Trial Review

The ANZCTR website is back online for trial registration and updates. We apologise for any inconvenience caused while the site was inactive.


With activity expected to increase on the ANZCTR again, there may be extended wait times while we process pending studies, with priority being given to those trials submitted in February. Thank you for your patience.


Reset your password and enable multi-factor authentication (MFA)


For ANZCTR account holders: to help ensure the cyber safety of your account, you’ll need to reset your password and set-up multi-factor authentication (MFA) as per the instructions below.


  1. Go to the Login page, click ‘reset password’ and follow the instructions.
  2. Check your email for the link to set a new password.
  3. Create a new password that meets requirements.
  4. Return to the Login page and enter your new password. A verification code will be sent to your email.
  5. Check your email for the code and enter it on the Login page. If the code is entered incorrectly, you can re-enter the correct one or request a new one.

Learn more about MFA and its importance on the Australian Signals Directorate website.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial registered on ANZCTR


Registration number
ACTRN12619000959178
Ethics application status
Approved
Date submitted
5/06/2019
Date registered
8/07/2019
Date last updated
22/12/2021
Date data sharing statement initially provided
8/07/2019
Type of registration
Prospectively registered

Titles & IDs
Public title
Effect of probenecid on the pharmacokinetics of cefalexin in children
Scientific title
Effect of probenecid on the pharmacokinetics of cefalexin in children
Secondary ID [1] 298387 0
none
Universal Trial Number (UTN)
U1111-1234-5057
Trial acronym
CHOC-Dip: Children on cefalexin, dose interval with probenecid
Linked study record

Health condition
Health condition(s) or problem(s) studied:
antibiotic pharmacokinetics 313073 0
Condition category
Condition code
Infection 311560 311560 0 0
Other infectious diseases

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
A single dose of probenecid 10 mg/kg (maximum of 500 mg) orally followed by cefalexin 35 mg/kg (maximum of 1g) orally administered thirty minutes later
Intervention code [1] 314630 0
Treatment: Drugs
Comparator / control treatment
no control group
Control group
Uncontrolled

Outcomes
Primary outcome [1] 320269 0
Total serum cefalexin and probenecid concentrations will be determined using mass spectrometry, Pharmacokinetic parameters to be assessed for each patient are area under the concentration-time curve (AUC) from 0 – 8 h (AUC0-8) and elimination half-life (t1/2)
Timepoint [1] 320269 0
tests at baseline, 30minutes, 1 hour, 90 minutes, 2 hours, 4 hours, 6 hours and 8 hours
Secondary outcome [1] 371229 0
Side effects (e.g., nausea, rash, headache), allergic reaction measured by direct questioning and direct observation by lead investigator
Timepoint [1] 371229 0
continously for eight hours

Eligibility
Key inclusion criteria
Male and female children aged 2-12 years
under the care of the paediatric department at Christchurch hospital
prescribed cefalexin as oral follow-on to iv treatment for osteomyelitis, septic arthritis or other serious infection
have an iv line in place (most likely a PICC line) for blood sampling
receiving no other regular medicines likely to interact with either probenecid or cefalexin
Minimum age
2 Years
Maximum age
12 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
children for whom the blood volumes required poses above-minimal risk due to concurrent medical conditions such as anaemia (physician discretion)
contraindication to probenecid eg. hypersensitivity or disorders of uric acid metabolism
contraindication to cefalexin eg. hypersensitivity
taking methotrexate (if treatment is not interrupted while the infection is being treated)
history of significant renal or hepatic disease, or current significant abnormalities in renal or liver function tests.
Children with Cystic Fibrosis

Study design
Purpose of the study
Treatment
Allocation to intervention
Non-randomised trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Single group
Other design features
open-label, non-randomised, single arm pharmacokinetics study
Phase
Phase 1
Type of endpoint/s
Pharmacokinetics
Statistical methods / analysis
pharmacokinetic data will be analysed using proprietary software

Recruitment
Recruitment status
Suspended
Date of first participant enrolment
Anticipated
15/07/2019
Actual
21/02/2020
Date of last participant enrolment
Anticipated
1/07/2021
Actual
21/02/2020
Date of last data collection
Anticipated
1/08/2021
Actual
21/02/2020
Sample size
Target
18
Accrual to date
1
Final
Recruitment outside Australia
Country [1] 21547 0
New Zealand
State/province [1] 21547 0
Christchurch

Funding & Sponsors
Funding source category [1] 302928 0
Charities/Societies/Foundations
Name [1] 302928 0
Cure kids
Country [1] 302928 0
New Zealand
Primary sponsor type
Individual
Name
A/Prof Tony Walls
Address
University of Otago
Christchurch School of Medicine
PO Box 4345
Christchurch 8140
Country
New Zealand
Secondary sponsor category [1] 302889 0
Individual
Name [1] 302889 0
Dr Claire Vivian
Address [1] 302889 0
Department of Child Health Christchurch Hospital Riccarton Ave Christchurch 8140
Country [1] 302889 0
New Zealand
Other collaborator category [1] 280721 0
Individual
Name [1] 280721 0
Professor Steve Chambers, Infectious Diseases Specialist
Address [1] 280721 0
Department of Infectious Diseases Christchurch Hospital Private Bag 4710 Christchurch 8140
Country [1] 280721 0
New Zealand
Other collaborator category [2] 280722 0
Individual
Name [2] 280722 0
A/Prof David Reith, Paediatric pharmacologist
Address [2] 280722 0
Office of the Dean Great King Street Dunedin School of Medicine University of Otago 9016
Country [2] 280722 0
New Zealand
Other collaborator category [3] 280723 0
Individual
Name [3] 280723 0
Dr Sharon Gardiner, Antimicrobial pharmacist
Address [3] 280723 0
Dept infectious diseases Christchurch Hospital, Private Bag 4710 Christchurch 8140
Country [3] 280723 0
New Zealand

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 303492 0
NZ Health and Disability Ethics Committee
Ethics committee address [1] 303492 0
Ethics committee country [1] 303492 0
New Zealand
Date submitted for ethics approval [1] 303492 0
27/06/2019
Approval date [1] 303492 0
16/10/2019
Ethics approval number [1] 303492 0
NZ Northern A Health and Disability Ethics Committee: 19/NTA/97

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 93846 0
A/Prof Tony Walls
Address 93846 0
University of Otago Christchurch School of Medicine PO Box 4345 Christchurch 8140
Country 93846 0
New Zealand
Phone 93846 0
+64 27 262 9968
Fax 93846 0
Email 93846 0
[email protected]
Contact person for public queries
Name 93847 0
Tony Walls
Address 93847 0
University of Otago Christchurch School of Medicine PO Box 4345 Christchurch 8140
Country 93847 0
New Zealand
Phone 93847 0
+64 27 262 9968
Fax 93847 0
Email 93847 0
[email protected]
Contact person for scientific queries
Name 93848 0
Tony Walls
Address 93848 0
University of Otago Christchurch School of Medicine PO Box 4345 Christchurch 8140
Country 93848 0
New Zealand
Phone 93848 0
+64 27 262 9968
Fax 93848 0
Email 93848 0
[email protected]

Data sharing statement
Will the study consider sharing individual participant data?
Yes
Will there be any conditions when requesting access to individual participant data?
Persons/groups eligible to request access:
• researchers who provide a methodologically sound proposal and on case-by-case basis at the discretion of Primary Sponsor

Conditions for requesting access:
• -

What individual participant data might be shared?
• PK data

What types of analyses could be done with individual participant data?
• meta-analyses and on a case by case basis

When can requests for individual participant data be made (start and end dates)?
From:
Immediately following publication, no end date

To:
-

Where can requests to access individual participant data be made, or data be obtained directly?
• access subject to approvals by Principal Investigator

Are there extra considerations when requesting access to individual participant data?
No


What supporting documents are/will be available?

Doc. No.TypeCitationLinkEmailOther DetailsAttachment
14524Study protocol  [email protected]
14525Ethical approval    Study-related document.pdf



Results publications and other study-related documents

Documents added manually
No documents have been uploaded by study researchers.

Documents added automatically
No additional documents have been identified.