Could oxidative stress be the hidden culprit behind blood vessel damage after gestational diabetes?

NCT ID NCT05946785

First seen Jul 29, 2026 · Last updated Jul 30, 2026 · Updated 1 time

Summary

This early-phase trial investigates whether oxidative stress—an imbalance of damaging free radicals and protective antioxidants—causes small blood vessel dysfunction in otherwise healthy women who previously had gestational diabetes. Researchers will deliver two drugs (acetylcholine and insulin aspart) through tiny fibers placed in the skin to measure how blood vessels respond, with and without an antioxidant. The goal is to understand the underlying mechanism, not to test a new treatment.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
acetylcholine and insulin aspart perfused through microdialysis fibers in the skin
What this could lead to
If oxidative stress is confirmed as a key driver, this could point toward antioxidant-based strategies to protect blood vessel health after gestational diabetes.
What could go wrong
This is a very small, early-phase mechanistic study in healthy volunteers with a history of gestational diabetes. Results may not translate to real-world treatments or apply to broader populations.

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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.

Contacts and locations

Locations

  • University of Iowa

    RECRUITING

    Iowa City, Iowa, 52242, United States

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