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Session I – Strengths and Weaknesses of the EDSP Screening Assays Moderator: Angelina J. Duggan Exponent Health Group September 9, 2009. Session I Objectives. EPA EDSP update Provide forum to discuss stakeholder’s EDSP perspectives, interpretations and recommendations.
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Session I – Strengths and Weaknesses of the EDSP Screening Assays Moderator: Angelina J. Duggan Exponent Health Group September 9, 2009
Session I Objectives EPA EDSP update Provide forum to discuss stakeholder’s EDSP perspectives, interpretations and recommendations
EDSP Tier 1 Development • More than 10 years since August 2008 EDSTAC Final Report • Validation was a global effort • EPA and international regulators • Academic, industry, government and CRO scientists • Stakeholders recommendations • Implementation and interpretation of Phase 1 EDSP screening will present new challenges and expectations for EPA, stakeholders, industry and NGOs
Challenges and Expectations • Individual and collective interpretation of Tier 1 Phase 1 screening results • Provide guidance to implement mid-course corrections • Provide guidance on weight-of-evidence to proceed to Tier 2 testing (EDTP) • Tier 1 lessons learned and expert recommendations (ILSI, NAS) should be applied in Tier 2 testing validation • Can the EDSP accommodate and compliment new technologies • Genomic technologies • Alternative screening programs (e.g., ToxCast) • Nanotechnology
EPA EDSP Update • Gary Timm, EPA OCSP: “An Update on the Implementation of the EPA’s Endocrine Disruption Screening Program” • EDSP background and path forward • ESTAC’s recommendation • Validation criteria • Timelines to implement test orders and Tier 2 testing validation
EDSP Stakeholder Expert Panel • CRO perspective • Shelley Tyl, RTI, “Challenges in Conducting and Interpreting Tier 1 EDSP Screening Assays: CRO Perspective ” • Registrant /industry assessments • Sue Marty, Dow Chemical Corp., “Mammalian Tier 1 EDSP Screening Assays: What do they tell us?” • Pat Guiney, SC Johnson, “Wildlife Tier 1 EDSP screening assays: What do they tell us?” • Christopher Borgert, Applied Pharmacology and Toxicology Inc., “Staging Screening and Testing”