Clinical trials: Nitrate / Nitrite
Blood Pressure
Dietary Nitrate Intake in Vegetarians and Omnivores
Vegetarian diets are commonly associated with lower blood pressure levels. This has been related to greater consumption of inorganic nitrate, since vegetables are the main source of this anion.
- Trial name
- NO3 (NCT03871777)
- Testing
- Chlorhexidine mouthwash
- Where
- United Kingdom
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- University of Plymouth
Dietary Supplements: Beetroot Juice Acute Supplementation, Dietary Supplement: Placebo Acute Supplementation
Acute Effects of Beetroot Juice Ingestion on Cognitive Function and Neuromuscular Performance in Elite Female Taekwondo Athletes
Beetroot juice is a good source of nitrate (NO3-), which is a precursor of nitric oxide (NO) through the NO3- to nitrite (NO2-) to NO pathway (Lundberg et al., 2008).
- Trial name
- BEET_TAEKWONDO (NCT06675305)
- Testing
- Beetroot juice (James White, UK)
- Where
- Spain
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Universidad Pontificia Comillas
Blood Pressure, Sports Physical Therapy
Oral Nitrite Synthesis and Post-exercise Hypotension
Exercise is probably the most effective approach to reduce blood pressure. In fact, a single bout of exercise induces a physiological response known as Post-Exercise Hypotension (PEH) where a prolonged decrease in resting blood…
- Trial name
- NCT03904394
- Testing
- Exercise
- Where
- United Kingdom
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- University of Plymouth
Aging
Exploring the Effect of Inorganic Nitrates on the Human Microvascular Physiology - a Pilot Study.
We conducted a randomised, placebo-controlled, double blind, cross-over, trial to examine the short-term effect of concentrated beetroot juice on vascular outcomes in a young (18-35 years) and older group (55-75 years).
- Trial name
- ENIH-MPS (NCT04276766)
- Testing
- Crossover intervention
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Sheffield Hallam University
Hypertension
The Acute Effect of Beetroot Juice in Normal and Hypertensive Subjects
Inorganic nitrate can be converted to nitrite and thence nitric oxide in humans. Nitric oxide is normally produced by the inner lining of blood vessels and helps keep blood vessels open and therefore blood pressure lower.
- Trial name
- NCT01236872
- Testing
- Beetroot juice, Water
- Where
- United Kingdom
- Volunteers
- 15 people
- Sponsor
- Queen Mary University of London
Cardiomyopathy, Hypertrophic
Nitrite in Hypertrophic Cardiomyopathy (HCM) Study
Inorganic nitrate, which is found at high levels in green leafy vegetables, is reduced to nitrite by bacteria in the mouth, swallowed, and absorbed in the stomach into the blood.
- Trial name
- NCT03251287
- Testing
- Sodium Nitrate, Phosphorous Magnetic Resonance Spectroscopy, Exercise Stress Transthoracic Echocardiogram
- Where
- United Kingdom
- Volunteers
- 18 people
- Sponsor
- University of East Anglia
Blood Pressure Regulation
The Effects of Nitrate-Rich Mouthwash on Vascular Tone
High blood pressure (hypertension) is a major risk factor for cardiovascular disease. One important contributing factor to high blood pressure is reduced availability of nitric oxide (NO).
- Trial name
- NITRATONE (NCT07602764)
- Testing
- Nitrate-rich mouth rinse, Nitrate-rich drink
- Where
- Sweden
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Göteborg University
Oral Dysbiosis
Effects of a Composition on the Oral Microbiome, pH, Nitrite/Nitrate Ratio, Elastases and Inflammation in Oral Dysbiosis
Dysbiosis is a condition in which the normal function of an ecological net is altered. In dysbiosis a state of inflammation, a loss of hydration, a change in pH, a loss of the barrier function are all allies of key pathogens that…
- Trial name
- NCT05463484
- Testing
- Test composition Saliactive® (olive product, betaine and xylitol), Control
- Where
- Spain
- Volunteers
- 100 people
- Sponsor
- Mucosa Innovations, S.L.
Cardiovascular Diseases, Endothelial Dysfunction
Investigation of the Effects of Dietary Nitrate and Sex on COVID-19 Vaccine Induced Vascular Dysfunction in Healthy Men and Women (DiNOVasc-COVID-19)
Inorganic nitrate can protect blood vessels from the damage that occurs during cardiovascular disease. Early experimental work suggests that nitrate-induced improvements in vascular function relate to the suppression of…
- Trial name
- NCT04889274
- Testing
- COVID-19 vaccine, Concentrate beetroot Juice, Nitrate-deplete beetroot juice
- Where
- United Kingdom
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Queen Mary University of London
Healthy
Determination of Variances in Exhaled Nitric Oxide Output in Normal Healthy Male Volunteers Consuming High and Low Nitrate/Nitrite Diets
This study will determine whether and how nitrites and nitrates in the diet affect the level of nitric oxide gas that is breathed out in air.
- Trial name
- NCT00027157
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Cardiovascular Diseases in Old Age
Efficacy Long-term Dietary Nitrate Consumption to Plasma Nitrite Conversion
The objective of this study was to determine the chronic effects of beetroot juice supplementation on the acute (90-minute post nitrate consumption) efficacy of converting dietary nitrate to plasma nitrate and plasma nitrite in…
- Trial name
- NCT05380167
- Testing
- BRJ Nitrate
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Wake Forest University
Type 2 Diabetes, Ageing
Effects of Nitrate on Liver Perfusion and Sugar Control
Rationale: Mediterranean style diets and diets rich in green leafy vegetables protect against the risk of developing type 2 diabetes and a wide range of cardiovascular disease. These diets are rich in nitrate.
- Trial name
- DiMPLe (NCT02195856)
- Testing
- Beetroot juice
- Where
- 2 sites in United Kingdom
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- University of Exeter
Nitric Oxide, Insulin Sensitivity
Nutritional Supplementation and Insulin Sensitivity
Type 2 diabetes mellitus (T2DM) is a progressive disease and early intervention and prevention strategies are therefore very important. An important early hallmark in the development of T2DM is insulin resistance.
- Conditions
- Nitric Oxide, Insulin Sensitivity, Vascular Function, L-arginine
- Trial name
- NCT04239482
- Testing
- L-arginine + Nitrate / Nitrite
- Where
- Netherlands
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Diabetes, Hypertension
The Effect of Dietary Nitrate on Blood Pressure, Insulin Sensitivity, and Vascular Function in Type 2 Diabetes
Dietary nitrate supplementation has previously been shown to reduce blood pressure in healthy volunteers. The investigators wished to see whether this would be replicated in subjects with type 2 diabetes and age matched healthy…
- Trial name
- NCT04076007
- Testing
- Beetroot juice, Nitrate depleted beetroot juice
- Where
- United Kingdom
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Exeter
Contrast-induced Nephropathy, Acute Kidney Injury
The Use of Inorganic Nitrate for the Prevention of Contrast-induced Nephropathy
Contrast-induced nephropathy (CIN), an acute kidney injury resulting from the administration of intravascular iodinated contrast media, is an important cause of morbidity/mortality following coronary angiographic procedures in…
- Conditions
- Contrast-induced Nephropathy, Acute Kidney Injury, Acute Coronary Syndrome
- Trial name
- NITRATE-CIN (NCT03627130)
- Testing
- Potassium Nitrate, Potassium Chloride
- Where
- United Kingdom
- Volunteers
- 640 people
- Sponsor
- Barts & The London NHS Trust
Gingivitis
Nitrate Consumption and Gingival Inflammation
The aim of this investigation is to evaluate the impact of the 14- day consumption of a nitrate-rich diet on the the extent of gingival inflammation in a cohort of periodontal aftercare patients.
- Trial name
- NITGIN14 (NCT05866341)
- Testing
- nitrate-rich lettuce juice, nitrate-depleted lettuce juice
- Volunteers
- 44 people
- Sponsor
- Wuerzburg University Hospital
Air Pollution
The Effect of Juice Types on the Responses to Air Pollution
The study hypothesis is that drinking different juices will affect the body's responses to air pollution. Subjects will be exposed to air pollution during a 2-hour car ride on the NJ (New Jersey) Turnpike.
- Trial name
- NCT02027415
- Testing
- Beet juice, Orange juice
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Rutgers, The State University of New Jersey
High Intensity Intermittent Sports Performance
Nitrate for High Intensity Intermittent Exercise
The objective of the current study is to assess the effect of 6-day dietary nitrate ingestion on high intensity intermittent sports performance in recreational soccer players.
- Trial name
- NITR-ITE (NCT02436629)
- Testing
- Nitrate-rich concentrated beetroot juice, Nitrate-depleted concentrated red beetroot juice
- Where
- Netherlands
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Hypertension
The Chronic Effects of Beetroot Juice in Hypertensive Subjects
We are interested in the effect of diet on blood pressure. Our previous research has shown that beetroot juice lowers blood pressure in healthy people.
- Trial name
- NCT01405898
- Testing
- beetroot juice, Nitrate-free beetroot juice
- Where
- United Kingdom
- Volunteers
- 68 people
- Sponsor
- Queen Mary University of London
Healthy
Blood Nitrate/Nitrite Concentrations Following Acute Ingestion of Resync in Men and Women
This study evaluates acute ingestion of the dietary supplement Resync on blood nitrate/nitrite concentrations in a sample of men and women.
- Trial name
- NCT04125940
- Testing
- Resync, Resync + Collagen
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Memphis