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Table 5 Objective response rates of first- and second-line treatments in patients who received cetuximab plus chemotherapy

From: Right- and left-sided colorectal cancers respond differently to cetuximab

Response Fist-line treatment Second-line treatment
RSCC LSCRC RSCC LSCRC
Total 33 77 28 68
Best ORR 12 (36.4) 38 (49.4) 2 (7.1) 16 (23.5)
CR 0 (0) 1 (1.3) 0 (0) 1 (1.5)
PR 12 (36.4) 37 (48.1) 2 (7.1) 15 (22.0)
SD 11 (33.3) 33 (42.8) 16 (57.2) 34 (50.0)
PD 10 (30.3) 4 (5.2) 10 (35.7) 17 (25.0)
NA 0 (0) 2 (2.6) 0 (0) 1 (1.5)
P valuea 0.296 0.085
  1. a The ORR was compared between RSCC and LSCRC patients who received chemotherapy alone. Other footnotes as in Tables 1 and 3