This phase I/II trial is studying the side effects and best dose of motexafin gadolinium when given together with temozolomide and radiation therapy and to see how well they work in treating patients with newly diagnosed supratentorial glioblastoma multiforme or gliosarcoma. Drugs used in chemotherapy, such as temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Motexafin gadolinium may help temozolomide work better by making tumor cells more sensitive to the drug. Radiation therapy uses high-energy x-rays to kill tumor cells. Motexafin gadolinium may also make tumor cells more sensitive to radiation therapy. Giving motexafin gadolinium together with temozolomide and radition therapy may kill more tumor cells.
PRIMARY OBJECTIVES: I. Determine the maximum tolerated dose of motexafin gadolinium (MGd) when given concurrently with temozolomide and radiotherapy in patients with newly diagnosed supratentorial glioblastoma multiforme (GBM) or gliosarcoma. II. Estimate the overall survival of patients treated with concurrent radiotherapy, temozolomide, and MGd followed by post-radiation temozolomide. III. Determine the short- and long-term adverse effects in patients treated with this treatment. IV. Estimate the progression-free survival of patients with newly diagnosed supratentorial GBM or gliosarcoma treated with this regimen. OUTLINE: This is a multicenter, dose-escalation study of motexafin gadolinium (MGd). PHASE I: Patients undergo radiotherapy once daily on days 1-5, 8-12, 15-19, 22-26, 29-33, and 36-40. Beginning the night before the first dose of radiotherapy and ending the night before the last dose of radiotherapy, patients receive concurrent oral temozolomide once daily on days 0-39. Patients also receive MGd IV over 30 minutes prior to radiotherapy once daily on days 1-5 and 8-12 and then on days 15, 17, 19, 22, 24, 26, 29, 31, 33, 36, 38, and 40. Beginning 28 days after the completion of radiotherapy, patients receive oral temozolomide once daily on days 1-5. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression or unacceptable toxicity. Cohorts of 3-7 patients receive escalating doses of MGd until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which no more than 6 eligible patients experience dose-limiting toxicity. PHASE II: Patients undergo radiotherapy and receive temozolomide as in phase I. Patients also receive MGd as in phase I at the MTD determined in phase I. After completion of study treatment, patients are followed every 2 months for 1 year, every 3 months for 2 years, every 6 months for 3 years, and then annually thereafter.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
118
Mobile Infirmary Medical Center
Mobile, Alabama, United States
Arizona Oncology Services Foundation
Scottsdale, Arizona, United States
The University of Arizona Medical Center-University Campus
Tucson, Arizona, United States
East Bay Radiation Oncology Center
Castro Valley, California, United States
Eden Hospital Medical Center
Castro Valley, California, United States
Maximum Tolerated Dose of MGd (Phase I)
Patients were to be followed for a minimum of 90 days from the start of radiation therapy (RT) and carefully evaluated with respect to treatment morbidity. A dose limiting toxicity (DLT) was defined as a grade 4 neurologic adverse event (AE) considered to be related to treatment occurring within 21 days of the conclusion of RT. For each dose level, up to seven patients were to be accrued to assure that there would be six eligible for treatment adverse event evaluation. A dose level of MGd was considered acceptable if no more than 1 patient of the 6 experience a DLT. If the current level was considered acceptable, then dose escalation occurred. Otherwise, the preceding dose level would be declared the maximum tolerated dose (MTD). The MTD would be used for the Phase II arm. Rating scale: 0 = not the MTD, 1 = MTD
Time frame: From start of radiation therapy to 90 days,
Median Overall Survival (Phase II)
Survival time was defined as the time from baseline to date of death from any cause. Patients last known to be alive are censored at date of last contact.
Time frame: From randomization to date of death or last follow-up. Analysis occurs after all patients have been potentially followed for at least 18 months. Patients were followed up to 54.3 months
Progression-free Survival (Phase II)
Progression will be defined as a \> 25% increase in tumor area. Progression-free survival time was defined as the time from baseline to date of death from any cause. Patients last known to be alive are censored at date of last contact.
Time frame: From randomization to date of progression, death, or last follow-up. Analysis occurs after all patients have been potentially followed for at least 18 months. Patients were followed up to 54.3 months.
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