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Tukysa

(too-KY-suh)
A drug used with other drugs to treat adults with certain types of HER2-positive breast cancer or certain types of HER2-positive colorectal cancer that do not have a mutation (change) in the RAS gene. It is also being studied in the treatment of other types of cancer. Tukysa blocks a protein called HER2, which may help keep cancer cells from growing and may kill them. It is a type of tyrosine kinase inhibitor. Also called tucatinib.
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