Clinical Trials Logo

Clinical Trial Summary

The purpose of this study is to explore the efficacy of bevacizumab combined with radiotherapy compared with radiotherapy alone in the treatment of newly diagnosed glioblastoma in the elderly.

- Trial with medicinal product


Clinical Trial Description

This is a randomized (2:1), explorative, parallel-group, open-label, phase II trial in elderly patients with newly diagnosed glioblastoma. In the control arm, patients will receive radiotherapy, in the experimental arm, patients will receive bevacizumab during and after radiotherapy until progression.

Background:

For decades, neurosurgical resection and postoperative radiotherapy have been the cornerstones of treatment for patients with glioblastoma. Most chemotherapeutic agents showed little or no activity in malignant glioma patients, with the possible exception of nitrosoureas. This has changed with the introduction of temozolomide, first shown to be active in recurrent disease (Yung et al. 2000) and more recently in newly diagnosed glioblastoma (Stupp et al. 2005, 2009). This EORTC 26981-22981 NCIC CE.3 trial demonstrated an increase in median survival from 12.1 to 14.6 months and of the 2 year survival rate from 10% to 26% in patients receiving radiotherapy plus temozolomide compared with radiotherapy alone. Notably patients with tumors exhibiting methylation of the promoter region of the O6-methylguanine DNA methyltransferase (MGMT) gene showed a striking benefit from temozolomide (Hegi et al. 2005). Yet, inclusion in this trial was limited to patients up to the age of 70, and subgroup analyses demonstrated that younger patients were more likely to derive benefit from combined modality treatment than older patients. Thus, radiotherapy alone is still the standard of care in the elderly. The value of radiotherapy has been confirmed in a small randomized trial comparing best supportive care versus radiotherapy alone: median survival was 29 weeks with radiotherapy compared with 16.9 weeks with supportive care only (Keime-Guibert et al. 2007). Based on the overall shorter survival in elderly patients, hypofractionated radiotherapy has been explored and shown to be equieffective in patients aged 65-70 years and more (Roa et al. 2004). Two randomized trials presented in abstract form at the Annual Meeting of the American Society of Clinical Oncology in June 2010 failed to show superiority of primary temozolomide chemotherapy alone over radiotherapy alone in elderly patients (Malmstrom et al. 2010, Wick et al. 2010a). In fact, the German NOA-08 trial even showed that primary temozolomide alone is not non-inferior to primary radiotherapy alone (Wick et al. 2010a). A concomitant treatment strategy is currently evaluated in a NCIC-EORTC randomized trial. Further, the Nordic trial corroborated the equieffectiveness of an accelerated radiotherapy protocol of 40 Gy administered in 15 fractions versus the standard fractionation of 30 x 2 Gy. Altogether, these clinical data justify the exploration of new, temozolomide-free first-line treatment strategies in glioblastoma.

Glioblastomas express high levels of vascular endothelial growth factor (VEGF) and are highly vascularized tumors. The VEGF antibody, bevacizumab, has recently gained approval in patients with recurrent glioblastoma in the USA and in Switzerland in 2009, but not in the EU. Its role in the first-line treatment of glioblastoma is currently being evaluated in randomized trials. There is limited data on the safety and efficacy of bevacizumab in elderly patients with glioblastoma, although the safety profile of bevacizumab in elderly patients with other types of cancer, e.g., lung cancer is favorable. There are ample rationales for combining bevacizumab with radiotherapy, including the induction of VEGF by radiotherapy and the concept of vascular normalization resulting in increased oxygenation and thus sensitivity to radiotherapy. Thus, bevacizumab is not only expected to inhibit angiogenesis, but may also exhibit additive or synergistic interactions with radiotherapy and further impair tumor growth. Altogether, this study seeks to explore, using a dedicated neuroimaging protocol, the possibility that bevacizumab enhances the effects of radiotherapy via the process of vascular normalization.

The purpose of this study is to explore the efficacy of bevacizumab combined with radiotherapy compared with radiotherapy alone in the treatment of newly diagnosed glioblastoma in the elderly. ;


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT01443676
Study type Interventional
Source University of Zurich
Contact
Status Completed
Phase Phase 2
Start date October 2011
Completion date August 2016

See also
  Status Clinical Trial Phase
Recruiting NCT05664243 - A Phase 1b / 2 Drug Resistant Immunotherapy With Activated, Gene Modified Allogeneic or Autologous γδ T Cells (DeltEx) in Combination With Maintenance Temozolomide in Subjects With Recurrent or Newly Diagnosed Glioblastoma Phase 1/Phase 2
Completed NCT02768389 - Feasibility Trial of the Modified Atkins Diet and Bevacizumab for Recurrent Glioblastoma Early Phase 1
Recruiting NCT05635734 - Azeliragon and Chemoradiotherapy in Newly Diagnosed Glioblastoma Phase 1/Phase 2
Completed NCT03679754 - Evaluation of Ad-RTS-hIL-12 + Veledimex in Subjects With Recurrent or Progressive Glioblastoma, a Substudy to ATI001-102 Phase 1
Completed NCT01250470 - Vaccine Therapy and Sargramostim in Treating Patients With Malignant Glioma Phase 1
Terminated NCT03927222 - Immunotherapy Targeted Against Cytomegalovirus in Patients With Newly-Diagnosed WHO Grade IV Unmethylated Glioma Phase 2
Recruiting NCT03897491 - PD L 506 for Stereotactic Interstitial Photodynamic Therapy of Newly Diagnosed Supratentorial IDH Wild-type Glioblastoma Phase 2
Active, not recruiting NCT03587038 - OKN-007 in Combination With Adjuvant Temozolomide Chemoradiotherapy for Newly Diagnosed Glioblastoma Phase 1
Completed NCT01922076 - Adavosertib and Local Radiation Therapy in Treating Children With Newly Diagnosed Diffuse Intrinsic Pontine Gliomas Phase 1
Recruiting NCT04391062 - Dose Finding for Intraoperative Photodynamic Therapy of Glioblastoma Phase 2
Active, not recruiting NCT03661723 - Pembrolizumab and Reirradiation in Bevacizumab Naïve and Bevacizumab Resistant Recurrent Glioblastoma Phase 2
Active, not recruiting NCT02655601 - Trial of Newly Diagnosed High Grade Glioma Treated With Concurrent Radiation Therapy, Temozolomide and BMX-001 Phase 2
Completed NCT02206230 - Trial of Hypofractionated Radiation Therapy for Glioblastoma Phase 2
Completed NCT03493932 - Cytokine Microdialysis for Real-Time Immune Monitoring in Glioblastoma Patients Undergoing Checkpoint Blockade Phase 1
Terminated NCT02709889 - Rovalpituzumab Tesirine in Delta-Like Protein 3-Expressing Advanced Solid Tumors Phase 1/Phase 2
Recruiting NCT06058988 - Trastuzumab Deruxtecan (T-DXd) for People With Brain Cancer Phase 2
Completed NCT03018288 - Radiation Therapy Plus Temozolomide and Pembrolizumab With and Without HSPPC-96 in Newly Diagnosed Glioblastoma (GBM) Phase 2
Withdrawn NCT03980249 - Anti-Cancer Effects of Carvedilol With Standard Treatment in Glioblastoma and Response of Peripheral Glioma Circulating Tumor Cells Early Phase 1
Not yet recruiting NCT04552977 - A Trail of Fluzoparil in Combination With Temozolomide in Patients With Recurrent Glioblastoma Phase 2
Withdrawn NCT02876003 - Efficacy and Safety of G-202 in PSMA-Positive Glioblastoma Phase 2