Free IgE Total IgE
Formulation Statistics Cmin
(ng/ml)
tmin
(day)
Max % decrease
from screening
Cmax
(ng/ml)
tmax
(day)
Max % increase
from screening
Omalizumab solution
(n= 74)
Mean ± SD
(CV%)
Range
7.90 ± 4.06
(51.4)
1.00–21.30
2.0a

0.5–5.0
95.3 ± 3.0
(3.1)
86.7–99.1
1,176 ± 723
(61.5)
392–3,720
21.0a

7.0–84.0
490 ± 172
(35.2)
133–1,043
Omalizumab powder for solution
(n= 80)
Mean ± SD
(CV%)
Range
7.50 ± 4.18
(55.7)
1.95–21.30
2.0a

0.5 – 28.0
95.8 ± 2.7
(2.9)
85.0–99.3
1,136 ± 685
(60.3)
144–3,612
21.0a

10.0–84.0
446 ± 220
(49.4)
39–1,452
aMedian.
IgE = immunoglobulin E, Cmin = minimum serum concentration, tmin = time to Cmin, Cmax = maximum serum concentration, tmax = time to Cmax, mean = arithmetic mean, SD = standard deviation, CV% = coefficient of variation.
Table 4: Pharmacodynamic parameters of free and total IgE in serum after subcutaneous administration of omalizumab solution and omalizumab powder for solution.
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