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Trial registered on ANZCTR
Registration number
ACTRN12619000130167p
Ethics application status
Submitted, not yet approved
Date submitted
17/01/2019
Date registered
29/01/2019
Date last updated
13/03/2019
Date data sharing statement initially provided
29/01/2019
Type of registration
Prospectively registered
Titles & IDs
Public title
Effectiveness of A Fast Track Giant Cell Arteritis Clinic in Western Australia
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Scientific title
Clinical and cost effectiveness of a Fast Track Giant Cell Arteritis (GCA) Clinic in Western Australia compared with standard management of patients clinically suspected to have GCA
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Secondary ID [1]
297049
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Nil known
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Universal Trial Number (UTN)
U1111-1226-5764
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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:
Giant Cell Arteritis
311040
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Condition category
Condition code
Inflammatory and Immune System
309684
309684
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0
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Other inflammatory or immune system disorders
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Cardiovascular
309898
309898
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0
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Diseases of the vasculature and circulation including the lymphatic system
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Eye
309899
309899
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0
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Diseases / disorders of the eye
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
This study aims to assess the effectiveness of a Fast Track Giant Cell Arteritis (GCA) Clinic in Western Australia, in terms of both health outcomes for patients and healthcare cost savings. Patients suspected of having GCA will be seen in the Fast Track Clinic (FTC) within approximately 72 hours of referral. The FTC will initially service the East and South Metropolitan Health Services of Western Australia. Patients will be assessed by a consultant rheumatologist during an approximately 60 minute clinic appointment. This will include history, physical examination, questionnaires, blood tests, and ultrasound of the temporal, occipital, axillary +/- carotid arteries. Ultrasound is expected to take between 15 - 30 minutes depending on operator. All patients will then be seen by ophthalmology within one week for bilateral temporal artery biopsy. Full ophthalmological assessment will be performed more urgently if visual symptoms are present. The overall aim is to assess validity of ultrasound in replacing biopsy as the primary diagnostic investigation in GCA. If this approach is proven valid, costs will be deducted accordingly to demonstrate health care savings if biopsy were not routinely required. PET scan will also be organised for a subgroup of patients to assess burden of vasculitis at baseline and explore the relationship between GCA and cardiovascular events. Patients with confirmed GCA will be commenced or continued on treatment with corticosteroids as per the Australian Therapeutic Guidelines. There will be repeat appointments at the Fast Track Clinic at week 2, week 4, week 12, and week 24. At these visits, assessment will again include history, physical examination, ultrasound, blood tests, and questionnaires for patient reported outcomes. Repeat PET scan will be arranged at the 24 week appointment for the PET subgroup.
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Intervention code [1]
313325
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Treatment: Other
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Comparator / control treatment
Analysis of 12 months of retrospective data (pre-intervention) from the same health services will be used as the comparator. Usual management for the presumed diagnosis of GCA may include an inpatient stay, temporal artery biopsy, corticosteroid therapy, and referral to ophthalmology. Data including clinical parameters (inflammatory markers, time to diagnosis, rate of complications) as well as associated costs will be collected and compared to that of the Fast Track Clinic.
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Control group
Historical
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Outcomes
Primary outcome [1]
318657
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The Fast Track GCA Clinic data will be analysed in comparison to retrospective pre-intervention data to assess cost difference to the state healthcare system (Western Australian Department Of Health) within 12 months. This includes costs (in AUD) incurred from inpatient bed stays, readmissions, temporal artery biopsies and stay extending complications.
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Assessment method [1]
318657
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Timepoint [1]
318657
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12 months post intervention commencement
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Secondary outcome [1]
365599
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The Fast Track GCA Clinic data will be analysed to compare clinical parameters with the restrospective control group, including: time to diagnosis of GCA (days from referral).
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Assessment method [1]
365599
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Timepoint [1]
365599
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12 months post intervention commencement
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Secondary outcome [2]
365600
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The Fast Track GCA Clinic data will be analysed to compare clinical parameters with the retrospective group, including: time to normalisation of inflammatory markers (CRP < 5 mg/L, ESR < 20 mm/hr)
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Assessment method [2]
365600
0
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Timepoint [2]
365600
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12 months post intervention commencement
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Secondary outcome [3]
366219
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The Fast Track GCA Clinic data will be analysed to compare clinical parameters with the pre-intervention group, including frequency of visual loss (%)
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Assessment method [3]
366219
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Timepoint [3]
366219
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12 months post intervention commencement
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Secondary outcome [4]
366220
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The Fast Track GCA Clinic data will be analysed to compare diagnostic certainty based on temporal artery ultrasound with temporal artery biopsy results. If proven to be diagnostically valid (equal or superior to temporal artery biopsy), the cost of temporal artery biopsy will be deducted from overall clinic costs to demonstrate cost reductions using temporal artery ultrasound without biopsy in the future.
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Assessment method [4]
366220
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Timepoint [4]
366220
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12 months post intervention commencement
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Eligibility
Key inclusion criteria
Clinical suspicion of giant cell arteritis, including but not limited to: new onset headaches / localised pain in the head, scalp tenderness, swelling over the temporal artery, pain over the temporal artery, jaw claudication, tongue claudication, reduced or lost vision, double vision and amaurosis fugax, anorexia, fatigue, fever/night sweats,
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Minimum age
50
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
Age under 50 years
Unable to provide informed consent
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Not applicable
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Not applicable
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Masking / blinding
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Who is / are masked / blinded?
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Intervention assignment
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Other design features
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Phase
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
1/05/2019
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Actual
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Date of last participant enrolment
Anticipated
30/04/2020
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Actual
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Date of last data collection
Anticipated
31/10/2020
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Actual
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Sample size
Target
100
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
WA
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Recruitment hospital [1]
12869
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Royal Perth Hospital - Perth
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Recruitment hospital [2]
12870
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Fiona Stanley Hospital - Murdoch
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Recruitment postcode(s) [1]
25344
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6000 - Perth
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Recruitment postcode(s) [2]
25345
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6150 - Murdoch
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Funding & Sponsors
Funding source category [1]
301618
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Government body
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Name [1]
301618
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Department of Health Western Australia
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Address [1]
301618
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189 Royal St, Perth WA 6004
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Country [1]
301618
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Australia
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Funding source category [2]
301623
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Other Collaborative groups
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Name [2]
301623
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Goatcher Clinical Research Unit
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Address [2]
301623
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MRF
Rear 55 Murray Street
Perth WA
6000
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Country [2]
301623
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Australia
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Primary sponsor type
Hospital
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Name
Royal Perth Hospital
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Address
Murray Street
Perth WA
6000
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Country
Australia
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Secondary sponsor category [1]
301321
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None
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Name [1]
301321
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Address [1]
301321
0
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Country [1]
301321
0
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Ethics approval
Ethics application status
Submitted, not yet approved
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Ethics committee name [1]
302344
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Royal Perth Hospital Human Research Committee
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Ethics committee address [1]
302344
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Level 2, Kirkman House
Royal Perth Hospital
10 Murray Street, Perth
Western Australia 6000
AUSTRALIA
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Ethics committee country [1]
302344
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Australia
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Date submitted for ethics approval [1]
302344
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30/01/2019
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Approval date [1]
302344
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Ethics approval number [1]
302344
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Summary
Brief summary
Giant Cell Arteritis (GCA) is a condition of inflammation of blood vessels which commonly affects the blood supply to the eyes. Left undetected, GCA can rapidly cause irreversible blindness. Other potential complications include stroke, aortic dissection and death. Therefore, early diagnosis and intervention is imperative.
Traditionally, diagnosis has relied on early suspicion of the disease, urgent review by a physician and an ophthalmologist, along with a surgical procedure (temporal artery biopsy). Following diagnosis of the disease, prompt treatment with potent immune suppressant medication is required.
Biopsies are a relatively expensive procedure with a low positive yield. Additionally, biopsies can often take weeks to organise, but treatment needs to be given relatively urgently, so delay in obtaining biopsy means that diagnosis can be obscured by the treatment. Better ways of screening and managing patients are needed.
Recently, international models of care have recommended an alternative approach to deliver assessment and care for GCA through “Fast Track” GCA Clinics, which have demonstrated improved outcomes for patients. These are collaborative clinics between rheumatologists and ophthalmologists that provide clinical review followed by assessment using ultrasound imaging of the arteries instead of biopsy. This approach avoids hospital admission but produces quick, accessible and reliable diagnostic yield and only a subgroup will require progression to biopsy.
Fast Track GCA Clinics have not yet been implemented in the Australian health care setting. We aim to establish a collaborative Fast Track GCA Clinic in Western Australia and demonstrate direct health care savings, validity of ultrasound at the primary diagnostic tool over temporal artery biopsy, improved clinical outcomes for patients, and further the research agenda in this relatively common, potentially devastating, but treatable condition.
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Trial website
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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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Dr Julia Murdoch
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Address
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Fiona Stanley Hospital, 11 Robin Warren Dr, Murdoch WA 6150
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Country
89898
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Australia
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Phone
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+61 861522222
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Fax
89898
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Email
89898
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[email protected]
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Contact person for public queries
Name
89899
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Dr Julia Murdoch
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Address
89899
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Fiona Stanley Hospital, 11 Robin Warren Dr, Murdoch WA 6150
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Country
89899
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Australia
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Phone
89899
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+61 861522222
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Fax
89899
0
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Email
89899
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[email protected]
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Contact person for scientific queries
Name
89900
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Dr Julia Murdoch
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Address
89900
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Fiona Stanley Hospital, 11 Robin Warren Dr, Murdoch WA 6150
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Country
89900
0
Australia
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Phone
89900
0
+61 861522222
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Fax
89900
0
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Email
89900
0
[email protected]
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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
Decision may be changed as trial progresses.
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What supporting documents are/will be available?
No Supporting Document Provided
Current supporting documents:
Updated to:
Doc. No.
Type
Citation
Link
Email
Other Details
Attachment
23711
Study protocol
[email protected]
23712
Ethical approval
[email protected]
23713
Ethical approval
[email protected]
Results publications and other study-related documents
Documents added manually
Current Study Results
No documents have been uploaded by study researchers.
Update to Study Results
Doc. No.
Type
Is Peer Reviewed?
DOI
Citations or Other Details
Attachment
4742
Other files
No
Murdoch J, Tedja C, Taylor A, DeSousa J, Francis R...
[
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]
4743
Conference abstract
No
Murdoch J, Taylor A, DeSousa J, Jao K, Keen H. 12-...
[
More Details
]
4744
Study results article
Yes
Mathake M, Murdoch J, DeSousa JL, Taylor A, Keen H...
[
More Details
]
Documents added automatically
No additional documents have been identified.
Download to PDF