Efficacy and Safety Study of Lomustine/Temozolomide Combination Therapy vs. Standard Therapy for Glioblastoma Patients

Inclusion criteria

• written informed consent
• patients have to be in a cognitive state that allows them to understand the rationale and necessity of study therapy and procedures.
• newly diagnosed histologically proven GBM or gliosarcoma WHO Grad IV
• methylated MGMT promoter in the tumor
• estimated life expectancy of at least 12 weeks
• Karnofsky Performance Score (KPS) ≥ 70%
• patient compliance and geographic proximity that allow adequate follow up
• male and female patients with reproductive potential must use an approved contraceptive method
• pre-menopausal female patients with childbearing potential: a negative serum pregnancy test must be obtained prior to treatment start
• Adequate organ function as described below:

Adequate bone marrow reserve:

white blood cell (WBC) count > 3000/µl, granulocyte count >1500/µl, platelets > 100000/µl, haemoglobin ≥ 10 g/dl Adequate liver function bilirubin < 1.5 times above upper limit of normal range (ULN), ALT and AST < 3 times ULN creatinine < 1.5 times ULN

Adequate blood clotting:

PT and PTT within normal limits Negative HIV test

Exclusion criteria

• prior malignancy
• prior chemotherapy
• prior radiotherapy to the brain
• concurrent administration of any other anti-tumor therapy
• allergy or other intolerability of temozolomide, CCNU, dacarbazine or other nitrosourea derivatives
• unable to undergo MRI
• past medical history of diseases with poor prognosis
• known HIV infection, active Hepatitis B or C infection
• any active infection
• female patients that are pregnant or breastfeeding
• patients with reproductive potential who do not accept to use contraception
• treatment in another clinical trial
• any psychological, cognitive, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up scheduled visits (at the discretion of investigator)