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Nitric Oxide clinical trials and research
As of November 12, 2026, Find a Trial lists 4 Nitric Oxide clinical trials that are recruiting, at sites in 4 countries (most in United States (3), United Kingdom (1), China (1)). By phase: Phase 2 (1), Phase 3 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 4Clinical trials
- 4Countries
Newest Nitric Oxide clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Adding nitrate to everyday oat-based foods to boost nitric oxide and support blood vessel health. | — | London | Recruiting | Sep 15, 2025 |
| Using Nitric Oxide to Improve Recovery in Heart Surgery | Phase 3 | Boston, Massachusetts and 2 other locations | Recruiting | Nov 25, 2024 |
| Dose effects of CitraPeak (glucosyl‑hesperidin) on exercise, blood flow, stress, and thinking | — | Saint Charles, Missouri | Recruiting | Nov 4, 2024 |
| Exercise and Nitric Oxide Effects in Peripheral Artery Disease | Phase 2 | Chicago, Illinois and 1 other locations | Recruiting | Oct 26, 2024 |
All recruiting trials (4)
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Adding nitrate to everyday oat-based foods to boost nitric oxide and support blood vessel health.
We will test whether adding inorganic nitrate to oat-based foods boosts nitric oxide levels and lowers blood pressure in healthy adults aged 18–60.
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Using Nitric Oxide to Improve Recovery in Heart Surgery
This study tests if inhaling nitric oxide during heart surgery can help adults recover better and avoid complications like kidney problems and breathing issues.
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Dose effects of CitraPeak (glucosyl‑hesperidin) on exercise, blood flow, stress, and thinking
This test tries daily CitraPeak (glucosyl‑hesperidin) at two doses to see if it helps healthy, recreationally active adults (18–50) improve exercise performance, recovery, blood flow, mood, and cognition.
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Exercise and Nitric Oxide Effects in Peripheral Artery Disease
This study is testing if a 12-week exercise program can boost nitric oxide levels in people with Peripheral Artery Disease and whether drinking beetroot juice can help those who don't see improvements from exercise.
Related topics
Quick answers
How many Nitric Oxide clinical trials are recruiting right now?
4, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 4 countries. The most sites are in United States (3 trials), United Kingdom (1 trial), China (1 trial), Russia (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 2: 1, Phase 3: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.