subcutaneous glucose monitor

Detailed Description:
We will coordinate the study through the CRC. The women will have to come in only twice, to have the monitor placed and then taken off three days later. A blood sample will be collected at each visit. Meals and snacks will be provided for each day of the study, specially packaged, to supply an equivalent amount of calories for each subject. These will meet the nutritional requirements for both the mother and the fetus. Women will do separate fingerstick blood sugar measurements using a capillary glucometer four times a day, to ensure the accuracy of the sensor's readings.

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Study Type : Observational
Observational Model: Defined Population
Time Perspective: Other
Official Title: Maternal Glucose Measurement in Pregnancy Using a Continuous Ambulatory Subcutaneous Monitor

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Pregnancy
Drug Information available for: Dextrose

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes

1. Inclusion Criteria

  • Pregnant women, between 28 and 36 weeks of gestation. Gestational age will be determined by a combination of the date of the last menstrual period and ultrasound, done during the first or second trimester of pregnancy.
  • Previous glucose challenge test and if abnormal, an oral glucose tolerance test.
  • Body mass index (BMI) between 25 and 30 Kg/m2.
  • Gestational diabetes in a previous pregnancy, if glucose between pregnancies was normal.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00011622

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United States, Texas
University of Texas Medical School
Houston, Texas, United States, 40202
Sponsors and Collaborators
National Center for Research Resources (NCRR)
Layout table for additonal information Identifier: NCT00011622    
Other Study ID Numbers: NCRR-M01RR02558-0158
First Posted: February 26, 2001    Key Record Dates
Last Update Posted: June 24, 2005
Last Verified: December 2003