Management of Dry Eye Toxicity After Treatment with 177 Lu-PSMA-617 Radioligand Therapy.

Treatment options for patients with metastatic castration-resistant prostate cancer include use of radioligand therapy with 177Lu-PSMA-617. 177Lu-PSMA-617 is used to selectively target prostate cancer cells by targeting prostate specific membrane antigen (PSMA); however, PSMA is also expressed on lacrimal glands among other tissues. Herein, we report on a case of a CTCAE v5 grade 3 dry eye event with concomitant blepharitis following administration of 177Lu-PSMA-617. He was managed with neomycin-polymyxin-dexamethasone 3.5-10000-0.1 ophthalmic suspension, artificial tears, lubricating ointments, lid scrubs, and oral antihistamines.