Could a week of radiation replace six weeks for breast cancer?

NCT ID NCT00185744

First seen Mar 21, 2026 · Last updated Apr 24, 2026 · Updated 3 times

Summary

This study looks at whether a shorter course of radiation (from 1 to 5 days) after breast cancer surgery is as safe and effective as the standard 6.5-week treatment. It includes women aged 40 and older with small tumors who choose lumpectomy. Researchers will track cancer return, side effects, and survival over many years.

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Contacts and locations

Locations

  • Stanford University School of Medicine

    Stanford, California, 94305, United States

Conditions

Explore the condition pages connected to this study.