Melatonin Effects on Cardiovascular Disease Mechanisms in Midlife Women: A Randomized Clinical Trial

NCT ID: NCT06826755

Last Updated: 2025-11-24

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

NA

Total Enrollment

70 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-05-23

Study Completion Date

2027-01-31

Brief Summary

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The purpose of this research is to study the effects of 12 weeks of melatonin supplementation compared to placebo in women who are in the menopause transition (perimenopause) and have high blood pressure.

Detailed Description

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Conditions

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Perimenopause Hypertension

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Placebo

placebo will be taken orally once daily, one hour before bedtime. Placebo will be prepared as capsules of identical appearance and taste, using lactose powder as filler.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

Participants will take SR melatonin 5mg (or placebo) orally 1 hour before bed, for approximately 12 weeks. The study is comparing the effects of melatonin supplementation vs. placebo on cardiovascular risk measures in perimenopausal women.

Melatonin

Melatonin will be taken orally once daily, one hour before bedtime. The use of melatonin is not experimental but rather to observe its effects vs. placebo on cardiovascular risk measures in perimenopausal women.

Group Type OTHER

Terry Naturally® melatonin 5mg SR

Intervention Type DIETARY_SUPPLEMENT

Participants will take SR melatonin 5mg (or placebo) orally 1 hour before bed, for approximately 12 weeks. The study is comparing the effects of melatonin supplementation vs. placebo on cardiovascular risk measures in perimenopausal women.

Interventions

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Terry Naturally® melatonin 5mg SR

Participants will take SR melatonin 5mg (or placebo) orally 1 hour before bed, for approximately 12 weeks. The study is comparing the effects of melatonin supplementation vs. placebo on cardiovascular risk measures in perimenopausal women.

Intervention Type DIETARY_SUPPLEMENT

Placebo

Participants will take SR melatonin 5mg (or placebo) orally 1 hour before bed, for approximately 12 weeks. The study is comparing the effects of melatonin supplementation vs. placebo on cardiovascular risk measures in perimenopausal women.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Age 40-55 years old
* Female individuals with intact uterus and at least one ovary
* Hypertension

o Defined as a prior diagnosis of hypertension, use of antihypertensive agents, or office SBP/DBP ≥130/80 mmHg
* On stable medical regimen (≥ 2 months) if taking other medications

Exclusion Criteria

* Prescription sleeping medications or melatonin supplementation
* Pregnant or lactating
* Use of tobacco, nicotine or vaping products
* Night shift work
* On prescription aspirin
* Severe lactose intolerance
* History of substance use disorder
* History of suicidal ideation
* History of clinically diagnosed anemia (within the past 5 years) or low hemoglobin levels (\<11.6 g/dL) within the past 12 months
* Active cancer
* Severe daytime sleepiness (score \>15 at the Epworth Sleepiness Scale \[ESS\])81
* Current or recent (within the past 2 months) participation in other research studies at the discretion of study investigators
* Inability to provide written consent and/or to speak and read English
* Any other medical, geographic, or social factor making study participation impractical
Minimum Eligible Age

40 Years

Maximum Eligible Age

55 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

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Naima Covassin

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Naima Covassin, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic in Rochester

Rochester, Minnesota, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Perimenopause Study Team

Role: CONTACT

507-255-8897

Facility Contacts

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Naima Covassin, Ph.D.

Role: primary

Other Identifiers

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24-008966

Identifier Type: -

Identifier Source: org_study_id

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