Study of High Dose Intravenous (IV) Ascorbic Acid in Measurable Solid Tumor Disease

May 14, 2025 updated by: Situs Cancer Research Center

Phase 2 Study of High Dose Ascorbic Acid in Solid Tumor Disease

The study is designed to determine if high doses of intravenous ascorbic acid (vitamin C) can be effective in managing solid tumor diseases. Secondary goals are determination of any palliative effects and improvement of quality of life of patients.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Detailed Description

Ascorbic acid has demonstrated selective cytotoxicity in cancer cells in vitro, while sparing normal cells from its peroxidative effects. This study will examine the effect, if any, of the drug when dosed in patients at a level sufficient to achieve transient serum states of 400mg/dl. Safety of the drug has been shown in a Phase I study when dosed as high as 1.5gm/kg. Patients will be treated twice weekly for 12 weeks (24-cycles) and evaluated for response using RECIST criteria. Patients showing stable disease or objective response will remain on study for up to one year or until absence of measurable disease or disease progression.

Study Type

Interventional

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Arkansas
      • Rogers, Arkansas, United States, 72756
        • Situs Cancer Research Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 18 years or older at time of entry on study
  • Disease extent confirmed and documented by CT scan within 45 days of entry on study
  • normal glucose 6-phosphate dehydrogenase
  • no current calcium oxalate nephrolithiasis with the potential to reduce urinary flow
  • ability to understand the informed consent process and to give informed consent to treatment
  • measurable solid tumor neoplastic disease (using RECIST criteria)
  • life expectancy greater than 8-weeks
  • will agree to undergo central line placement (examples are: port-a-catheter, central venous catheter, percutaneously inserted central catheter [PICC] line placement). Patient or regular caregiver must be able to maintain flush central line as directed by study physician. (Study center will provide periodic site dressing changes as required)
  • Failed curative therapy or patient ineligible for definitive curative therapy
  • Karnofsky performance status of at least 40

Exclusion Criteria:

  • any clinically relevant abnormal findings in physical examination, clinical chemistry, haematology, urinalysis, vital signs, or ECG at baseline which, in the opinion of the investigator, may put the subject at risk because of his/her participation in the study
  • use of any nicotine product including nicotine patches/gum
  • unstable angina not well managed with medication
  • history of calcium oxalate stone formation
  • pregnancy or nursing of an infant
  • any psychiatric disorder by history or examination that would prevent completion of the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Intravenous IVC Intervention
Intravenous ascorbic acid, 1.5g/kg at an infusion rate not to exceed 250mg/min.
Drug: Ascorbic acid (vitamin C)
Intravenous administration of up to 1.5gm/kg of ascorbic acid, twice weekly for up to 12-weeks.
Other Names:
  • Bioniche ascorbic acid, parenteral, 500mg/ml

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Efficacy of treatment
Time Frame: 12-weeks
Survival as a result of efficacy of treatment will be evaluated at 12-weeks. Efficacy is evaluated using RECIST criteria to determine disease response by PET/CT scan interpretation, lab studies and current good clinical practice methodologies for solid tumor interventional treatment.
12-weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Patient self-assessment of Quality of Life at 12-weeks
Time Frame: 12-weeks
Quality of life during treatment will be measured using FACT questionnaires.
12-weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Situs Cancer Research Center

Investigators

  • Principal Investigator: G D Murphy, MD, Situs Cancer Research Center
  • Study Director: J Bolt, PhD, Situs Cancer Research Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

January 1, 2020

Primary Completion (Estimated)

June 30, 2020

Study Completion (Estimated)

June 30, 2020

Study Registration Dates

First Submitted

May 16, 2010

First Submitted That Met QC Criteria

May 17, 2010

First Posted (Estimated)

May 18, 2010

Study Record Updates

Last Update Posted (Actual)

May 18, 2025

Last Update Submitted That Met QC Criteria

May 14, 2025

Last Verified

June 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • L500HD

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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