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Scientists probe blood vessel changes in menopause

NCT ID NCT06417177

Knowledge-focused Sponsor: University of Missouri-Columbia Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Sep 11, 2026 · Updated 3 times

Summary

This study examines how aging and menopause change the way blood vessels widen in response to low oxygen. Researchers will give healthy women either a placebo, a beta-blocker (propranolol), or a bladder medication (gemtesa) to see how these drugs affect blood flow in the forearm. The goal is to better understand the role of certain receptors in blood vessel function across different stages of menopause.

What this could mean

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

Active substance
Propranolol and Gemtesa (oral drugs) and placebo
What this could lead to
If successful, this could help scientists understand why blood vessels react differently to low oxygen as women age and go through menopause.
What could go wrong
This is a very early phase 1 study with only 75 participants. It is designed to gather knowledge, not to test a treatment, so there may be no direct benefit to participants.

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

Early phase 1

The earliest testing in people: a first look at safety, in a very small group.

Participants

About 75 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jun 2024

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

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

18 to 70 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: * Female assigned at birth * Pre, peri- or post-menopausal * Healthy weight (BMI ≥18 and ≤30 kg/m2) Exclusion Criteria: * Male (assigned at birth) * Pregnancy, breastfeeding * Use of hormone replacement therapies * Hysterectomy * Body mass index \>30 kg/m2 * Diagnosed sleep apnea * Current smoking/Nicotine/Drug use * Nerve/neurologic disease * Cardiovascular, hepatic, renal, respiratory disease * Blood pressure ≥140/90 mmHg * Diabetes, Polycystic ovarian syndrome * Communication barriers * Prescription medications * Malignant cancer

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Conditions

The condition(s) this trial relates to.

Aneurysm Hypoxia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Aging Hypoxia Menopause Vasodilation

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • University of Missouri-Columbia

    RECRUITING

    Columbia, Missouri, 65211, United States

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