Table 1 Baseline characteristics of patients with mCRPC starting treatment with abiraterone or enzalutamide.

From: Comparison of circulating tumor cells and AR-V7 as clinical biomarker in metastatic castration-resistant prostate cancer patients

 

Total

Patients [n]

65

Age, median [years] (IQR)

66 (62–76)

Therapy [n] (%)

Abiraterone

46 (70.8)

Enzalutamide

19 (29.2)

Prior abiraterone or enzalutamide [n] (%)

22 (33.9)

Prior use of docetaxel [n] (%)

25 (38.5)

Line of therapy [n] (%)

1st

33 (50.8)

2nd

15 (23.1)

3rd or higher

17 (26.2)

PSA doubling time < 3 months [n] (%)

28 (43.1)

ECOG performance status (all) [n] (%)

0

53 (94.6)

≥ 1

3 (5.4)

Gleason-Score ≥ 8 [n] (%)

47 (77.1)

Median PSA at baseline [ng/ml] (IQR)

24.3 (9.3–114.0)

Median LDH at baseline [U/l] (IQR)

223 (197–275)

Median ALP at baseline [U/l] (IQR)

106 (76–169)

Hb < 12 g/dl [n] (%)

21 (32.3)

Elevated LDH at baseline [n] (%)

27 (41.5)

Elevated ALP at baseline [n] (%)

21 (32.3)

Bone protection [n] (%)

14 (21.5)

Presence of lymph node metastases [n] (%)

37 (56.9)

Presence of bone metastases [n] (%)

51 (78.5)

Presence of visceral metastases [n] (%)

6 (9.2)

  1. ALP alkaline phosphatase, ECOG eastern co-operative oncology group, Hb hemoglobin, IQR interquartile range, LDH lactate dehydrogenase, PSA prostate specific antigen.