Permeability is a critical determinant of oral drug absorption and systemic distribution. Our in vitro models such as PAMPA and cell-based monolayers (Caco-2, MDCK -MDR1/BCRP), enable mechanistic evaluation of passive diffusion and transporter-mediated movement. These systems allow bidirectional transport assessment and express key human efflux transporters, including P-glycoprotein (MDR1) and BCRP, which significantly influence drug disposition.

Characterizing compound interactions with these transporters supports accurate prediction of in vivo pharmacokinetics and informs potential drug-drug interaction risks. These insights strengthen pharmacokinetic modeling, CNS drug design, and strategic decision-making across discovery programs.

Scientists conducting permeability assays in a laboratory environment to evaluate drug transport across biological barriers for systemic exposure.
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PAMPA Permeability
PAMPA Permeability
About the Assay Parallel artificial membrane permeability assay (PAMPA) is an in vitro method to…
Technical Notes
MDCKII-BCRP
MDCKII-BCRP
About the Assay The MDCKII–BCRP (Madin–Darby canine kidney II) is a canine epithelial cell line…
Technical Notes
MDCKII-MDR1
MDCKII-MDR1
About the Assay The MDCKII–MDR1 (Madin–Darby canine kidney II) is a canine epithelial cell line…
Technical Notes
Caco-2 Permeability
Caco-2 Permeability
About the Assay The Caco-2 cell line is derived from human colorectal adenocarcinoma. During extended…
Technical Notes

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Form & Formulation
in vivo Pharmacology