Esomeprazole With Sildenafil Citrate in Women With Early-onset Preeclampsia

Overview

Previous studies have shown that expectant management of preeclampsia in the context of extreme prematurity may improve perinatal outcomes. Indeed, it has been estimated that for each additional day of pregnancy prolongation between 24 and 32 weeks of gestation, there is a nonlinear corresponding gain of 1% in fetal survival. In this study, we evaluate the use of Esomeprazole alone or with Sildenafil Citrate for the treatment of singleton pregnancies complicated by preeclampsia. We hypothesized that the potential increase in uteroplacental and fetoplacental blood flow with the use of Esomeprazole alone or with Sildenafil Citrate may be associated with pregnancy prolongation (the primary study outcome) and improved maternal and perinatal outcomes.

The etiology and pathophysiology of preeclampsia have not been clearly established; impaired immunologic adaptation and genetic incompatibility seem to be involved in deficient trophoblastic implantation. Placental hypoxia and endothelial dysfunction may lead to preeclampsia through an exacerbated systemic inflammatory reaction. Increased placental expression and secretion of soluble fms-like tyrosine kinase 1 appear to play a central role in the pathogenesis of preeclampsia. The soluble fms-like tyrosine kinase 1 antagonizes the proangiogenic biologic activity of circulating vascular endothelial growth factor and placental growth factor, leading to a failure of nitric oxide signaling to smooth muscle The investigators will conduct a randomized, double-blind, placebo-controlled trial designed to evaluate the efficacy and safety of Esomeprazole alone or with Sildenafil Citrate in preterm pregnancies complicated by preeclampsia.