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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT03309657
Registration number
NCT03309657
Ethics application status
Date submitted
30/07/2017
Date registered
13/10/2017
Titles & IDs
Public title
Pharmacokinetics of Ceftolozane/Tazobactam in Plasma and Cerebrospinal Fluid
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Scientific title
A Prospective Pharmacokinetic Evaluation of the Plasma and Cerebrospinal Fluid Concentrations of a Single Dose Ceftolozane/Tazobactam in Infected Critically Ill Patients With an Indwelling External Ventricular Drain
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Secondary ID [1]
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HREC/17/QRBW/117
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Pharmacokinetics
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Condition category
Condition code
Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - Ceftolozane/tazobactam
Experimental: Ceftolozane Tazobactam - Infected patients with external intraventricular drain will receive a single dose of Ceftolozane/ tazobactam (3000mg) over 1 hour and will undergo blood , csf and urine sampling at specific times over an 8 hour period.
Treatment: Drugs: Ceftolozane/tazobactam
This is an observational pharmacokinetic study whereby patients received a single dose of ceftolozane/tazobactam and plasma and cerebrospinal fluid samples were subsequently collected and analyzed to described the pharmacokinetics.
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Unbound Ceftolozane Exposure in the Plasma
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Assessment method [1]
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Unbound Ceftolozane Exposure in the plasma given by the area under the unbound concentration-time curve from time zero to infinity (AUC0-inf).
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Timepoint [1]
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Samples collected from 0 to 8 hours post dose at "0, 1, 2,4,6, & 8 h post dose were use estimate area under the curve from time zero to infinity estimated by non-compartmental analysis
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Primary outcome [2]
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Unbound Tazobactam Exposure in the Plasma
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Assessment method [2]
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Unbound Tazobactam Exposure in the plasma given by the area under the unbound concentration-time curve from time zero to infinity (AUC0-inf).
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Timepoint [2]
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Samples collected from 0 to 8 hours post dose at "0, 1, 2,4,6, & 8 h post dose were use estimate area under the curve from time zero to infinity estimated by non-compartmental analysis
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Primary outcome [3]
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Unbound Ceftolozane Exposure in the CSF
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Assessment method [3]
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Unbound Ceftolozane Exposure in the CSF given by the area under the unbound concentration-time curve from time zero to infinity (AUC0-inf).
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Timepoint [3]
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Samples collected from 0 to 8 hours post dose at "0, 1, 2,4,6, & 8 h post dose were use estimate area under the curve from time zero to infinity estimated by non-compartmental analysis
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Primary outcome [4]
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Unbound Tazobactam Exposure in the CSF
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Assessment method [4]
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Unbound Tazobactam Exposure in the CSF given by the area under the unbound concentration-time curve from time zero to infinity (AUC0-inf).
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Timepoint [4]
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Samples collected from 0 to 8 hours post dose at "0, 1, 2,4,6, & 8 h post dose were use estimate area under the curve from time zero to infinity estimated by non-compartmental analysis
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Eligibility
Key inclusion criteria
Patients with any infection requiring treatment with ceftolozane/tazobactam and who have met the following criteria:
* Age >18 years
* The presence of an indwelling external ventricular drain (EVD) or requiring EVD insertion due to obstructive hydrocephalus/subarachnoid haemorrhage
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* Known or suspected allergy to penicillins and cephalosporins
* Pregnancy
* Receiving renal replacement therapy
* Glomerular filtration rate less than 10 mL/min
* Receiving piperacillin/tazobactam or having received piperacillin/tazobactam in the past 7 days before enrolment
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Study design
Purpose of the study
Other
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Allocation to intervention
NA
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
Phase 1
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/02/2018
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/06/2020
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Sample size
Target
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Accrual to date
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Final
10
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Recruitment in Australia
Recruitment state(s)
QLD
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Recruitment hospital [1]
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Royal Brisbane and Women's Hospital - Brisbane
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Recruitment postcode(s) [1]
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4029 - Brisbane
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Funding & Sponsors
Primary sponsor type
Government body
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Name
Royal Brisbane and Women's Hospital
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Address
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Country
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Other collaborator category [1]
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Other
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Name [1]
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The University of Queensland
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Address [1]
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Country [1]
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Ethics approval
Ethics application status
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Summary
Brief summary
Ceftolozane/tazobactam is an emerging newly available antibiotic that has a broad spectrum of activity, and could be potentially useful in the management of central nervous system infections. However, data relating to penetration of ceftolozane/ tazobactam into the central nervous system, where a barrier against drug distribution exists (i.e. blood brain barrier), is currently limited. In critically ill patients this is all the more challenging as achieving adequate antibiotic concentrations even in blood is difficult. The aim of this study is to describe the concentrations achieved in the cerebrospinal fluid (i.e. bodily fluid found surrounding and inside of the brain) and blood after a single dose of ceftolozane/tazobactam administered in critically ill patients with an existing external ventricular drain (i.e. a device used in neurosurgery that relieves elevated intracranial pressure in the brain). It is planned that this information gained will help develop dosing strategies that will achieve target concentrations that will successfully treat central nervous system infections in the future.
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Trial website
https://clinicaltrials.gov/study/NCT03309657
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Jason A Roberts, PhD BPharm
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Address
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Royal Brisbane and Womens Hospital
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
There is no plan to make individual participant data available to other researchers
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What supporting documents are/will be available?
No Supporting Document Provided
Type
Other Details
Attachment
Study protocol
Study Protocol and Statistical Analysis Plan
https://cdn.clinicaltrials.gov/large-docs/57/NCT03309657/Prot_SAP_000.pdf
Statistical analysis plan
Study Protocol and Statistical Analysis Plan
https://cdn.clinicaltrials.gov/large-docs/57/NCT03309657/Prot_SAP_000.pdf
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results are available at
https://clinicaltrials.gov/study/NCT03309657