Clinical trials: Nitrate / Nitrite
Coronary Arteriosclerosis
Dietary Nitrate and Nitrite to Increase Nitric Oxide in Patients With Coronary Artery Disease
This study will determine whether dietary nitrates and nitrites can produce nitric oxide in the body and dilate blood vessels in patients with coronary artery disease.
- Trial name
- NCT00069654
- Testing
- Forearm blood flow study, Brachial artery reactivity study, Treadmill exercise test
- Where
- United States
- Volunteers
- 42 people
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Resting Metabolic Rate
Modulation of Metabolic Rate by Inorganic Nitrate
The purpose of this study is to determine the effects of sodium nitrate on resting metabolic rate, glucose uptake and formation of reactive oxygen species in humans.
- Trial name
- NCT02022176
- Testing
- Glucose Uptake, Resting metabolic rate, Nitrite infusion
- Where
- Sweden
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Healthy, Menopause
Nitrate, Exercise and Vascular Function in Midlife Women
The purpose of this clinical study in women after menopause is to investigate whether the daily intake of nitrate from beetroot juice over 12 weeks enhances the positive effect of exercise training on vascular function, blood…
- Conditions
- Healthy, Menopause, Hypertension, Inflammation
- Trial name
- Women's-Beet (NCT06527248)
- Testing
- Nitrate group
- Where
- Austria
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- University of Vienna
Adult
Hydroponic vs Conventional Spinach Smoothies: Effects on Salivary Nitrate Bioavailability and Blood Pressure
The goal of this clinical trial is to determine whether hydroponic spinach (HS) versus conventional spinach (CS) smoothies produce differential post-consumption effects on salivary nitrate availability and blood pressure in…
- Trial name
- SPIN-BP-NO (NCT07665944)
- Testing
- Hydroponic spinach smoothie, Conventional spinach smoothie
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Plymouth
Asthma
The Effects of NOx and Conjugated Linoleic Acid on Asthmatics
This study will examine the hypothesis that in obese asthmatics; treatment with NOx + CLA is well tolerated, safe and will increase eNO while reducing airway oxidative stress.
- Trial name
- NICLA (NCT02433977)
- Testing
- Conjugated Linolenic Acid, Sodium Nitrite, Sodium Nitrate
- Where
- United States
- Volunteers
- 6 people
- Sponsor
- Gladwin, Mark, MD
High Blood Pressure, Flow Mediated Dilation
Effect of Nitrate-rich Fruit and Vegetable Supplement on Blood Pressure
It is hypothesized that the daily supplementation of a nitrate-rich, two-ounce fruit and vegetable energy supplement (Isagenix International LLC) by healthy young adults with a would increase circulating nitrates and improve…
- Trial name
- NCT03486145
- Testing
- fruit and vegetable juice supplement
- Where
- United States
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- Arizona State University
Hypertension, Cardiovascular Diseases
Probiotic Effect on Dietary Nitrate to Plasma Nitrite Production ( OPEDNPN )
Nitric Oxide (NO) is an important molecule that is produced naturally in the body and that helps maintain healthy blood flow. Low availability of NO contributes to many diseases while administration of NO is therapeutic.
- Conditions
- Hypertension, Cardiovascular Diseases, Diabetes
- Trial name
- OPEDNPN (NCT06375694)
- Testing
- Herbiotics Oral + Ent Probiotic
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Wake Forest University
Focus of Study of Healthy Adults
Oral Nitrite and Nitrate in Healthy Normal Volunteer Adults
This proposal hypothesizes that oral supplementation with sodium nitrite or nitrate will result in in vivo conversion of nitrate to nitrite and nitrite to nitric oxide with limited toxicity in the doses proposed in healthy adult…
- Trial name
- NCT01681836
- Testing
- 15Nitrogen(15N)-labeled sodium nitrite, 15Nitrogen(15N)-labeled sodium nitrate
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Gladwin, Mark, MD
Chronic Obstructive Pulmonary Disease Moderate
Beetroot Juice - Effects on Performance in Chronic Obstructive Pulmonary Disease Patients
The purpose is to evaluate exercise performance in patients with Chronic Obstructive Pulmonary Disease (COPD) after supplementing with higher doses of dietary NO3-, compared to previous studies, as beetroot juice for seven days.
- Trial name
- COPD (NCT03020862)
- Testing
- Dietary beetroot juice
- Where
- Denmark
- Volunteers
- 15 people
- Sponsor
- University of Aarhus
Blood Plasma Nitrite
Nitrate and Power Output After Two Beetroot Juice Drinks
The main aim of this study is to determine and compare the optimal time to achieve peak concentration of blood plasma nitrite after ingestion of beetroot juice (BR) and isotonic beetroot juice (ISO-CB), respectively.
- Trial name
- NCT05452421
- Testing
- Isotonic carbohydrate beetroot juice drink, Beetroot juice drink
- Where
- Singapore
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Nanyang Technological University
Nitric Oxide, Vascular Function
Nutritional Supplements and Nitric Oxide Bioactivity
Obese people have a disturbed postprandial metabolism and thereby a decreased postprandial vascular function. Nitric oxide plays an important role in the postprandial vascular function.
- Conditions
- Nitric Oxide, Vascular Function, L-Arginine, Nitrate / Nitrite
- Trial name
- NCT03625596
- Testing
- L-Arginine, Nitrate / Nitrite
- Where
- Netherlands
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Aging
Nitrate and Exercise Performance in Middle to Older Aged Adults
Research with young healthy individuals has shown that beetroot juice beverages that contain large amounts of nitrate can improve exercise performance.
- Trial name
- NCT03371966
- Testing
- High Nitrate Beetroot Juice, Low Nitrate Beetroot Juice
- Where
- United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Wake Forest University
Long COVID, Cardiorespiratory Fitness
Nitrite Supplementation in Long COVID Patients
Potential benefits of a nitrate-rich juice supplement to improve skeletal muscle function and associated physical capacity will be studied in patients with Long COVID.
- Trial name
- NCT05618574
- Testing
- 140 ml per day of Beet-It nitrate beverage (James White Drinks Ltd., Ipswich, UK)
- Where
- United States
- Volunteers
- 17 people
- Sponsor
- VA Office of Research and Development
Acute Nitrate Ingestion on Athletic Performance
Acute Nitrate Supplementation in Cyclists
Six days of dietary nitrate (NO3-) supplementation in the form of beetroot juice (~0.5 L•d-1; 5.1-11.2 mmol NO3- •d-1) has been purported to reduce pulmonary oxygen uptake (VO2) during submaximal exercise and increase tolerance…
- Trial name
- NCT01384968
- Testing
- beetroot juice
- Where
- Netherlands
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Primary Hypertension
Dietary Nitrate and the Oral Microbiome in Children With Primary Hypertension
Children and adolescents with primary hypertension (high blood pressure without an underlying secondary cause) are at increased risk of cardiovascular disease in adulthood.
- Trial name
- NCT07236125
- Testing
- No active intervention
- Where
- Turkey (Türkiye)
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Yelda Kasımoğlu
Time-trial Performance, Submaximal Exercise Performance
Nitrate Supplementation; Duration
The main aim of the current study will be to find the optimal duration of supplementation to enhance sports performance.
- Conditions
- Time-trial Performance, Submaximal Exercise Performance, Nitrite, Nitrate
- Trial name
- NO-how (NCT02115893)
- Testing
- Sodium Nitrate, Sodium Chloride
- Where
- 2 sites in Netherlands
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Hypertension, Inflammation
Dietary Nitrate, Vascular Function and Inflammation
The risk for cardiovascular diseases (CVD) increases with advancing age. Developing effective lifestyle-based strategies to promote, preserve or restore cardiovascular health with aging is a high priority.
- Trial name
- NCT04584372
- Testing
- High-nitrate intervention, Low-nitrate intervention
- Where
- 2 sites in Austria
- Volunteers
- 20 people
- Sponsor
- University of Vienna
Healthy, Gastrointestinal Cancer
Dietary Nitrate and Nitrite Intake and Phosphate Biomarkers and Risk of Chronic Diseases
Nitrate, nitrite, and phosphate (NO3, NO2, P) are at all age stages ubiquitous in our everyday foods, including naturally occurring and as food additives, and in our drinking water.
- Conditions
- Healthy, Gastrointestinal Cancer, Cardiovascular Diseases, Chronic Obstructive Airway Disease
- Trial name
- NCT07746310
- Where
- Sweden
- Volunteers
- 86,000 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet