Table 1.

SCCHN Cell Line	IC50 gefitinib	IC50 AZD0530
1483	15 µM	1 µM
UM-22B	20 µM	1 µM
PCI-15B	10 µM	1.3 µM
PCI-37B	6.5 µM	1 µM
Cal-33	6 µM	0.6 µM