Project Details
Abstract
Bevacizumab is a recombinant humanized monoclonal IgG1 antibody that selectively
neutralizes the biologic activity of human vascular endothelial growth factor (VEGF), resulting in
reduction of tumor vascularization and growth.Patients with recurrent glioblastoma may be
treated with bevacizumab (Avastin®) after failure of surgery, radiotherapy and chemotherapy.
Bevacizumab is approved by U.S. FDA in 2009 and covered by Taiwan National Health Insurance
since 2012.
Bevacizumab is an expansive drug. However, only 20‐25% of patients respond to the
treatment. It is therefore important to identify the subpopulation of patients that potentially
benefits most from bevacizumab.MR markers derived from physiologic MRI such as perfusion,
diffusion and spectroscopy were reported to be promising in outcome prediction.However, it is
difficult to draw any firm conclusion from previous studies due to their differences in study
design, sample size and investigated MR markers.
We retrospectively analyzed the patients with recurrent glioblastoma treated with
bevacizumab since 2012. We found that the pretreatment physiologic MR markers of
responsive patients were different from those who were unresponsive to bevacizumab
treatment. We also observed that early changes in physiologic MR markers following
bevacizumab administration were different between the two groups.
Based our research and clinical experiences on physiologic MRI, we believe that these
advanced MR techniques may be useful in predicting outcome of patients with recurrent
glioblastoma treated with bevacizumab.In this prospective study, we will include 60 patients
and collect their clinical characteristics and MR markers before and during bevacizumab
treatment. We want to investigate if physiologic MR markers can predict treatment outcomes
before and 1.5 month after bevacizumab administration. We also want to study if physiologic
MRI performed during follow up can detect impending failure of bevacizumab inpatients who
are initially responsive to bevacizumab treatment. We will try to construct outcome predictive
models using patients’ clinical characteristics and physiologic MR markers.
Project IDs
Project ID:PC10401-1139
External Project ID:MOST103-2314-B182A-112-MY2
External Project ID:MOST103-2314-B182A-112-MY2
Status | Finished |
---|---|
Effective start/end date | 01/08/15 → 31/07/16 |
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