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SarcomaPhase 2NCT01125449

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

A Phase 2 study testing Ascorbic acid (vitamin C) in people with Sarcoma and Adenocarcinoma, run by Situs Cancer Research Center at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Sarcoma, Adenocarcinoma, Carcinoma
What is being tested?
Ascorbic acid (vitamin C)
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteUnited States
Study dates
1 Jan 2020to 30 Jun 2020
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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)
Show all 10Show fewer
  • 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

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

United States1 site

  • Situs Cancer Research Center

    Rogers, Arkansas, 72756

Other trials in United States

About this study

Official title: 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.

Read the 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.

Being tested
Ascorbic acid (vitamin C)
Keywords
ascorbic acid, vitamin C, antioxidants, vitamins
Medical subject headings
Sarcoma, Adenocarcinoma, Carcinoma, Multiple Myeloma, Desmoplastic Small Round Cell Tumor

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Ascorbic acid (vitamin C)Drug

    Also called Bioniche ascorbic acid, parenteral, 500mg/ml

    Intravenous administration of up to 1.5gm/kg of ascorbic acid, twice weekly for up to 12-weeks.

Study groups in NCT01125449
Study groupRoleWhat they receive
Intravenous IVC InterventionOtherIntravenous ascorbic acid, 1.5g/kg at an infusion rate not to exceed 250mg/min.
Receives: Drug: Ascorbic acid (vitamin C)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Efficacy of treatment

    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.

    Measured: 12-weeks

Secondary outcomes (1)

  1. Patient self-assessment of Quality of Life at 12-weeks

    Quality of life during treatment will be measured using FACT questionnaires.

    Measured: 12-weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 May 2010 (estimated)
  2. Study start1 Jan 2020 (estimated)
  3. Primary completion30 Jun 2020 (estimated)
  4. Study completion30 Jun 2020 (estimated)

Why it stopped: Awaiting response from FDA as to status of parenteral ascorbic acid manufactured by Bioniche (Ireland).

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01125449
Sponsor's protocol ID
L500HD
Status last verified
Jun 2020
First submitted
16 May 2010
Last updated
18 May 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Mikirova NA, Ichim TE, Riordan NH. Anti-angiogenic effect of high doses of ascorbic acid. J Transl Med. 2008 Sep 12;6:50. doi: 10.1186/1479-5876-6-50.

    PubMed 18789157

  • Duconge J, Miranda-Massari JR, Gonzalez MJ, Jackson JA, Warnock W, Riordan NH. Pharmacokinetics of vitamin C: insights into the oral and intravenous administration of ascorbate. P R Health Sci J. 2008 Mar;27(1):7-19.

    PubMed 18450228

  • Duconge J, Miranda-Massari JR, Gonzalez MJ, Taylor PR, Riordan HD, Riordan NH, Casciari JJ, Alliston K. Vitamin C pharmacokinetics after continuous infusion in a patient with prostate cancer. Ann Pharmacother. 2007 Jun;41(6):1082-3. doi: 10.1345/aph.1H654. Epub 2007 May 22. No abstract available.

    PubMed 17519294

  • Riordan HD, Casciari JJ, Gonzalez MJ, Riordan NH, Miranda-Massari JR, Taylor P, Jackson JA. A pilot clinical study of continuous intravenous ascorbate in terminal cancer patients. P R Health Sci J. 2005 Dec;24(4):269-76.

    PubMed 16570523

  • Du J, Martin SM, Levine M, Wagner BA, Buettner GR, Wang SH, Taghiyev AF, Du C, Knudson CM, Cullen JJ. Mechanisms of ascorbate-induced cytotoxicity in pancreatic cancer. Clin Cancer Res. 2010 Jan 15;16(2):509-20. doi: 10.1158/1078-0432.CCR-09-1713. Epub 2010 Jan 12.

    PubMed 20068072

  • Levine M, Espey MG, Chen Q. Losing and finding a way at C: new promise for pharmacologic ascorbate in cancer treatment. Free Radic Biol Med. 2009 Jul 1;47(1):27-9. doi: 10.1016/j.freeradbiomed.2009.04.001. Epub 2009 Apr 8. No abstract available.

    PubMed 19361554

  • Robitaille L, Mamer OA, Miller WH Jr, Levine M, Assouline S, Melnychuk D, Rousseau C, Hoffer LJ. Oxalic acid excretion after intravenous ascorbic acid administration. Metabolism. 2009 Feb;58(2):263-9. doi: 10.1016/j.metabol.2008.09.023.

    PubMed 19154961

  • Hoffer LJ, Levine M, Assouline S, Melnychuk D, Padayatty SJ, Rosadiuk K, Rousseau C, Robitaille L, Miller WH Jr. Phase I clinical trial of i.v. ascorbic acid in advanced malignancy. Ann Oncol. 2008 Nov;19(11):1969-74. doi: 10.1093/annonc/mdn377. Epub 2008 Jun 9.

    PubMed 18544557

  • Chen Q, Espey MG, Sun AY, Lee JH, Krishna MC, Shacter E, Choyke PL, Pooput C, Kirk KL, Buettner GR, Levine M. Ascorbate in pharmacologic concentrations selectively generates ascorbate radical and hydrogen peroxide in extracellular fluid in vivo. Proc Natl Acad Sci U S A. 2007 May 22;104(21):8749-54. doi: 10.1073/pnas.0702854104. Epub 2007 May 14.

    PubMed 17502596

  • Chen Q, Espey MG, Krishna MC, Mitchell JB, Corpe CP, Buettner GR, Shacter E, Levine M. Pharmacologic ascorbic acid concentrations selectively kill cancer cells: action as a pro-drug to deliver hydrogen peroxide to tissues. Proc Natl Acad Sci U S A. 2005 Sep 20;102(38):13604-9. doi: 10.1073/pnas.0506390102. Epub 2005 Sep 12.

    PubMed 16157892

  • Chen Q, Espey MG, Sun AY, Pooput C, Kirk KL, Krishna MC, Khosh DB, Drisko J, Levine M. Pharmacologic doses of ascorbate act as a prooxidant and decrease growth of aggressive tumor xenografts in mice. Proc Natl Acad Sci U S A. 2008 Aug 12;105(32):11105-9. doi: 10.1073/pnas.0804226105. Epub 2008 Aug 4.

    PubMed 18678913

  • Ohno S, Ohno Y, Suzuki N, Soma G, Inoue M. High-dose vitamin C (ascorbic acid) therapy in the treatment of patients with advanced cancer. Anticancer Res. 2009 Mar;29(3):809-15.

    PubMed 19414313

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Ascorbic acid (vitamin C) in people with Sarcoma and Adenocarcinoma, run by Situs Cancer Research Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 10 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 18 May 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Efficacy of treatment (time frame: 12-weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01125449, which also lists 12 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 May 2025.

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