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Outcome of patients with decreasing and increasing/highly variable numbers of CETC during maintenance therapy with trastuzumab or observation
| Total | Relapse | Complete remission | P | |
|---|---|---|---|---|
| No trastuzumab | ||||
| Decrease | 19 | 4 | 15 | 0.004 |
| Increase | 9 | 7 | 2 | |
| Trastuzumab | ||||
| Decrease | 25 | 1 | 24 | <0.001 |
| Increase | 11 | 7 | 4 | |
