NCT04144595

Brief Summary

Objective: To study the association of low maternal plasma glucose in 2 hour 75 g oral glucose tolerance test (OGTT) in women with impaired birth weight and determinate if this result is predictive of low birth weight (\<10th percentile according to the INTERGROWTH-21st newborn weight standards for gestational age/sex). Materials and methods: OGTT at 24-34 week gestation will be performed in pregnant women, the birth weight will be compared between women with low fasting plasma glucose (FPG) (\<10th percentile, \<65 mg/dL) and normal FPG (≥10th percentile, ≥ 65 mg/dL) also for 1 and 2-hour plasma glucose (1-h PG/2-h PG). Receiver operating characteristic curve analysis will be used to determine the optimal lower OGTT threshold for the prediction of low birth weight.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
300

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2019

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2019

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

October 28, 2019

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 28, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 30, 2019

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2019

Completed
Last Updated

January 13, 2020

Status Verified

January 1, 2020

Enrollment Period

10 months

First QC Date

October 28, 2019

Last Update Submit

January 9, 2020

Conditions

Keywords

Glucose Tolerance TestLow Birth Weight

Outcome Measures

Primary Outcomes (3)

  • Birth weight <10th percentile

    Birth weight \<10th percentile according to the INTERGROWTH-21st newborn weight standards for gestational age/sex.

    Newborn birth weight delivered on or after 25 week gestation will be recorded within the first hour after delivery

  • Birthweight <3th percentile

    Birthweight \<3th percentile according to the INTERGROWTH-21st newborn weight standards for gestational age/sex.

    Newborn birth weight delivered on or after 25 week gestation will be recorded within the first hour after delivery

  • Birth weight <2500 g

    Birth weight \<2500 g of newborn delivered on or after 37 week gestation

    Newborn birth weight delivered on or after 37 week gestation will be recorded within the first hour after delivery

Study Arms (2)

Low plasma glucose

This group will be formed by women with low plasma glucose: fasting plasma glucose (\<10th percentile, \<65 mg/dL), 1 or 2-hour low plasma glucose results after OGTT.

Diagnostic Test: 2 hour 75 g Oral glucose tolerance test

Normal plasma glucose

This group will be formed by women with normal plasma glucose: fasting plasma glucose ( ≥10th percentile, ≥65 mg/dL but \< 92 mg/dL), 1 or 2-hour normal glucose (\< 180 mg/dL and 153 mg/dL, respectively) results after OGTT.

Diagnostic Test: 2 hour 75 g Oral glucose tolerance test

Interventions

In pregnant women between 24 and 34 weeks of gestational age, plasma glucose was recorded after an overnight fast. Following consumption of 75 g glucose in 200 mL water over 10 min, the equivalent 1 hour and 2 hour values was recorded

Low plasma glucoseNormal plasma glucose

Eligibility Criteria

Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsPregnant women at 24-28 week gestation
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

The study population consisted of patients with singleton pregnancies who underwent OGTT at 24-34 weeks, had regular medical checkups throughout their entire pregnancy, had delivered on or after 25 week gestation and had fulfilled inclusion criteria. This study was performed according to the standards of the Helsinki Declaration and approval was obtained from the ethics and educational issues coordinating committee of our University Hospital.

You may qualify if:

  • Women with singleton pregnancy who underwent OGTT at 24-34 weeks and had regular medical checkups throughout their entire pregnancy.
  • Gestational age was determined based on the last menstrual period. If gestational age according to the last menstrual period differed by more than 7 days from that according to ultrasonography at \<11 weeks, the latter was used to assign gestational age.

You may not qualify if:

  • Inaccurate gestational age
  • OGTT being drawn outside the prescribed window of 24 to 34 weeks gestation.
  • Patients who could not swallow the OGTT solution or vomited afterward were excluded from the study.
  • Patients who were diagnosed with gestational diabetes at any time during their pregnancy were excluded.
  • The following comorbidities or complications that could affect fetal growth also were excluded: cardiac disease, preeclampsia, gestational hypertension, tobacco use, alcohol intake, stimulant drugs use, maternal systemic diseases (e.g., hypertension, pregestational diabetes, autoimmune disease, thrombotic disease, thyroid disease), intrauterine infectious diseases (e.g., cytomegalovirus, rubella, toxoplasmosis, syphilis), major neonatal anomalies or genetic and structural disorders (e.g., trisomy 21, trisomy 18, trisomy 13, congenital heart disease), placental disorders, and umbilical cord abnormalities.
  • Patients with high risk for preeclampsia, intrauterine growth restriction, trisomy 21, trisomy 18 and trisomy 13 in the first trimester screening test.
  • Patients with incomplete or missing data were also excluded.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Universitario Dr. José Eleuterio González

Monterrey, Nuevo León, 64460, Mexico

Location

Related Publications (9)

  • Nayak AU, Vijay AMA, Indusekhar R, Kalidindi S, Katreddy VM, Varadhan L. Association of hypoglycaemia in screening oral glucose tolerance test in pregnancy with low birth weight fetus. World J Diabetes. 2019 May 15;10(5):304-310. doi: 10.4239/wjd.v10.i5.304.

  • Shinohara S, Uchida Y, Hirai M, Hirata S, Suzuki K. Relationship between maternal hypoglycaemia and small-for-gestational-age infants according to maternal weight status: a retrospective cohort study in two hospitals. BMJ Open. 2016 Dec 2;6(12):e013749. doi: 10.1136/bmjopen-2016-013749.

  • Topcu HO, Iskender CT, Celen S, Oskovi A, Uygur D, Erkaya S. Maternal hypoglycemia on 50 g glucose challenge test: outcomes are influenced by fetal gender. J Perinat Med. 2016 May 1;44(4):369-76. doi: 10.1515/jpm-2015-0060.

  • Rogne T, Jacobsen GW. Association between low blood glucose increase during glucose tolerance tests in pregnancy and impaired fetal growth. Acta Obstet Gynecol Scand. 2014 Nov;93(11):1160-9. doi: 10.1111/aogs.12365. Epub 2014 Mar 26.

  • Melamed N, Hiersch L, Peled Y, Hod M, Wiznitzer A, Yogev Y. The association between low 50 g glucose challenge test result and fetal growth restriction. J Matern Fetal Neonatal Med. 2013 Jul;26(11):1107-11. doi: 10.3109/14767058.2013.770460. Epub 2013 Feb 27.

  • Vadakekut ES, McCoy SJ, Payton ME. Association of maternal hypoglycemia with low birth weight and low placental weight: a retrospective investigation. J Am Osteopath Assoc. 2011 Mar;111(3):148-52.

  • Feinberg JH, Magann EF, Morrison JC, Holman JR, Polizzotto MJ. Does maternal hypoglycemia during screening glucose assessment identify a pregnancy at-risk for adverse perinatal outcome? J Perinatol. 2005 Aug;25(8):509-13. doi: 10.1038/sj.jp.7211336.

  • Leng J, Hay J, Liu G, Zhang J, Wang J, Liu H, Yang X, Liu J. Small-for-gestational age and its association with maternal blood glucose, body mass index and stature: a perinatal cohort study among Chinese women. BMJ Open. 2016 Sep 15;6(9):e010984. doi: 10.1136/bmjopen-2015-010984.

  • Hernandez-Castro F, Berlanga-Garza A, Cruz-Gutierrez MD, Soria-Lopez JA, Villagomez-Martinez GE, Davila-Escamilla IV. Prediction of low birth weight with hypoglycemia in glucose tolerance test. Rev Saude Publica. 2021 May 17;55:30. doi: 10.11606/s1518-8787.2021055002543. eCollection 2021.

MeSH Terms

Interventions

Glucose Tolerance Test

Intervention Hierarchy (Ancestors)

Blood Chemical AnalysisClinical Chemistry TestsClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisDiagnostic Techniques, EndocrineInvestigative Techniques

Study Officials

  • Flavio Hernández Castro, MD PhD

    Obstetrics Department Universidad Autónoma de Nuevo León

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

October 28, 2019

First Posted

October 30, 2019

Study Start

January 1, 2019

Primary Completion

October 28, 2019

Study Completion

November 30, 2019

Last Updated

January 13, 2020

Record last verified: 2020-01

Data Sharing

IPD Sharing
Will not share

Locations