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.