Eye Cancer, Intraocular Melanoma

This study is being done to find the best dose of an investigational drug called NBM-BMX for people with metastatic uveal melanoma, a type of eye cancer that has spread to other parts of the body. The study will help doctors learn about the side effects of NBM-BMX, how the drug is processed in the body, and whether it may slow down or shrink tumors. Participants will take NBM-BMX as a capsule by mouth twice daily on an empty stomach with at least six ounces (180 mL) of water. No food or drink (other than water) should be consumed for at least two hours after each dose. Participants will visit the clinic about once every week or two for exams and blood tests while taking NBM-BMX. After stopping treatment, a follow-up visit will occur about 30 days later. Treatment may continue as long as the cancer does not get worse and side effects remain manageable.

Uveal melanoma (UM) is the most common type of cancer inside the eyes of adults. Almost half of all patients diagnosed with UM will eventually develop metastases. Once metastases occur, the median patient survival is short. In this trial, we will test if treatment with Melatonin after primary tumor diagnosis can prevent or delay the development of metastases. 100 patients diagnosed with primary UM will be randomized to either treatment with Melatonin tablets (20 mg at night), or to a control group. Both groups will be followed for 5 years. At 5 years, the number of patients that have developed metastases in the Melatonin and control groups will be compared (primary outcome measure).