. >> reporter: the vaccine triggers the body's immune system to attack multiple spots on the tumor's cells. >> smallpox works. polioaccine work. you're allowing your own body to combat this karnes which san irregularity anyway. >> i don't think it's appropriate to use the word "cure" with glioblastoma i think we want to turn this into a chronic disease like hypertension or diabetes that takes medicine that allows you to live a normal life. >> reporter: so far, dr. parsa's small trial has shown remarkable results. more than a year into the clinical trial, none of the eight patients have had their tumors come back. with tradition treatment, fewer than a third of glioblastoma patients survive a year. >> it's really encouraging. >> reporter: a year after his diagnosis, steve hall feels well enough to dance. letting a father and daughter share one of life's precious moments. >> i can tell you as a father of three girls myself, steve, i am just so glad you were there. dr. parsa, a lot of his work is funded by federal grants also by advocacy organizations such as the national brain tumor society. so far, clinical results