Choroidal metastasis response to crizotinib in a ROS1-rearranged NSCLC patient

Stephanie Lu1, Michele C Azada2, Sai-Hong Ignatius Ou3

  • 1Gavin Herbert Eye Institute, Department of Ophthalmology, University of California Irvine School of Medicine, Orange, CA 92868, United States.

Abstract

Insights

Choroidal metastases from ROS1-rearranged non-small cell lung cancer (NSCLC) are rare but treatable. Crizotinib, a targeted therapy, showed rapid and complete response in a patient unresponsive to chemotherapy.

Area of Science:

  • Oncology
  • Ophthalmology
  • Genetics

Background:

  • Choroidal metastases are uncommon in non-small cell lung cancer (NSCLC).
  • Improved survival in NSCLC due to targeted therapies may increase the incidence of choroidal metastases.
  • Anaplastic lymphoma kinase (ALK)-driven NSCLC with choroidal metastases has shown response to crizotinib.

Observation:

  • This report details a patient with ROS1-rearranged NSCLC presenting with choroidal metastases.
  • The patient's metastases did not respond to initial chemotherapy.
  • A rapid and complete response to crizotinib was observed.

Findings:

  • ROS1-rearranged NSCLC shares clinicopathologic similarities with ALK-rearranged NSCLC.
  • Crizotinib, a multi-targeted tyrosine kinase inhibitor, is effective against ROS1-rearranged NSCLC.
  • Choroidal metastases in ROS1-rearranged NSCLC can be successfully treated with crizotinib.

Implications:

  • Crizotinib represents a potential treatment for rare cases of choroidal metastases in ROS1-rearranged NSCLC.
  • This finding aligns with successful crizotinib treatment for choroidal metastases in ALK-rearranged NSCLC.
  • Further investigation into targeted therapies for rare NSCLC metastases is warranted.