Table 3.

IC₅₀ values for cytotoxicity screening.

Drug	IC50 value (µM)		p-value
	TKCC-OSCC-16	TKCC-OSCC-22
Cetuximab	0.00058	22	<0.0001
Afatinib	0.0051	0.035	<0.0001
Erlotinib	0.096	1.33	<0.0001
Gefitinib	0.034	0.4	<0.0001
Lapatinib	0.16	1.47	<0.0001
Saracatinib	0.32	6.34	<0.0001