Response to Exercise and Nitric Oxide in PAD

This study is looking at how exercise and beetroot juice affect people with Peripheral Artery Disease (PAD), a condition where narrowed arteries reduce blood flow to your limbs. We want to see if a 12-week supervised exercise program increases a substance called nitrite in your body. We're also studying if adding nitrate-rich beetroot juice to exercise helps those who don't respond well to exercise alone. You might be able to join if you are 50 or older and have PAD, confirmed by specific tests like an ABI (Ankle-Brachial Index) measurement. The study aims to enroll 200 participants.

Study design
This is a randomized trial involving 200 participants. You would be assigned to one of several groups: supervised treadmill exercise, educational sessions, beetroot juice plus exercise, or placebo plus exercise.
What's involved
You would participate in either supervised treadmill exercise three times a week for 12 weeks, or attend weekly educational sessions for 12 weeks. If in a combination group, you would drink beetroot juice or a placebo while exercising.
Compensation
Not stated in the trial record.
Follow-up
Your nitrite levels will be measured at 12 weeks. Your walking ability (Six-minute walk) will be measured at 12 weeks and again at 24 weeks.

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

NCT06657976

Response to Exercise and Nitric Oxide in PAD

Recruiting
PHASE2Ages 50+InterventionalTreatment
Northwestern University
~200 participants
Updated 2026-07-27 on ClinicalTrials.gov
What's tested:Supervised Treadmill ExerciseAttention ControlNitrate-Rich Beetroot Juice + supervised exercise therapyPlacebo + supervised exercise therapy

At a glance

Recruiting sites
1 of 2 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Delta nitrite
Measured over Baseline to 12-week follow-up
+1 more outcome measured
Peripheral Artery Disease
Exercise
Intermittent Claudication
Nitric Oxide
2 sites across 1 states
Illinois2

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  • Delta nitriteBaseline to 12-week follow-up

    Change in plasma nitrite from the beginning to the end of a maximal exercise stress test

  • Six-minute walkFrom 12-weeks to 24-week follow-up

    Change in six-minute walk distance