Table 2.
0.005 mg kg−1 | 0.05 mg kg−1 | 0.5 mg kg−1 | 2.5 mg kg−1 | 10 mg kg−1 | |
---|---|---|---|---|---|
(n = 3) | (n = 3) | (n = 6) | (n = 6) | (n = 6) | |
AUC(0,∞) (mg ml−1 h) | – | 0.404 (6.4) | 4.04 (10.5) | 26.6 (10.9) | 76.0 (28.6) |
n = 2 | n = 5 | n = 6 | n = 6 | ||
AUC(0,week 4) (mg ml−1 h) | – | 0.232 (1.7) | 2.56 (11.7) | 16.4 (5.0) | 43.0 (14.6) |
n = 2 | n = 6 | n = 6 | n = 6 | ||
Cmax (µg ml−1) | 0.130 (7.6) | 0.883 (0.9) | 11.1 (14.4) | 87.4 (15.1) | 197 (22.1) |
n = 2 | n = 3 | n = 6 | n = 6 | n = 6 | |
tmax (h) | 1.25 (0.50, 2.00) | 4.00 (2.00, 4.00) | 2.04 (1.00, 12.0) | 3.00 (2.00, 12.0) | 2.00 (1.00, 4.00) |
n = 2 | n = 3 | n = 6 | n = 6 | n = 6 | |
t1/2 (h) | – | 540 (8.1) | 467 (20.0) | 591 (24.2) | 578 (39.4) |
n = 2 | n = 5 | n = 6 | n = 6 | ||
CL (ml day−1 kg−1) | – | 2.98 (6.3) | 2.98 (10.5) | 2.25 (10.9) | 3.17 (28.6) |
n = 2 | n = 5 | n = 6 | n = 6 | ||
Vss (ml kg−1) | – | 94.6 (1.2) | 83.2 (9.7) | 67.3 (13.9) | 105 (19.3) |
n = 2 | n = 5 | n = 6 | n = 6 |
Values represent median (range) for tmax and geometric mean (between subject coefficient of variation, CVb%) for all other parameters.
For the 0.005 mg kg−1 dose group, AUC(0,∞), AUC(0,week 4), t1/2, CL, and Vss were not determined because none of the patients had sufficient plasma concentration data for calculation of these parameters. % AUC extrapolated was below 20% except in three subjects, two at the 0.05 mg kg−1 dose (20% and 26%) due to LLQ censoring and one subject at the 10 mg kg−1 dose (25%). AUC(0,∞), area under the plasma concentration–time curve (AUC) from time zero extrapolated to infinity; AUC(0,week 4), AUC from time zero to week 4; Cmax, maximum observed plasma concentration; tmax, time of maximum observed plasma concentration; t1/2, terminal phase half-life; CL = systemic clearance; Vss, volume of distribution at steady-state.