Blood test hunts hidden cancer, drug aims to stop it returning

NCT ID NCT06923527

First seen Jun 25, 2026 · Last updated Jun 30, 2026 · Updated 3 times

Summary

This study tests whether the drug elacestrant can clear traces of cancer DNA found in the blood of people with hormone receptor-positive breast cancer who are at risk of late recurrence. About 50 adults whose blood tests positive for tumor DNA but show no visible spread will take elacestrant pills daily for up to a year. Researchers will check if the DNA disappears and if it helps keep cancer from coming back.

What this could mean

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

Active substance

Elacestrant (a hormone therapy pill taken daily)

What this could lead to

If successful, this could show that using a blood test to detect leftover cancer DNA and treating with elacestrant helps prevent breast cancer from coming back years later.

What could go wrong

This is a small, early-phase trial with no control group, so results may not be conclusive. Elacestrant can cause nausea, vomiting, and other side effects, and it may not work for everyone.

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.

estrogen-receptor positive breast cancer

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: •••••@•••••

Locations

  • Dana-Farber Cancer Institute

    RECRUITING

    Boston, Massachusetts, 02215, United States

    Contact

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

  • Lombardi Comprehensive Cancer Center at Georgetown University Medical Center

    RECRUITING

    Washington D.C., District of Columbia, 20007, United States

    Contact

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

  • Montefiore Einstein Comprehensive Cancer Center

    RECRUITING

    The Bronx, New York, 10461, United States

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

    Contact

  • Sidney Kimmel Comprehensive Cancer Center at John Hopkins

    NOT_YET_RECRUITING

    Baltimore, Maryland, 21287, United States

    Contact

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

  • The University of Texas MD Anderson Cancer Center

    RECRUITING

    Houston, Texas, 77030, United States

    Contact

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

  • UPMC Hillman Cancer Center

    NOT_YET_RECRUITING

    Pittsburgh, Pennsylvania, 15232, United States

    Contact Email: •••••@•••••

    Contact

  • Yale University

    RECRUITING

    New Haven, Connecticut, 06510, United States

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

    Contact