Low Dose Naltrexone for Metastatic Melanoma, Castrate Resistant Prostate Cancer and Renal Cancer

"4.1 Low Dose Naltrexone (LDN) LDN, 5 mg/day, at approximately 9pm, on an empty stomach, until disease progression, unacceptable toxicity, need for initiation of narcotic analgesia, or removal from protocol treatment according to section 12.0. (1 cycle = 28 days).~LDN, 5mg/ml, will be prepared by the Lifespan hospital pharmacy for patient use for this study."