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CompletedNCT03482440Updated Jun 3, 2025Results posted

Angiotensin II and Chronic Inflammation in Persistent Microvascular Dysfunction Following Preeclampsia

An Early Phase 1 interventional study of Salsalate Oral Tablet and Placebo Oral Tablet in Preeclampsia, sponsored by University of Iowa. Completed at 2 sites in United States. Open to female participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-06-03.

Sponsored by University of Iowa · Early Phase 1, Interventional, and Basic science

Phase
Early Phase 1
Study type
Interventional
Enrollment
24
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

Women who develop preeclampsia during pregnancy are more likely to develop cardiovascular disease later in life, even if they are otherwise healthy. The reason why this occurs is unclear but may be related to blood vessel damage and increased inflammation that occurs during the preeclamptic pregnancy and persists postpartum. The purpose of this investigation is to 1) determine the mechanisms contributing to this lasting blood vessel damage and chronic inflammation, and to 2) identify factors (both physiological and pharmacological) that mitigate these negative effects in order to inform better clinical management of cardiovascular disease risk in women who have had preeclampsia.

02

Conditions studied

  • Preeclampsia

Keywords

  • preeclampsia
  • microvascular
  • inflammation
  • angiotensin II
03

In context

Pre-Eclampsia

916 studies on the registry are indexed under Pre-Eclampsia; 243 are open to participants now.

This study's enrollment of 24 is below the median of 110 across 480 interventional studies indexed under Pre-Eclampsia.

Browse Pre-Eclampsia studies →

Lead sponsor

University of Iowa is the lead sponsor of 279 studies on the registry; 33 are open to participants now.

Of its 45 completed or terminated interventional studies of FDA-regulated products, 40 (89%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Post-partum women who have delivered within two years and who have had a preeclamptic pregnancy diagnosed by their obstetrician before 34 weeks of gestation and confirmed according to the American College of Obstetricians and Gynecologists criteria for severe preeclampsia. [This information will be self-reported by the subjects.]
  • Post-partum women who have delivered within two years and who have had a normal pregnancy.
  • 18 years and older.

Exclusion criteria

Exclusion Criteria:

  • skin diseases
  • current tobacco use
  • diagnosed or suspected hepatic or metabolic disease
  • statin or other cholesterol-lowering medication
  • history of hypertension prior to pregnancy
  • history of gestational diabetes
  • current pregnancy
  • allergy to aspirin or NSAIDs or known allergy to materials used during the experiment (e.g. latex)
  • renal disease, bleeding disorders and history of gastrointestinal bleeding.
  • Known allergies to study drugs
  • Taking blood thinners, aspirin or NSAIDS.
  • Women who choose to breastfeed will not participate in any parts of the project that include salsalate.
05

Study design

Phase
Early Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
24 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    Drug: Placebo Oral Tablet

  • Experimental
    Salsalate

    Drug: Salsalate Oral Tablet

Interventions

  • 1500mg twice daily for 4 days prior to experimental testing

  • DrugPlacebo Oral Tablet

    Placebo oral table twice daily for 4 days prior to experimental testing

06

What researchers measure

Primary outcomes

  1. Microvascular Endothelial Function (Cutaneous Conductance, %Maximum)

    Endothelium-dependent vasodilation assessed as cutaneous conductance response (cutaneous conductance = local red blood cell flux/mean arterial pressure; %maximum) to exogenous acetylcholine delivered via intradermal microdialysis.

    Time frame: immediately following the 4 days or oral treatment (salsalate or placebo)

Secondary outcomes

  1. Peripheral Blood Mononuclear Cell Inflammatory Response to Ang II

    inflammatory cytokine (TNFalpha) release by peripheral blood mononuclear cells isolated from fresh whole blood collected via venipuncture and stimulated with angiotensin II ex vivo.

    Time frame: at the completion of 4 days of oral (placebo or salsalate) treatment

07

Results

Posted Jun 3, 2025

Participant flow

Participant flow — Overall Study
MilestonePlacebo Then SalsalateSalsalate Then Placebo
Started1310
Completed1310
Not completed00

Outcome measures

PrimaryMicrovascular Endothelial Function (Cutaneous Conductance, %Maximum)

Endothelium-dependent vasodilation assessed as cutaneous conductance response (cutaneous conductance = local red blood cell flux/mean arterial pressure; %maximum) to exogenous acetylcholine delivered via intradermal microdialysis.

Time frame:
immediately following the 4 days or oral treatment (salsalate or placebo)
Reported as:
Mean · % of maximal cutaneous conductance
Microvascular Endothelial Function (Cutaneous Conductance, %Maximum)
% of maximal cutaneous conductanceOral SalsalateOral Placebo
Microvascular Endothelial Function (Cutaneous Conductance, %Maximum)95 ± 677 ± 8
SecondaryPeripheral Blood Mononuclear Cell Inflammatory Response to Ang II

inflammatory cytokine (TNFalpha) release by peripheral blood mononuclear cells isolated from fresh whole blood collected via venipuncture and stimulated with angiotensin II ex vivo.

Time frame:
at the completion of 4 days of oral (placebo or salsalate) treatment
Reported as:
Mean · ng/ml
Peripheral Blood Mononuclear Cell Inflammatory Response to Ang II
ng/mlOral SalsalateOral Placebo
Peripheral Blood Mononuclear Cell Inflammatory Response to Ang II2.37 ± 1.282.77 ± 1.01

Adverse events

Collected over Adverse event data were collected on day 2 and day 4 of the 4 day treatment periods.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo0/23 (0%)0/23 (0%)0/23 (0%)
Salsalate0/23 (0%)0/23 (0%)2/23 (8.7%)
Most frequent other events
Most frequent other events
EventPlaceboSalsalate
tennitis while on salsalateEar and labyrinth disorders0/232/23

Baseline characteristics

Age, Continuous
Age, Continuous(years)All Study Participants
Mean30 ± 5
Sex: Female, Male
Sex: Female, Male(Participants)All Study Participants
Female23
Male0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)All Study Participants
American Indian or Alaska Native0
Asian1
Native Hawaiian or Other Pacific Islander0
Black or African American0
White22
More than one race0
Unknown or Not Reported0
08

Study locations

2 sites
  • University of Iowa
    Iowa City, Iowa 52242, United States
  • Pennsylvania State University
    University Park, Pennsylvania 16802, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No — No individual participant data will be shared

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 3, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03482440
Lead sponsor
University of Iowa
Responsible party
Anna Stanhewicz, PhD (Principal Investigator, University of Iowa) — Principal investigator
First posted
Mar 29, 2018
Start date
Aug 26, 2018
Primary completion
Jul 11, 2019
Completion
Dec 31, 2022
Results posted
Jun 3, 2025
Last update
Jun 3, 2025

Study contacts

Anna Stanhewicz, PhD
principal investigator · University of Iowa

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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