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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT00441220
Registration number
NCT00441220
Ethics application status
Date submitted
27/02/2007
Date registered
28/02/2007
Date last updated
5/03/2009
Titles & IDs
Public title
Cyclophosphamide in Lupus Nephritis
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Scientific title
Failure of Cyclophosphamide Therapy in Lupus Nephritis Patients: the Role of Bioactivation Phenotype and Genotype
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Secondary ID [1]
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ADHB3557
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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:
Systemic Lupus Erythematosus
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Condition category
Condition code
Renal and Urogenital
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Other renal and urogenital disorders
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Inflammatory and Immune System
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Other inflammatory or immune system disorders
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Human Genetics and Inherited Disorders
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Other human genetics and inherited disorders
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Intervention/exposure
Study type
Observational
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Patient registry
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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
A - Patients must have lupus nephritis and previously had therapy with intravenous cyclophosphamide.
B - Patients must have lupus nephritis and are currently receiving therapy with intravenous cyclophosphamide.
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Comparator / control treatment
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Control group
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Outcomes
Eligibility
Key inclusion criteria
* Patients with lupus nephritis requiring therapy with intravenous cyclophosphamide
* Lupus nephritis is defined according to American College of Rheumatology criteria as the presence of either:
1. histological evidence from renal biopsy;
2. persistent proteinuria of >0.5 g/day or proteinuria >3+ on dipstick; or
3. cellular casts of any type. Patients will have had a renal biopsy performed to determine the histological class of lupus nephritis. Therapy with cyclophosphamide is typically used in patients with Class III, IV and severe Class V lupus nephritis.
* Patients = 18 years of age
* Patients must be able to provide informed consent
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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?
No
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Key exclusion criteria
* Those who do not meet inclusion criteria
* Those patients in the retrospective study who have died
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Study design
Purpose
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Duration
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Selection
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Timing
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Statistical methods / analysis
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Recruitment
Recruitment status
UNKNOWN
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/10/2006
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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
1/10/2010
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Actual
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Sample size
Target
60
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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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Recruitment outside Australia
Country [1]
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New Zealand
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State/province [1]
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North Island
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Country [2]
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New Zealand
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State/province [2]
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Auckland
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Country [3]
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New Zealand
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State/province [3]
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Manakau City
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Funding & Sponsors
Primary sponsor type
Other
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Name
University of Auckland, New Zealand
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Address
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Other collaborator category [1]
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Government body
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Name [1]
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Auckland District Health Board
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Address [1]
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Country [1]
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Other collaborator category [2]
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Other
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Name [2]
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Counties Manukau Health
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Address [2]
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Other collaborator category [3]
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Other
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Name [3]
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Auckland Medical Research Foundation
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Address [3]
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Other collaborator category [4]
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Other
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Name [4]
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Arthritis New Zealand
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Address [4]
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Country [4]
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Ethics approval
Ethics application status
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Summary
Brief summary
Cyclophosphamide is widely used in the treatment of cancer and autoimmune diseases such as lupus nephritis. However, there is considerable variability in the response to cyclophosphamide treatment. Cyclophosphamide is a pro-drug that requires initial activation by CYP liver enzymes. Recent clinical studies have indicated a possible role of one CYP enzyme, CYP2C19 in this activation step. This enzyme has a genetic polymorphism (variants which lack functional activity) and people who have inherited these variants are poor metabolisers of certain drugs. The aim of this study is to determine whether response to therapy in a New Zealand population of lupus nephritis patients is determined by cyclophosphamide bioactivation (the metabolic phenotype) and CYP genotype. Currently there is no way of predicting a patient's response to cyclophosphamide. An understanding of the factors which contribute to the therapeutic failure in lupus nephritis is particularly important due to the high morbidity and mortality associated with this disease. There are other treatment options for lupus nephritis patients who fail to respond to cyclophosphamide. If successful, this study may help identify patients who are unlikely to respond to cyclophosphamide and thus should not be unnecessarily be exposed to the drug and may justify the use of newer, more costly immunosuppressive drugs such as mycophenolate mofetil and rituximab.
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Trial website
https://clinicaltrials.gov/study/NCT00441220
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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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Nuala Helsby, PhD
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Address
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Senior Lecturer in Molecular Medicine and Pathology, University of Auckland
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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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Peter Gow, MBChB
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Address
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Country
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Phone
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09 2760000
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Fax
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Email
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[email protected]
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Contact person for scientific queries
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
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT00441220
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