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Molecular Profile KIT W557C KIT K558_V560del
Therapy Ponatinib
Indication/Tumor Type gastrointestinal stromal tumor
Response Type predicted - sensitive

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
KIT W557C KIT K558_V560del gastrointestinal stromal tumor predicted - sensitive Ponatinib Case Reports/Case Series Actionable In a clinical study, a GIST patient harboring KIT K558_V560del and KIT W557C, resistant to Gleevec (imatinib), Sutent (sunitinib), and Stivarga (regorafenib), demonstrated sensitivity when treated with Iclusig (ponatinib), which resulted in a radiologic response and stabilization for six months (PMID: 25239608). 25239608
PubMed Id Reference Title Details
(25239608) Ponatinib inhibits polyclonal drug-resistant KIT oncoproteins and shows therapeutic potential in heavily pretreated gastrointestinal stromal tumor (GIST) patients. Full reference...