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Outcomes of Intraocular Metastasis From Lung Cancer in the Era of Targeted Therapy: A Systematic Review and Pooled Analysis

Published:August 06, 2022DOI:https://doi.org/10.1016/j.cllc.2022.07.018

      Abstract

      Introduction

      Metastasis to intraocular structures is a serious problem in lung cancer. Due to its rarity, however, limited information is available regarding the outcomes of treatment and prognosis. Literature often suggests a poor prognosis. We review current literature on the outcomes of systemic therapy and prognostic factors.

      Methods

      We conducted a systematic review of English literature published during 2009 to 2022 identified via Medline and Google Scholar search. Publications reporting on tumor response in the eyes or overall survival of patients with intraocular metastasis due to lung cancer were included. Pooled analysis of patients receiving systemic therapy was performed, utilizing individual-level patient data.

      Results

      A total of 79 publications contributed 92 patients into the analysis. Choroid was the most affected intraocular structure, in 82% of patients. Histology was small cell in 13% and non-small cell in 87%. Targeted therapy was utilized in 45% of patients. A pooled analysis demonstrated that the median overall survival was 27 months (95% CI: 21.8-32.2). Visual response among those with reported assessment showed that 92% of them had stable or improved vision while 8% experienced worsening of vision. Several factors including the year of treatment, age, targeted therapy, and radiation showed a significant association with survival. The strongest predictor of improved survival was the receipt of targeted therapy, with a hazard ratio of 0.31 (95% CI: 0.14-0.71), P = .005.

      Conclusions

      For lung cancer patients with intraocular metastasis, systemic therapy can produce a favorable outcome. Particularly when a targeted therapy is feasible, long-term survival can be achieved.

      Keywords

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