BTK.md
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## Clinical Relevance
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-The BTK inhibitor Imbruvica (Ibrutinib) had prior FDA approval for use in MCL and MZL which has since been [withdrawn](https://www.drugs.com/history/imbruvica.html) because *primary outcomes from the confirmatory Phase 3 studies studies were considered insufficient to support conversion to full approval.*
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+The BTK inhibitor Imbruvica (Ibrutinib) had prior FDA approval for use in MCL and MZL which has since been [withdrawn](https://www.drugs.com/history/imbruvica.html) because *primary outcomes from the confirmatory Phase 3 studies studies were considered insufficient to support conversion to full approval.* There are some data suggesting a subset of DLBCL patients (with certain genetic features) may benefit from the combination of Ibrutinib with R-CHOP [@wilsonEffectIbrutinibRCHOP2021]. There is no known relevance between BTK mutations and the activity of BTK inhibitors.
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## Relevance tier by entity
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