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Postpartum Hypertension Study

Oral Nifedipine Versus Intravenous Labetalol for Postpartum (PP) Hypertensive Emergency: A Randomized Clinical Trial (RCT)

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05139238
Enrollment
2
Registered
2021-12-01
Start date
2022-07-04
Completion date
2025-08-21
Last updated
2026-05-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypertensive Emergency, Postpartum Preeclampsia, Postpartum Pregnancy-Induced Hypertension, Pregnancy-Induced Hypertension in Postpartum

Keywords

Hypertension, Hypertensive Emergency, Postpartum, Preeclampsia

Brief summary

The purpose of this study is to assess which blood pressure medication (intravenous labetalol or oral nifedipine) works better in treating severely elevated blood pressure in women who have just delivered a baby.

Detailed description

Hypertensive emergencies cause significant maternal morbidity and mortality in the postpartum period. In order to reduced these risks, the recommendation is to treat women with severe range blood pressure with either intravenous labetalol or oral nifedipine; it is unclear which medication is superior. The objective of this study is to prospectively enroll women who have hypertensive emergencies in the postpartum period; women will be randomized in a 1:1 fashion and treated with one of the two antihypertensives to see which one works better.

Interventions

DRUGLabetalol

Intravenous labetalol, a short acting ant-hypertensive

DRUGNifedipine

Oral nifedipine, a short acting ant-hypertensive

Sponsors

Columbia University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients admitted to labor and delivery (L\&D) with blood pressure (BP) in severe range, defined as a systolic ≥160 mm Hg and/or diastolic ≥110 mm Hg * Postpartum, immediately to 6 weeks postpartum * With a prior diagnosis of chronic hypertension (not on medication) or hypertensive disorder of pregnancy

Exclusion criteria

* They may not have previously had exposure to either study medication within the previous 24-hour period. * Patients with a known atrial-ventricular heart block or moderate to severe bronchial asthma will be excluded, or other contraindication to receiving either study medication

Design outcomes

Primary

MeasureTime frameDescription
Time to Initial Blood Pressure Control (Minutes)Up to 48 hoursThe primary outcome will be time (minutes) interval required to achieve the therapeutic BP goal of \<160 mmHg systolic and \<110 mmHg diastolic.

Secondary

MeasureTime frameDescription
Number of Recurrence of Severe Blood PressureUp to 48 hoursThe number of times a patient has recurrence of severe hypertensive necessitating treatment with an antihypertensive.
Total Number of Participants Who Need for Second Antihypertensive AgentUp to 48 hoursThe need to use a second (alternative) antihypertensive medication.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORWhitney A. Booker, MD

Columbia University

Participant flow

Pre-assignment details

0 participants crossed over to receive the other intervention

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 10 / 1
other
Total, other adverse events
0 / 10 / 1
serious
Total, serious adverse events
0 / 10 / 1

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 7, 2026