In this prospective, multicenter, single-arm trial (ChiCTR1800020262), advanced NSCLC patients with HER2 amplification, as determined by next-generation sequencing, were enrolled and administered pyrotinib orally at 400 mg per day….Patients administered pyrotinib as first-line treatment achieved an mPFS of 12.4 months....Pyrotinib provided antitumor efficacy with a manageable safety profile in HER2-amplified NSCLC patients.