Clinical features and treatment outcomes of progressive uveal melanoma

Milda Rancelyte, Justinas Pamedys, Ruta Grigiene, Birute Brasiuniene


Uveal melanoma (UM) is a rare malignant tumor that differs from cutaneous melanoma in terms of pathogenesis, clinical behavior, and treatment response. Despite treatment for the primary tumor, 50% of UM patients develop metastatic disease, with the liver being the most affected organ. Furthermore, UM responds poorly to chemotherapy and immune checkpoint inhibitors. We present a clinical case of a 58-year-old female patient who was diagnosed with right eye choroidal melanoma cT2aN0M0. For the treatment of the initial tumor, the patient received stereotactic radiotherapy. However, 11 months after the initial diagnosis, the disease had progressed to the liver. The patient underwent radiofrequency ablation of liver metastases, then as the UM progressed - anti-PD-1 immunotherapy with nivolumab and ipilimumab were prescribed for the first-line palliative systemic treatment, later chemotherapy with dacarbazine (5 cycles) as the second-line systemic treatment. Based on the FoundationOne®CDx findings and an overview of clinical trials data, the MEK inhibitor trametinib was prescribed as a third-line palliative treatment. The patient died due to cancerous intoxication, with overall survival (OS) of 28 months (∼2.33 years) and a progression-free survival (PFS) of 11 months (∼0.92 years) since the initial diagnosis. Treatment-related adverse events could have an impact on the general health condition of the patient.


uveal melanoma; immunotherapy; targeted therapy; chemotherapy; next-generation sequencing

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