VP7-2021: KEYNOTE-522: Phase III study of neoadjuvant pembrolizumab + chemotherapy vs. placebo + chemotherapy, followed by adjuvant pembrolizumab vs. placebo for early-stage TNBC

KEYNOTE-522 (NCT03036488) is a phase III study of neoadjuvant pembrolizumab (pembro) + chemotherapy (chemo) vs. placebo (pbo) + chemo followed by adjuvant pembro vs. pbo in patients (pts) with early-stage TNBC. In prior interim analyses, pembro + chemo showed a significant improvement in pCR and a favorable trend in EFS. We present results from a prespecified interim analysis of KEYNOTE-522. Pts with previously untreated, non-metastatic,...