Table 1

Concentrations of protein C, APC, or rhAPC in humans


Concentrations (ng/ml)

Normal endogenous protein C levels
4,000
Normal endogenous APC levels
1
rhAPC in PROWESS patients (median steady-state levels)
45
Levels of APC/rhAPC used in many non-clinical in vitro/in vivo studies
1,000–20,000

APC, activated protein C; PROWESS, Recombinant Human Activated Protein C Worldwide Evaluation in Severe Sepsis; rhAPC, recombinant human activated protein C (drotrecogin alfa [activated]).

Macias et al. Critical Care 2005 9(Suppl 4):S38   doi:10.1186/cc3747