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Progression‐free survival at second‐line treatment (PFS2) overall and according to molecular subtype and type of treatment received
| Molecular subtype | T‐DM1 as second‐line | Median PFS (months, CI) | p |
|---|---|---|---|
| Overall | Yes | 7 (5–9) | 0.003 |
| No | 6 (5–7) | ||
| Triple‐positive | Yes | 6 (5–7) | 0.17 |
| No | 6 (5–7) | ||
| ER‐ or PgR‐positive | Yes | 7 (4–10) | 0.05 |
| No | 5 (3–7) | ||
| HRs‐negative | Yes | 10 (8–12) | 0.04 |
| No | 7 (6–8) |
Abbreviations: ER, estrogen receptor; PgR, progesterone receptor.
