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. 2013 Feb 21;76(5):734–740. doi: 10.1111/bcp.12098

Table 2.

Rituximab pharmacokinetic parameters

Model Value (95% confidence interval) Coefficient of variation (%)
Clearance (CL; ml h−1) = θ1 × θ2PP
 Clearance (CL; ml h−1) θ1 = 6.64 (3.29–9.99) 35.6
 Plasmapheresis factor (PP) θ2 = 261 (146–376)
 Central volume (V; l) θ3 = 2.48 (1.78–3.18) 20.5
 Transfer constant K12 (h−1) θ4 = 0.0158 (0.0078–0.0238)
 Transfer constant K21 (h−1) θ5 = 0.0154 (0.0116–0.0192) 40.1
Interoccasion variability on CL 14.7
Interoccasion variability on V 14.8