Conditions: Glioblastoma
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 99
Healthy volunteers: no

Brief summary:
The primary purpose of the study is to evaluate the efficacy and safety of early postsurgery temozolomide chemotherapy followed by the standard temozolomide regimen, compared to the standard regimen alone, for the treatment of patients with newly diagnosed glioblastoma multiforme.

Detailed description:

Arms:
arm 1: Standard therapy regimen:

Treatment will start 4 weeks after surgery. Temozolomide will be administered concomitantly with radiotherapy, at 75 mg/m\^2/day orally for 42 days. Four weeks after completing concomitant radiotherapy, temozolomide will be administered for an additional six cycles. Each cycle will last 28 days, and temozolomide will be administered once daily from Day 1 to Day 5 of each cycle. The dose of temozolomide in the first cycle will be 150 mg/m\^2/day, and may be increased to 200 mg/m\^2/day for Cycle 2 and subsequent cycles depending on nonhematological toxicity observed and neutrophil and platelet count values. Capsules containing 20 mg or 100 mg of temozolomide will be used.

Radiotherapy will be administered in combination with temozolomide. Radiotherapy will be administered for a total daily dose of 60 Gy in 30 fractions, 5 days a week for 6 weeks. arm 2: Early postsurgery temozolomide chemotherapy plus standard regimen:

Treatment with temozolomide alone will start 2 weeks after surgery at 75 mg/m\^2/day orally for 14 days. Then, starting on Day 29 after surgery, temozolomide will be administered according to standard treatment as described for the temozolomide + radiation arm (standard therapy regimen).

Radiotherapy will be administered in combination with temozolomide. Radiotherapy will be administered for a total daily dose of 60 Gy in 30 fractions, 5 days a week for 6 weeks.

Interventions: intervention 1: Temozolomide intervention 2: Radiotherapy
Intervention descriptions: intervention 1: None intervention 2: None

Protocol document: