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ClinicalTrials.gov public records Last synced Oct 9, 2026, 2:18 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–38 of 38 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: 1000 mg Vitamin C Clear all

Conditions: Blood Pressure, Hypertension
Interventions: Dextrose 20 % in 500 ML Injection, Intralipid, Saline, Ascorbic acid; Drug
Lead sponsor: University of Kansas Medical Center; Other
Eligibility: 18 Years to 79 Years
Enrollment: 46 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022 – 2027
U.S. locations: 1
States / cities: Kansas City, Kansas

Conditions: Preeclampsia
Interventions: Dietary Supplement/Vitamins, Placebo for Vitamin C and Vitamin E; Drug
Lead sponsor: The George Washington University Biostatistics Center; Other
Eligibility: Female only
Enrollment: 10,154 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2003 – 2009
U.S. locations: 16
States / cities: Birmingham, Alabama • Chicago, Illinois • Detroit, Michigan + 13 more

Conditions: Acute Myelogenous Leukemia
Interventions: Arsenic Trioxide (ATO), Ascorbic Acid; Drug
Lead sponsor: University of Southern California; Other
Eligibility: 18 Years and older
Enrollment: 11 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2002 – 2011
U.S. locations: 1
States / cities: Los Angeles, California

Conditions: Cardiovascular Disease
Interventions: Vitamin C, Vitamin E, Placebo; Dietary Supplement
Lead sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK); NIH
Eligibility: 18 Years and older
Enrollment: 396 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2004 – 2008
U.S. locations: 1
States / cities: Berkeley, California

Conditions: C-reactive Protein, Inflammation, Obesity, Oxidative Stress
Interventions: Vitamin C (ascorbic acid), Placebo tablet; Dietary Supplement
Lead sponsor: University of California, Berkeley; Other
Eligibility: 18 Years and older
Enrollment: 512 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2012
U.S. locations: 1
States / cities: Oakland, California

Conditions: Cardiovascular Disease
Interventions: Antioxidant cocktail, Biopsy, Placebo, NMD; 0.4mg sub-lingual nitroglycerin spray; Dietary Supplement · Other · Drug
Lead sponsor: Augusta University; Other
Eligibility: 18 Years to 40 Years
Enrollment: 74 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2014 – 2027
U.S. locations: 1
States / cities: Augusta, Georgia

Conditions: Chronic Obstructive Pulmonary Disease
Interventions: Quercetin, Placebo - sugar chew; Drug · Other
Lead sponsor: University of Michigan; Other
Eligibility: 40 Years to 80 Years
Enrollment: 9 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2015
U.S. locations: 1
States / cities: Ann Arbor, Michigan

Conditions: Pancreatic Neoplasms, Pancreatic Cancer
Interventions: Gemcitabine with escalating ascorbic acid; Drug
Lead sponsor: Joseph J. Cullen; Other
Eligibility: 18 Years and older
Enrollment: 1 participant
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2016
U.S. locations: 1
States / cities: Iowa City, Iowa

Conditions: Kidney Stones, Kidney Calculi, Urolithiasis, Urolithiasis, Calcium Oxalate, Nephrolithiasis, Nephrolithiasis, Calcium Oxalate, Oxalate Urolithiasis, Healthy, Healthy Volunteer
Interventions: Low-oxalate diet and glycolate dosing, Oral glycolate dosing, Oral 13C- ascorbic acid dosing; Dietary Supplement
Lead sponsor: University of Alabama at Birmingham; Other
Eligibility: 18 Years to 80 Years
Enrollment: 80 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2025 – 2031
U.S. locations: 2
States / cities: Birmingham, Alabama • Dallas, Texas

Conditions: Chronic Obstructive Pulmonary Disease (COPD)
Interventions: Tetrahydrobiopterin (BH4), Antioxidant Cocktail; Drug · Dietary Supplement
Lead sponsor: Augusta University; Other
Eligibility: 18 Years and older
Enrollment: 15 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2015 – 2018
U.S. locations: 1
States / cities: Augusta, Georgia

Conditions: Cerebrovascular Disorders
Interventions: Antioxidant Cocktail, Placebo; Dietary Supplement · Other
Lead sponsor: University of Wisconsin, Madison; Other
Eligibility: 18 Years to 40 Years
Enrollment: 24 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2024 – 2025
U.S. locations: 1
States / cities: Madison, Wisconsin

Conditions: Neoplasms, Metastatic Cancer, Advanced Cancer, Solid Tumor, Non Small Cell Lung Cancer Metastatic, Non Small Cell Lung Cancer Stage IIIB, Non Small Cell Lung Cancer
Interventions: Niraparib, TSR-042, Carboplatin-Paclitaxel, Bevacizumab, TSR-022, Carboplatin-Pemetrexed, Carboplatin-Nab-Paclitaxel; Drug
Lead sponsor: Tesaro, Inc.; Industry
Eligibility: 18 Years and older
Enrollment: 60 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2017 – 2024
U.S. locations: 8
States / cities: Scottsdale, Arizona • Encinitas, California • San Marcos, California + 5 more

Conditions: Open Posterior Thoracolumbar Spinal Fusion Procedure
Interventions: Tranexamic Acid Injectable Product (1000 mg intravenous bolus), Vitamin C 250 MG Oral Tablet, Tranexamic Acid 650Mg Tablet; Drug
Lead sponsor: Rush University Medical Center; Other
Eligibility: 18 Years and older
Enrollment: 604 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2027
U.S. locations: 1
States / cities: Chicago, Illinois

Conditions: Cystic Fibrosis
Interventions: BH4 5mg, BH4 20mg, Antioxidant Cocktail; Drug · Dietary Supplement
Lead sponsor: Augusta University; Other
Eligibility: 7 Years and older
Enrollment: 64 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2011 – 2016
U.S. locations: 1
States / cities: Augusta, Georgia

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Reversing Glucose and Lipid-mediated Vascular Dysfunction

Combined Antioxidant and Preeclampsia Prediction Studies (CAPPS)

Trial of Arsenic Trioxide With Ascorbic Acid in the Treatment of Adult Non-Acute Promyelocytic Leukemia (APL) Acute Myelogenous Leukemia

Gender, Obesity, C-Reactive Protein, and Oxidative Stress

Obesity, Inflammation and Oxidative Stress

Nitric Oxide Bioavailability and Early Life Stress (NO-Stress)

Beneficial Effects of Quercetin in Chronic Obstructive Pulmonary Disease (COPD)

Clinical Trial of High-dose Vitamin C for Advanced Pancreatic Cancer

Endogenous Oxalate Synthesis in Idiopathic Calcium Oxalate Kidney Stone Disease

Long Term Nitric Oxide Bioavailability on Vascular Health in Chronic Obstructive Pulmonary Disease

HYPEROXIA Responses and ROS

Study of Niraparib, TSR-022, Bevacizumab, and Platinum-Based Doublet Chemotherapy in Combination With TSR-042

Single Versus Multi-Dose Oral and Intravenous Tranexamic Acid Patients at High Risk for Blood Transfusion After Spine Surgery

Cystic Fibrosis and Endothelial Function: At Rest and During Exercise