PL04.07 FURTHER: A Global, Randomized Study of Firmonertinib at Two Dose Levels in TKI-Naive, Advanced NSCLC with EGFR PACC Mutations

Document Type

Conference Proceeding

Publication Date

9-9-2024

Publication Title

J Thorac Oncol

Abstract

Firmonertinib (also known as furmonertinib) is an oral, highly brain-penetrant EGFR inhibitor with broad activity and selectivity across EGFR mutations. Firmonertinib is approved in China for first-line, advanced NSCLC with EGFR Ex19del/L858R and previously treated advanced NSCLC with EGFR T790M. Firmonertinib has received FDA Breakthrough Therapy Designation for first-line, advanced NSCLC with EGFR ex20ins mutations. P-loop and αC-helix compressing (PACC) mutations represent approximately 12% of EGFR mutations and are similar to ex20ins mutations in narrowing the drug-binding pocket of ATP competitive EGFR inhibitors (Robichaux et al, 2021). Firmonertinib is potent in cell lines harboring EGFR PACC and ex20ins mutations and inhibits tumor growth at doses in PDX models that are clinically relevant (Musib et al, 2022; Nilsson et al, 2024).

Volume

19

Issue

10

First Page

S5

Last Page

S6

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