Vascular Effects of High-Salt After Preeclampsia

This study is looking into why women who have had preeclampsia (a serious blood pressure condition during pregnancy) might have a higher risk of heart problems later in life, especially how their bodies react to salt. Researchers are testing a drug called eplerenone to see how it affects blood vessel function in your skin when exposed to heat. They want to understand if problems with your blood vessels and a system in your body called the angiotensin system, which helps control blood pressure, are involved. To join, you must be a woman between 18 and 45 years old, and have given birth 12 weeks to 5 years ago, whether or not you had preeclampsia. The study aims to enroll 40 participants and is currently unclear about its recruitment status.

Study design
This is an interventional study planning to enroll 40 women. It compares the effects of eplerenone to a placebo (an inactive substance) on blood vessel function.
What's involved
You would undergo testing on Day 3 (while on a low-salt diet) and Day 10 (while on a low-salt diet with a high-salt supplement). You would also provide 24-hour urine samples on Day 2 and Day 9.
Compensation
Not stated in the trial record.
Follow-up
The primary endpoints are measured at Day 3 and Day 10, with urine samples collected on Day 2 and Day 9.

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NCT06749418

Vascular Effects of High-Salt After Preeclampsia

Recruiting
EARLY_PHASE1Ages 18–45InterventionalBasic science
Anna Stanhewicz, PhD
~40 participants
Updated 2026-02-13 on ClinicalTrials.gov
What's tested:Eplerenone

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Change in microvascular endothelial function following local eplerenone treatment compared to placebo treatment measured by laser-Doppler flowmetry
Measured over Day 3 (low-salt diet run in) and Day 10 (low-salt diet + high-salt supplement)
+1 more outcome measured
Preeclampsia
Preeclampsia Postpartum
1 sites across 1 states
Iowa1
  • Anna Reid-Stanhewicz, PhD · PRINCIPAL_INVESTIGATOR · University of Iowa

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Eligibility criteria

Inclusion

women who had preeclampsia and women who did not have preeclampsia
12 weeks to 5 years postpartum
18-45 years old

Exclusion

history of hypertension or metabolic disease before pregnancy
history of gestational diabetes
history of gestational hypertension without preeclampsia
skin diseases
current tobacco use
current antihypertensive medication
statin or other cholesterol-lowering medication
currently pregnant
body mass index less than 18.5 kg/m2
allergy to materials used during the experiment.(e.g. latex),
known allergy to study drugs or salt-supplement
  • Change in microvascular endothelial function following local eplerenone treatment compared to placebo treatment measured by laser-Doppler flowmetryDay 3 (low-salt diet run in) and Day 10 (low-salt diet + high-salt supplement)

    Cutaneous vascular vasodilator response (cutaneous conductance; %max) to local heating of the skin; intradermal microdialysis for the local delivery of eplerenone compared to control (Ringer's solution), followed by L-NAME infusion to quantify NO-dependent response

  • Changes in 24-hour urine sodiumDay 2, Day 9

    The investigators will measure urine sodium to ensure differences in salt-take between low- and high-salt.