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. Author manuscript; available in PMC: 2022 May 1.
Published in final edited form as: Biopharm Drug Dispos. 2021 Mar 17;42(5):191–203. doi: 10.1002/bdd.2266

TABLE 1.

PK parameters of dexamethasone across 11 species using the joint mPBPKa

Parameter Definition Estimate (CV%)
K p Tissue to plasma partition coefficient 1.07 (1.93)
f d1 Fraction of QCO for tissue 1 0.85 (1.22)
f d2 Fraction of QCO for tissue 2 0.15b
F t Fraction of total tissue volume for tissue 1 0.26 (7.50)
F Bioavailability of intraperitoneal dose in mouse 0.86 (fixed)
k a Absorption rate constant for mice (h−1) 5 (fixed)

Note: The jointly fitted CL values are listed in Table 5.

Abbreviations: AIC, Akaike Information Criterion; CL, clearance; CV, coefficient of variation; mPBPK, minimal physiologically-based pharmacokinetic; PK, pharmacokinetic.

a

AIC = 1410.4.

b

Secondary parameter: fd2 = 1 − fd1.