Dr. Whelan on the Women the MA.20 Trial Benefits

Lead study investigator Timothy J. Whelan, BM, BCh, professor of Oncology and the division head of Radiation Oncology at McMaster University and the Juravinski Cancer Centre, Hamilton, Ontario, discusses the amount of women, by percent, that might benefit from the results of the NCIC-CTG MA.20 intergroup phase III trial for women with breast conserving surgery that usually receive whole breast irradiation.

Dr. Whelan says on average at least 50%, or perhaps even higher, have breast conserving surgery. Not all of those will be node positive.