| Recruiting | Evaluation of Adding Nitrate Into Foods for Regulating Nitric Oxide Bioavailability in Healthy Individuals NCT07172425 | Queen Mary University of London | N/A |
| Not Yet Recruiting | Inhaled Nitric Oxide in Severe Obesity NCT06675435 | Massachusetts General Hospital | N/A |
| Recruiting | Nitric Oxide for Reduced Intensive Support in Cardiac Surgery With Cardiopulmonary Bypass NCT06702553 | Xijing Hospital | Phase 3 |
| Recruiting | Dose-Response Impact of Glucosyl-Hesperidin (CitraPeak) on Exercise Performance, Blood Flow, Stress, Cognition NCT06672952 | Lindenwood University | N/A |
| Recruiting | Response to Exercise and Nitric Oxide in PAD NCT06657976 | Northwestern University | Phase 2 |
| Completed | Nitrate Mouth Rinse and the Oral Microbiome NCT06588049 | Dalhousie University | N/A |
| Active Not Recruiting | Mechanism of Nitric Oxide on Ventilator-induced Diaphragm Dysfunction with Extracorporeal Membrane Lung Assist NCT06660784 | Zhongnan Hospital | — |
| Completed | Inhaled NO in Surgical Patients With Recent COVID-19 Infection NCT05721144 | Xijing Hospital | Phase 2 |
| Unknown | Potential for Inhaled Nitric Oxide and Ventilation-Perfusion Mismatch by Electrical Impedance Tomography in th NCT04776408 | Far Eastern Memorial Hospital | N/A |
| Completed | Impact of Beetroot Juice Ingestion on Female Rugby Performance NCT05209126 | Universidad Francisco de Vitoria | N/A |
| Unknown | Effects of Nitrate-rich Beetroot Juice in Pregnant Women With High Blood Pressure NCT05241327 | Karolinska Institutet | N/A |
| Completed | Inhaled NO for the Treatment of Viral Pneumonia in Adults NCT04606407 | Beyond Air Inc. | N/A |
| Terminated | Nutritional Supplementation and Insulin Sensitivity NCT04239482 | Maastricht University Medical Center | N/A |
| Terminated | Inhaled NO for the Treatment of COVID-19 Caused by SARS-CoV-2 (US Trial) NCT04397692 | Beyond Air Inc. | N/A |
| Unknown | Clinical Characteristics and Treatment of Chest Tightness Variant Asthma NCT04322422 | Second Affiliated Hospital, School of Medicine, Zhejiang University | N/A |
| Unknown | Nitric Oxide in Venoarterial Extracorporeal Membrane Oxygenation (VA ECMO) NCT04224103 | Filio Billia | — |
| Completed | Nutritional Supplements and Nitric Oxide Bioactivity NCT03625596 | Maastricht University Medical Center | N/A |
| Completed | Evidence of Spreading Vasodilation in Human Gingiva NCT03605095 | Semmelweis University | N/A |
| Completed | Influence of Dietary Nitrate on Skin Inflammation NCT03183830 | Queen Mary University of London | Phase 1 |
| Unknown | Salvage Treatment of Inhaled Nitric Oxide in Patients With Refractory Hypoxemia After Aortic Surgery NCT03009643 | Shanghai Zhongshan Hospital | N/A |
| Completed | Nitric Oxide-mediated Cardioprotection During Cardiac Surgery With Cardiopulmonary Bypass NCT03500783 | Tomsk National Research Medical Center of the Russian Academy of Sciences | Phase 1 / Phase 2 |
| Completed | Clinical Characteristics, Treatment and Prognosis of Chest Tightness Variant Asthma NCT03237221 | Second Affiliated Hospital, School of Medicine, Zhejiang University | — |
| Unknown | L-arginine and Brown Adipose Tissue NCT02291458 | Maastricht University Medical Center | Phase 3 |
| Completed | Vascular Effects of Triglyceride-rich Lipoproteins NCT01618071 | King's College London | N/A |
| Completed | Pilot Study About the Harmful Effects of Blood Storage on Overweight People and the Role of iNO in This Settin NCT01529502 | Massachusetts General Hospital | Phase 2 |
| Withdrawn | Bone Marrow Aspiration Pain Study NCT01524523 | National Institutes of Health Clinical Center (CC) | — |
| Completed | Overcoming Inactivity in Older Adults: Impact on Vascular Homeostasis NCT01212978 | Medical College of Wisconsin | N/A |
| Withdrawn | Exhaled Nitric Oxide Levels in Infants and Young Children Infected With RSV or Other Viral Infections NCT01098227 | NYU Langone Health | — |
| Completed | Evaluation Effects of Nasal Nitric Oxide Measurements Are Associated With Atopy Status in Chronic Nasal Inflam NCT01295866 | Beijing Tongren Hospital | — |
| Completed | Effects of Nitrite on Blood Vessel Dilation in Normal Volunteers NCT00048477 | National Heart, Lung, and Blood Institute (NHLBI) | Phase 2 |