Skip to main content

Table 2 PSA kinetic parameters, mean ± SD (95 % CI)

From: Association of early PSA decline and time to PSA progression in abiraterone acetate-treated metastatic castration-resistant prostate cancer; a post-hoc analysis of Japanese phase 2 trials

 

JPN-201 (n = 48)

JPN-202 (n = 46)

 

Chemotherapy-naive

Chemotherapy-treated

Maximum % PSA decline

64.4 ± 38.3 (53.3–75.5)

19.7 ± 59.4 (2.0–37.3)

Time to PSA nadir (months)

5.3 ± 5.6 (3.7–6.9)

2.0 ± 3.4 (1.0–3.0)

Nadir PSA value (ng/mL)

19.5 ± 28.3 (11.3–27.7)

184.9 ± 282.3 (101.0–268.7)

PSA response (≥30 %) at week 12, n (%; 95 % CI)

35 (72.9; 58.2–84.7)

15 (32.6; 19.5–48.0)

PSA response (≥50 %) at week 12, n (%; 95 % CI)

29 (60.4; 45.3–74.2)

13 (28.3; 16.0–43.5)

PSA response (≥90 %) at week 12, n (%; 95 % CI)

9 (18.8; 8.9–32.6)

2 (4.3; 0.5–14.8)

PSA response (≥50 %) in treatment period, n (%; 95 % CI)

30 (62.5; 47.48–76.0)

13 (28.3; 16.0–43.5)

Time to PSA progression (months)

9.5 ± 7.4 (7.4–11.6)

3.8 ± 4.8 (2.4–5.2)

  1. PSA prostate-specific antigen, CI confidence interval, SD standard deviation