Table 2 PIK3CA mutation-dependent responsiveness to pertuzumab treatment (all arms pooled)
PIK3CA exons | Number of patients achieving a pathological complete response (pCR) per-exon mutation/total number of patients with a mutation in that exon (population pCR rate 139/225 (62%)) |
|---|---|
Exon 7 | 0/0 |
Exon 9 | 5/11 |
Exon 20 | 14/28 |