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. 2024 Nov 22;5(2):100657. doi: 10.1016/j.xops.2024.100657

Table 3.

Model-Predicted First Dose and Steady-State Exposure Metrics in Serum and Vitreous Humor

Pegcetacoplan Dose Regimen Summary Statistic First Dose
Steady-State
AR
Cmax, μg/mL Cmin, μg/mL Cavg, μg/mL AUCτ, μg/mL· day Tmax, Days Cmax, μg/mL Cmin, μg/mL Cavg, μg/mL AUCτ, μg/mL· day Tmax, Days
Serum exposure
 15 mg monthly Median 1.60 0.200 1.20 35.9 10.5 2.20 1.10 1.80 52.8 8.50 1.50
5th, 9th percentile 0.900, 2.10 0.100, 0.300 0.700, 1.70 21.4, 49.6 7.50, 13.5 1.40, 3.00 0.500, 1.70 1.10, 2.50 32.4, 74.4 6.50, 9.50 1.20, 1.80
Geometric mean 1.50 0.200 1.10 34.3 10.4 2.20 1.00 1.70 50.8 8.20 1.50
Geometric % CV 29.1 26.2 30.1 30.1 20.9 25.9 43.9 30.6 30.6 14.2 14.5
 15 mg every other month Median 1.50 0.100 0.800 48.5 10.2 1.70 0.200 0.900 52.6 10.0 1.10
5th, 9th percentile 0.600, 2.10 0.100, 0.200 0.300, 1.10 16.5, 65.3 6.00, 14.0 0.700, 2.20 0.100, 0.400 0.300, 1.20 17.9, 71.1 5.70, 12.5 1.00, 1.30
Geometric mean 1.40 0.100 0.700 42.2 9.80 1.50 0.200 0.800 46.2 9.40 1.10
Geometric % CV 53.4 47.1 50.9 50.9 26.2 46.1 70.5 46.0 46.0 24.7 8.35
Vitreous exposure
 15 mg monthly Median 4523 794 1917 57 495 _ 4724 974 2375 71 245 _ 1.20
5th, 9th percentile 4129, 5037 394, 1310 1503, 2335 45 077, 70 035 _ 4172, 5710 422, 1960 1637, 3507 49 106, 105 210 _ 1.10, 1.50
Geometric mean 4550 771 1908 57 228 _ 4815 964 2409 72 266 _ 1.30
Geometric % CV 6.68 42.2 14.7 14.7 _ 12.1 55.8 26.7 26.7 _ 12.3
 15 mg every other month Median 3903 157 1139 68 353 _ 3909 159 1171 70 275 _ 1.00
5th, 9th percentile 3792, 4452 43.2, 712 840, 1835 50 379, 110 103 _ 3792, 4614 42.1, 864 833, 2239 49 997, 134 325 _ 1.00, 1.20
Geometric mean 3974 158 1166 69 985 _ 4008 164 1229 73 758 _ 1.10
Geometric % CV 5.81 110 25.2 25.2 _ 7.88 124 33.1 33.1 _ 8.15

AR = accumulation ratio; AUCτ = area under the concentration-time curve for dosing interval τ; Cavg = average concentration; Cmax = maximum concentration; Cmin = minimum concentration; CV = coefficient of variation; Tmax = time to maximum serum concentration.

N = 121 patients with geographic atrophy receiving pegcetacoplan 15 mg monthly and 110 patients with geographic atrophy receiving pegcetacoplan 15 mg every other month.