NCIt definition : A tropomyosin receptor kinase (TRK) inhibitor with potential antineoplastic activity.
Upon administration, utatrectinib binds to TRK, thereby preventing the neurotrophin-TRK
interaction and subsequent TRK activation. This may eventually result in an inhibition
of tumor cell proliferation in TRK-expressing tumor cells. TRK, a receptor tyrosine
kinase activated by neurotrophins, is mutated in a variety of cancer cell types and
plays an important role in tumor cell growth, invasion and survival.;