A Study to Analyze the Role of Sympathetic Nervous System in Spontaneous Coronary Artery Dissection

NCT ID: NCT05699200

Last Updated: 2025-06-12

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

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-06-01

Study Completion Date

2027-08-31

Brief Summary

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The purpose of this research is to compare sympathetic function (flight or fight system) and arterial health including structure and mechanics of participants with history of spontaneous coronary artery dissection (SCAD) to age and sex matched control participants.

Detailed Description

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Conditions

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Spontaneous Coronary Artery Dissection Healthy

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

NONE

Study Groups

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Spontaneous coronary artery dissection (SCAD) group

Subject with a history of SCAD will undergo a series of diagnostic studies to assess neurovascular function.

Group Type OTHER

Arterial Tonometry

Intervention Type OTHER

We will measure arterial stiffness using arterial tonometry.

Echocardiogram

Intervention Type DIAGNOSTIC_TEST

We will collect limited ultrasound images of the heart.

Carotid Ultrasounds

Intervention Type DIAGNOSTIC_TEST

We will perform ultrasound imaging of the carotid artery.

Elastography

Intervention Type DIAGNOSTIC_TEST

We will measure the elastic properties of the arteries using elastography.

Ankle-Brachial Index

Intervention Type OTHER

We will measure the ankle-brachial index to assess peripheral artery blood flow.

Microneurography with sympathoexcitatory maneuvers

Intervention Type OTHER

We will measure sympathetic nerve activity at rest and in response to isometric handgrip, mental stress test, cold pressor test, Valsalva maneuvers.

Healthy Control Group

Healthy subjects will undergo a series of diagnostic studies to assess neurovascular function.

Group Type OTHER

Arterial Tonometry

Intervention Type OTHER

We will measure arterial stiffness using arterial tonometry.

Echocardiogram

Intervention Type DIAGNOSTIC_TEST

We will collect limited ultrasound images of the heart.

Carotid Ultrasounds

Intervention Type DIAGNOSTIC_TEST

We will perform ultrasound imaging of the carotid artery.

Elastography

Intervention Type DIAGNOSTIC_TEST

We will measure the elastic properties of the arteries using elastography.

Ankle-Brachial Index

Intervention Type OTHER

We will measure the ankle-brachial index to assess peripheral artery blood flow.

Microneurography with sympathoexcitatory maneuvers

Intervention Type OTHER

We will measure sympathetic nerve activity at rest and in response to isometric handgrip, mental stress test, cold pressor test, Valsalva maneuvers.

Interventions

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Arterial Tonometry

We will measure arterial stiffness using arterial tonometry.

Intervention Type OTHER

Echocardiogram

We will collect limited ultrasound images of the heart.

Intervention Type DIAGNOSTIC_TEST

Carotid Ultrasounds

We will perform ultrasound imaging of the carotid artery.

Intervention Type DIAGNOSTIC_TEST

Elastography

We will measure the elastic properties of the arteries using elastography.

Intervention Type DIAGNOSTIC_TEST

Ankle-Brachial Index

We will measure the ankle-brachial index to assess peripheral artery blood flow.

Intervention Type OTHER

Microneurography with sympathoexcitatory maneuvers

We will measure sympathetic nerve activity at rest and in response to isometric handgrip, mental stress test, cold pressor test, Valsalva maneuvers.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* For SCAD patients: history of SCAD as confirmed by coronary angiography or cardiac computed tomography angiography
* For controls: no cardiac disease history

Exclusion Criteria

* Pregnancy
* Known or suspected unstable cardiac condition within 4 weeks of the study
* Active treatment with anticoagulation or dual antiplatelet therapy
* Prisoner
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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National Heart, Lung, and Blood Institute (NHLBI)

NIH

Sponsor Role collaborator

Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

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Marysia Tweet

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Marysia Tweet, MD, MS

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic Rochester

Rochester, Minnesota, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Pamela Engrav

Role: CONTACT

507-255-6938

Other Identifiers

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1K23HL155506

Identifier Type: NIH

Identifier Source: secondary_id

View Link

21-005636

Identifier Type: -

Identifier Source: org_study_id

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