Vesa Cheng, Mohd H Abdul-Aziz, Fay Burrows, Hergen Buscher, Young-Jae Cho, Amanda Corley, Arne Diehl, Eileen Gilder, Stephan M Jakob, Hyung-Sook Kim, Bianca J Levkovich, Sung Yoon Lim, Shay McGuinness, Rachael Parke, Vincent Pellegrino, Yok-Ai Que, Claire Reynolds, Sam Rudham, Steven C Wallis, Susan A Welch, David Zacharias, John F Fraser, Kiran Shekar, Jason A Roberts
Our study aimed to describe the population pharmacokinetics (PK) of piperacillin and tazobactam in patients on extracorporeal membrane oxygenation (ECMO), with and without renal replacement therapy (RRT). We also aimed to use dosing simulations to identify the optimal dosing strategy for these patient groups. Serial piperacillin and tazobactam plasma concentrations were measured with data analyzed using a population PK approach that included staged testing of patient and treatment covariates. Dosing simulations were conducted to identify the optimal dosing strategy that achieved piperacillin target exposures of 50% and 100% fraction of time free drug concentration is above MIC (% fT >MIC ) and toxic exposures of greater than 360 mg/liter...
October 18, 2021: Antimicrobial Agents and Chemotherapy