Significance of Circulating Tumor Cells Detected by the CellSearch System in Patients with Metastatic Breast Colorectal and Prostate Cancer

Table 2

Frequency of events detected by the software as CK-PE+ and DAPI+ that were not classified as CTC in 7.5 mL of blood from normal donors: patients with benign disease, and metastatic breast, colorectal and prostate cancer patients before initiation of a new line therapy.

	CTC
	0				≥1–<5				≥5
	𝑛	mean	SD	med	𝑛	mean	SD	med	𝑛	mean	SD	Med
Normal	285	53	68	40	10	81	108	42	0	—	—	—
Benign	236	38	30	30	18	44	26	47	1	159	—	159
Breast	50	53	29	29	36	73	93	38	86	403	1182	84
Colorectal	217	223	1070	78	121	266	468	116	75	603	1620	230
Prostate	49	420	1713	86	44	222	358	101	125	1301	3020	412