Lab-on-a-Chip for Multiplexed Newborn Screening of Lysosomal Storage Disorders

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$2,983,089.00
Award Year:
2012
Program:
SBIR
Phase:
Phase II
Contract:
2R44HD057713-04
Award Id:
n/a
Agency Tracking Number:
R44HD057713
Solicitation Year:
2012
Solicitation Topic Code:
NICHD
Solicitation Number:
PA11-096
Small Business Information
615 Davis Dr., Suite 800, RESEARCH TRIANGLE PARK, NC, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
140695474
Principal Investigator:
VAMSEEPAMULA
(919) 287-9010
VPamula@Liquid-Logic.com
Business Contact:
VAMSEEPAMULA
(919) 287-9010
VPamula@Liquid-Logic.com
Research Institute:
Stub




Abstract
DESCRIPTION (provided by applicant): Newborn screening is currently performed by collecting dried bloodspots from infants and then sending them to a lab for analysis. It is primarily performed to detect disorders which lead to severe physical and mental disabilities. There is an increasing necessity to screen for a number of lysosomal storage disorders for which therapies are becoming available. Tandem mass spectrometry is a multiplex detection technology widely utilized in newborn screening, but when applied to enzyme assays it is expensive, time consuming, and labor intensive. There is a need for an inexpensive, rapid, and automated technology for performing newborn screening assays. A digital microfluidic cartridge, which is essentially a liquid handlingsystem operating on sub- microliter droplets, has been developed for performing fluorometric enzymatic assays for screening lysosomal storage disorders using dried blood spots. This system is configured to enable walkaway automation and multiplex severalassays inexpensively. In phase II, we have successfully demonstrated assays for Pompe, Fabry, Gaucher, Hunter and Hurler disorders using a single punch from a dried blood spot. The digital microfluidic method compared favorably with a gold standard fluorometric enzymatic method performed in microtiter plates at Duke University for all the 5 disorders. The digital microfluidic system is currently under a pilot trial in the Illinois Newborn Screening Laboratory. Over 6,000 dried blood spots have been screened for Pompe, Fabry, and Gaucher during the ongoing pilot study. Following a positive results on this platform, 4 infants were further confirmed with Fabry disease and 1 infant with Gaucher disease. Phase IIB continuation will focus on addressing several user issues that were identified during the pilot trial, submission of a 510(k) application to the FDA, and expansion of the newborn screening assay panel to include other LSDs which are mandated or which have therapies available/under development.PUBLIC HEALTH RELEVANCE: Newborn screening is performed on almost every infant born in the US. Due to the availability of therapies, there is a growing interest in adding lysosomal storage disorders (LSDs) to the panel of tests. In this project, a cost-effective microfluidic platform will be developed and validated for newborn screening of LSDs. Illinois, Missouri and New Mexico have mandated laws requiring screening all the babies for LSDs and availability of this inexpensive platform will make it affordable for cash-strapped states. During a limited pilot trial of this platform in Illinois, some babies with LSDs were already identified.

* information listed above is at the time of submission.

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