Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-24 @ 6:45 PM
Ignite Modification Date:
2025-12-24 @ 6:45 PM
NCT ID:
NCT04674657
Brief Summary:
Observational study Primary Objective: To study whether ECMO alters the PK of anti-infectives including voriconazole, posaconazole and caspofungin in critically ill patients on ECMO
Secondary Objectives:
Develop Population PK models of anti-infectives, including voriconazole, posaconazole and caspofungin in critically ill patients on ECMO
Develop Physiological-Based PK (PBPK) model of anti-infectives, including: voriconazole, posaconazole and caspofungin in critically ill patients on ECMO
Study population: Critically ill patients on ECMO
Methodology: Observational study to determine whether ECMO alters the PK of anti-infectives, by developing PK models
This is a non-interventional descriptive study in that the anti-infective drug selection and dosing will be at the discretion of the clinician, based on the clinical context and unit guidelines. Doses will be reconstituted and administered as per local hospital protocols in line with patient's routine care. Patients will be asked to provide additional blood samples over the course of the anti-infective dosing schedule, these samples will be taken from existing arterial lines to help guide treatment in future patients on ECMO receiving these anti-infectives.
Detailed Description:
Anti-infective drug selection and dosing will be at the discretion of the clinician, based on the clinical context and unit guidelines. Doses will be reconstituted and administered as per local hospital protocols and based on routine standard care.
Blood samples will be drawn from an existing arterial line and collected in 3 ml tubes with Lithium Heparin anticoagulant.
All patients will be sampled over a single dosing period on the second day of Extra-Corporeal Membrane Oxygenation (ECMO) treatment, or of an antibiotic course where antibiotics are commenced whilst the patient is on ECMO. Where possible, sampling during one extra dosing interval will occur on days 4-8 of ECMO treatment and/or prior to the next tubing change. Where two or more anti-infectives of interest are prescribed for one patient, collect data on timing of administration for both drugs and sample according to the antibiotic with the longer dosing interval.
Blood samples (2ml) will be collected from an existing arterial line at the following time points 0 (pre-starting infusion, pre-Nasogastric (NG)/Oral (PO) dose), 1 (end of infusion or 1hour post NG/PO dose), 2, 3, 4, 8 and either 12 (for twice daily regimen) or 24 (for once daily regimen) hours on the second day of ECMO.
Where a patient is receiving medications where a validated drug assay exists in addition to the study drug (such as other anti-infectives), analysis of the additional therapy will also be attempted where practical.
Study:
NCT04674657
Study Brief:
Protocol Section:
NCT04674657