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Patient characteristics at baseline (N=9)
| Characteristic | Number (%) |
|---|---|
| Median age (range) | 52 (31–85) |
| ER and PR <10% by IHC | 9 (100%) |
| HER2 positive (IHC 3+, FISH >2.1) | 1 (11%) |
| Median ECOG performance status | 1 (0–1) |
| Median number of prior chemotherapy regimens for MBC | 1 (0–1) |
| No. patients with visceral metastases | 8 (89%) |
