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Trial registered on ANZCTR
Registration number
ACTRN12617000170325
Ethics application status
Approved
Date submitted
27/12/2016
Date registered
1/02/2017
Date last updated
15/09/2020
Date data sharing statement initially provided
8/01/2019
Type of registration
Prospectively registered
Titles & IDs
Public title
T-BIRD: Tissue Biomechanics and Inflammation in the Rheumatic Diseases
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Scientific title
T-BIRD: Tissue Biomechanics and Inflammation in the Rheumatic Diseases
The Relationship Between Articular, Cutaneous and Vascular Biomechanical Properties, The Risk of Developing and the Severity of the Arthritis and Cardiovascular Disease Occurring in Rheumatoid and Psoriatic Arthritis – A Preliminary Study
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Secondary ID [1]
290809
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None
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Universal Trial Number (UTN)
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Trial acronym
T-BIRD
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Rheumatoid Arthritis
301461
0
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Psoriatic Arthritis
301462
0
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Benign Joint Hypermobility
301463
0
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Cardiovascular Disease
301464
0
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Condition category
Condition code
Musculoskeletal
301182
301182
0
0
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Other muscular and skeletal disorders
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Cardiovascular
301183
301183
0
0
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Diseases of the vasculature and circulation including the lymphatic system
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Inflammatory and Immune System
301238
301238
0
0
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Rheumatoid arthritis
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Intervention/exposure
Study type
Observational
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Patient registry
False
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Assessments of the elasticity / stiffness of the joints, skin and arteries.
1. Participants will answer a simple 5-point questionnaire asking questions about the mobility of their joints.
2. An assessor will painlessly assess the range of motion of the joints of the finger joints, wrists, elbows, knees and spine.
3. The flexibility of the right 5th finger will be formally tested in a device that stretches the finger backwards using specific forces (torques).
4. The skin elasticity will be evaluated first by drawing two dots 10 mm apart on th dorm of the right hand and measuring how far they can be stretched apart by the examiner.
5. The skin elasticity of the solar aspect of the right forearm will be measured as the volume of skin/tissue that can be drawn into the barrel of a 50mL syringe (plunger removed) in response to specific negative pressures.
6. The thickness of the skin will be measured at both sites using a pair of Harpenden skin fold callipers.
7. Arterial stiffest will be firstly measured as carotid-femoral pulse wave velocity (the delay between the the carotid and femoral pulses measured using a pressure transducer applied to the carotid and an inflatable cuff around the thigh. Carotid-Femoral Pulse Wave Velocity will be repeated on a second occasion 1 day - 4 weeks of the first assessment. Then endothelial fiction, the ability to dilate, will be measured as the strength of the pulses in the finger tips after a 5 minute period of complete occlusion of blood flow to the left arm using an inflatable cuff.
Assessment of the severity of arthritis (in the rheumatoid arthritis and psoriatic arthritis groups)
1. Severity of arthritis will be evaluated as the number of tender and swollen joints, blood tests for inflammation (ESR, CRP) (to determine how well arthritis is controlled) and
2. The strength of treatment required to achieve this control (what drugs the participant is receiving).
These assessments will be conducted over two visits. The majority of the assessments can be completed on the first visit. Upon the second visit carotid-femora pulse wave velocity will be measured a second time and any assessments not already conducted on the first occasion will be completed on the second occasion.
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Intervention code [1]
296732
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Not applicable
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Comparator / control treatment
Two Control Groups will be evaluated using all the same assessments as those conducted upon the Case Groups (outlined in 'Description of intervention' field.)
1. Healthy Controls
2. Benign joint hypermobiity
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Control group
Active
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Outcomes
Primary outcome [1]
300599
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A specially designed device constructed from Meccano will be used to measure angular displacement of 5th finger metacarpophalangeal joint in response to torque applied to extend the finger. The right hand is strapped into the device positioned such that the 5th finger MCP can be extended by rotation of a lever arm attached to a pulley through which forces can be applied to generate a range of torques to extend the finger.
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Assessment method [1]
300599
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Timepoint [1]
300599
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Baseline (cross-sectional study)
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Primary outcome [2]
300600
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Endothelial Function (Peripheral Arterial Tonometry) - EndoPAT Device
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Assessment method [2]
300600
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Timepoint [2]
300600
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Baseline (Cross-sectional Study)
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Primary outcome [3]
300601
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Skin Elasticity (Syringe Test) - Volume Displacement in Response to Negative Pressure (suction force) applied to dominant forearm.
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Assessment method [3]
300601
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Timepoint [3]
300601
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Baseline (cross-sectional study)
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Secondary outcome [1]
330390
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Clinical Skin Extensibility Scores (CSES)
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Assessment method [1]
330390
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Timepoint [1]
330390
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Baseline (cross-sectional study)
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Secondary outcome [2]
330391
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Aortic stiffness (Carotid-Femoral Pulse Wave Velocity)
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Assessment method [2]
330391
0
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Timepoint [2]
330391
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Baseline (cross-sectional study)
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Secondary outcome [3]
330392
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Beighton Score for Articular Hypermobility
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Assessment method [3]
330392
0
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Timepoint [3]
330392
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Baseline (cross-sectional study)
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Secondary outcome [4]
330393
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Beighton Questionnaire for Articular Hypermobility
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Assessment method [4]
330393
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Timepoint [4]
330393
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Baseline (cross-sectional study)
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Secondary outcome [5]
330394
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Radiographic Damage (Sharpe Scores) in Rheumatoid and Psoriatic Arthritis Groups
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Assessment method [5]
330394
0
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Timepoint [5]
330394
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Baseline (cross-sectional study)
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Secondary outcome [6]
330395
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Severity of Arthritis based upon Treatment Requirements and Disease Activity (Rheumatoid and Psoriatic Arthritis Groups)
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Assessment method [6]
330395
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Timepoint [6]
330395
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Baseline (cross-sectional study)
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Secondary outcome [7]
330396
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PASI (Psoriasis Area and Severity Index) Score in Psoriasis and Psoriatic Arthritis Groups
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Assessment method [7]
330396
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Timepoint [7]
330396
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Baseline (cross-sectional study)
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Secondary outcome [8]
331155
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The Syringe Test for skin elasticity will be further evaluated in a sub-study entitled the Syringe Test Sub-Study.
In this study the Syringe test will be performed in 10 participants at two time points before and 3 months after commencing treatment with corticosteroids to determine whether corticosteroids influence the assessment. Study participants will include patients receiving high dose corticosteroids for any indication that does not affect the skin.
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Assessment method [8]
331155
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Timepoint [8]
331155
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Prior to commencement of corticosteriod treatment and 3 months post commencement of corticosteroid treatment.
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Secondary outcome [9]
331156
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Skin fold thickness dorm right hand and solar aspect right forearm.
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Assessment method [9]
331156
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Timepoint [9]
331156
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Baseline
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Eligibility
Key inclusion criteria
Main Study
Case Groups
1. ACPA-positive Rheumatoid Arthritis (RA);
2. People at risk of developing ACPA-positive RA;
a. First Degree Relatives of people with ACPA-Positive RA;
b. People with a positive ACPA blood test who do not have RA;
3. Psoriatic Arthritis (PsA)
4. Cutaneous Psoriasis without psoriatic arthritis
Control Groups
1. Healthy Controls Unrelated to people with RA ;
2. Benign Joint Hypermobility (BJH)
Syringe Test Sub-Study
1. Any medical condition requiring corticosteroid therapy that does not affect the skin (e.g. giant cell arteritis, asthma, interstitial lung disease or systemic vasculitis).
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Minimum age
18
Years
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Maximum age
80
Years
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Main Study
Syringe Test Sub-Study
Conditions affecting the skin such as psoriasis, Systemic Lupus Erythematosus, scleroderma or high alcohol intake;
Case or Control groups for the study – RA, PsA, psoriasis, Joint Hypermobility;
Prior corticosteroid exposure.
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Study design
Purpose
Natural history
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Duration
Cross-sectional
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Selection
Case control
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Timing
Both
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Statistical methods / analysis
Correlation of assessments of articular, arterial and cutaneous stiffness. Methods to be determined by data (normal / skewed / dichotomous)
Comparison of assessments of articular, arterial and cutaneous stiffness between study groups. Methods to be determined by data (normal / skewed / dichotomous)
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Recruitment
Recruitment status
Recruiting
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Date of first participant enrolment
Anticipated
10/02/2017
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Actual
22/02/2017
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Date of last participant enrolment
Anticipated
22/05/2021
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Actual
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Date of last data collection
Anticipated
22/05/2021
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Actual
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Sample size
Target
375
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Accrual to date
92
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Final
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Recruitment in Australia
Recruitment state(s)
NSW
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Recruitment hospital [1]
7178
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John Hunter Hospital - New Lambton
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Recruitment postcode(s) [1]
14939
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2305 - New Lambton
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Funding & Sponsors
Funding source category [1]
295234
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Hospital
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Name [1]
295234
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John Hunter Hospital
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Address [1]
295234
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Rheumatology Department
John Hunter Hospital
Lookout Rd
New Lambton
NSW 2305
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Country [1]
295234
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Australia
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Primary sponsor type
Individual
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Name
Dr Stephen Oakley
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Address
Rheumatology Department
John Hunter Hospital
Lookout Rd
New Lambton
NSW 2305
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Country
Australia
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Secondary sponsor category [1]
294062
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None
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Name [1]
294062
0
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Address [1]
294062
0
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Country [1]
294062
0
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
296576
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Hunter New England Research Ethics Committee
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Ethics committee address [1]
296576
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Dr Nicole Gerrand Executive Officer Hunter New England Human Research Ethics Committee Locked Bag No. 1 New Lambton NSW 2305
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Ethics committee country [1]
296576
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Australia
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Date submitted for ethics approval [1]
296576
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14/12/2016
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Approval date [1]
296576
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08/02/2017
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Ethics approval number [1]
296576
0
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Summary
Brief summary
The currently accepted paradigm holds that systemic autoimmunity and inflammation have a directly causal relationship with rheumatoid arthritis (RA) and psoriatic arthritis (PsA) and with the associated cardiovascular (CV) disease. However, the evidence supporting this paradigm is inconclusive and possibly contradicted but clinical studies. The T-BIRD study inverts the existing paradigm to explore the hypothesis that while autoimmunity sets the stage for the development of arthritis, it is the connective tissue biomechanical properties (stiffness) that: 1. Determine the risk of developing RA and PsA 2. Influence the severity of the RA and PsA and; 3. Determine the severity of the CV disease seen in association with RA and PsA . If this hypothesis is confirmed then a considerable part of the inheritance of RA and PsA (much of which remains unaccounted for) might be explained. There would also be important clinical implications as it would change the way clinicians undertake risk assessment and therapeutic decisions in managing inflammatory arthritis and its associated cardiovascular disease. This preliminary study will begin exploring this hypothesis by evaluating the relationship between articular biomechanical characteristics in the joints, skin and arteries and exploring the relationships between tissue biomechanical properties upon rheumatoid and psoriatic arthritis and vascular and cutaneous disease.
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Trial website
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Trial related presentations / publications
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Public notes
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Attachments [1]
1345
1345
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0
/AnzctrAttachments/372073-T-BIRD_Protocol_Version 1.1.pdf
(Protocol)
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Contacts
Principal investigator
Name
71350
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A/Prof Stephen Oakley
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Address
71350
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Department of Rheumatology
John Hunter Hospital
Lookout Rd
New Lambton
NSW 2305
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Country
71350
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Australia
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Phone
71350
0
+61 249 223 500
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Fax
71350
0
+61 249 223 562
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Email
71350
0
[email protected]
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Contact person for public queries
Name
71351
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Stephen Oakley
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Address
71351
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Department of Rheumatology
John Hunter Hospital
Lookout Rd
New Lambton
NSW 2305
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Country
71351
0
Australia
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Phone
71351
0
+61 249 223 500
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Fax
71351
0
+61 249 223 562
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Email
71351
0
[email protected]
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Contact person for scientific queries
Name
71352
0
Stephen Oakley
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Address
71352
0
Department of Rheumatology
John Hunter Hospital
Lookout Rd
New Lambton
NSW 2305
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Country
71352
0
Australia
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Phone
71352
0
+61 249 223 500
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Fax
71352
0
+61 249 223 562
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Email
71352
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
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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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