Neoadjuvant T-DM1/Pertuzumab Combo Boosts pCR in HER2+ Breast Cancer


“Neoadjuvant ado-trastuzumab emtansine (T-DM1; Kadcyla) in combination with pertuzumab (Perjeta) improved pathologic complete response (pCR) compared with standard of care in patients with advanced HER2-positive breast cancer, according to recently reported data from the adaptively randomized I-SPY 2 trial.

“Of the 249 patients with HER2-positive disease included in the I-SPY 2 trial, 54% of those who received T-DM1/pertuzumab experienced a pCR compared with 22% of those who received the combination of paclitaxel (Abraxane) plus trastuzumab (Herceptin).

“These findings suggest that T-DM1 may ultimately increase survival in these patients, says lead study author Angela M. DeMichele, MD, professor of Medicine and Epidemiology at the University of Pennsylvania.”

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