Companion diagnostic
A diagnostic test co-developed with a drug to identify suitable patients.
A companion diagnostic is a test co-developed with a therapeutic drug to determine its applicability to a specific person. It aids in selecting or excluding patient groups based on biological characteristics that predict likely response or severe toxicity. For instance, an immunohistochemistry staining machine for HER2 expression is classified by the FDA as a companion diagnostic device for trastuzumab.
Quick Facts
- Purpose
- to determine the correct therapeutic agent for an individual
Facts from the source article.
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