A Global, Phase 3, Randomized, Multicenter, Open-Label Study to Evaluate the Efficacy and Safety of Firmonertinib Compared With Investigator's Choice of Osimertinib or Afatinib as First-Line Treatment in Participants Who Have Locally Advanced or Metastatic Non-Small-Cell Lung Cancer With Epidermal Growth Factor Receptor P-Loop and Alpha C-Helix Compressing (PACC) Uncommon Mutations (ALPACCA)

Key Eligibility Criteria: * Histologically or cytologically documented, locally advanced or metastatic Non-Small Cell Lung Cancer (NSCLC) not amenable to curative surgery or radiotherapy. * Documented results of the presence of an Epidermal Growth Factor Receptor (EGFR) PACC mutation in tumor tissue or blood from local testing. * No prior systemic anticancer therapy regimens received for locally advanced or metastatic Non-Small Cell Lung Cancer (NSCLC) including prior treatment with any Epidermal Growth Factor Receptor (EGFR)-targeting agents (e.g., previous (EGFR) TKIs, monoclonal antibodies…