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Chemotherapy regimens administered following disease progression after first‐line chemotherapy
| Second‐line | Third‐line | Fourth‐line | ≥Fifth‐line | Total a | |
|---|---|---|---|---|---|
| Amrubicin | 34 | 3 | 1 | 0 | 38 |
| Topotecan | 1 | 11 | 2 | 1 | 15 |
| Irinotecan | 1 | 3 | 3 | 1 | 8 |
| CBDCA + etoposide | 4 | 1 | 1 | 1 | 7 |
| CDDP + irinotecan | 2 | 0 | 0 | 1 | 3 |
| CBDCA + paclitaxel | 0 | 0 | 1 | 2 | 3 |
| Others | 0 | 1 | 0 | 1 | 2 |
| Beyond atezolizumab | 1 | ‐ | ‐ | ‐ | |
| Best supportive care | 14 | ‐ | ‐ | ‐ |
Abbreviation: CBDCA, carboplatin; CDDP, cisplatin.
Total number of patients.
