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Predictive, Diagnostic evidence:
Predictive: The study discusses how patients with acquired MET alterations may derive clinical benefit from therapies that target both ALK and MET, indicating a correlation between the presence of these alterations and response to treatment. This suggests that MET amplification is associated with resistance to ALK inhibitors and that targeting MET can improve treatment outcomes.
Diagnostic: The abstract mentions that MET amplification was detected in 15% of tumor biopsies from patients relapsing on next-generation ALK inhibitors, which indicates that MET alterations can be used to classify or confirm a specific subtype of resistance in ALK-positive lung cancer. This association highlights the role of MET amplification as a biomarker for identifying patients who may experience ALK-independent resistance.