Eflornithine is an agent that can be used to treat glioma, especially glioma of WHO Grade II or Grade III such as anaplastic glioma. Eflornithine can suppress or prevent mutations in glioma which can cause the glioma to progress to a higher grade. Compositions and methods can include eflornithine or a derivative or analog of eflornithine, together with other agents such as conventional anti-neoplastic agents for treatment of glioma, inhibitors of polyamine transport, polyamine analogs, or S-adenosylmethionine decarboxylase inhibitors.
