| Autor: |
Mary C. Boulanger, MD, Jennifer S. Temel, MD, Mari Mino-Kenudson, MD, Lauren L. Ritterhouse, MD, PhD, Ibiayi Dagogo-Jack, MD |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
JTO Clinical and Research Reports, Vol 4, Iss 4, Pp 100501- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2666-3643 |
| DOI: |
10.1016/j.jtocrr.2023.100501 |
| Popis: |
The NTRK genes encode the TRK proteins. NTRK fusions lead to constitutively active, ligand-independent downstream signaling. NTRK fusions are implicated in up to 1% of all solid tumors and 0.2% of NSCLC. Larotrectinib, a highly selective small molecule inhibitor of all three TRK proteins, has a response rate of 75% across a wide range of solid tumors. Mechanisms of primary resistance to larotrectinib are not well understood. We report a case of a 75-year-old male with minimal smoking history with NTRK fusion-positive metastatic squamous NSCLC with primary resistance to larotrectinib. We suggest subclonal NTRK fusion as a possible mechanism contributing to primary resistance to larotrectinib. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
