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. 2018 Feb;364(2):287–299. doi: 10.1124/jpet.117.245522

TABLE 1 .

Physiochemical and biochemical assays for SMM-295

Assay Species Receptor Parameter Value CB1/CB2 Efflux Ratio (B-A/A-B)
Binding Human CB1 Ki 379 ± 53 nM 31
Human CB2 Ki 12 ± 2.26 nM
cAMP inhibition Human CB1 EC50 1190 ± 22.1 nM 66
Human CB2 EC50 18.1 ± 1.45 nM
Protein binding (% bound) Human >99.9
Mouse >99.9
hERG (% inhibition) Human 10 μM 4 ± 3
Human 1 μM <0.1%
Permeability Human Papp A →B 5.2 ± 0.4 × 10−6 cm/s 1.4
Human Papp B → A 7.1 ± 1.2 × 10−6 cm/s
Human Papp A → B (+ verapamil) 7.9 ± 0.1 × 10−6 cm/s 0.9
Human Papp B → A (+ verapamil) 6.7 ± 0.2 × 10−6 cm/s