Population pharmacokinetics and pharmacodynamics of busulfan with GSTA1 polymorphisms in patients undergoing allogeneic hematopoietic stem cell transplantation

Author:

Choi Boyoon1,Kim Myeong Gyu1,Han Nayoung1,Kim Therasa2,Ji Eunhee3,Park Seonyang4,Kim In-Wha1,Oh Jung Mi1

Affiliation:

1. College of Pharmacy & Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea

2. College of Pharmacy, Chonnam National University, Gwangju, Korea

3. College of Pharmacy, Gachon University, Incheon, Korea

4. Department of Internal Medicine, Seoul National University Medicine of College, Seoul, Korea

Abstract

Aim: A population pharmacokinetic (PPK) analysis was conducted to describe the influence of GSTA1 polymorphisms on intravenous busulfan in adults undergoing allogeneic hematopoietic stem cell transplantation. Patients & methods: A PPK model was developed from 36 patients by a one-compartment model with first-order elimination. Results: The typical value of clearance and volume of distribution were 11.0 l/h and 42.4 l, respectively. Clearance decreased by 15% and area under the concentration-time curves (AUCs) increased with GSTA1 variants compared with wild-type (both p < 0.05). Subtherapeutic AUCs were seen only in wild-type patients. Conclusion: To our knowledge, this is the first PPK study to suggest that GSTA1 polymorphisms in adults are associated with busulfan PK.

Publisher

Future Medicine Ltd

Subject

Pharmacology,Genetics,Molecular Medicine

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