Opinion statement
Care should be taken to ensure that the diagnostic strategy for a recently diagnosed advanced non-small cell lung cancer includes NTRK fusion testing. RNA sequencing is the gold standard method of detection of NTRK fusion; however, pan-TRK immunohistochemistry could be used as a screening method with good sensitivity. Larotrectinib and entrectinib are approved therapies for TRK fusion-positive lung cancers as first or subsequent lines of therapy. TRK inhibition has demonstrated clinically meaningful, deep, and durable systemic and central nervous system responses. Larotrectinib and entrectinib have a manageable safety profile, including some TRK-related adverse events, such as dizziness and weight gain. At disease progression on first-generation TRK inhibitors, enrollment on a clinical trial should be encouraged, as new-generation TRK inhibitors are being tested.
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Guilherme Harada declares that he has no conflict of interest. Aline Bobato Lara Gongora declares that she has no conflict of interest. Cesar Martins da Costa declares that he has no conflict of interest. Fernando Costa Santini has received reimbursement for travel and accommodations from and has received compensation for participation on advisory boards from AstraZeneca, Roche, Lilly, Bayer, and MSD.
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Harada, G., Gongora, A.B.L., da Costa, C.M. et al. TRK Inhibitors in Non-Small Cell Lung Cancer. Curr. Treat. Options in Oncol. 21, 39 (2020). https://doi.org/10.1007/s11864-020-00741-z
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DOI: https://doi.org/10.1007/s11864-020-00741-z