Research Article

Randomized, Open-Label Phase 2 Study of Apalutamide plus Androgen Deprivation Therapy versus Apalutamide Monotherapy versus Androgen Deprivation Monotherapy in Patients with Biochemically Recurrent Prostate Cancer

Table 3

Demographic and baseline characteristics (intent-to-treat population).

Baseline patient characteristicApalutamide + ADT (n = 31)Apalutamide (n = 29)ADT (n = 30)

Median age, years (range)67.0 (54–78)66.0 (55–79)68.5 (46–80)
Race
 White29 (93.5%)26 (89.7%)26 (86.7%)
 Asian1 (3.2%)1 (3.4%)2 (6.7%)
 Black or African American1 (3.2%)1 (3.4%)0
 Unknown01 (3.4%)2 (6.7%)
 Median time from initial diagnosis to randomization, years (range)6.1 (0.9–22.0)5.7 (0.6–15.7)6.0 (2.2–15.3)
ECOG performance status
 030 (96.8%)27 (93.1%)24 (80.0%)
 11 (3.2%)2 (6.9%)6 (20.0%)
Tumor stage at initial diagnosis
 T101 (3.4%)0
 T1C5 (16.1%)2 (6.9%)3 (10.0%)
 T21 (3.2%)1 (3.4%)2 (6.7%)
 T2A1 (3.2%)4 (13.8%)1 (3.3%)
 T2B2 (6.5%)3 (10.3%)0
 T2C9 (29.0%)8 (27.6%)11 (36.7%)
 T31 (3.2%)1 (3.4%)0
 T3A5 (16.1%)3 (10.3%)7 (23.3%)
 T3B7 (22.6%)6 (20.7%)6 (20.0%)
Gleason score at initial diagnosis
n312729
 ≤720 (64.5%)16 (59.3%)20 (66.7%)
 ≥811 (35.5%)11 (40.7%)9 (31.0%)
 Median PSA at randomization, µg/L (range)4.1 (1.2–38.8)2.7 (1.0–42.3)4.0 (1.2–29.8)
PSA doubling time
 <6 months21 (67.7%)20 (69.0%)19 (63.3%)
 ≥6 months10 (32.3%)9 (31.0%)11 (36.7%)
Risk categories
 Low03 (10.3%)1 (3.3%)
 Intermediate15 (48.4%)14 (48.3)15 (50.0%)
 High16 (51.6%)12 (41.4%)14 (46.7%)
Prior radical prostatectomy28 (90.3%)23 (79.3%)24 (80.0%)
Prior radiation therapy25 (80.6%)25 (86.2%)29 (96.7%)
 Primary4 (12.9%)6 (20.7%)5 (16.7%)
 Salvage20 (64.5%)18 (62.1%)22 (73.3%)
 Other3 (9.7%)2 (6.9%)2 (6.7%)
  Adjuvant2 (6.5%)2 (6.9%)1 (3.3%)
  Pretreatment for brachytherapy1 (3.2%)00
  Metastatic disease/palliative001 (3.3%)
Radical prostatectomy and salvage radiation therapy18 (58.1%)17 (58.6%)21 (70.0%)
Baseline FACT-P total score
n302828
 Median131.2125.0127.0
 Range82.0–144.081.8–150.092.7–150.0

Based on European Association of Urology Prostate Cancer guidelines [26]. Patients with multiple therapies were counted only once. The scoring range of the FACT-P total score for each patient is 0–156, with higher scores indicating better HRQoL and higher treatment tolerability. ECOG :  Eastern Cooperative Oncology Group.