Cytotoxic Chemotherapies and Biologic Agents
| Agent | n |
| Cytotoxic chemotherapy (5-fluorouracil, oxaliplatin, irinotecan) | |
| None | 15 (3%) |
| 1–2 | 216 (41%) |
| 3 | 295 (56%) |
| Biologic therapy (bevacizumab, cetuximab, panitumumab, regorafenib) | |
| None | 114 (21%) |
| 1 | 295 (56%) |
| 2 | 117 (22%) |
| 3 | 4 (<1%) |
| 4 | 1 (<1%) |