Table 4. Pharmacokinetic parameters of CTLA4Ig after multiple intravenous infusions of 10 mg/kg in patients with rheumatoid arthritis (n=8). AUC0–Z represents observed AUC0-84 d after the last dose at steady state.
Parameters | AUC(0–z) (mg·d·L−1) | AUC(0–∞) (mg·d·L−1 | MRT (d) | Cl (L·d−1·kg−1) | Vss (L·kg−1) | t1/2 (d) | Ke (d−1) | Cmax (mg·L−1) | Tmax (d) |
---|---|---|---|---|---|---|---|---|---|
1 | 1166 | 1168 | 12.0 | 0.0086 | 0.121 | 9.99 | 0.069 | 181.9 | 0.042 |
2 | 2186 | 2195 | 16.2 | 0.0046 | 0.066 | 4.35 | 0.159 | 258.8 | 0.125 |
3 | 3340 | 3361 | 18.2 | 0.0030 | 0.045 | 12.9 | 0.054 | 291.4 | 0.042 |
4 | 2417 | 2435 | 17.6 | 0.0041 | 0.066 | 14.9 | 0.047 | 288.7 | 0.042 |
5 | 2712 | 2743 | 19.3 | 0.0036 | 0.062 | 20.9 | 0.033 | 303.1 | 0.042 |
6 | 2173 | 2199 | 19.2 | 0.0045 | 0.077 | 13.6 | 0.051 | 217.3 | 0.125 |
7 | 3636 | 3646 | 14.4 | 0.0027 | 0.038 | 11.3 | 0.061 | 261.9 | 0.042 |
8 | 1147 | 1152 | 15.9 | 0.0087 | 0.120 | 13.1 | 0.053 | 173.5 | 0.042 |
Mean | 2347 | 2362 | 16.6 | 0.0050 | 0.074 | 12.6 | 0.066 | 247.1 | 0.063 |
SD | 901 | 906 | 2.5 | 0.0023 | 0.031 | 4.7 | 0.039 | 50.3 | 0.039 |