Could a breast cancer drug tame kaposi sarcoma?

NCT ID NCT04941274

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests a drug called abemaciclib, already used for breast cancer, in people with Kaposi sarcoma (KS), both with and without HIV. The goal is to find a safe dose and see if it can shrink KS tumors. About 111 adults will take the drug daily in 28-day cycles until their cancer worsens or side effects become too much.

What this could mean

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

Active substance

abemaciclib (a cancer drug taken as tablets)

What this could lead to

If it works, this could offer a new treatment option for Kaposi sarcoma, potentially shrinking tumors and controlling the disease.

What could go wrong

This is an early-phase trial (phase I/II) with only 111 participants, so the drug may not work or may have side effects. It is not a cure, and patients may need ongoing treatment.

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.

AIDS Kaposi's sarcoma

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

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

    Contact Phone: •••-•••-••••