HER2 insertion YVMA mutant lung cancer: Long natural history and response to afatinib

Lung Cancer. 2015 Dec;90(3):617-9. doi: 10.1016/j.lungcan.2015.10.025. Epub 2015 Oct 29.

Abstract

Human epidermal growth factor 2 (HER2, ERBB2) mutations in lung cancers are oncogenic drivers that respond to HER2 targeted therapies. Little is known about the sensitivity of subtypes of HER2 mutant lung cancers to targeted agents. We present a patient with HER2 mutant lung cancer with a 12 base pair insertion YVMA (p.A775_G776insYVMA), who had a long natural history and durable partial response to afatinib. We demonstrate that afatinib has activity in patients with HER2 mutant lung cancers with exon 20 YVMA insertions, the most common variant.

Keywords: Afatinib; Human epidermal growth factor receptor 2 (HER2); Lung cancer; Mutation; Targeted therapy.

Publication types

  • Case Reports
  • Research Support, N.I.H., Extramural

MeSH terms

  • Afatinib
  • Antineoplastic Agents / therapeutic use
  • Humans
  • Immunohistochemistry
  • Lung Neoplasms / diagnosis
  • Lung Neoplasms / drug therapy
  • Lung Neoplasms / genetics*
  • Male
  • Middle Aged
  • Mutagenesis, Insertional*
  • Protein Kinase Inhibitors / therapeutic use
  • Quinazolines / therapeutic use
  • Receptor, ErbB-2 / antagonists & inhibitors
  • Receptor, ErbB-2 / genetics*
  • Receptor, ErbB-2 / metabolism
  • Tomography, X-Ray Computed
  • Treatment Outcome

Substances

  • Antineoplastic Agents
  • Protein Kinase Inhibitors
  • Quinazolines
  • Afatinib
  • Receptor, ErbB-2