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. 2020 Apr 18;59(10):1273–1290. doi: 10.1007/s40262-020-00888-w

Table 3.

Gilteritinib pharmacokinetic parameters after single (Day-2) and multiple administrations (Day 15), CHRYSALIS

Single dose
Parameter 20 mg (n = 5) 40 mg (n = 3) 80 mg (n = 3) 120 mg (n = 3) 200 mg (n = 3) 300 mg (n = 3) 450 mg (n = 3)a
Cmax (ng/mL)
 Mean (SD) 28.1 (21.5) 25.0 (14.6) 75.3 (25.2) 137 (94.4) 168 (45.3) 204 (136) 208 (51.8)
Median (range) 23.7 (7.5–64.5) 16.99 (16.3–41.8) 71.5 (52.2–102) 85.7 (78.9–246) 149 (136–220) 137 (115–361) 216 (152–255)
AUC24 (ng·h/mL)
 Mean (SD) 302 (207) 360 (223.5) 1216 (473) 2480 (1972) 3022 (844) 4163 (3178) 3324 (221.1)
 Median (range) 262 (98.5–642) 315 (163–603) 995 (895–1759) 1393 (1291–4756) 2538 (2533–3997) 2446 (2214–7830) 3324 (3168–3480)
Tmax (h)
 Median (range) 2.0 (0.50–4.0) 5.98 (3.97–24.0) 4.0 (4.0–4.1) 2.1 (2.0–3.8) 5.2 (4.0–5.97) 6.1 (4.1–24.1) 5.8 (4.1–5.92)
Multiple dosing
Parameter 20 mg (n = 4)b 40 mg (n = 3)c 80 mg (n = 3) 120 mg (n = 3) 200 mg (n = 2) 300 mg (n = 3) 450 mg (n = 1)
Cmax (ng/mL)
 Mean (SD) 64.6 (48.8) 108 (31.92) 376 (150.5) 374 (190) 1462 (815) 1525 (665) 1528
 Median (range) 45.6 (30.5–137) 106 (76.7–140) 396.3 (217–516) 282 (248–593) 1462 (886–2038) 1257 (1036–2282)
AUC24 (ng∙h/mL)
 Mean (SD) 1299 (1006) 2482 (33.3) 6958 (3273) 6943 (3221) 31,428 (21,412) 31,005 (10,068) 34,768
 Median (range) 917.0 (540–2440) 2482 (2458–2505) 6234 (4108–10,532) 6180 (4171–10,477) 31,428 (16,288–46,568) 28,711 (22,282–42,022)
Tmax (h)
 Median (range) 4.0 (4.0–6.0) 3.9 (0.50–6.0) 4.3 (4.0–4.4) 2.2 (1.95–5.75) 6.0 (6.0–6.1) 6.1 (4.1–6.1) 5.93
t½ (h)
 Mean (SD) 62.1 (17.9) 152 (129.2) 86.1 (24.1) 45.9 (18.83) 142 (61.5) 142 (55.0) NC
 Median (range) 54.46 (49.4–82.6) 151.8 (60.5–243) 91.03 (60.0–107) 44.93 (27.5–65.1) 142 (98.4–185) 159 (80.7–187)
Rac
 Mean (SD) 4.3 (1.069) 9.6 (7.8) 5.7 (1.4) 3.3 (1.2) 9.0 (3.7) 9.1 (3.3) NC
 Median (range) 3.8 (3.5–5.5) 9.6 (4.2–15.1) 6.0 (4.1–6.97) 3.2 (2.2–4.4) 9.0 (6.4–11.7) 10.1 (5.4–11.7)
Ctrough (ng/mL) n = 11 n = 12 n = 20 n = 61 n = 79 n = 15 n = 1
 Mean (SD) 43.5 (23.5) 72.9 (40.1) 165 (88.0) 367 (253) 816 (557) 1242 (723) 1170
 Median (range) 43.4 (13.6–37.5) 66.6 (26.7–166) 110 (78.6–339) 292 (77.1–1173) 668 (90.5–2925) 1085 (470–2391)

AUC24 area under the concentration–time curve from time of dosing to 24 h post-dose, Cmax maximum plasma concentration, Ctrough trough concentration, NC not calculated, Rac accumulation ratio, SD standard deviation, t½ elimination ratio (calculated from Rac), Tmax time to reach maximum concentration

an = 2 for AUC24

bn = 3 for AUC24, t½, and Rac

cn = 2 for AUC24, t½, and Rac