Glioblastoma
The most common length of survival following diagnosis is 12 to 15 months, with fewer than 3% to 5% of people surviving longer than five years. Without treatment survival is typically 3 months.
Astrocytoma
A genome-wide pattern of DNA copy-number alterations (CNAs) has been uncovered, which is correlated with a patient’s survival and response to treatment. This pattern identifies among glioblastoma as well as lower-grade astrocytoma patients a subtype, where the CNA genotype is correlated with an approximately one-year survival phenotype.