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. 2016 Feb;356(2):260–266. doi: 10.1124/jpet.115.229278

TABLE 6.

PK-RO Parameter Estimates

Parameter Mean Estimates (%rSE) Intersubject Variability (%rSE) 95% Confidence Interval
Lower Upper
NLLS model (1-parameter)
 IC50 (ng/ml) 0.83 (12) 0.63 1.03
NLLS model (2-parameter)
 rmax (%) 92.9 (4.9) 83.4 102
 IC50 (ng/ml) 0.65 (20) 0.37 0.92
Nonlinear mixed effect (NLME)
 rmax (%) 92.8 (4.7) 85.5 101
IC50 (ng/ml) 0.58 (25) 29.4% (150) 0.38 0.85

rmax, maximum receptor occupancy; %rSE, relative standard error.