Table 3. . Radiographic response rates to procarbazine, lomustine and vincristine or temozolomide.

	Response rate (%)
	Procarbazine, iomustine and vincristine	Temozolomide
Recurrent anaplastic oligodendrogliomas, chemotherapy naive	63 [22]	53 [26]
Newly diagnosed anaplastic oligodendrogliomas	63–79 [10,23,24,10]	9–75 [20,27,28,20]