Could treating mild hypertension in pregnancy help babies?
NCT ID NCT05989581
First seen Jun 27, 2026 · Last updated Aug 12, 2026 · Updated 2 times
Summary
This study tests whether treating mild high blood pressure (stage 1 hypertension) during pregnancy can improve baby birth weight. 74 pregnant people with blood pressure between 130-139/80-89 mmHg will be randomly assigned to either active treatment with blood pressure medication (labetalol or nifedipine) or usual care. The goal is to see if keeping blood pressure below 130/80 mmHg leads to healthier birth weights.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Labetalol or Nifedipine (blood pressure medication)
- What this could lead to
- If successful, this could lead to better outcomes for pregnant people with mild hypertension and their babies, potentially informing a larger study.
- What could go wrong
- This is a very early, small pilot study with only 74 participants. It may not show a clear benefit, and results may not apply to all pregnant people.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 74 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2024
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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14 to 89 years
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Viable singleton gestation * No fetal anomalies * Blood pressures 130-139/80-89mmHg on two occasions at least 4 hours apart prior to 20 weeks gestation * Planning to deliver at UAB Hospital * No indication for pregnancy termination * Receiving care at the UAB prenatal clinics Exclusion Criteria: * Declines Randomization * Known diagnosis of chronic hypertension ( BP ≥ 140/90mmHg) or current antihypertensive medication use * Fetal demise diagnosed prior to enrollment * Known major structural of chromosomal abnormalities prior to enrollment * Contraindication to first line antihypertensive (Nifedipine/ Labetalol) * Comorbidities requiring BP goals \< 130/80mmHg
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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UAB
RECRUITINGBirmingham, Alabama, 35294, United States
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