Impact of Early Aging and Menopause on the Vascular Responses to Hypoxia

NCT ID: NCT06417177

Last Updated: 2025-09-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

EARLY_PHASE1

Total Enrollment

75 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-06-03

Study Completion Date

2026-07-31

Brief Summary

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The purpose of this study is to examine hypoxic vasodilation and the role of beta-adrenergic receptors in younger premenopausal, perimenopausal, and older postmenopausal women.

Detailed Description

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Conditions

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Aging Menopause Hypoxia Vasodilation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Participants

Study Groups

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Hypoxia

Participants will be exposed to hypoxia (low oxygen air) using a mask.

Group Type EXPERIMENTAL

Placebo

Intervention Type DRUG

Participants will receive a placebo in pill form.

Propranolol

Intervention Type DRUG

Participants will receive oral propranolol (1 mg/kg).

Gemtesa

Intervention Type DRUG

Participants will receive oral gemtesa (75 mg).

Cold pressor test

Participants will be exposed to the cold pressor test (ice water on the foot).

Group Type EXPERIMENTAL

Placebo

Intervention Type DRUG

Participants will receive a placebo in pill form.

Propranolol

Intervention Type DRUG

Participants will receive oral propranolol (1 mg/kg).

Gemtesa

Intervention Type DRUG

Participants will receive oral gemtesa (75 mg).

Hypercapnia

Participants will be exposed to hypercapnia (high carbon dioxide air) using a mask.

Group Type EXPERIMENTAL

Placebo

Intervention Type DRUG

Participants will receive a placebo in pill form.

Propranolol

Intervention Type DRUG

Participants will receive oral propranolol (1 mg/kg).

Gemtesa

Intervention Type DRUG

Participants will receive oral gemtesa (75 mg).

Interventions

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Placebo

Participants will receive a placebo in pill form.

Intervention Type DRUG

Propranolol

Participants will receive oral propranolol (1 mg/kg).

Intervention Type DRUG

Gemtesa

Participants will receive oral gemtesa (75 mg).

Intervention Type DRUG

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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University of Missouri-Columbia

OTHER

Sponsor Role lead

Responsible Party

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Jacqueline K Limberg, PhD

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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University of Missouri-Columbia

Columbia, Missouri, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Jacqueline Limberg

Role: CONTACT

573-882-2544

Facility Contacts

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Jacqueline K Limberg, Ph.D.

Role: primary

573-882-2420

Other Identifiers

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2100208

Identifier Type: -

Identifier Source: org_study_id

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