This is a phase IV, post-marketing, observational, cohort study for safety and effectiveness evaluation of Amitzo® in Iranian patients with grade III and IV glioma tumors. No control group is considered in the study design. The primary objective is to evaluate the incidence of hepatic injury in patients with grade III and IV glioma tumors, treated with Amitzo®.

This is a phase IV, post-marketing, observational, cohort study to evaluate the safety and effectiveness of Amitzo® in Iranian patients with grade III and IV glioma tumors. To gather the data during the predefined six intervention visits and one follow-up visit of the study, a booklet will be filled by the designated physician. The treatment will be administered during the first 5 days of each 28-day treatment cycle. The primary objective of this study is to evaluate the incidence of hepatic injury in patients with brain tumors treated with Amitzo®. This is a single arm study with a calculated sample size of 100 patients.

Inclusion Criteria:

• Patients with newly diagnosed grade III or IV glial tumors, or patients who have experienced disease recurrence or progression after receiving standard treatment and, based on the treating physician's diagnosis, require treatment with temozolomide
• Patients aged 18-80 years old

Exclusion Criteria:

• Patients without a baseline MRI
• Patients who are unwilling to participate in the study

A total of 100 Iranian patients diagnosed with grade III or IV gliomas and treated with Amitzo® will be enrolled in the study.

Data regarding this study will be shared, upon reasonable request from the investigator.