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Effect of Acetaminophen on Postpartum Blood Pressure Control in Preeclampsia With Severe Features

2016-09-22 20:53:24 | BioPortfolio

Summary

NSAIDs, specifically cyclo-oxygenase (COX) inhibitors, are known to increase blood pressure over time in non-pregnant adults, but the effect of COX-inhibitors on blood pressure in the setting of preeclampsia have not been well studied. This study aims to assess the effect of avoiding COX-inhibitors on postpartum blood pressure control among women diagnosed with preeclampsia with severe features. Eligible women will be randomized to receive either acetaminophen or ibuprofen for postpartum pain control. Both agents are first line therapies for pain control although ibuprofen has better pain control than acetaminophen. The primary outcome will be duration of postpartum severe-range hypertension.

Description

The proposed study is a randomized, controlled, double-masked trial comparing the effect of postpartum acetaminophen and ibuprofen on blood pressure among women with preeclampsia. Study participants will be randomized to receive either acetaminophen or ibuprofen for mild postpartum pain control. Study participants, study personnel and providers will be blinded to randomization status of study participants.

Potential study participants will be enrolled when they are diagnosed with a severe hypertensive disorder of pregnancy. This will usually occur prior to delivery, but may occur up to 6 hours after delivery. Patients diagnosed with preeclampsia without severe features will also be approached and enrolled at the time of diagnosis in anticipation for possible progression to preeclampsia with severe features. Once enrolled, study participants will not be randomized until delivery, at which time they will be randomized to receive either acetaminophen or ibuprofen for mild postpartum pain. Both groups will have available oxycodone for moderate to severe pain, per our routine. Study group allocation will only be known by the investigational pharmacy. The ibuprofen and acetaminophen will be made to appear identical to each other and will be unmarked through encapsulation. Block randomization will be used to ensure equal allocation to the two study arms.

For the duration of study participation, study participants will undergo postpartum monitoring with vital sign measurements (including blood pressure) every 4 hours, pain assessment with each administration of study medication, as well as daily evaluation of laboratory studies until they have normalized to the satisfaction of their provider. Study participants will receive the study drug every 6 hours from the time of delivery until hospital discharge, unless they refuse. Study participation will be complete upon hospital discharge. Study participants will be contacted by a study team member 6 weeks after delivery to ask about any additional complications or symptoms requiring visits to the emergency department or hospital readmission. Descriptive factors and clinical outcomes will be extracted from the medical record and de-identified by study personnel during each day of study participation.

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Pre-Eclampsia

Intervention

Acetaminophen, Ibuprofen

Status

Not yet recruiting

Source

University of New Mexico

Results (where available)

View Results

Links

Published on BioPortfolio: 2016-09-22T20:53:24-0400

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Onset of HYPERREFLEXIA; SEIZURES; or COMA in a previously diagnosed pre-eclamptic patient (PRE-ECLAMPSIA).

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