The Use of Genetics in Guiding Therapy
The FDA and PGx-Related Drug Label Updates

June 2012
The second PGx application that I would like to discuss is warfarin pharmacogenetics, which has 2 FDA-issued label warnings. The first was issued in August 2007, and was in reference to warfarin sensitivity in CYP2C9 poor metabolizers. The second warfarin label update was issued in January, 2010, and this label included the effect of a second gene, VKORC1, as well as a table with PGx guided dosing ranges for the drug.
FDA & PGx-Related Drug Label Updates |
Jump to section:
- Introduction
- Pharmacogenomics
- PGx Biomarkers in Drug Labels
- FDA-Approved Drugs with PGx-Related Label Information
- FDA-Approved Drugs with PGx-Related Label Information
- The FDA and PGx-Related Drug Label Updates
- Clopidogrel (Plavix)
- CYP2C19 and Response to Clopidogrel
- CYP2C19 and Response to Clopidogrel (cont)
- CYP2C19 PGx Testing for Clopidogrel
- Mayo CYP2C19 Test
- The FDA and PGx-Related Drug Label Updates
- Warfarin
- Warfarin PGx
- Allele Frequencies
- Medco-Mayo Warfarin Effectiveness Study
- Mayo Test for Warfarin Sensitivity
- FDA-Approved Drugs with PGx-Related Label Information
- Most Psychotropic Medications Are Metabolized by CYPs
- CYP450 Testing — Psychotherapeutics
- CYP2D6
- Mayo Test for CYP2D6
- Mayo Tests for CYP2D6
- Additional Mayo Tests for Psychiatric Applications
- The FDA and PGx-Related Drug Label Updates
- UGT1A1
- Irinotecan Metabolism
- UGT1A1 Genetic Variants
- Mayo Tests for UGT1A1
- The FDA and PGx-Related Drug Label Updates
- Human Leukocyte Antigens and Drug Hypersensitivity
- HLA-B*1502
- Mayo Test for HLA-B*1502
- HLA-B*5701
- Mayo Test for HLA-B*5701
- Summary
- Questions


