A data-driven approach was adopted to derive new one- and two-species-based methods for predicting human drug clearance (CL) using CL data from rat, dog, or monkey (n = 102). The new one-species methods were developed as CL(human)/kg = 0.152 x CL(rat)/kg, CL(human)/kg = 0.410 x CL(dog)/kg, and CL(human)/kg = 0.407 x CL(monkey)/kg, referred to as the rat, dog, and monkey methods, respectively. T...