MDx/CDx Focus: FDA Okays PML Risk Test for Tysabri; MDxHealth Gets CLIA Nod; NY Approves AssurRx Lab | GenomeWeb

FDA Greenlights Quest's PML Risk Test for Patients Prescribed Tysabri

The US Food and Drug Administration has granted a de novo classification petition for Quest Diagnostics' Stratify JCV Antibody ELISA testing service for predicting the risk of progressive multifocal leukoencephalopathy, or PML, in patients receiving Tysabri.

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