Abstract
Aim: To assess time-to-treatment failure (TTF) in US patients with EGFR mutation-positive non-small-cell lung cancer (NSCLC) who received sequential afatinib–osimertinib treatment in the global, observational GioTag study.
Patients & methods: Patients had EGFR T790M mutation-positive disease after first-line afatinib and subsequently received osimertinib. The primary outcome was TTF.
Results: In 129 patients at US centers, median TTF was 28.4 months (90% CI: 27.0–34.1). Median overall survival was 47.6 months (90% CI: 35.5–51.5).
Conclusion: Sequential afatinib–osimertinib in this US-treated population was associated with long median TTF and represents an effective, evidence-based treatment option for US patients with EGFR mutation-positive NSCLC not presenting with active brain metastases or de novo T790M
