Cemiplimab for Orbital Squamous Cell Carcinoma in 11 Cases

Ophthalmic Plast Reconstr Surg. 2022 Sep-Oct;38(5):496-502. doi: 10.1097/IOP.0000000000002190. Epub 2022 May 3.

Abstract

Purpose: To review the demographics, clinical features, and response of orbital squamous cell carcinoma treated with cemiplimab.

Methods: This is a retrospective multi-institutional series. Patient characteristics, drug dosing, duration, and response to treatment were evaluated.

Results: The study cohort consisted of 11 patients from 5 institutions. All patients received a regimen of 350 mg q 3 weeks and an average of 11.2 cycles (SD 5.8). No patient experienced significant side effects requiring treatment or cessation of cemiplimab. Complete response was achieved in 9 patients (82%) treated with cemiplimab.

Conclusions: Immune checkpoint inhibitors, such as cemiplimab provide a globe-sparing option for the treatment of orbital squamous cell carcinoma. It is important to consider these agents especially when orbital exenteration is the alternative.

MeSH terms

  • Antibodies, Monoclonal, Humanized / therapeutic use
  • Carcinoma, Squamous Cell* / drug therapy
  • Carcinoma, Squamous Cell* / pathology
  • Humans
  • Orbital Neoplasms* / drug therapy
  • Retrospective Studies
  • Skin Neoplasms* / drug therapy

Substances

  • Antibodies, Monoclonal, Humanized
  • cemiplimab