Therapeutic Drug Monitoring and Population Pharmacokinetic Analysis of Teicoplanin among Chinese Patients with Gram-Positive Infections in a Tertiary Hospital

Background. To explore the use of teicoplanin among Chinese patients with Gram-positive infections in a tertiary hospital. Methods. The medical records of patients, who were monitored for teicoplanin plasma concentration (TPC) from December 2017 to February 2019, were collected. By combining the therapeutic drug monitoring (TDM) and nonlinear mixed-effects model, a population pharmacokinetic (PPK) model of teicoplanin was established. Results. The proportions of TPCs lower and higher than 10 mg/L were nearly the same (102 vs. 108 cases). A two-compartment model of teicoplanin PPK in Chinese patients was established. Compared with 400 mg, the 600 mg regimen was more able to reach the target concentration (10 mg/L), especially for high-weight patients. Conclusions. The standard regimen of teicoplanin, 400 mg, failed to reach the target value in the present population. Moreover, the 600 mg regimen was feasible for high-weight patients based on TDM and individualized pharmacokinetic dosing adjustment.