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General Session 4: Pharmacogenomics

General Session 4: Pharmacogenomics. FDA Pharmacogenomic Guidances. April 2003, CDRH: Multiplex Tests for Heritable DNA Markers, Mutations and Expression Patterns: Draft Guidance for Industry and FDA Reviewers. http://www.fda.gov/cdrh/oivd/guidance/1210.pdf

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General Session 4: Pharmacogenomics

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  1. General Session 4: Pharmacogenomics

  2. FDA Pharmacogenomic Guidances April 2003, CDRH: Multiplex Tests for Heritable DNA Markers, Mutations and Expression Patterns:Draft Guidance for Industry and FDA Reviewers. http://www.fda.gov/cdrh/oivd/guidance/1210.pdf March 2004, CDER:Pharmacogenomic Data Submissions. http://www.fda.gov/cber/gdlns/pharmdtasub.htm April 2005, CDER/CDRH/CBER/OCP: Drug-Diagnostic Co-development Concept Paper http://www.fda.gov/cder/genomics/pharmacoconceptfn.pdf

  3. Roche AmpliChip CYP450 Test (CDRH de novo 510(k) K042259) Genotypes two cytochrome P450 genes (29 polymorphisms in CYP2D6 gene, 2 in CYP2C19) to provide the predictive phenotype of the metabolic rate for a class of therapeutics metabolized primarily by CYP2D6 or CYP2C19 gene products. The phenotypes are (1) Poor metabolizers: (3) Extensive metabolizers: (2) Intermediate metabolizers: (4) Ultrarapid metabolizers: Cytochrome P450s are a large multi-gene family of enzymes found in the liver, and are linked to the metabolism of approximately 70-80% of all drugs. Among them, the polymorphic CYP2D6 and CYP2C19 genes are responsible for approximately 25% of all CYP450-mediated drug metabolism. A polymorphism in these enzymes can lead to an excessive or prolonged therapeutic effect or drug-related toxicity after a typical dose by failing to clear a drug from the blood or by changing the pattern of metabolism to produce toxic metabolites. http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfPMN/pmn.cfm

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