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Table 6 Objective response rates to second-line treatment in patients with metastatic colorectal cancer

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

Response RSCC LSCRC
Chemotherapy alone group Cetuximab group Chemotherapy alone group Cetuximab group
Total 44 28 49 68
Best ORR 5 (11.4) 2 (7.1) 5 (10.2) 16 (23.5)
CR 0 (0) 0 (0) 0 (0) 1 (1.4)
PR 5 (11.4) 2 (7.1) 5 (10.2) 15 (22.1)
SD 21 (47.7) 16 (57.2) 23 (46.9) 34 (50.0)
PD 16 (36.4) 10 (35.7) 19 (38.8) 17 (25.0)
NA 2 (4.5) 0 (0) 2 (4.1) 1 (1.5)
P value a 0.698 0.087
  1. a The ORR to the second-line treatment was compared between the chemotherapy and cetuximab plus chemotherapy groups of RSCC and LSCRC patients, respectively.
  2. Other footnotes as in Tables 1 and 3