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. 2020 Jun;32(3):370–382. doi: 10.21147/j.issn.1000-9604.2020.03.08

5. PK parameters and PARP inhibition following twice daily fluzoparib dosing.

PK Parameter 80 mg bid (n=10) 100 mg bid (n=13) 150 mg bid (n=13)
Mean SD CV (%) Mean SD CV (%) Mean SD CV (%)
PK, pharmacokinetic; PARP, poly(ADP-ribose) polymerases; Tmax, time to peak concentration (Cmax); Css,max, Cmax at steady state; Css,min, minimum concentration at steady state; Css,avg, average steady-state concentration; AUC0–10 h, area under the curve from time 0 to10 h; λz, first-order rate constant of terminal phase; t1/2, terminal half-life; CLss/F, apparent total clearance of the drug at steady state; Vz/F, apparent volume of distribution; DF, coefficient of fluctuation; Rac_Cmax, accumulation in terms of Cmax; Rac_AUC, accumulation in terms of AUC; SD, standard deviation; CV, coefficient of variation.
Tmax(h) 2.50 (1.00−3.00) 3.00 (2.00−6.00) 3.00 (1.00−4.00)
Css,max(μg/mL) 5.18 1.68 32.4 5.94 2.99 50.3 8.45 1.83 21.6
Css,min(μg/mL) 2.69 1.07 39.8 3.15 1.96 62.4 4.06 1.05 25.8
Css,avg (μg/mL) 3.82 1.26 32.8 4.52 2.55 56.4 6.08 1.34 22.1
AUC0−10 h(h·μg/mL) 38.2 12.6 32.8 45.2 25.5 56.4 60.8 13.4 22.1
λz(1/h) 0.0706 0.0286 40.5 0.0763 0.0306 40.1 0.0800 0.0177 22.2
t1/2(h) 11.40 4.86 42.6 10.80 4.78 44.4 9.14 2.38 26.0
CLss/F (L/h) 2.31 0.76 32.9 2.96 1.69 57.0 2.58 0.57 22.0
Vz/F (L) 35.8 14.9 41.6 38.5 27.6 71.6 34.6 14.5 41.9
DF (%) 66.7 12.0 18.0 68.1 17.8 26.2 73.2 17.3 23.7
Rac_Cmax 2.09 0.52 24.7 1.73 0.41 23.4 1.76 0.33 18.7
Rac_AUC 2.23 0.51 22.8 2.08 0.39 18.5 1.86 0.35 18.7