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. 2022 Oct 20;61(11):1623–1639. doi: 10.1007/s40262-022-01172-9

Table 2.

Summary of plasma pexidartinib and ZAAD-1006a pharmacokinetic parameters

Pharmacokinetic parameter Statistic Esomeprazole Study Itraconazole study Rifampin study Probenecid study
Pexidartinib alone Pexidartinib + esomeprazole Pexidartinib alone Pexidartinib + itraconazole Pexidartinib alone Pexidartinib +
rifampin
Pexidartinib alone Pexidartinib + probenecid
Pexidartinib
Cmax, ng/mL n 16 16 16 13 16 16 15 16

Mean

(SD)

6694

(1795)

3123

(1143)

4215

(851)

6650

(2192)

5261

(1939)

3499

(1051)

5377

(1763)

5583

(1844)

tmax, h n 16 16 16 13 16 16 15 16

Median

(range)

3.0

(1.50–4.50)

2.0

(1.50–4.00)

2.5

(1.50–4.50)

2.0

(1.50–4.50)

2.5

(1.50–4.00)

3.0

(1.50–4.50)

2.5

(1.50–4.50)

2.5

(1.50–3.50)

AUC, ng•h/mL n 16 16 16 13 15 16 15 16

Mean

(SD)

107,585

(28,219)

58,054

(17,514)

76,045

(17,211)

139,842

(37,676)

96,697

(28,517)

35,446

(12,046)

77,509

(28,477)

118,899

(27.1)

t½, h n 16 16 16 13 15 16 15 16

Mean

(SD)

25.3

(7.11)

26.7

(8.96)

24.2

(3.71)

28.8

(4.18)

25.4

(4.93)

16.8

(4.21)

21.5

(18.2–42.3)

26.7

(19.5–38.6)

ZAAD-1006a
Cmax, ng/mL n 16 16 16 13 16 16 15 16

Mean

(SD)

5464

(1339)

2593

(827)

3903

(842)

6019

(1435)

4780

(2110)

6574

(2753)

4403

(1331)

4284

(1191)

tmax, h n 16 16 16 13 16 16 15 16

Median

(range)

4.25

(3.00–5.00)

4.25

(2.00–4.50)

4.50

(2.00–5.00)

4.50

(2.50–8.00)

4.50

(2.50–4.50)

4.50

(3.00–8.00)

4.50

(2.50–5.00)

6.98

(3.50–11.9)

AUC, ng•h/mL n 16 16 16 13 16 16 15 16

Mean

(SD)

134,977

(37,097)

71,677

(24,690)

117,211

(29,221)

246,701

(66,704)

131,507

(53,792)

75,577

(37,180)

97,684

(33,889)

208,436

(48,136)

t½, h n 16 16 16 13 16 16 15 16

Mean

(SD)

25.3

(6.92)

26.7

(7.59)

24.0

(4.28)

30.0

(4.11)

26.0

(5.70)

16.1

(4.55)

25.1

(7.28)

28.6

(4.89)

Metabolite-to-parent ratio
Cmax, MW- adjusted ratio (%) n 16 16 16 13 16 16 15 16

Mean

(SD)

55.9

(11.3)

60.6

(10.6)

66.2

(13.6)

67.9

(21.4)

64.7

(15.9)

131.9

(36.4)

85.2

(23.4)

79.5

(17.6)

AUC, MW-adjusted ratio (%) n 16 16 16 13 15 16 15 16

Mean

(SD)

89.0

(14.6)

86.7

(11.6)

109.6

(20.7)

126.3

(25.1)

95.8

(27.1)

149.5

(47.6)

128.4

(31.2)

181.4

(44.6)

AUC area under the plasma concentration–time curve from 0 to infinity, Cmax maximum plasma concentration, MW molecular weight, SD standard deviation, t½ terminal elimination half-life, tmax time to Cmax