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DEFINITIONS
Trial Review
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Trial registered on ANZCTR
Registration number
ACTRN12606000533594
Ethics application status
Approved
Date submitted
17/12/2003
Date registered
17/12/2003
Date last updated
12/02/2018
Type of registration
Retrospectively registered
Titles & IDs
Public title
Adjuvant tamoxifen - longer against shorter
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Scientific title
Adjuvant tamoxifen longer against shorter (ATLAS) clinical trial in early breast cancer. Reliable assessment of the efficacy and safety of prolonging the use of adjuvant tamoxifen: a large, simple, randomised study.
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Secondary ID [1]
39
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National Clinical Trials Registry: NCTR438
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Secondary ID [2]
40
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European Clinical Trials Database (EUDRACT): 2004-000735-29
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Secondary ID [3]
41
0
Institute of Clinical Research: CTA 21584/0002/001
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Universal Trial Number (UTN)
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Trial acronym
ANZ 9602 (ATLAS)
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Early Breast Cancer
37
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Condition category
Condition code
Cancer
44
44
0
0
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Breast
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Patients enter the trial after completing approximately 5 years of tamoxifen for early breast cancer and are randomised to either continue tamoxifen for a further 5 years or stop tamoxifen. The dosage of tamoxifen is recommended at 20mg.day orally unless the patient's clinician prefers a different dosage. Patients will continue to be followed for at least 5 years after completing treatment.
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Intervention code [1]
1248
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Treatment: Drugs
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Comparator / control treatment
20mg Tamoxifen for a further 5 years
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Control group
Active
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Outcomes
Primary outcome [1]
77
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The aim of ATLAS is to compare different durations of adjuvant tamoxifen therapy for early breast cancer to determine the optimum duration based on the evaluation of:
* All cause mortality
* Cause specific mortality (including breast cancer, myocardial infarct, and other cancers)
* Non fatal events (including new, contralateral primary breast cancer, other cancers, myocardial infarct and other vascular events requiring hospitalisation)
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Assessment method [1]
77
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Timepoint [1]
77
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After 5 years additional treatment.
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Secondary outcome [1]
151
0
N/A
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Assessment method [1]
151
0
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Timepoint [1]
151
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N/A
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Eligibility
Key inclusion criteria
Women who have received any type of curative surgery for early breast cancer are eligible (irrespective of the original histological type of the disease, nodal status, or whether the tumour was estrogen receptor positive or negative) so long as the woman appears currently to be free of breast cancer and is receiving tamoxifen and where both the woman and her doctor are uncertain whether to continue with tamoxifen.
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Females
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Can healthy volunteers participate?
No
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Key exclusion criteria
No exclusion criteria
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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)
Central randomisation by fax
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
computer generated stratified blocks
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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
N/A
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Phase
Phase 3
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Type of endpoint/s
Safety/efficacy
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
1/12/1995
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Actual
1/07/1996
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Date of last participant enrolment
Anticipated
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Actual
1/03/2005
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Date of last data collection
Anticipated
31/03/2017
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Actual
31/03/2017
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Sample size
Target
20000
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Accrual to date
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Final
15252
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Recruitment in Australia
Recruitment state(s)
ACT,NSW,QLD,SA,TAS,WA,VIC
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Recruitment outside Australia
Country [1]
9232
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New Zealand
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State/province [1]
9232
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N/A
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Funding & Sponsors
Funding source category [1]
62
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Self funded/Unfunded
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Name [1]
62
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Breast Cancer Trials
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Address [1]
62
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PO Box 283
The Junction NSW 2291
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Country [1]
62
0
Australia
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Primary sponsor type
Other Collaborative groups
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Name
Breast Cancer Trials
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Address
PO Box 283
The Junction NSW 2291
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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]
48
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N/A
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Address [1]
48
0
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Country [1]
48
0
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
467
0
Auckland Hospital
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Ethics committee address [1]
467
0
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Ethics committee country [1]
467
0
New Zealand
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Date submitted for ethics approval [1]
467
0
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Approval date [1]
467
0
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Ethics approval number [1]
467
0
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Ethics committee name [2]
468
0
Austin Health
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Ethics committee address [2]
468
0
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Ethics committee country [2]
468
0
Australia
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Date submitted for ethics approval [2]
468
0
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Approval date [2]
468
0
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Ethics approval number [2]
468
0
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Ethics committee name [3]
469
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Ballarat Health Services
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Ethics committee address [3]
469
0
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Ethics committee country [3]
469
0
Australia
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Date submitted for ethics approval [3]
469
0
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Approval date [3]
469
0
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Ethics approval number [3]
469
0
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Ethics committee name [4]
470
0
Ballarat Oncology and Haematology Services
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Ethics committee address [4]
470
0
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Ethics committee country [4]
470
0
Australia
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Date submitted for ethics approval [4]
470
0
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Approval date [4]
470
0
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Ethics approval number [4]
470
0
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Ethics committee name [5]
471
0
Bendigo Hospital
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Ethics committee address [5]
471
0
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Ethics committee country [5]
471
0
New Zealand
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Date submitted for ethics approval [5]
471
0
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Approval date [5]
471
0
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Ethics approval number [5]
471
0
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Ethics committee name [6]
472
0
Border Medical Oncology
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Ethics committee address [6]
472
0
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Ethics committee country [6]
472
0
Australia
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Date submitted for ethics approval [6]
472
0
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Approval date [6]
472
0
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Ethics approval number [6]
472
0
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Ethics committee name [7]
473
0
Box Hill Hospital
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Ethics committee address [7]
473
0
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Ethics committee country [7]
473
0
Australia
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Date submitted for ethics approval [7]
473
0
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Approval date [7]
473
0
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Ethics approval number [7]
473
0
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Ethics committee name [8]
474
0
Canberra Hospital
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Ethics committee address [8]
474
0
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Ethics committee country [8]
474
0
Australia
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Date submitted for ethics approval [8]
474
0
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Approval date [8]
474
0
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Ethics approval number [8]
474
0
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Ethics committee name [9]
475
0
Christchurch Hospital
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Ethics committee address [9]
475
0
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Ethics committee country [9]
475
0
New Zealand
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Date submitted for ethics approval [9]
475
0
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Approval date [9]
475
0
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Ethics approval number [9]
475
0
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Ethics committee name [10]
476
0
Dubbo Base Hospital
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Ethics committee address [10]
476
0
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Ethics committee country [10]
476
0
Australia
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Date submitted for ethics approval [10]
476
0
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Approval date [10]
476
0
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Ethics approval number [10]
476
0
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Ethics committee name [11]
477
0
Geelong Hospital
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Ethics committee address [11]
477
0
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Ethics committee country [11]
477
0
Australia
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Date submitted for ethics approval [11]
477
0
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Approval date [11]
477
0
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Ethics approval number [11]
477
0
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Ethics committee name [12]
478
0
Women's Health Program
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Ethics committee address [12]
478
0
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Ethics committee country [12]
478
0
Australia
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Date submitted for ethics approval [12]
478
0
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Approval date [12]
478
0
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Ethics approval number [12]
478
0
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Ethics committee name [13]
479
0
Launceston General Hospital
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Ethics committee address [13]
479
0
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Ethics committee country [13]
479
0
Australia
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Date submitted for ethics approval [13]
479
0
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Approval date [13]
479
0
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Ethics approval number [13]
479
0
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Ethics committee name [14]
480
0
Lismore Base Hospital
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Ethics committee address [14]
480
0
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Ethics committee country [14]
480
0
Australia
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Date submitted for ethics approval [14]
480
0
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Approval date [14]
480
0
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Ethics approval number [14]
480
0
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Ethics committee name [15]
481
0
Liverpool Hospital
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Ethics committee address [15]
481
0
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Ethics committee country [15]
481
0
Australia
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Date submitted for ethics approval [15]
481
0
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Approval date [15]
481
0
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Ethics approval number [15]
481
0
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Ethics committee name [16]
482
0
Maroondah Hospital
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Ethics committee address [16]
482
0
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Ethics committee country [16]
482
0
Australia
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Date submitted for ethics approval [16]
482
0
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Approval date [16]
482
0
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Ethics approval number [16]
482
0
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Ethics committee name [17]
483
0
Mater Hospital
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Ethics committee address [17]
483
0
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Ethics committee country [17]
483
0
Australia
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Date submitted for ethics approval [17]
483
0
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Approval date [17]
483
0
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Ethics approval number [17]
483
0
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Ethics committee name [18]
484
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Mount Hospital
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Ethics committee address [18]
484
0
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Ethics committee country [18]
484
0
Australia
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Date submitted for ethics approval [18]
484
0
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Approval date [18]
484
0
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Ethics approval number [18]
484
0
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Ethics committee name [19]
485
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Newcastle Mater Misericordiae Hospital
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Ethics committee address [19]
485
0
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Ethics committee country [19]
485
0
Australia
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Date submitted for ethics approval [19]
485
0
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Approval date [19]
485
0
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Ethics approval number [19]
485
0
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Ethics committee name [20]
486
0
Orange Base Hospital
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Ethics committee address [20]
486
0
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Ethics committee country [20]
486
0
Australia
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Date submitted for ethics approval [20]
486
0
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Approval date [20]
486
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01/07/1996
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Ethics approval number [20]
486
0
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Ethics committee name [21]
487
0
Port Macquarie Base Hospital
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Ethics committee address [21]
487
0
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Ethics committee country [21]
487
0
Australia
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Date submitted for ethics approval [21]
487
0
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Approval date [21]
487
0
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Ethics approval number [21]
487
0
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Ethics committee name [22]
488
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Prince of Wales Hospital
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Ethics committee address [22]
488
0
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Ethics committee country [22]
488
0
Australia
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Date submitted for ethics approval [22]
488
0
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Approval date [22]
488
0
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Ethics approval number [22]
488
0
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Ethics committee name [23]
489
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Queen Elizabeth Hospital
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Ethics committee address [23]
489
0
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Ethics committee country [23]
489
0
Australia
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Date submitted for ethics approval [23]
489
0
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Approval date [23]
489
0
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Ethics approval number [23]
489
0
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Ethics committee name [24]
490
0
Royal Hobart Hospital
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Ethics committee address [24]
490
0
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Ethics committee country [24]
490
0
Australia
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Date submitted for ethics approval [24]
490
0
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Approval date [24]
490
0
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Ethics approval number [24]
490
0
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Ethics committee name [25]
491
0
Royal North Shore Hospital
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Ethics committee address [25]
491
0
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Ethics committee country [25]
491
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Australia
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Date submitted for ethics approval [25]
491
0
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Approval date [25]
491
0
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Ethics approval number [25]
491
0
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Ethics committee name [26]
492
0
Royal Prince Alfred Hospital
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Ethics committee address [26]
492
0
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Ethics committee country [26]
492
0
Australia
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Date submitted for ethics approval [26]
492
0
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Approval date [26]
492
0
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Ethics approval number [26]
492
0
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Ethics committee name [27]
493
0
Sir Charles Gairdner Hospital
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Ethics committee address [27]
493
0
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Ethics committee country [27]
493
0
Australia
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Date submitted for ethics approval [27]
493
0
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Approval date [27]
493
0
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Ethics approval number [27]
493
0
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Ethics committee name [28]
494
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Sydney Haematology and Oncology
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Ethics committee address [28]
494
0
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Ethics committee country [28]
494
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Australia
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Date submitted for ethics approval [28]
494
0
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Approval date [28]
494
0
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Ethics approval number [28]
494
0
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Ethics committee name [29]
495
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Tamworth Base Hospital
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Ethics committee address [29]
495
0
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Ethics committee country [29]
495
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Australia
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Date submitted for ethics approval [29]
495
0
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Approval date [29]
495
0
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Ethics approval number [29]
495
0
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Ethics committee name [30]
496
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Toowoomba Hospital
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Ethics committee address [30]
496
0
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Ethics committee country [30]
496
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Australia
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Date submitted for ethics approval [30]
496
0
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Approval date [30]
496
0
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Ethics approval number [30]
496
0
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Ethics committee name [31]
497
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Townsville General Hospital
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Ethics committee address [31]
497
0
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Ethics committee country [31]
497
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Australia
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Date submitted for ethics approval [31]
497
0
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Approval date [31]
497
0
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Ethics approval number [31]
497
0
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Ethics committee name [32]
498
0
Tweed Hospital
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Ethics committee address [32]
498
0
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Ethics committee country [32]
498
0
Australia
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Date submitted for ethics approval [32]
498
0
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Approval date [32]
498
0
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Ethics approval number [32]
498
0
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Ethics committee name [33]
499
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Westmead Hospital
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Ethics committee address [33]
499
0
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Ethics committee country [33]
499
0
Australia
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Date submitted for ethics approval [33]
499
0
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Approval date [33]
499
0
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Ethics approval number [33]
499
0
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Summary
Brief summary
Trials of adjuvant tamoxifen in women with early breast cancer have demonstrated a highly significant improvement in 10-year survival. However it is not yet known how long women with early breast cancer should continue to take adjuvant tamoxifen. The ATLAS trial will determine if it is better to stop taking tamoxifen after 5 years, or continue taking it for another 5 years (10 years in total).
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Trial website
www.breastcancertrials.org.au
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Trial related presentations / publications
Davies C, Pan H, Godwin J, Gray R, Arriagada R, Raina V, Abraham M, Alencar VHM, Badran A, Bonfill X, Bradbury J, Clarke M, Collins R, Davis SR, Delmestri A, Forbes JF, Haddad P, Hou M-F, Inbar M, Khaled H, Keilanowska J, Kwan W-H, Mathew BS, Müller B, Nicolucci A, Peralta O, Pernas F, Petruzelka L, Peinkowski T, Ragan B, Rubach MT, Tort S, Urrútia G, Valentini M, Wang Y, Peto R, for the ATLAS Collaborative Group Long-term effects of continuing adjuvant tamoxifen to 10 years versus stopping at 5 years after diagnosis of oestrogen receptor-positive breast cancer: ATLAS, a randomised trial The Lancet 2013; 381:805-816.
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Public notes
Breast Cancer Trials formerly known as the Australia & New Zealand Breast Cancer Trials Group.
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Contacts
Principal investigator
Name
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A/Prof Shane White
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Address
35469
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Austin Health
Medical Oncology Unit
Level 6 Harold Stokes Building
Austin Health Studley Road
HEIDELBERG VIC 3084
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Country
35469
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Australia
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Phone
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+61 (03) 9496-3549
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Corinna Beckmore
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Address
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BCT
PO Box 283
The Junction NSW 2291
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Country
10437
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Australia
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Phone
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+61 2 4925 5235
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Fax
10437
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+61 2 4925 3068
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Email
10437
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[email protected]
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Contact person for scientific queries
Name
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Shane White
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Address
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Austin Health
Medical Oncology Unit
Level 6 Harold Stokes Building
Austin Health Studley Road
HEIDELBERG VIC 3084
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Country
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Australia
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Phone
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+61 (03) 9496-3549
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Fax
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0
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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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