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Xenobiotica
the fate of foreign compounds in biological systems
Volume 47, 2017 - Issue 3
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General Xenobiochemistry

Predicting pharmacokinetic profile of therapeutic antibodies after iv injection from only the data after sc injection in cynomolgus monkey

, &
Pages 194-201 | Received 11 Feb 2016, Accepted 01 Apr 2016, Published online: 05 May 2016
 

Abstract

1. The number of developed therapeutic monoclonal antibodies (mAbs) has increased in this decade. This study aims to predict their pharmacokinetic profiles after intravenous (iv) injection using only the data taken after subcutaneous (sc) injection in cynomolgus monkey.

2. Two-compartment model parameters, Q, Vc and Vp, were collected from the published data after iv injection in cynomolgus monkey for 21 mAbs (Group A). Bioavailability after sc injection (F), CL and serum/plasma concentration after iv injection of other published 19 mAbs (Group B) were predicted using the estimated geometric means of Q, Vc and Vp in Group A and the serum/plasma concentration after sc injection in Group B.

3. F and CL of 18 out of 19 mAbs in Group B were successfully predicted within 30% difference of observed value. Moreover, most of the observed serum/plasma concentrations after iv injection of mAbs in Group B were successfully predicted within 2-fold difference. Our approach suggests that iv injection might not be required to evaluate absorption of mAbs after sc injection in cynomolgus monkey. Therefore, our approach might reduce the time and cost of drug development, reduce the burden on resources, and also contribute to animal welfare.

Declaration of interest

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of this article.

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