BRAF V600 Mutation clinical trials at UCSF

This phase II trial studies how well de-escalating the drugs dabrafenib and trametinib works in treating patients with low-grade gliomas that have a BRAF V600 gene mutation. Dabrafenib and trametinib are in a class of medications called kinase inhibitors. They work by blocking the action of abnormal proteins that signals tumor cells to multiply. This helps stop the spread of tumor cells. This trial may help doctors determine the best dosing strategy for patients who have received dabrafenib and trametinib for 12-24 months: Either stopping dabrafenib and trametinib completely or slowly reducing the dose for an additional 6 months.

This phase II trial studies how well the combination of dabrafenib and trametinib works after radiation therapy in children and young adults with high grade glioma who have a genetic change called BRAF V600 mutation. Radiation therapy uses high energy rays to kill tumor cells and reduce the size of tumors. Dabrafenib and trametinib may stop the growth of tumor cells by blocking BRAF and MEK, respectively, which are enzymes that tumor cells need for their growth. Giving dabrafenib with trametinib after radiation therapy may work better than treatments used in the past in patients with newly-diagnosed BRAF V600-mutant high-grade glioma.