[2][3][4][5][6] He founded and directed the Simonton Cancer Center (SCC) in Malibu (USA) and was one of the pioneers of psycho-oncology.
Key elements of his philosophy and techniques affect the practical consulting work in the psycho-oncology in the United States, Europe and Japan.
However, an investigation into five of his most impressive cases discovered that some of his patients had undergone standard treatment or probably did not have cancer to begin with.
[3] Physician Edward R. Friedlander, who investigated Simonton's techniques in depth, noted that although some patients found his approach helpful, his case histories are "very poor evidence" for the claim that his treatment controls tumours.
[4] Psychologist Tomasz Witkowski devoted a whole chapter of his book Psychology Led Astray: Cargo Cult in Science and Therapy to Simonton and his method and concluded: "A deadly illness and its terminus are extreme situations; too difficult to be judged from the perspective of an outsider.