TABLE 5.
Mouse PK/PD models parameter in fast replicating, slow replicating bacteria, and relapse phase using monotherapy and combinationsa
Drug regimen | SUPER drug | Parameter | Value | Relative standard error | Unit | SUPER drug fraction unbound ratio of human vs mouse |
---|---|---|---|---|---|---|
B | B | E max | 0.515 | 0.007 | day−1 | 1.0 (24) |
EC50 | 0.228 | 0.0027 | mg/L | |||
BPaZ | B | EC50 | 0.151 | 0.008 | mg/L | |
E max | 0.515 | FIX | day−1 | |||
K net | 0.0044 | 1.43 | day−1 | |||
BPaM | B | EC50 | 0.7928 | 0.00005 | mg/L | |
E max | 0.515 | FIX | day−1 | |||
K net | 0.0126 | 1.52 | day−1 | |||
BPaMZ | B | EC50 | 0.00000226 | 0.0324 | mg/L | |
E max | 0.690 | 0.0208 | day−1 | |||
K net | 0.0052 | 0.930 | day−1 | |||
Pa | Pa | EC50 | 3.46 | 0.00306 | mg/L | 0.71 (25, 26) |
E max | 0.429 | 0.00122 | day−1 | |||
γ | 0.374 | 0.0121 | ||||
PaZ | Pa | EC50 | 0.0765 | 0.0033 | mg/L | |
E max | 0.604 | 0.00666 | day−1 | |||
PaM | Pa | EC50 | 0.526 | 0.000108 | mg/L | |
E max | 0.429 | FIX | day−1 | |||
γ | 2.309 | 0.00007 | ||||
PaMZ | Pa | E max | 0.406 | 0.000411 | day−1 | |
EC50 | 0.0724 | 0.000820 | mg/L | |||
K net | 0.0492 | 0.366 | day−1 |
Emax, maximum rate of bacterial kill per day; EC50, the concentration of drug required to reach 50% of the maximum rate of bacterial kill per day; Knet, the net growth rate of bacterial after treatment has ended; γ, the Hill coefficient determining the steepness of the exposure response curve.