Table 4.
Pharmacokinetic parameters of vilaprisan (VPR) parent after single oral or intravenous administration of VPR without or with concomitant administration of itraconazole (ITZ) 200 mg/day
Study | MB study VPRa Oral |
DDI study VPRb Oral |
DDI study VPR + ITZc Oral |
MT sub-study VPRd Intravenous |
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---|---|---|---|---|---|---|---|---|---|
Treatment | |||||||||
Route of administration | |||||||||
Parameter | Unit | N = 6 | N = 14 | N = 14 | N = 7 | ||||
gMean (CV%) | [Range] | gMean (CV%) | [Range] | gMean (CV%) | [Range] | gMean (CV%) | [Range] | ||
AUC | µg·h/L | 324 (38.0) | [217–504] | 325 (42.3) | [191–607] | N/C | 2170 (35.9) | [1410–3500] | |
AUC0–24 | µg·h/L | N/C | 146 (29.5) | [95.8–217] | 302 (18.9) | [238–388] | 980 (26.2) | [731–1330] | |
AUC0–3d | µg·h/L | N/C | 247 (33.4) | [153–393] | 740 (18.1) | [586–970] | N/C | ||
AUC0–11d | µg·h/L | N/C | 321 (41.3) | [190–580] | 2000 (18.4) | [1520–2740] | N/C | ||
µg·h/L | 317 (38.3) | [212–495] | 317 (42.6) | [184–591] | 2000 (18.4) | [1520–2730] | 2100 (35.4) | [1340–3300] | |
C max | µg/L | 24.9 (38.5) | [15.3–41.2] | 16.6 (32.3) | [9.14–24.5] | 29.5 (19.5) | [21.9–38.7] | 277 (29.7) | [168–389] |
t 1/2 | h | 31.6 (24.7) | [22.6–44.1] | 38.9 (20.7) | [29.0–60.7] | N/C | 42.4 (20.7) | [28.6–56.7] | |
t max | h | 1.00e | [1.00–2.00] | 2.50e | [1.42–4.00] | 2.25e | [1.50–3.00] | 0.483e | [0.333–0.483] |
t last | h | 144e | [120–240] | 204e | [144–312] | 263e | [263–263] | 215e | [167–215] |
CL/F or CL | L/h | 15.1 (38.0) | [9.7–22.4] | 12.3 (42.3) | [6.59–21.0] | N/C | 7.22 (35.9) | [4.47–11.1] | |
Vz/F or Vz | L | 691 (27.4) | [492–978] | N/C | N/C | 442 (33.8) | [302–713] | ||
V ss | L | – | – | – | 359 (23.4) | [277–479] | |||
MRTIV | h | – | – | – | 49.7 (19.1) | [38.0–68.3] | |||
F | % | – | – | – | 61.1 | [53.1–69.5] |
AUC0–t area under the concentration–time curve from time zero to time t, CL total body clearance of drug from plasma calculated after intravenous administration, CL/F total body clearance of drug from plasma calculated after oral administration (apparent oral clearance), Cmax maximum plasma concentration, CV% coefficient of variation [%], DDI drug–drug interaction, F absolute oral bioavailability, gMean geometric mean, MB mass balance, MRTIV mean residence time after intravenous administration, MT microtracer, N/C not calculated, t1/2 terminal half-life, tlast time of last concentration above lower limit of quantitation, tmax time to reach Cmax, Vss volume of distribution at steady state, Vz volume of distribution during terminal phase
Figures were rounded to three significant digits
F was calculated as follows:
a[14C]VPR 5 mg
bVPR 4 mg
cVPR 4 mg on the fourth day of concomitant treatment with ITZ 200 mg/day
dIntravenous microdose of [14C]VPR 15.7 µg (37 KBq) 1.5–2 h after oral administration of VPR 4 mg (30-min infusion)
eMedian (range)