Table 1.

Biomarker Results On the Basis of Treatment Arm and Key Patient Characteristics

Biomarker Result	% of Total Patients by Treatment Arm
	Erlotinib (n = 72)	CP + Intercalated Erlotinib (n = 71)	Total(N = 143)
IHC result
Positive	93	92	92
Negative	4	8	6
FISH result
Positive	54	54	54
Negative	43	46	45
EGFR mutation result
Mutation	18	17	17
Activating mutation	12	10	11
Exon 19 deletion	11	4	8
Exon 21 L858R mutation	1	6	3
Other mutation	6	7	6
No mutation	67	65	66
KRAS mutation result
Mutation	18	23	20
No mutation	75	73	74
E-cadherin
High	36	30	33
Low	33	38	36
Vimentin
High	29	17	23
Low	40	48	44

Abbreviations: CP, carboplatin/paclitaxel; IHC, immunohistochemistry; FISH, fluorescent in situ hybridization.