One-Time radiation during lumpectomy may simplify breast cancer treatment

NCT ID NCT04994067

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This registry study is following 500 women with early-stage breast cancer who receive a single dose of radiation directly to the tumor site during surgery (IORT). The goal is to see how well this approach controls cancer locally and what side effects occur. Participants are women aged 45 and older with low-risk breast cancer who are candidates for breast-conserving surgery.

What this could mean

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

Active substance

Intra-operative radiation therapy (IORT) using the IntraBeam system

What this could lead to

If successful, this could confirm IORT as a safe and effective option for partial breast irradiation, reducing the need for multiple radiation sessions.

What could go wrong

This is an observational registry, not a controlled trial, so results may not prove cause and effect. Side effects like radiation toxicity are possible, and long-term outcomes are still being tracked.

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.

breast cancer breast neoplasm ductal breast carcinoma in situ invasive breast carcinoma

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

  • Montefiore Medical Center - Moses Campus

    RECRUITING

    The Bronx, New York, 10467-2490, United States

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

    Contact