Sympathetic Transduction in Obesity-associated Hypertension (OB-HTN)

NCT ID: NCT04838678

Last Updated: 2025-08-24

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

EARLY_PHASE1

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-07-18

Study Completion Date

2026-08-31

Brief Summary

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The purpose of this study is to understand how the nervous system communicates to blood vessels to increase blood pressure during stress. The study will also investigate how hypertension and obesity influence the nervous system and vascular function. The study will involve measuring sympathetic nervous system activity and blood flow during common laboratory physiological stress protocols (e.g. hypoxia, exercise), and in response to infusion of drugs that cause vasodilation or vasoconstriction.

Detailed Description

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Conditions

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Hypertension Obesity

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Healthy Control

Healthy age matched controls with no history of cardiovascular disease and normal bodyweight

Group Type EXPERIMENTAL

Neuropeptide Y

Intervention Type DRUG

intra-arterial infusion of neuropeptide Y

Hypertensive

Hypertensive adults who are not obese

Group Type EXPERIMENTAL

Neuropeptide Y

Intervention Type DRUG

intra-arterial infusion of neuropeptide Y

Obese

Obese adults who are not hypertensive

Group Type EXPERIMENTAL

Neuropeptide Y

Intervention Type DRUG

intra-arterial infusion of neuropeptide Y

Obese-hypertensive

Obese adults who are being treated for hypertension

Group Type EXPERIMENTAL

Neuropeptide Y

Intervention Type DRUG

intra-arterial infusion of neuropeptide Y

Interventions

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Neuropeptide Y

intra-arterial infusion of neuropeptide Y

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Control - BMI\<30, age 18-55
* Hypertensive - BMI\<30, age 18-55, diagnosis of hypertension by 24-hour ambulatory blood pressure monitoring Obese- BMI\>30, age 18-55 Obese-hypertensive- BMI\>30, age 18-55, diagnosis of hypertension by 24-hour ambulatory blood pressure monitoring

Exclusion Criteria

All groups - presence of other significant cardiovascular disease, renal disease, history of smoking, diabetes,
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Texas Southwestern Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Christopher Hearon

Assistant Instructor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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University of Texas Southwestern Medical Center

Dallas, Texas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Christopher M Hearon, Ph.D.

Role: CONTACT

214-345-4624

Mary Childers

Role: CONTACT

214-345-6459

Facility Contacts

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CHristopher Hearon

Role: primary

8155405612

Other Identifiers

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STU2020-0749

Identifier Type: -

Identifier Source: org_study_id

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