Josef Issels

Josef Maria Issels was a German physician known for promoting an alternative cancer treatment, the Issels treatment. He claimed to cure cancer patients who had been declared incurable by conventional cancer treatments. During Issels' lifetime, his methods were controversial, and in 1961 he was charged with fraud and manslaughter for allegedly promising fraudulent cancer cures and for the subsequent deaths of patients under his care who refused standard cancer treatment. An initial conviction on the manslaughter charge was overturned in 1964 on the grounds that Issels had genuinely believed that his therapy could cure cancer. Since at least 1972 the Issels treatment is described as unproven, and considered ineffective as a treatment for cancer.