Figure 4. GDC-0919 enhances radiation response in glioblastoma.
TRP tumors were grown (A) subcutaneously (SC) or (B) & (C) intracranially (IC) in immune competent C57BL/6 mice. MRI was obtained to confirm the establishment of IC tumors prior to the initiation of therapy. Following establishment of tumors, mice were randomized to treatment as described in schema. GDC-0919 was given orally at a concentration of 200 mg/kg twice a day (six days a week) for 2–3 weeks. Each treatment arm consisted of a minimum of 6 mice. ** = p<0.005.