Clinical Trials Logo

Clinical Trial Summary

Subjects with a known diagnosis of peripheral artery disease as measured by an abnormal ankle brachial index (<.9 or >1.1) will undergo a single 5 min exposure of 670 nm light, 1 cm above the gastrocnemius muscle. Blood flow will be measured by infusion of ultrasound contrast and subsequent acquisition of ultrasound images. 2 blood samples will be collected for measurement of nitric oxide metabolites.


Clinical Trial Description

The intent of this protocol is to measure blood flow in the gastrocnemius muscle in patients with documented peripheral artery disease before and after exposure to 670 nm light energy. The study consists of one visit. Blood flow measurement will be performed using contrast enhanced ultrasound, a method by which ultrasound contrast is continuously infused into the blood stream. Ultrasound records images in the area of interest and flow is related to the intensity of the contrast in each image. Blood will be drawn to measure nitric oxide metabolites. The study is designed to consist of one visit. However, if the protocol changes or the data quality initially collected is uninterpretable, subjects may be asked to return to allow for a standard methodology across all participants. In this case, the subjects who are asked to return will be subject to the same informed consent process a second time. The two visits will be at least one week apart to further reduce the already minimal risks of the study. This will also limit the number of study participants required to gather the necessary data to complete the study, thereby limiting the risks of the study to a smaller number of participants. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03203239
Study type Interventional
Source University of Alabama at Birmingham
Contact Nicole L Lohr, MD,PHD
Phone 414-996-3504
Email nlohr@uabmc.edu
Status Recruiting
Phase N/A
Start date January 17, 2018
Completion date May 1, 2025

See also
  Status Clinical Trial Phase
Not yet recruiting NCT05712395 - The Effects of a Novel, Non-ischemic and Pain-free Exercise Intervention in Peripheral Artery Disease N/A
Active, not recruiting NCT04534257 - Prospective Registry to Investigate the Safety and Efficacy of the Treatment With the Selution Sirolimus Drug Coated Balloon in TASC C and D Atheroma-occlusive Infra-Inguinal Disease in Patients With Chronic Limb Threatening Ischemia From Singapore N/A
Recruiting NCT04511234 - Sirolimus Coated Balloon Versus Standard Balloon for SFA and Popliteal Artery Disease N/A
Recruiting NCT03506633 - Impacts of Mitochondrial-targeted Antioxidant on Peripheral Artery Disease Patients N/A
Active, not recruiting NCT03506646 - Dietary Nitrate Supplementation and Thermoregulation N/A
Completed NCT02554266 - Registry Investigating the Clinical Use and Safety of the Lutonix Drug Coated Balloon for Treatment of BTK Arteries
Completed NCT03921905 - Peripheral Artery Disease in Patients With Stable Coronary Artery Disease in General Practice: Prevalence, Management and Clinical Outcomes.
Not yet recruiting NCT06369350 - Vitamin B6 on Exercise Pressor Reflex on Leg Ischemia-reperfusion Early Phase 1
Recruiting NCT04545268 - Prehabilitation for Cardiac Surgery in Patients With Reduced Exercise Tolerance N/A
Recruiting NCT02389023 - Comparison of Prevena Negative Pressure Incision Management System vs. Standard Dressing After Vascular Surgery N/A
Completed NCT02563535 - Evaluation of the Use of ACOTEC Drug-Eluting Balloon Litos ® in Below-The-Knee Arteries to Treat Critical Limb Ischemia Phase 4
Completed NCT02542267 - In-Stent Restenosis Post-Approval Study N/A
Completed NCT02539940 - Elutax-SV Drug-eluting Balloons for Below-the-knee Treatment
Completed NCT02522884 - Tack Optimized Balloon Angioplasty Study of the Tack Endovascular Systemâ„¢ in Femoropoliteal Arteries N/A
Completed NCT02145065 - First-in-man Evaluation of a Novel, Microcrystalline Paclitaxel Coated Balloon for Treatment of Femoropopliteal Artery Disease (PAX-r) N/A
Completed NCT02228564 - BARD® Study of LIFESTREAMâ„¢ Balloon Expandable Covered Stent Treating Iliac Arterial Occlusive Disease N/A
Completed NCT02262949 - A Prospective Study of the Bard® LifeStent® Solo Vascular Stent System N/A
Completed NCT01743872 - Optical Imaging Measurement of Intravascular Solution Efficacy Trial N/A
Recruiting NCT01424020 - Walking Estimated Limitation Calculated by History - Study 2 Phase 4
Active, not recruiting NCT01597453 - NOR-SYS: The Norwegian Stroke in the Young Study N/A