Last updated on June 2019

Radiation Therapy With Concomitant and Adjuvant Temozolomide Versus Radiation Therapy With Adjuvant PCV Chemotherapy in Patients With Anaplastic Glioma or Low Grade Glioma


Brief description of study

Radiation therapy uses high-energy x-rays to kill tumor cells. 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. It is not yet known whether giving radiation with concomitant and adjuvant temozolomide versus radiation with adjuvant PCV is more effective in treating anaplastic glioma or low grade glioma.

Detailed Study Description

This study will be a randomized phase III for patients with newly diagnosed co-deleted 1p/19q anaplastic glioma or high risk low grade glioma. The trial will only enroll patients with 1p/19q co-deletion. This study includes two arms as described in the "Arms" section. A dynamic allocation procedure will be used to allocate an equal number of patients to different arms (Arms A:B = 1:1). This procedure will balance the marginal distributions of the stratification factors among arms. The stratification factors that will be used are cooperative groups (EORTC vs. all North American groups), age ( 50 vs. > 50), performance score (ECOG 0-1 vs. 2), and tumor grade (anaplastic glioma vs. low grade glioma).

The primary goal is to determine whether patients who receive radiotherapy with concomitant temozolomide (TMZ) followed by adjuvant temozolomide (RT + TMZ --> TMZ) (Arm B) have a marginally better progression free survival (PFS) as compared with patients who receive radiotherapy followed by PCV chemotherapy (RT --> PCV)(Arm A).

Secondary Goals:

  1. Time to Progression - To determine whether patients who receive (RT + TMZ --> TMZ) have a significantly longer time to progression (clinical or radiographic progression) as compared with patients who receive radiotherapy followed by adjuvant PCV chemotherapy (RT --> PCV).
  2. Correlation between exploratory biomarkers and survival - To determine whether there is a difference in survival based on t(1;19)(q10, p10) translocation status and MGMT promoter hypermethylation status.
  3. Descriptive Comparisons of Additional Secondary Endpoints - To perform descriptive comparisons of additional secondary outcome endpoints, including overall survival, objective tumor response, prognostic factor analysis and quality of life.
  4. Toxicity - To determine the toxicity of the treatment in each arm and perform descriptive comparisons.
  5. Neurocognitive and Quality of Life (QOL) Effects - To determine the neurocognitive and QOL effects in patients treated on this protocol and correlate these results with outcome endpoints.
  6. Banking of Biospecimens and Neuroimaging Studies - To store blood products (i.e., plasma, DNA and buffy coat), tumor tissue and MRI/CT images for future scientific investigations.

After completion of study treatment, patients are followed every 12 weeks for 1 year, then every 4 months for 2 years and then every 6 months until progressive disease or until the end of study participation.

Clinical Study Identifier: NCT00887146

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