A Phase 2 Study Adding Ascorbate to Chemotherapy and Radiation Therapy for NSCLC

2016-09-19 20:08:23 | BioPortfolio


This clinical trial evaluates adding high-dose ascorbate (vitamin C) to a standard therapy for non-small cell lung cancer. The standard therapy is radiation therapy combined with carboplatin and paclitaxel (types of chemotherapy). All subjects will receive high-dose ascorbate in addition to the standard therapy.


For selected stages of non-small cell lung cancer (NSCLC), standard treatment involves radiation therapy and chemotherapy. The chemotherapy regimen typically used is paclitaxel and carboplatin. Both of these chemotherapeutic drugs are administered intravenously, using a vein in the arm. Radiation is administered using a machine external to the body (usually a linear accelerator). After combined therapy, NSCLC patients receive 2 extra cycles of chemotherapy, called "consolidation chemotherapy."

This study adds 75 grams of ascorbate (vitamin C, sometimes called pharmacological ascorbate because the dose is so high) at specific timepoints in the therapy. The ascorbate is administered intravenously - through a vein in your arm.

Participants will:

- receive 75 grams of intravenous ascorbate 3 times per calendar week while they are receiving radiation therapy. The IV will be running while the radiation therapy is administered. This portion of the study is about 6 to 7 weeks.

- receive 75 grams of intravenous ascorbate 2 times per calendar week while they are receiving consolidation chemotherapy. Each cycle of consolidation chemotherapy is 3 weeks, so this portion of the study is about 6 weeks.

- undergo imaging which is standard for their cancer and therapy. This can include CT scans, PET scans, and X-rays.

- provide blood samples to determine the biological effects, if any, the ascorbate has on the body during therapy

This active therapy portion lasts for about 15 to 17 weeks. After that is done, participants go back to standard follow-up for their cancer and any additional therapy their doctors believe they need.

However, it is very important the investigators remain in contact with participants; they will have life-long follow-up for this study.

Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Carcinoma, Non-Small-Cell Lung


Radiation Therapy, Paclitaxel, Carboplatin, Ascorbic Acid


Not yet recruiting


University of Iowa

Results (where available)

View Results


Published on BioPortfolio: 2016-09-19T20:08:23-0400

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Medical and Biotech [MESH] Definitions

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 form of highly malignant lung cancer that is composed of small ovoid cells (SMALL CELL CARCINOMA).

Preliminary cancer therapy (chemotherapy, radiation therapy, hormone/endocrine therapy, immunotherapy, hyperthermia, etc.) that precedes a necessary second modality of treatment.

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.

Organs which might be damaged during exposure to a toxin or to some form of therapy. It most frequently refers to healthy organs located in the radiation field during radiation therapy.

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