Scientists have developed breakthrough drugs that cure skin cancer. The treatment is already having “spectacular” effects in seriously ill melanoma patients—and could soon be used to defeat other types of cancer. … One in six patients ravaged by deadly skin cancer are already being cured by the drugs, the European Cancer Congress was told yesterday, with the possibility of more than half being saved with an new combination. … The first is ipilimumab—or “IPI”. According to research presented to the European congress in Amsterdam yesterday, 17 percent of patients are cured by this drug alone. But many more—perhaps more than...