John P. Clark is the Chief Executive Officer at Global Cancer Technology. He started his career selling medical equipment then progressed to other, larger challenges. It wasn't long before he was importing medical equipment from offshore and obtaining FDA approvals for domestic distribution. John then began to produce clinical machines that treated brain tumors non-invasively with cobalt-60 radiation which led to the development of a free-standing brain tumor treatment center: he made that happen by raising millions of dollars. Today, John is focused on raising capital to commercialize innovative nanoparticle technology for application in the treatment of deadly diseases like COVID and cancer.