Vitamin c boost: could it make chemo safer for myeloma patients?

NCT ID NCT06313502

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-phase trial tests whether high-dose vitamin C, combined with a lower dose of the chemotherapy drug melphalan and a stem cell transplant, is safe and effective for people with relapsed multiple myeloma. The study enrolls 18 adults who have already tried at least three prior treatments. The goal is to see if the vitamin C can help the lower chemo dose work better while causing fewer side effects.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

high-dose vitamin C (ascorbic acid) plus reduced-dose melphalan chemotherapy

What this could lead to

If it works, this could point toward a less toxic treatment option for relapsed multiple myeloma, using high-dose vitamin C to boost the effects of lower-dose chemotherapy.

What could go wrong

This is a very early Phase 1 trial with only 18 people, so it is too soon to know if it works or is safe. High-dose vitamin C can cause side effects like kidney stones or infusion reactions.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

plasma cell myeloma plasma cell neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • University of Arkansas for Medical Sciences

    RECRUITING

    Little Rock, Arkansas, 72205, United States

    Contact Phone: •••-•••-••••