Severe Sepsis Clinical Trial
Official title:
Clinical Study on Monitoring the Plasma Concentration of Ceftazidime-Avibactam in Critically Ill Patients
A observational study is conducting at the First Affiliated Hospital of the Medical College of Zhejiang University from January 1, 2022 to January 1, 2024. Patients with severe sepsis and treatment with Ceftazidime-Avibactam will be enrolled. Blood samples at different timepoints: 0 hour, 2 hours, 4 hours, 6 hours, and 8 hours after the first time and the steady state concentration(more than 4 times drug administration) of drug administration will be collected to detect plasma drug concentrations of ceftazidime avibactam.
The investigators will collect the blood samples at different timepoints: 0 hour, 2 hours, 4 hours, 6 hours, and 8 hours after the first time and the steady state concentration(more than 4 times drug administration) of drug administration from the patients receive treatment with Ceftazidime-Avibactam to detect plasma drug concentrations of ceftazidime avibactam. The collected specimens will be stored in a refrigerator at 0-8 °C, centrifuges within 24 hours (4 °C, 4000 r/min, 10 min), and the supernatant will be collected in an EP tube and stored at -80°C until subsequent analysis. Ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS/MS) will be used to detect plasma drug concentrations of ceftazidime avibactam. According to the outcomes ,the investigators will analyze the following items,(1)T>MIC,(2)Cmax/MIC,(3)AUC/MIC,(4)population pharmacokinetics. ;
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