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Comparison of Epithelial Lining Fluid and Blood Pharmacokinetics and Pharmacodynamics of Intravenous and Intravenous Plus Nebulized Polymyxin B in Multidrug Resistant Bacteria Ventilator-associated Pneumonia Patients

Ventilator-associated Pneumonia Clinical Trial

Official title:
Comparison of Epithelial Lining Fluid and Blood Pharmacokinetics and Pharmacodynamics of Intravenous and Intravenous Plus Nebulized Polymyxin B in Multidrug Resistant Bacteria Ventilator-associated Pneumonia Patients

Clinical Trial Summary

The goal of this observational study is to investigate whether intravenous polymyxin B combined with nebulisation achieves better antimicrobial efficacy and clinical outcomes than intravenous use alone in patients with multidrug-resistant gram-negative bacilli infected with ventilator-associated pneumonia. The main questions it aims to answer are: - When using intravenous polymyxin B to treat patients with ventilator-associated pneumonia caused by multidrug-resistant bacteria in clinical practice, is it necessary to assist with polymyxin B nebulization therapy？ - If necessary, how much dose of nebulization is better? Participants will be divided into two groups based on whether they have received nebulization treatment with polymyxin B in clinical practice. Blood and alveolar lavage fluid samples will be collected after the first dose injection and reaching the steady-state dose, and the drug concentration differences in blood and ELF will be measured in patients who have received intravenous injection of polymyxin B alone and those who have received adjuvant nebulization of polymyxin B, as well as differences in clinical outcomes and side effects. Researchers will compare the differences in blood and ELF drug concentrations, clinical outcomes, and incidence of side effects between two groups of patients, to see if is it necessary to assist with polymyxin B nebulization therapy in patients with multidrug-resistant gram-negative bacilli infected with ventilator-associated pneumonia.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT06076603
Study type Observational
Source Southeast University, China
Contact Yingzi Huang, MD
Phone +86-025-83262552
Email yz_huang@126.com
Status Recruiting
Phase
Start date July 1, 2023
Completion date August 1, 2024
View Details
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