This study is looking at how red light (670 nm energy) affects blood flow in people with Peripheral Artery Disease (PAD). PAD is a condition where narrowed arteries reduce blood flow to your limbs, often causing leg pain when walking (claudication). Researchers will place a light-emitting device over your calf muscle for 5 minutes. To measure blood flow, you will receive an infusion of octafluoropropane, which helps show blood flow on an ultrasound. The main goal is to see how your blood flow changes before, during, and right after the light treatment. You can join if you are 18 to 85 years old and have been diagnosed with PAD, which is determined by an Ankle Brachial Index (ABI) test. The study is currently unclear on its recruitment status.

Study design

This is an interventional study with a planned enrollment of 40 participants. It is not specified if it is randomized, blinded, or its phase.

What's involved

You will have one study visit where you receive a 5-minute red light treatment, an octafluoropropane infusion for blood flow measurement, and two blood samples will be collected. You may be asked to return for a second visit if the initial data is uninterpretable.

Compensation

Not stated in the trial record.

Follow-up

Blood flow changes will be measured at baseline, during the 5 minutes of light treatment, and up to 1 minute after the light is turned off.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.