C-Path’s Polycystic Kidney Disease Outcomes Consortium Secures EMA Qualification Opinion for Enrichment Biomarker in ADPKD

November 13, 2015

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C-Path’s Polycystic Kidney Disease Outcomes Consortium Secures EMA Qualification Opinion for Enrichment Biomarker in ADPKD

TUCSON, Ariz., November 13, 2015 – The Critical Path Institute (C-Path) announced today that the European Medicines Agency (EMA) rendered a positive qualification opinion to C-Path’s Polycystic Kidney Disease Outcomes Consortium (PKDOC) for total kidney volume (TKV) as a prognostic biomarker to select patients for clinical trials of new therapies for Autosomal Dominant Polycystic Kidney Disease (ADPKD).

ADPKD is a debilitating genetic disease affecting approximately 600,000 Americans and 12 million people worldwide. There is only one medication developed to treat ADPKD, called tolvaptan, which has been approved in Europe, Japan, and Canada, but has not yet been approved in the United States.

TKV is a measurement of the impact of ADPKD on the size of the kidneys and is considered to be predictive of a future decline in kidney function. The EMA opinion states, “CHMP [Committee for Medicinal Products for Human Use] supports baseline total kidney volume, in combination with patient age and eGFR [estimated glomerular filtration rate] as a prognostic biomarker to identify patients likely to experience a progressive decline in renal function, as characterized by a decline in eGFR or progression to end-stage renal disease.

“From the data provided it is reasonable to expect that baseline TKV can predict disease progression and is a biomarker valuable for risk stratification.”

”This qualification, along with a similar one from FDA, confirms the relationship between TKV and ADPKD disease progression, and will help in the design of clinical trials for new therapies for ADPKD” says C-Path Chief Operating Officer and PKDOC Co-Director Steve Broadbent.

The PKDOC created a Clinical Data Interchange Standards Consortium (CDISC) data standard for ADPKD and used it to remap the data from several patient registries and observational studies. The database was then used to develop a joint model linking baseline TKV with clinical outcomes.

About PKDOC:
The PKDOC is a successful collaboration between C-Path, the PKD Foundation, CDISC, four leading academic medical centers (Tufts University, University of Colorado Denver, Emory University, and Mayo Clinic), and three pharmaceutical companies. Its mission is to develop tools and promote research that will lead to the discovery of treatments for PKD and improve the lives of all it affects. The consortium is led by C-Path and funded through a grant from the PKD Foundation and philanthropic donations.

About the organizations:

C-Path (Critical Path Institute) is an independent, nonprofit organization established in 2005 with public and private philanthropic support from the Arizona community, Science Foundation Arizona, and the US Food and Drug Administration (FDA). C-Path’s mission is to catalyze the development of new approaches that advance medical innovation and regulatory science, accelerating the path to a healthier world. An international leader in forming collaborations, C-Path has established 12 global, public-private partnerships that currently include over 1,300 scientists from government and regulatory agencies, academia, patient advocacy organizations, and dozens of major pharmaceutical companies. C-Path is headquartered in Tucson, Arizona. For more information, visit www.c-path.org.


 

The PKD Foundation is the only organization in the United States solely dedicated to finding treatments and a cure for polycystic kidney disease (PKD) to improve the lives of those it affects. This is done through promoting programs of research, education, advocacy, support, and awareness on a national level, along with direct services in local communities across the country. Their vision is that one day no one will suffer the full effects of PKD. Visit pkdcure.org to learn more about PKD and the Foundation.

C-Path Contact:
 Kissy Black
+1.615.298.1144
kissyblack@lotosnile.com
PKD Foundation Contact:
 Angela Connelly
816.931.2600 ext. 212
angelac@pkdcure.org

 

Critical Path Institute Secures Additional Regulatory Support For Kidney Safety Biomarkers

January 12, 2015

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Critical Path Institute Secures Additional Regulatory Support For Kidney Safety Biomarkers

EMA Letter of Support Opens Door for Clinical Qualification

TUCSON, Ariz., January 12, 2015 – The Critical Path Institute (C-Path) announced today that the European Medicines Agency (EMA) issued a first-of-its kind Biomarker Letter of Support for two essential kidney safety biomarkers identified and evaluated by the Predictive Safety Testing Consortium (PSTC)’s Nephrotoxicity Working Group.

The kidney safety biomarkers, osteopontin (OPN) and neutrophil gelatinase-associated lipocalin (NGAL), are proteins that can be measured in urine. Higher levels of OPN and NGAL could indicate that the kidneys are being damaged, which may result in a loss of kidney function. The Letter of Support intends to encourage scientists to collect data from nonclinical and exploratory clinical studies, which may lead to qualification of these biomarkers.

“We are pleased to continue working collaboratively with the EMA, academia, and industry to identify tools, processes, and methods to improve the drug development process,” said Martha Brumfield, Ph.D., president and chief executive officer of C-Path. “With this Letter of Support, the EMA has opened doors that encourage the generation of necessary, rigorous clinical data to determine if these biomarkers hold clinical utility.”

The EMA’s Letter of Support indicates that these biomarkers have strong potential for use in humans and warrant additional exploration and data gathering. The EMA granted the Letter of Support for OPN and NGAL to encourage their use in both nonclinical and exploratory clinical studies as markers of proximal renal tubule degeneration/necrosis. With this milestone, work will continue in earnest on the qualification of OPN and NGAL for use in clinical trials.

“We are all incredibly excited about our collaborative interactions with EMA and the creation of the Letter of Support, enabling us to further define the path to clinical biomarker qualification,” said John Michael Sauer, Ph.D., Executive Director, Predictive Safety Testing Consortium, Critical Path Institute.

The Letter of Support is posted on the EMA website and can also be accessed via the C-Path PSTC website under the Regulatory Successes tab, along with a summary data package describing the studies that support the use of these kidney safety biomarkers.

About the Critical Path Institute

The Critical Path Institute (C-Path) is an independent, non-profit organization established in 2005 with public and private philanthropic support from the Arizona community, Science Foundation Arizona, and the U.S. Food and Drug Administration (FDA). C-Path’s mission is to catalyze the development of new approaches that advance medical innovation and regulatory science, accelerating the path to a healthier world. An international leader in forming collaborations, C-Path has established seven global, public-private partnerships that currently include over 1,000 scientists from government and regulatory agencies, academia, patient advocacy organizations, and dozens of major pharmaceutical companies. C-Path is headquartered in Tucson, Arizona. For more information, visit http://www.c-path.org.