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. 2022 Aug 1;13(8):895–920. doi: 10.1039/d2md00081d
graphic file with name d2md00081d-u29.jpg graphic file with name d2md00081d-u30.jpg graphic file with name d2md00081d-u31.jpg graphic file with name d2md00081d-u32.jpg
29: Merck90 30: Merck91 31: Bristol-Myers Squibb92 32: Bristol-Myers Squibb93
hNaV1.1 IC50 9000 nMc,i
hNaV1.5 IC50 >33 000 nMc,i >34 000 nMe,p 1900 nMc,o 6400 nMc,o
hNaV1.7 IC50 66 nMe,i 87 nMe,p 4.0 nMe,j 78 nMe,f
Mouse NaV1.7 IC50 295 nM (rhesus)e,i 8800 nMe,p 7.5 nMe,j 54 nMe,f, 34 nMq
310 nM (rhesus)e,p
Mouse PPBb 92.63% (rhesus) 94%, 98% (rhesus) 92% 97.7%, 90%r
NaV1.7 coverage in plasma@efficacious dosagea 12-Fold, 42-fold@12.06, 24.12 mg kg−1 (i.v., rhesus OB) 0.04-Fold@in vivo EC90 (mouse formalin) >43-Fold@100 mg kg−1 14-Fold@100 mg kg−1 (mouse CCI)
1.9-Fold@20 mg kg−1 (s.c., thermal stimulus in rhesus) 4.8-Fold@19.2 mg kg−1 (rhesus OB) >0.77-Fold@100 mg kg−1l (mouse formalin) 0.5-Fold, 1-fold@30, 60 mg kg−1 (mouse CFA)
3-Fold@30 mg kg−1
1-Fold@30 mg kg−1m (mouse formalin)
a

NaV1.7 coverage = free plasma concentration/in vitro NaV1.7 IC50.

b

Plasma protein binding.

c

Value in the automated patch-clamp assay.

d

Value in an inactivated state.

e

Value in the manual patch-clamp assay.

f

Value at Vhold = −60 mV.

g

Calculated from Cmax of the PK study.

h

Value at a voltage yielding 20−50% channel inactivation.

i

Value at a voltage yielding approximately 20% channel inactivation.

j

Value at Vhold = −70 mV.

k

IC50 of mouse DRG NaV1.7.

l

The target coverage in the DRG given the plasma protein binding as an estimate of tissue binding.

m

NaV1.7 coverage in the DRG: free DRG concentration/in vitro IC50 of mouse DRG NaV1.7.

n

5-Hz use-dependent voltage protocol.

o

Value at Vhold = −50 mV.

p

Value under a hyperpolarised assay protocol.

q

IC50 of TTX-S currents in the mouse DRG.

r

Value of the mouse DRG.