Could a Centuries-Old poison become a new weapon against a blood disorder?

NCT ID NCT06670222

First seen Aug 06, 2026 · Last updated Aug 07, 2026 · Updated 1 time

Summary

This early-stage trial is testing whether an oral form of arsenic trioxide can safely help people with low-risk myelodysplastic syndromes (MDS) who have not improved with standard treatments. The study will first find the safest dose, then check how well it works after several cycles. Participants are adults with low-risk MDS who have failed or are not eligible for other therapies.

What this could mean

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

Active substance
oral arsenic trioxide (ATO)
What this could lead to
If it works, oral arsenic could offer a new treatment option for people with low-risk myelodysplastic syndromes who have not responded to standard therapies.
What could go wrong
This is an early-phase trial with a small number of participants, so the benefits are uncertain. Arsenic can be toxic, and the study is primarily checking safety and the right dose.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • CHU de Nice - Hôpital l'Archet - Service d'hématologie clinique

    RECRUITING

    Nice, 06200, France

  • Hôpital Saint Louis - Service Hématologie séniors

    RECRUITING

    Paris, 75010, France

  • Institut Gustave Roussy - Service d'hématologie

    RECRUITING

    Villejuif, 94805, France

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