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The FDA approved capmatinib and tepotinib on May 6, 2020, and February 3, 2021, respectively. Capmatinib is indicated for patients with metastatic non-small cell lung cancer (mNSCLC) whose tumors have a mutation leading to mesenchymal-epithelial transition (MET) exon 14 skipping as detected by an FDA-approved test. Tepotinib is indicated for mNSCLC harboring MET exon 14 skipping alterations. The approvals were based on trials GEOMETRY mono-1 (capmatinib) and VISION (tepotinib). In GEOMETRY mono-1, overall response rate (ORR) per Blinded Independent Review Committee (BIRC) was 68% [95% confidence interval (CI), 48-84] with median duration of response (DoR) 12.6 months (95% CI, 5.5-25.3) in 28 treatment-naïve patients and 41% (95% CI: 29, 53) with median DoR 9.7 months (95% CI, 5.5-13) in 69 previously treated patients with NSCLC with mutations leading to MET exon 14 skipping. In VISION, ORR per BIRC was 43% (95% CI: 32, 56) with median DoR 10.8 months (95% CI, 6.9-not estimable) in 69 treatment-naïve patients and 43% (95% CI, 33-55) with median DoR 11.1 months (95% CI, 9.5-18.5) in 83 previously-treated patients with NSCLC harboring MET exon 14 alterations. These are the first two therapies to be FDA approved specifically for patients with metastatic NSCLC with MET exon 14 skipping.
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http://dx.doi.org/10.1158/1078-0432.CCR-21-1566 | DOI Listing |
Biochem Soc Trans
September 2025
Department of Biochemistry, McGill University, Montréal, QC, Canada.
The MET receptor tyrosine kinase is a pivotal regulator of cellular survival, motility, and proliferation. Mutations leading to skipping of exon 14 (METΔex14) within the juxtamembrane domain of MET impair receptor degradation and prolong oncogenic signaling, contributing significantly to tumor progression across multiple cancer types. METΔex14 mutations are associated with aggressive clinical behavior, therapeutic resistance, and poor outcomes.
View Article and Find Full Text PDFJ Thorac Oncol
September 2025
Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan. Electronic address:
Case Rep Oncol Med
August 2025
Department of Medical Oncology, Hospital General Universitario de Elche, Alicante, Spain.
Oligoprogression in MET Exon 14 skipping (METex14)-mutated non-small cell lung cancer (NSCLC) is clinically challenging, particularly when local therapies are contraindicated. We report the first documented case of a 62-year-old man with oligoprogressive METex14-positive NSCLC who achieved a sustained metabolic response following the addition of docetaxel to ongoing tepotinib therapy after progression on tepotinib monotherapy. Due to prior thoracic irradiation, reirradiation and surgical interventions were deemed not feasible, prompting this systemic combination to maintain MET inhibition while targeting resistant tumor clones.
View Article and Find Full Text PDFClin Cancer Res
August 2025
The University of Texas MD Anderson Cancer Center, Houston, TX, United States.
Purpose: First-line treatment options for MET exon 14 skipping (METex14) mutant metastatic non-small cell lung cancer (NSCLC) vary due to differences in drug approvals and clinical experience. This study investigates factors influencing outcomes with first-line MET tyrosine kinase inhibitors (TKI) versus immune checkpoint inhibitors (ICI)±chemotherapy.
Experimental Design: Clinicopathologic data were collected from patients with metastatic METex14 mutant NSCLC receiving first-line MET TKI or ICI±chemotherapy at five centers.
Lung Cancer (Auckl)
August 2025
Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, People's Republic of China.
Epidermal growth factor receptor kinase domain duplication (EGFR-KDD) is a rare form of EGFR mutation. Unlike the classical mutations such as exon 19 deletion and exon 21 p.L858R point mutation, EGFR-KDD is a special type of large genomic rearrangement (LGR) that results in the duplication of the tyrosine kinase domain at the protein level, leading to the formation of an intramolecular dimer and activation of the EGFR signaling pathway.
View Article and Find Full Text PDF