Table 1.

Characteristics of the study population.

Sample	Cancer	Placebo (mg)	APG 157 (mg)	Ethnicity	Gender	Age	Site	Stage	P16 expression	Smoking history
P1	Yes	NA	100	White	Male	66	Left tonsil	T2N1	Positive	Quit 1985
P2	No	100	NA	White	Male	34	–	–	–	Former occasionally
P3	Yes	100	NA	White	Male	68	Tongue	T2N0	Negative	No
P4	No	200	NA	Black	Male	49	–	–	–	1/2 PPD
P5	No	NA	200	Black	Male	56	–	–	–	No
P6	No	NA	200	Black	Male	55	–	–	–	1PPD
P7	Yes	NA	200	Black	Male	46	Hypopharynx	T4N2b	Negative	Quit 1985
P8	Yes	200	NA	White	Male	70	FOM	T2N2b	Negative	1PPD
P9	Yes	200	NA	White	Male	62	Right tonsil	T3N2b	Positive	1/2PPD
P10	Yes	NA	200	White	Male	64	FOM	T4aN2a	ND	2 PPD

NA, not applicable; ND, no data available; FOM, floor of mouth; PPD, packs per day; “-” healthy subjects without cancer.