Very sorry to hear about your husband. My husband was diagnosed with Stage IV Melanoma in January. The tumors were spread throughout his body. He is currently in a clinical trial at UCSF that is working wonders. Contact Dr. Daud or Dr. Algazi at UCSF about this and other trials for Melanoma. Stanford is also conducting trials.
If he can’t get on a trial, then Ipilimumab (which I think has been officially renamed Veroy) was given FDA approval in the past couple of months. It has been shown to be much more effective than anything else that was available.
All very best wishes,
Jan