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Table 3 Objective response rate to first-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 61 33 56 77
Best ORR 16 (26.2) 12 (36.4) 16 (28.6) 38 (49.4)
CR 3 (4.9) 0 (0) 0 (0) 1 (1.3)
PR 13 (21.3) 12 (36.4) 16 (28.6) 37 (48.1)
SD 28 (45.9) 11 (33.3) 28 (50.0) 33 (42.8)
PD 14 (23.0) 10 (30.3) 12 (21.4) 4 (5.2)
NA 3 (4.9) 0 (0) 0 (0) 2 (2.6)
P value a 0.349 0.005
  1. All values are presented as the number of patients followed by the percentages in parentheses
  2. a The ORR to the first-line treatment was compared between the chemotherapy and cetuximab plus chemotherapy groups in RSCC and LSCRC patients, respectively
  3. ORR, objective response rate; CR, complete response; PR, partial response; SD, stable disease; PD, progressive disease; NA, not available. Other footnotes as in Table 1