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The primary purpose of this study is to evaluate the safety and tolerability of vitamin C (ascorbic acid) given by injection into the vein.
The second and third purpose of conducting this study is to observe any evidence of tumor response to the vitamin C and compare the level of fatigue (weakness), pain control, ability to do things, and quality of life, before and after vitamin C is given.
Preclinical studies of pharmacologic doses of vitamin C (ascorbic acid, ascorbate) have shown significant anticancer effects in animal models and tissue culture investigations including cytotoxic effects in certain cancer cell lines at micromolar to millimolar concentrations.
Early clinical studies have shown that intravenous and oral doses of vitamin C may improve symptoms and prolong survival in terminal cancer patients. More recent double-blind placebo-controlled studies have shown that oral adminstration of vitamin C provides no benefit to cancer patients. Conversely, intravenous vitamin C administration raises plasma concentrations as high as 14 mM/L, and concentrations of 1-5 mM/L have been found to be selectively cytoxic to tumor cells in vitro.
The proposed Phase I trial with vitamin C should achieve millimolar concentrations of vitamin C that have been shown to kill tumor cells in vitro. The maximum tolerated dose (MTD), PK, possible drug accumulation with repeated dosing, quality of life, pain response, fatigue status, and hints of efficacy in patients with advanced cancer will be examined.
Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
CTCA @ Midwestern Regional Medical Center
Active, not recruiting
Cancer Treatment Centers of America
Published on BioPortfolio: 2014-08-27T03:39:53-0400
This randomized phase II trial studies how well docetaxel works when given with or without ascorbic acid in treating patients with prostate cancer that has spread to other places in the bo...
This randomized phase II trial studies how well ascorbic acid and combination chemotherapy work in treating patients with lymphoma that has come back or does not respond to therapy. Ascorb...
Preclinical study has shown that human colorectal cancer cells harboring KRAS or BRAF mutations are selectively killed by high levels of ascorbic acid (AA). High dose of AA impairs tumor g...
Nicotinamide nucleotide transhydrogenase (NNT) mutations cause glucocorticoid and mineralocorticoid deficiencies through decreased detoxification of reactive oxygen species (ROS) in adreno...
This randomized phase II trial studies how well pazopanib hydrochloride with or without ascorbic acid work in treating patients with kidney cancer that has spread to other places in the bo...
-Ascorbic acid (vitamin C, AA) exhibits anti-cancer effects with high-dose treatment through the generation of reactive oxygen species (ROS) and selective damage to cancer cells. The anti-cancer effec...
Ascorbic acid better known as vitamin C, is a reducing carbohydrate needed for a variety of functions in the human body. The most important characteristic of ascorbic acid is the ability to donate two...
l-Gulonate dehydrogenase (GuDH) is a crucial enzyme in the non-phosphorylated sugar metabolism or glucuronate-xylulose (GX) pathway. Some naturally occurring compounds inhibit GuDH. Ascorbic acid is o...
A simple strategy for modulating the fluorescence of MoS quantum dots (QDs) is described. The fluorescence of MoS QDs was firstly switched off by the addition of Cr(VI), and the quenched fluorescence ...
The objective of this study was to evaluate the genotoxic and mutagenic effects of the toxins present in Lachesis muta muta's venom on human peripheral blood leukocytes and the protective potential of...
A condition due to a dietary deficiency of ascorbic acid (vitamin C), characterized by malaise, lethargy, and weakness. As the disease progresses, joints, muscles, and subcutaneous tissues may become the sites of hemorrhage. Ascorbic acid deficiency frequently develops into SCURVY in young children fed unsupplemented cow's milk exclusively during their first year. It develops also commonly in chronic alcoholism. (Cecil Textbook of Medicine, 19th ed, p1177)
A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant.
Metabolite of ASCORBIC ACID and the oxidized form of the lactone DEHYDROASCORBIC ACID.
The reversibly oxidized form of ascorbic acid. It is the lactone of 2,3-DIKETOGULONIC ACID and has antiscorbutic activity in man on oral ingestion.
A strong dicarboxylic acid occurring in many plants and vegetables. It is produced in the body by metabolism of glyoxylic acid or ascorbic acid. It is not metabolized but excreted in the urine. It is used as an analytical reagent and general reducing agent.
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...
Pain is defined by the International Association for the Study of Pain as “an unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage”. Some illnesses can be excruci...