1.Adding Temozolomide (Temodar®) to Radiation Increases Survival in Glioblastoma Multiforme (Posted: 06/07/2004) - Adding the drug temozolomide (Temodar®) to radiation therapy for the treatment of a brain tumor called glioblastoma multiforme increased survival in a large randomized trial conducted in Canada and Europe. While this approach has been customary in the United States for several years, these findings are definitive and should establish this approach as the standard of care.