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Trial registered on ANZCTR
Registration number
ACTRN12609000906257
Ethics application status
Approved
Date submitted
30/07/2009
Date registered
20/10/2009
Date last updated
5/04/2019
Type of registration
Retrospectively registered
Titles & IDs
Public title
An Unblinded Randomized Study of Influenza A/H1N1 2009 ("Swine flu")Resistance to Oseltamivir and Zanamivir
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Scientific title
An Unblinded Randomized Study of Influenza A/H1N1 2009 Resistance to Oseltamivir and Zanamivir
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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:
Influenza
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Condition category
Condition code
Infection
252217
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0
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Studies of infection and infectious agents
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Patients with clinical symptoms indicative of influenza, who present within 72 h of the onset of fever during confirmed influenza activity in the community and have a positive rapid antigen test for influenza; will be randomized to receive immediate treatment with oseltamivir or zanamivir
according to standard age appropriate dose. Standard Oseltamivir and Zanamivir treatment in influenza is given as twice daily doses for 5 days.
Mode of administration:
Oseltamivir- Capsule, Suspension
Zanamivir-Inhalation
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Intervention code [1]
241330
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Treatment: Drugs
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Comparator / control treatment
Oseltamivir vs Zanamivir
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Control group
Active
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Outcomes
Primary outcome [1]
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1. Frequency of isolation of resistant virus in subjects aged 5 years or greater
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Assessment method [1]
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Timepoint [1]
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01/08/2009-31/12/2009
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Secondary outcome [1]
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1. Reductions in viral load after 5 days of treatment
2. Correlation of viral load with clinical outcome (signs and symptoms) after 5 days of treatment
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Assessment method [1]
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Timepoint [1]
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01/08/2009 to 31/12/2010
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Eligibility
Key inclusion criteria
1. The age of the patient is at least 5 years to upper limit of 50 years.
2. The patient has a positive rapid antigen test for influenza A or B and symptoms indicative of influenza that have
lasted no more than 72 hours:
a. fever 37.8 degree celsius or subjective fever and
b. at least one respiratory symptom (cough, coryza, sore throat, rhinitis)
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Minimum age
5
Years
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Maximum age
50
Years
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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
1. Suspicion of invasive bacterial infection requiring immediate admission to hospital.
2. Evidence of a poorly controlled underlying medical condition.
3. Known immunosuppression (malignancy, transplant, drugs).
4. Pregnant or lactating females
5. Known allergy to oseltamivir or zanamivir.
6. Participation in another clinical trial with an investigational drug.
7. Participant with insufficient English language skills.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Participants will be recruited based on the study inclusion and exclusion criterias. Treatment with either oseltamivir or zanamivir will be allocated randomly. Allocation is not concealed.
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Participants will be randomized using the random number tables.
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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
Parallel
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Other design features
Un-blinded randomized control trail
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Phase
Phase 4
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Type of endpoint/s
Efficacy
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Date of first participant enrolment
Anticipated
1/08/2009
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Actual
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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
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Sample size
Target
120
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
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Funding & Sponsors
Funding source category [1]
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Government body
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Name [1]
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NHMRC
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Address [1]
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Director, Research Administration Section
GPO Box 1421
CANBERRA ACT 2601
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Country [1]
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Australia
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Primary sponsor type
University
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Name
Prof Robert Booy
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Address
National Centre for Immunization Research and Surveillance (NCIRS)
The Childrens Hospital at Westmead
Locked Bag 4001
Westmead, NSW 2145
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
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Country [1]
251238
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Sydney West Area Health Service Human Research Ethics Committee(HREC) - Westmead Campus
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Ethics committee address [1]
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Research Office Westmead Hospital Rm 2020, Clinical Sciences, 2nd Floor WESTMEAD NSW 2145
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
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30/07/2009
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Approval date [1]
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Ethics approval number [1]
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EC00152
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Summary
Brief summary
The main purpose of this study is to assess the frequency of emergence of oseltamivir and zanamivir resistant influenza viruses, and their virological characteristics, in patients treated with oseltamivir and zanamivir for influenza caused by A/H1N1 2009 (‘swine flu’) and other human influenza viruses during periods of high transmission. Limited clinical information will also be collected. Patients with clinical symptoms indicative of influenza, who present within 72 h of the onset of fever during confirmed influenza activity in the community, will be randomized to receive immediate treatment with oseltamivir or zanamivir according to standard age appropriate dose. Patients will have baseline virus samples taken for typing and oseltamivir and zanamivir sensitivity and also on completion of treatment (After 5 days of treatment). Limited clinical information will also be collected.
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Trial website
Not applicable
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Trial related presentations / publications
Not yet published
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Public notes
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Contacts
Principal investigator
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 public queries
Name
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Dr Gulam Khandaker
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Address
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National Centre for Immunisation Research and Surveillance of Vaccine Preventable Diseases
Research Building
The Children's Hospital at Westmead
Cnr Hawkesbury Rd and Hainsworth St
Locked Bag 4001
WESTMEAD NSW 2145
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Country
13229
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Australia
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Phone
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+61 2 9845 1427
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Fax
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+61 2 9845 1418
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Email
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[email protected]
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Contact person for scientific queries
Name
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Prof Robert Booy
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Address
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National Centre for Immunisation Research and Surveillance of Vaccine Preventable Diseases
Research Building
The Children's Hospital at Westmead
Cnr Hawkesbury Rd and Hainsworth St
Locked Bag 4001
WESTMEAD NSW 2145
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Country
4157
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Australia
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Phone
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+61 2 9845 1415
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Fax
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+61 2 9845 1418
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Email
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
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.
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