sFlt-1:PlGF Ratio in Gestational Diabetes: PREDICTION (PREeclampsia in DIabetiC gestaTION) Study

  • STATUS
    Recruiting
  • participants needed
    500
  • sponsor
    Azienda Ospedaliero, Universitaria Pisana
Updated on 6 February 2023

Summary

The ratio of soluble fms-like tyrosine kinase 1 (sFlt-1) to placental growth factor (PlGF) is elevated in pregnant women before the clinical onset of preeclampsia and can be used to predict the preeclampsia. However, its predictive value in pregnancy complicated by gestational diabetes is unclear. This study purposes are to validate a ratio of serum sFlt-1 to PlGF that would be predictive of the absence or presence of preeclampsia in the short term in women with singleton pregnancies complicated by diabetes in whom preeclampsia was suspected, and to evaluate the relationship among sFlt-1 to PlGF and placental histopathological alterations.

Description

Single center, observational, prospective study designed to validate a cutoff point of the sFlt-1:PlGF ratio for the prediction of the short-term absence or presence of preeclampsia in pregnancy complicated by gestational diabetes (GDM).

GDM women will be recruited at diabetes screening time (16-18 or 24-27 gestational weeks), performed according with the Italian National Guidelines by 75g - 2 hour Oral Glucose Tolerance Test. GDM will be defined according with International Association of Diabetes and Pregnancy Study Groups/World Health Organization 2013 criteria. A standardized medical history will be obtained in all the women at the time of their first visit, collecting data about maternal age, parity, last menstruation, pre-gestational weight, history of GDM, hypertension and macrosomia in previous pregnancies, family history of diabetes mellitus, education and employment. Moreover, during their visit, the women's weights were taken and their blood pressure measured. Blood samples for assessments of sFlt-1:PlGF ratio will be collected at visit 1 (baseline visit) and every 307 days after the previous visit until 36 gestational week (for a maximum of 4 determinations). At baseline and at each follow-up visits update of medical history, clinical assessments, laboratory testing and pregnancy evolution will be evaluated. During pregnancy all women will be receive standard diabetes and obstetric care, according with national guidelines. Diagnostic criteria for preeclampsia will be a new onset of both hypertension (systolic blood pressure 140 mmHg, diastolic blood pressure 90 mmHg, or both) and proteinuria (2+ protein or greater on dipstick urinalysis, 300 mg of protein per 24-hour urine collection, 30 mg /dl of protein in a spot urine sample, or a ratio of protein to creatinine of 30 mg/mmol) after 20 weeks of gestation. Only cases that met these prespecified criteria will be included in the analyses. At delivery, data items on maternal body weight at the end of pregnancy, time and mode of delivery, newborn bodyweight, preeclampsia as well as other maternal and fetal outcomes will be collected. Placental histopathological alterations will be detected in women who delivery by planned Cesarian section.

Details
Condition Gestational Diabetes, Diabetes Mellitus, Diabetes Mellitus Types I and II, Diabetes Prevention, Diabetes (Pediatric), Gestational Hypertension, Hypertension, High Blood Pressure (Hypertension), High Blood Pressure (Hypertension - Pediatric), Diabetes and Hypertension, Pre-Eclampsia, Preeclampsia, Pregnancy Complications, Pregnancy Complications, Diabetes Prevention, Diabetes and Hypertension, Diabetes Mellitus Types I and II, High Blood Pressure (Hypertension), High Blood Pressure (Hypertension - Pediatric), Diabetes (Pediatric), Preeclampsia, toxemia of pregnancy
Clinical Study IdentifierNCT04877119
SponsorAzienda Ospedaliero, Universitaria Pisana
Last Modified on6 February 2023

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