Table 3.
Population estimated model parameters and related information
PK/PD parameter | Population mean [θ (SE for θ)] | Interindividual variance (ω,% CV) |
---|---|---|
CLx/f (ml h−1)* | 7.32 (0.153) | 20.3 |
CLX/f exponent for body weight | 0.911 (0.135) | |
ΔCLC/f (ml h−1) | 5.86 (0.920) | 34.9 |
CLE/f (ml h−1)† | 71.0 (4.68) | 25.3 |
CLE/f exponent for baseline IgE | −0.281 (0.0312) | |
PE/f (µg h−1)† | 30.3 (2.04) | 23.1 |
PE/f exponent for baseline IgE | 0.657 (0.0301) | |
Correlation between η(CLE/f) and η(PE/f) | 0.968 | |
VX/f (ml)*‡ | 5900 (107) | 13.0 |
VX/f exponent for body weight | 0.658 (0.100) | |
VC/f (ml) | 3630 (223) | 25.0 |
ka (h−1) | 0.0200 (0.00114) | 39.9 |
Kd0 (nm) | 1.07 (0.118) | |
α | 0.157 (0.0306) | |
Intra-individual variance (σ,% CV) | ||
Omalizumab | 16.7 | |
Total IgE | 21.1 | |
Free IgE | 21.8 |
NONMEM objective function value: 37375.330. Total no. of observation records: 3192. Total no. of individuals: 202.
The value at 61.1 kg of body weight.
The value at 482.4 ng ml−1 of baseline IgE (30.3 µg h−1 = 0.159 nmol h−1).
VE/f was assumed to be the same as VX/f.