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RECRUITING

NCT07313410

Using Near-Infrared Light to Better Understand Peripheral Artery Disease

Sponsor: The University of Texas at Arlington

View on ClinicalTrials.gov

Summary

The goal of this study is to better understand how blood flows and how oxygen is utilized in the lower limbs of people who suffer from peripheral artery disease. This study will also assess how these factors affect treatment outcomes. Specific aims include: Aim 1: Utilize BB-NIR-DCS to differentiate PAD patients experiencing primary oxygen delivery limitations from those suffering from mitochondrial dysfunction. Aim 2: Test the efficacy of BB-NIR-DCS at predicting individual responses to vascular intervention.

Official title: Near-Infrared Diffuse Correlation Spectroscopy to Better Define the Pathophysiology of Peripheral Artery Disease

Key Details

Gender

All

Age Range

18 Years - Any

Study Type

OBSERVATIONAL

Enrollment

120

Start Date

2025-11-01

Completion Date

2028-12-31

Last Updated

2026-01-02

Healthy Volunteers

Yes

Conditions

Peripheral Artery Disease (PAD)

Inclusion Criteria: * Cases, Aim 1 1. 18 or older 2. willing to participate under the conditions described in the informed consent form (ICF) 3. eligible to sign the ICF 4. established diagnosis of PAD confirmed by a physician 5. able to comply with the study requirements * Cases, Aim 2 1\) completed Aim 1 * Controls 1) asymptomatic, with no history or diagnosis of peripheral artery disease Exclusion Criteria: * Cases, Aim 1 1. Ankle-Brachial Index \>0.9 or \<0.4 2. isolated disease in aorta/iliac vessels 3. unstable angina or myocardial infarction in past 12 months 4. orthopedic or other physical limitations which would prevent data collection 5. contraindications to MRI, including presence of a Pacemaker, presence of bone growth/ bone fusion stimulators, presence of tissue expander, presence of cochlear implants, unable to ambulate for 10 feet, receiving continuous Oxygen therapy, pregnancy, permanent Jewelry (screened using MRI safety screening form and verbal screening by MRI operator * Cases, Aim 2 1. unstable angina or myocardial infarction in past 12 months 2. orthopedic or other physical limitations which would prevent data collection 3. contraindications to MRI, including presence of a pacemaker, presence of bone growth/ bone fusion stimulators, presence of tissue expander, presence of cochlear implants, unable to ambulate for 10 feet, receiving continuous Oxygen therapy, pregnancy, permanent Jewelry (screened using MRI safety screening form and verbal screening by MRI operator). * Controls 1) history of peripheral artery disease 2) overt cardiovascular disease (e.g. heart failure) 3) known pulmonary disease (excluding mild asthma) 4) current tobacco use 5) orthopedic or other physical limitations which would prevent data collection, 6) BP \>150/90 mmHg at screening 7) contraindications to MRI, including presence of a pacemaker, presence of bone growth/ bone fusion stimulators, presence of tissue expander, presence of cochlear implants, unable to ambulate for 10 feet, receiving continuous Oxygen therapy, pregnancy, permanent Jewelry (screened using MRI safety screening form and verbal screening by MRI operator).

Locations (2)

University of Texas at Arlington

Arlington, Texas, United States

University of Texas Arlington