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Antepartum Chronic Epidural Therapy (ACET) to Improve Blood Flow to the Uterus, Placenta and Baby in Pre-Eclampsia and Intrauterine Growth Restriction

Pre-Eclampsia Clinical Trial

Official title:
Antepartum Chronic Epidural Therapy (ACET) Using Ropivacaine to Improve Uteroplacental Blood Flow in Pre-Eclampsia and Intrauterine Growth Restriction

Clinical Trial Summary

Pre-eclampsia (PE) and intrauterine growth restriction (IUGR) are common and important disorders of pregnancy. Both disorders are associated with an impairment of uteroplacental blood flow (UPBF). No effective therapy has been identified to reliably improve UPBF in these patients and typically, obstetric management involves interventional delivery, particularly problematic when remote from term. This study assess the hypothesis that epidural local anesthetics may improve UPBF in these patients.

Clinical Trial Description

Women with sonographic uterine artery flow abnormalities and either PE or IUGR (or both) were randomized to either ACET or non ACET control. Both groups were able to receive standard therapies (in-hospital monitoring, magnesium and anti-hypertensives as appropriate). The first five days of the therapeutic arm (ACET) consisted of a dose-finding trial, where epidural ropivacaine infusions (10ml/hr for 24 hours) of 0•04%, 0•06%, 0•08% and 0•1% and a saline placebo were each administered via tunneled epidural catheters in a randomized, double-blinded, cross-over design over five consecutive days; all three women received all doses. Doppler measurement of flow in the uterine artery was performed at baseline and at the end of each dose period. The ideal dose for an individual was determined to be lowest dose of drug giving maximal effect without side effects; in the second stage of the study, this dose was administered until delivery with the addition of a second placebo day to during this period. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00197340
Study type Interventional
Source Hadassah Medical Organization
Contact
Status Completed
Phase Phase 3
Start date August 2003
Completion date December 2006
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