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November 16, 2022
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Proton partial breast radiotherapy appears effective, safe for early breast cancer

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Proton therapy for partial breast irradiation provided cancer control in 100% of cases of early-stage ER-positive breast cancer, according to 3-year results from a prospective, multicenter phase 2 trial.

Toxicities appeared minimal and patient-reported quality of life appeared acceptable, according to investigators.

The findings support proton therapy as an effective and safe delivery option for partial breast irradiation, J. Isabelle Choi, MD, clinical director and director of research at New York Proton Center, as well as radiation oncologist at Memorial Sloan Kettering Cancer Center, and colleagues concluded.

Healio spoke with Choi about the study results and their potential implications.