Fabry DiseaseNCT02994303
Podocyturia - Predictor of Renal Dysfunction in Fabry Nephropathy
An observational study of Fabry Disease, run by University of Washington at 3 sites in United States.
Trial summary
In patients with Fabry disease, this research study explores the presence of podocytes in their urine as a potential non-invasive biomarker for baseline kidney disease; and explores changes in the quantity of podocytes in their urine over time as a predictor for kidney disease progression. Read more about this study
- Who is it for?
- Ages 1 day to 90 years
- Conditions the study is for
- Fabry Disease
- How many people
- 58 participants
- Where
- 3 sitesUnited States
- Study dates
- Sep 2014to Aug 2019
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 1 day to 90 years
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: Patients of any gender who have been diagnosed with Fabry disease
Who may be able to join
- Patients must have been diagnosed with Fabry disease
- Patients must be between the ages of 1 day-90 years
Who cannot join
- Fabry disease patients who have had a renal transplant
- Fabry disease patients who are, or have been, subjects in any investigational drug study
Trial locations and contacts
3 sites in 1 country.
United States3 sites, 3 recruiting
- Recruiting
Emory University
Decatur, Georgia, 30033
Dawn Laney, MS,CGC, CCRC, 404-778-8518, dawn.laney@emory.edu
Dawn Laney, MS,CGC, CCRC
- Recruiting
University of Minnesota
Minneapolis, Minnesota, 55455
Michael Mauer, MD, 612-624-4688, pinth001@umn.edu
Cathy A Bagne, 612-624-4688, pinth001@umn.edu
- Recruiting
University of Washington
Seattle, Washington, 98195
Cindy M. Tower, 206-616-5464, cmschnei@u.washington.edu
Behzad Najafian, M.D.
About this study
Official title: Podocyturia, a Non-Invasive Predictor of Renal Dysfunction in Fabry Nephropathy
In patients with Fabry disease, this research study explores the presence of podocytes in their urine as a potential non-invasive biomarker for baseline kidney disease; and explores changes in the quantity of podocytes in their urine over time as a predictor for kidney disease progression. To accomplish this, the investigators will evaluate the quantification of podocytes in the urine of Fabry disease patients at baseline and longitudinally over time. This study requires a single patient visit, during which the patient provides a urine specimen. The research team will then collect the patient's kidney function data proximate to the time of urine collection, and follow the patient's kidney function data longitudinally over the five years of this study by reviewing their medical charts. The study offers no interventions.
Read the detailed description
Despite long-term recombinant enzyme replacement therapy, kidney failure remains a common and important complication of Fabry disease. Recent studies suggest that early administration of enzyme replacement therapy in sufficient dosage may prevent progression of kidney failure in patients with Fabry disease. Currently, there is no reliable non-invasive biomarker to detect early, occult kidney injury in these patients. Such early kidney injury detection is critical for guiding the decision as to when to initiate enzyme replacement therapy, and for identifying those patients with more severe kidney injury who may need higher doses of enzyme replacement therapy or additional forms of therapy.
Podocytes are special kidney cells with a crucial role in preventing escape of protein from the blood into the urine. Biopsy studies of Fabry disease patients suggest that podocyte injury occurs early and is progressive with increasing age in young Fabry disease patients. It is also likely that podocyte injury and loss leads to irreversible kidney lesions in later stages of Fabry disease nephropathy. Because injured podocytes are sloughed off into the urine (a manifestation known as podocyturia), quantification of urine podocytes might serve as a non-invasive and sensitive biomarker useful for predicting Fabry disease nephropathy risk; and to guide more effective Fabry disease treatment.
The investigators' preliminary data show correlations between presence of urinary podocytes and other markers of renal disease in adult Fabry disease patients; however, these cross-sectional data need to be expanded. The investigators have no information as to whether this potential biomarker could predict progression of the disease.
The investigators hypothesize that since podocyte injury plays a central role in kidney complications of Fabry disease, podocyte loss detected in the urine will identify patients with greater underlying kidney disease, and will identify patients with greater propensity for kidney disease progression. They also hypothesize that the number of podocytes in the urine of patients with Fabry disease will correlate directly with these patients' proteinuria, and will correlate inversely with their glomerular filtration rate (GFR) at baseline. Additionally the investigators hypothesize that the number of podocytes in the urine of patients with Fabry disease will predict increase in proteinuria and decline in glomerular filtration rate, as measured during long-term patient follow-up.
Data to be collected include identification of these patients' GLA gene mutation; measurement of their baseline a-galactosidase A enzyme activity; their baseline age, gender, height and weight; measurement of their baseline serum creatinine (SCr), eGFR, PCR and ACR; these patients' family history of Fabry disease, their history of kidney or systemic diseases, their medications including enzyme replacement therapy, and their medical information about other complications of Fabry disease (such as cardiomyopathy, arrhythmias, neuropathy and gastrointestinal problems).
- Conditions
- Fabry Disease
- Keywords
- Fabry disease, Fabry nephropathy, end-stage renal disease, Anderson-Fabry disease, Fabry's disease
- Medical subject headings
- Fabry Disease, Kidney Failure, Chronic
What is being measured
The primary outcome is the main question the study is designed to answer.
Detection of Podocyturia in Subjects Diagnosed with Fabry Disease
In subjects who have been diagnosed with Fabry disease, their urine sample will be examined for the presence of podocyturia at time of enrollment. If podocyturia is present, it will be quantified and recorded.
Measured: At time of enrollment
Secondary outcomes (5)
Change from Baseline in Number of Urine Podocytes at Year 1, 2, 3, 4 and 5
For Fabry disease patients who tested positive at time of enrollment for the presence of urine podocytes, annually during the five years of this study their medical records will be used as the information source to record their numbers of urine podocytes. This annual podocyte-count data will be analyzed to determine whether change over time has occurred in their number of urine podocytes, and if it has occurred, to examine if this change correlates with changes in urine albumin excretion, urine protein excretion or glomerular filtration rate, as extracted from electronic medical records.
Measured: Annually at Year 1, Year 2, Year 3, Year 4 and Year 5
Change from Baseline in urine protein/creatinine ratio (PCR) at Year 1, 2, 3, 4 and 5
In patients who have been diagnosed with Fabry disease, their urine protein/creatinine ratio (PCR) will be quantified at time of enrollment; and annually thereafter for five years by collection of data from their medical chart. Their quantified podocyturia will be correlated with change in their urine protein/creatinine ratio (PCR) over time.
Measured: At time of enrollment, then annually at Year 1, Year 2, Year 3, Year 4 and Year 5
Change from Baseline in urine albumin/creatinine ratio (ACR) at Year 1, 2, 3, 4 and 5
In patients who have been diagnosed with Fabry disease, their urine albumin/creatinine ratio (ACR) will be quantified at time of enrollment; and annually thereafter for five years by collection of data from their medical chart. Their quantified podocyturia will be correlated with change in their urine albumin/creatinine ratio (ACR) over time.
Measured: At time of enrollment, then annually at Year 1, Year 2, Year 3, Year 4 and Year 5
Change from Baseline in estimated glomerular filtration rate (eGFR) at Year 1, 2, 3, 4 and 5
In patients who have been diagnosed with Fabry disease, their estimated glomerular filtration rate (eGFR) will be quantified at time of enrollment; and annually thereafter for five years by collection of data from their medical chart. Their quantified podocyturia will be correlated with change in their estimated glomerular filtration rate (eGFR) over time.
Measured: At time of enrollment, then annually at Year 1, Year 2, Year 3, Year 4 and Year 5
Change from Baseline in Number of Urine Podocytes at Year 1, 2, 3, 4 or 5, Based On Subject's New Urine Sample
Providing more than one urine sample for podocyte counting is optional in this study. For those subjects who do provide an additional urine specimen in any year of this study that is subsequent to baseline, the number of urine podocytes at baseline will be compared to the number of urine podocytes in any additional urine specimen(s) collected in years 1 through 5. This podocyte-count data will be analyzed to determine whether change over time has occurred in their number of urine podocytes, and if it has occurred, to examine if this change correlates with changes in urine albumin excretion, urine protein excretion or glomerular filtration rate, as extracted from electronic medical records.
Measured: Annually at Year 1, Year 2, Year 3, Year 4 or Year 5
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Dec 2016 (estimated)
- Study startSep 2014
- Primary completionAug 2019 (estimated)
- Study completionAug 2019 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (13)Papers the sponsor has linked to this study.
- Other trials for Fabry DiseaseStudies of the same condition, open and under way.
- More trials run by University of WashingtonThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Prospective
- Enrolment
- 58 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Washington
- Sponsor type
- University, hospital or other
- Collaborators
- Rare Diseases Clinical Research Network, National Center for Advancing Translational Sciences (NCATS), National Institute of Neurological Disorders and Stroke (NINDS), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Lysosomal Disease Network
- Responsible party
- Principal investigator, Behzad Najafian, University of Washington
- Investigators
- Behzad Najafian, M.D., Principal investigator, University of Washington Associate Professor, Pathology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02994303
- Sponsor's protocol ID
- 51316-EA
- Other IDs
- U54NS065768
- Status last verified
- Aug 2017
- First submitted
- 5 Dec 2016
- Last updated
- 28 Aug 2017
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: De-identified individual data is input to the NIH-funded Rare Diseases Clinical Research Network's Data Management \& Coordinating Center ("DMCC"). Eventually this data will become part of the database of Genotypes and Phenotypes ("dbGaP"), which is part of the National Center for Biotechnology Information, U.S. National Library of Medicine.
Publications
Najafian B, Tondel C, Svarstad E, Sokolovkiy A, Smith K, Mauer M. One Year of Enzyme Replacement Therapy Reduces Globotriaosylceramide Inclusions in Podocytes in Male Adult Patients with Fabry Disease. PLoS One. 2016 Apr 15;11(4):e0152812. doi: 10.1371/journal.pone.0152812. eCollection 2016.
PubMed 27081853Najafian B, Fogo AB, Lusco MA, Alpers CE. AJKD Atlas of Renal Pathology: Fabry nephropathy. Am J Kidney Dis. 2015 Nov;66(5):e35-6. doi: 10.1053/j.ajkd.2015.08.006. No abstract available.
PubMed 26498420Wijburg FA, Benichou B, Bichet DG, Clarke LA, Dostalova G, Fainboim A, Fellgiebel A, Forcelini C, An Haack K, Hopkin RJ, Mauer M, Najafian B, Scott CR, Shankar SP, Thurberg BL, Tondel C, Tylki-Szymanska A, Ramaswami U. Characterization of early disease status in treatment-naive male paediatric patients with Fabry disease enrolled in a randomized clinical trial. PLoS One. 2015 May 8;10(5):e0124987. doi: 10.1371/journal.pone.0124987. eCollection 2015.
PubMed 25955246Mauer M, Glynn E, Svarstad E, Tondel C, Gubler MC, West M, Sokolovskiy A, Whitley C, Najafian B. Mosaicism of podocyte involvement is related to podocyte injury in females with Fabry disease. PLoS One. 2014 Nov 11;9(11):e112188. doi: 10.1371/journal.pone.0112188. eCollection 2014.
PubMed 25386848Najafian B, Mauer M, Hopkin RJ, Svarstad E. Renal complications of Fabry disease in children. Pediatr Nephrol. 2013 May;28(5):679-87. doi: 10.1007/s00467-012-2222-9. Epub 2012 Aug 17.
PubMed 22898981Najafian B, Mauer M. Quantitating glomerular endothelial fenestration: an unbiased stereological approach. Am J Nephrol. 2011;33 Suppl 1(Suppl 1):34-9. doi: 10.1159/000327075. Epub 2011 Jun 10.
PubMed 21659733Najafian B, Svarstad E, Bostad L, Gubler MC, Tondel C, Whitley C, Mauer M. Progressive podocyte injury and globotriaosylceramide (GL-3) accumulation in young patients with Fabry disease. Kidney Int. 2011 Mar;79(6):663-670. doi: 10.1038/ki.2010.484. Epub 2010 Dec 15.
PubMed 21160462Ramaswami U, Najafian B, Schieppati A, Mauer M, Bichet DG. Assessment of renal pathology and dysfunction in children with Fabry disease. Clin J Am Soc Nephrol. 2010 Feb;5(2):365-70. doi: 10.2215/CJN.08091109. Epub 2010 Jan 7.
PubMed 20056758Mauer M, Najafian B. Implications of early renal changes in Fabry disease. Clin Ther. 2008;30 Suppl B:S40. doi: 10.1016/s0149-2918(08)80034-3. No abstract available.
PubMed 18395133Hopkin RJ, Cabrera G, Charrow J, Lemay R, Martins AM, Mauer M, Ortiz A, Patel MR, Sims K, Waldek S, Warnock DG, Wilcox WR. Risk factors for severe clinical events in male and female patients with Fabry disease treated with agalsidase beta enzyme replacement therapy: Data from the Fabry Registry. Mol Genet Metab. 2016 Sep;119(1-2):151-9. doi: 10.1016/j.ymgme.2016.06.007. Epub 2016 Jun 13.
PubMed 27510433Hopkin RJ, Jefferies JL, Laney DA, Lawson VH, Mauer M, Taylor MR, Wilcox WR; Fabry Pediatric Expert Panel. The management and treatment of children with Fabry disease: A United States-based perspective. Mol Genet Metab. 2016 Feb;117(2):104-13. doi: 10.1016/j.ymgme.2015.10.007. Epub 2015 Oct 23.
PubMed 26546059Warnock DG, Mauer M. Fabry disease: dose matters. J Am Soc Nephrol. 2014 Apr;25(4):653-5. doi: 10.1681/ASN.2013121322. Epub 2014 Feb 20. No abstract available.
PubMed 24556355Fall B, Scott CR, Mauer M, Shankland S, Pippin J, Jefferson JA, Wallace E, Warnock D, Najafian B. Urinary Podocyte Loss Is Increased in Patients with Fabry Disease and Correlates with Clinical Severity of Fabry Nephropathy. PLoS One. 2016 Dec 16;11(12):e0168346. doi: 10.1371/journal.pone.0168346. eCollection 2016.
PubMed 27992580
Study at a glance
From the registry record, last updated by the sponsor on 28 Aug 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Podocyturia, a Non-Invasive Predictor of Renal Dysfunction in Fabry Nephropathy
- ClinicalTrials.gov ID
- NCT02994303
- Acronym / sponsor ID
- 51316-EA
- Conditions
- Fabry Disease
- Keywords
- Fabry disease, Fabry nephropathy, end-stage renal disease, Anderson-Fabry disease, Fabry's disease
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 58 participants (estimated)
- Lead sponsor
- University of WashingtonUniversity, hospital or other
- Collaborators
- Rare Diseases Clinical Research Network, National Center for Advancing Translational Sciences (NCATS), National Institute of Neurological Disorders and Stroke (NINDS), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Lysosomal Disease Network
- Study start
- Sep 2014
- Primary completion
- Aug 2019 (estimated)
- Study completion
- Aug 2019 (estimated)
- First posted
- 15 Dec 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
In patients with Fabry disease, this research study explores the presence of podocytes in their urine as a potential non-invasive biomarker for baseline kidney disease; and explores changes in the quantity of podocytes in their urine over time as a predictor for kidney disease progression. To accomplish this, the investigators will evaluate the quantification of podocytes in the urine of Fabry disease patients at baseline and longitudinally over time. This study requires a single patient visit, during which the patient provides a urine specimen. The research team will then collect the patient's kidney function data proximate to the time of urine collection, and follow the patient's kidney function data longitudinally over the five years of this study by reviewing their medical charts. The study offers no interventions.
Detailed description
Despite long-term recombinant enzyme replacement therapy, kidney failure remains a common and important complication of Fabry disease. Recent studies suggest that early administration of enzyme replacement therapy in sufficient dosage may prevent progression of kidney failure in patients with Fabry disease. Currently, there is no reliable non-invasive biomarker to detect early, occult kidney injury in these patients. Such early kidney injury detection is critical for guiding the decision as to when to initiate enzyme replacement therapy, and for identifying those patients with more severe kidney injury who may need higher doses of enzyme replacement therapy or additional forms of therapy.
Podocytes are special kidney cells with a crucial role in preventing escape of protein from the blood into the urine. Biopsy studies of Fabry disease patients suggest that podocyte injury occurs early and is progressive with increasing age in young Fabry disease patients. It is also likely that podocyte injury and loss leads to irreversible kidney lesions in later stages of Fabry disease nephropathy. Because injured podocytes are sloughed off into the urine (a manifestation known as podocyturia), quantification of urine podocytes might serve as a non-invasive and sensitive biomarker useful for predicting Fabry disease nephropathy risk; and to guide more effective Fabry disease treatment.
The investigators' preliminary data show correlations between presence of urinary podocytes and other markers of renal disease in adult Fabry disease patients; however, these cross-sectional data need to be expanded. The investigators have no information as to whether this potential biomarker could predict progression of the disease.
The investigators hypothesize that since podocyte injury plays a central role in kidney complications of Fabry disease, podocyte loss detected in the urine will identify patients with greater underlying kidney disease, and will identify patients with greater propensity for kidney disease progression. They also hypothesize that the number of podocytes in the urine of patients with Fabry disease will correlate directly with these patients' proteinuria, and will correlate inversely with their glomerular filtration rate (GFR) at baseline. Additionally the investigators hypothesize that the number of podocytes in the urine of patients with Fabry disease will predict increase in proteinuria and decline in glomerular filtration rate, as measured during long-term patient follow-up.
Data to be collected include identification of these patients' GLA gene mutation; measurement of their baseline a-galactosidase A enzyme activity; their baseline age, gender, height and weight; measurement of their baseline serum creatinine (SCr), eGFR, PCR and ACR; these patients' family history of Fabry disease, their history of kidney or systemic diseases, their medications including enzyme replacement therapy, and their medical information about other complications of Fabry disease (such as cardiomyopathy, arrhythmias, neuropathy and gastrointestinal problems).
Study design
- Observational model
- Case only
- Time perspective
- Prospective
Who may qualify
- Ages
- 1 day to 90 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- Patients of any gender who have been diagnosed with Fabry disease
Key inclusion criteria (2 listed)
- Patients must have been diagnosed with Fabry disease
- Patients must be between the ages of 1 day-90 years
Key exclusion criteria (2 listed)
- Fabry disease patients who have had a renal transplant
- Fabry disease patients who are, or have been, subjects in any investigational drug study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Detection of Podocyturia in Subjects Diagnosed with Fabry Disease
Time frame: At time of enrollment
In subjects who have been diagnosed with Fabry disease, their urine sample will be examined for the presence of podocyturia at time of enrollment. If podocyturia is present, it will be quantified and recorded.
5 secondary outcomes
Change from Baseline in Number of Urine Podocytes at Year 1, 2, 3, 4 and 5
Time frame: Annually at Year 1, Year 2, Year 3, Year 4 and Year 5
Change from Baseline in urine protein/creatinine ratio (PCR) at Year 1, 2, 3, 4 and 5
Time frame: At time of enrollment, then annually at Year 1, Year 2, Year 3, Year 4 and Year 5
Change from Baseline in urine albumin/creatinine ratio (ACR) at Year 1, 2, 3, 4 and 5
Time frame: At time of enrollment, then annually at Year 1, Year 2, Year 3, Year 4 and Year 5
Change from Baseline in estimated glomerular filtration rate (eGFR) at Year 1, 2, 3, 4 and 5
Time frame: At time of enrollment, then annually at Year 1, Year 2, Year 3, Year 4 and Year 5
Change from Baseline in Number of Urine Podocytes at Year 1, 2, 3, 4 or 5, Based On Subject's New Urine Sample
Time frame: Annually at Year 1, Year 2, Year 3, Year 4 or Year 5
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Aug 2017.
- Background: PubMed 27081853Najafian B, Tondel C, Svarstad E, Sokolovkiy A, Smith K, Mauer M. One Year of Enzyme Replacement Therapy Reduces Globotriaosylceramide Inclusions in Podocytes in Male Adult Patients with Fabry Disease. PLoS One. 2016 Apr 15;11(4):e0152812. doi: 10.1371/journal.pone.0152812. eCollection 2016.
- Background: PubMed 26498420Najafian B, Fogo AB, Lusco MA, Alpers CE. AJKD Atlas of Renal Pathology: Fabry nephropathy. Am J Kidney Dis. 2015 Nov;66(5):e35-6. doi: 10.1053/j.ajkd.2015.08.006. No abstract available.
- Background: PubMed 25955246Wijburg FA, Benichou B, Bichet DG, Clarke LA, Dostalova G, Fainboim A, Fellgiebel A, Forcelini C, An Haack K, Hopkin RJ, Mauer M, Najafian B, Scott CR, Shankar SP, Thurberg BL, Tondel C, Tylki-Szymanska A, Ramaswami U. Characterization of early disease status in treatment-naive male paediatric patients with Fabry disease enrolled in a randomized clinical trial. PLoS One. 2015 May 8;10(5):e0124987. doi: 10.1371/journal.pone.0124987. eCollection 2015.
- Background: PubMed 25386848Mauer M, Glynn E, Svarstad E, Tondel C, Gubler MC, West M, Sokolovskiy A, Whitley C, Najafian B. Mosaicism of podocyte involvement is related to podocyte injury in females with Fabry disease. PLoS One. 2014 Nov 11;9(11):e112188. doi: 10.1371/journal.pone.0112188. eCollection 2014.
- Background: PubMed 22898981Najafian B, Mauer M, Hopkin RJ, Svarstad E. Renal complications of Fabry disease in children. Pediatr Nephrol. 2013 May;28(5):679-87. doi: 10.1007/s00467-012-2222-9. Epub 2012 Aug 17.
- Background: PubMed 21659733Najafian B, Mauer M. Quantitating glomerular endothelial fenestration: an unbiased stereological approach. Am J Nephrol. 2011;33 Suppl 1(Suppl 1):34-9. doi: 10.1159/000327075. Epub 2011 Jun 10.
- Background: PubMed 21160462Najafian B, Svarstad E, Bostad L, Gubler MC, Tondel C, Whitley C, Mauer M. Progressive podocyte injury and globotriaosylceramide (GL-3) accumulation in young patients with Fabry disease. Kidney Int. 2011 Mar;79(6):663-670. doi: 10.1038/ki.2010.484. Epub 2010 Dec 15.
- Background: PubMed 20056758Ramaswami U, Najafian B, Schieppati A, Mauer M, Bichet DG. Assessment of renal pathology and dysfunction in children with Fabry disease. Clin J Am Soc Nephrol. 2010 Feb;5(2):365-70. doi: 10.2215/CJN.08091109. Epub 2010 Jan 7.
- Background: PubMed 18395133Mauer M, Najafian B. Implications of early renal changes in Fabry disease. Clin Ther. 2008;30 Suppl B:S40. doi: 10.1016/s0149-2918(08)80034-3. No abstract available.
- Background: PubMed 27510433Hopkin RJ, Cabrera G, Charrow J, Lemay R, Martins AM, Mauer M, Ortiz A, Patel MR, Sims K, Waldek S, Warnock DG, Wilcox WR. Risk factors for severe clinical events in male and female patients with Fabry disease treated with agalsidase beta enzyme replacement therapy: Data from the Fabry Registry. Mol Genet Metab. 2016 Sep;119(1-2):151-9. doi: 10.1016/j.ymgme.2016.06.007. Epub 2016 Jun 13.
- Background: PubMed 26546059Hopkin RJ, Jefferies JL, Laney DA, Lawson VH, Mauer M, Taylor MR, Wilcox WR; Fabry Pediatric Expert Panel. The management and treatment of children with Fabry disease: A United States-based perspective. Mol Genet Metab. 2016 Feb;117(2):104-13. doi: 10.1016/j.ymgme.2015.10.007. Epub 2015 Oct 23.
- Background: PubMed 24556355Warnock DG, Mauer M. Fabry disease: dose matters. J Am Soc Nephrol. 2014 Apr;25(4):653-5. doi: 10.1681/ASN.2013121322. Epub 2014 Feb 20. No abstract available.
- Web site of the University of Washington in Seattle, Washington. This is the location of this research study's Principal Investigator and his team.Link provided by the sponsor.
- Web site of Emory University, one of the satellite locations of this research study.Link provided by the sponsor.
- Web site of the University of Minnesota - Twin Cities, one of the satellite locations of this research study.Link provided by the sponsor.
- Individual participant dataSharing planned: Yes. De-identified individual data is input to the NIH-funded Rare Diseases Clinical Research Network's Data Management \& Coordinating Center ("DMCC"). Eventually this data will become part of the database of Genotypes and Phenotypes ("dbGaP"), which is part of the National Center for Biotechnology Information, U.S. National Library of Medicine.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Behzad Najafian, M.D. principal investigator
University of Washington Associate Professor, Pathology
3 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Fabry Disease, run by University of Washington at 3 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 28 Aug 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Behzad Najafian, M.D. (206-897-5596, najafian@u.washington.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Detection of Podocyturia in Subjects Diagnosed with Fabry Disease (time frame: At time of enrollment). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02994303, which also lists 13 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Aug 2017.