TABLE 1

A summary of the historic data used for the retrospective analysis

Dataset is broken down by species, in vitro system, and number of metabolites identified. Columns two through four represent the number of in vitro/in vivo study pairs that have liver microsomes, suspension hepatocytes, and cocultured hepatocytes as their in vitro matrix, respectively. Columns six and seven contain the average number of metabolites identified in the in vivo circulating profiles and the in vitro profiles, respectively.

SpeciesLiver microsomesSuspension HepatocytesCocultured HepatocytesTotal In Vitro/In Vivo Study PairsAverage No. of Circulating MetabolitesaAverage No. of In Vitro Metabolitesa
Human3150183.1 (±2.8)3.2 (±3.9)
Mouse370104.4 (±4.3)3.3 (±2.2)
Rat4815902.8 (±2.3)4.6 (±4.6)
Dog4120161.9 (±2.0)2.5 (±3.2)
Monkey13045 (±2)5 (±6.7)
Grand total1511851382.9 (±2.5)4.0 (±4.3)
  • aError in parentheses is S.D.