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Table 3 Pharmacokinetic parameters

From: Safety, tolerability, pharmacokinetics, and pharmacodynamics of the afucosylated, humanized anti-EPHA2 antibody DS-8895a: a first-in-human phase I dose escalation and dose expansion study in patients with advanced solid tumors

 

Step 1

Step 2

0.1 mg/kg (N = 3)

0.3 mg/kg (N = 3)

1.0 mg/kg (N = 3)

3.0 mg/kg (N = 3)

10 mg/kg (N = 3)

20 mg/kg (N = 7)

20 mg/kg

(N = 15)

Cycle 1, n

2

3

3

3

3

6

14

 Cmax, μg/mL

1.70 ± 0.02

5.90 ± 1.18

21.3 ± 8.30

64.4 ± 15.2

169 ± 31.9

545 ± 170

369 ± 73.2

 Tmax, h

3.88 (3.77, 4.00)

3.97 (1.05, 4.07)

3.96 (1.12, 7.00)

4.00 (3.97, 6.90)

6.73 (4.33, 6.97)

3.91 (2.25, 6.88)

3.43 (2.22, 7.00)

 AUClast, μg·day/mL

0.86 ± 0.61

23.2 ± 6.03

124 ± 12.4

423 ± 29.7

943 ± 72.5

2570 ± 457

2340 ± 558

 AUCtau, μg·day/mL

1.62 ± 1.03

24.4 ± 4.99

125 ± 12.1

423 ± 29.6

944 ± 73.1

2570 ± 460

2270 ± 534

 AUCinf, μg·day/mL

NCa ± NCb

33.1 ± 7.27

227 ± 15.8

671 ± 188

1530 ± 439

4520 ± 1910

4500 ± 1700

 T1/2, day

NCa ± NCb

4.94 ± 1.32

12.6 ± 4.43

9.69 ± 4.39

9.95 ± 3.62

11.6 ± 7.52

13.9 ± 6.60

Cycle 2, n

1

2

3

2

0

4

11

 Cmax, μg/mL

1.60 ± NCb

9.54 ± 2.78

32.2 ± 2.12

86.8 ± 10.7

–

618 ± 151

489 ± 105

 Ctrough, μg/mL

0.00 ± NCb

0.54 ± 0.76

10.5 ± 0.23

28.4 ± 0.50

–

188 ± 67.7

148 ± 54.6

 Tmax, h

1.18 (1.18, 1.18)

5.48 (3.97, 7.00)

3.68 (1.13, 24.13)

5.44 (4.00, 6.88)

–

3.11 (2.13, 6.70)

4.00 (2.05, 6.88)

 AUCtau, μg·day/mL

9.14 ± NCb

37.1 ± 5.93

259 ± 27.1

715 ± 13.8

–

4630 ± 1140

3500 ± 1140

 T1/2, day

4.78 ± NCb

4.08 ± 0.91

13.3 ± 1.73

10.8 ± 0.13

–

12.4 ± 6.76

13.6 ± 8.14

  1. Data are presented as mean ± standard deviation, or median (min, max), pharmacokinetic analysis set
  2. Abbreviations: C concentration, T time, AUC area under the curve, T1/2 terminal elimination half-life, NC not calculated
  3. aDate and time data of DS-8895a were not available so values were NC
  4. bTwo or fewer values were available so standard deviation could not be calculated