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Showing 1–16 of 16 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: 70 mL placebo drink Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Energy Drink Brands on Heart Rhythm

NCT03196908
View directory record Official record
Conditions
Electrical Alternation of Heart, Blood Pressure
Interventions
Energy Drink Brand 1, Energy Drink Brand 2, Placebo
Dietary Supplement · Other
Lead sponsor
University of the Pacific
Other
Eligibility
18 Years to 40 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Stockton, California
Source: ClinicalTrials.gov public record
Updated Dec 23, 2018 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Postmenopausal Women and Their Endothelium

NCT03644472
View directory record Official record
Conditions
Postmenopausal Women
Interventions
nitrate rich beetroot juice, nitrate depleted beetroot juice
Drug
Lead sponsor
Penn State University
Other
Eligibility
Up to 70 Years · Female only
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 26, 2023 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Not applicable Interventional

Strength Testing After Nitrate Delivery (STAND) in ICU Patients

NCT02293616
View directory record Official record
Conditions
Respiratory Failure
Interventions
Nitrate Rich Beetroot Juice, Placebo
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
56 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 17, 2018 · Synced Sep 12, 2026, 4:29 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Effects of Red Beetroot Juice on High-Fat Meal-Induced Endothelial Dysfunction and Cardiometabolic Disturbances

NCT02949115
View directory record Official record
Conditions
Overweight, Obesity, Aging, Menopause
Interventions
70 mL red beetroot juice, 70 mL red beetroot juice without nitrate, 70 mL placebo drink plus potassium nitrate, 70 mL placebo drink
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
40 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 12, 2018 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Phase 1 Interventional

Clinical Trial to Evaluate the Safety of PT150 (Formerly ORG34517) When it is Taken Concurrently With Alcohol

NCT03548714
View directory record Official record
Conditions
Alcohol Dependence, Alcohol Interaction
Interventions
PT150, Beverage
Drug · Other
Lead sponsor
Pop Test Oncology LLC
Industry
Eligibility
21 Years to 64 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 21, 2019 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Phase 2 Interventional Results available

Dietary Nitrate and Exercise to Augment Exercise Training Benefits in Subjects With DM+PAD

NCT01785524
View directory record Official record
Conditions
Peripheral Arterial Disease, Type II Diabetes Mellitus
Interventions
Beetroot Juice (Beet-It Stamina Shot) and Exercise Training, Placebo Comparator Beverage (Beet-It Stamina Shot) & Exercise Training
Drug · Other
Lead sponsor
Duke University
Other
Eligibility
50 Years to 80 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 26, 2017 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Early Menopause on Sympathetic Activation and Cardiovascular Function in Older Women

NCT03692572
View directory record Official record
Conditions
Early Menopause, Menopause
Interventions
Nitrate supplementation, placebo
Dietary Supplement
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
60 Years to 70 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 11, 2024 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Early Phase 1 Interventional

Nitrate Supplementation and Cerebrovascular and Cognitive Function in Metabolic Syndrome

NCT05532423
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Beetroot Juice - Active, beetroot juice - Placebo
Drug
Lead sponsor
Penn State University
Other
Eligibility
55 Years to 75 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 5, 2025 · Synced Sep 12, 2026, 4:29 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Acute Effects of Beet Juice Consumption on Exercise Capacity in Heart Failure

NCT01946542
View directory record Official record
Conditions
Heart Failure
Interventions
beet juice concentrate, placebo
Drug · Other
Lead sponsor
Jason Allen, Ph.D.
Other
Eligibility
55 Years to 90 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 13, 2015 · Synced Sep 12, 2026, 4:29 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Adjuvant Nitrate to Boost Exercise-induced Health Benefits in Older Adults

NCT07572266
View directory record Official record
Conditions
Aging, Aging Well, Healthy Aging
Interventions
Nitrate enriched beetroot juice, Nitrate depleted beetroot juice, 12 week of combined exercise training
Dietary Supplement · Other
Lead sponsor
Florida Institute for Human and Machine Cognition
Other
Eligibility
60 Years and older
Enrollment
226 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2031
U.S. locations
1
States / cities
Pensacola, Florida
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Phase 2 Interventional Results available

Nitrites, Exercise, and Peripheral Arterial Disease

NCT01684930
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Beetroot Juice (Beet-It Stamina Shot) & Supervised Exercise Training, Placebo Comparator Beverage (Beet-It Stamina Shot) & Exercise Training
Drug · Other
Lead sponsor
Duke University
Other
Eligibility
40 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 28, 2017 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Phase 2 Interventional Results available

Effect of Beetroot Juice on Coronary Blood Flow and Walking Performance in PAD

NCT02553733
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Beetroot juice, Beetroot juice placebo
Drug
Lead sponsor
David N. Proctor, PhD
Other
Eligibility
21 Years to 85 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Beetroot Juice on Blood Pressure Regulation in Post Menopausal Women

NCT03380000
View directory record Official record
Conditions
Postmenopausal Women
Interventions
Beetroot juice, Beetroot juice placebo
Drug
Lead sponsor
Penn State University
Other
Eligibility
55 Years to 80 Years · Female only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 11, 2022 · Synced Sep 12, 2026, 4:29 PM EDT
Recruiting Not applicable Interventional

BEETroot Juice to Reverse Functional Impairment in PAD

NCT05624125
View directory record Official record
Conditions
Peripheral Artery Disease
Interventions
Beetroot juice, Placebo
Other
Lead sponsor
Northwestern University
Other
Eligibility
50 Years and older
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
4
States / cities
Chicago, Illinois • Minneapolis, Minnesota • Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy Long-term Dietary Nitrate Consumption to Plasma Nitrite Conversion

NCT05380167
View directory record Official record
Conditions
Cardiovascular Diseases in Old Age
Interventions
BRJ Nitrate, BRJ Placebo
Dietary Supplement
Lead sponsor
Wake Forest University
Other
Eligibility
40 Years to 80 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated May 24, 2022 · Synced Sep 12, 2026, 4:29 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability and Pharmacokinetics of CDD-2101 in Health Volunteers

NCT06570668
View directory record Official record
Conditions
Constipation - Functional
Interventions
CDD-2101
Drug
Lead sponsor
Centre for Chinese Herbal Medicine Drug Development Limited
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 25, 2024 · Synced Sep 12, 2026, 4:29 PM EDT