Skull Base Chordoma Clinical Trial
Official title:
Improvement of Local Control in Skull Base, Spine and Sacral Chordomas Treated by Surgery and Protontherapy Targeting Hypoxic Cells Revealed by [18F]FAZA) PET/CT Tracers
Improved local control of chordoma initially treated with surgery or not, thanks to adjuvant radiotherapy oriented by conventional imaging Computed Tomography /Magnetic Resonance Imaging (CT / MRI) and guided by the [18Fluor] ([18F]) Fluoroazomycin Arabinofuranoside (FAZA) Positron Emission Tomography / Computed Tomography (PET / CT) to target the radioresistant hypoxic cells.
Due to the close contacts of the lesion with the neurovascular structures, in the case of skull base chordoma and mobile spine, surgery is often incomplete. On the contrary, surgery of the sacral region (for which the block excision is often possible) brings a better therapeutic outcome. Radiotherapy with high-dose supplement improves the outcomes for all these lesions. Intratumoral hypoxia is a primary factor of radioresistance, it's known since long by radiation oncologists. [18F]FAZA gives an image of the hypoxic volume target. Investigators propose to increase the radioactive dose in the hypoxic volume target but in order to succeed, radiation oncologists have to precisely identify this hypoxic volume. Radiation oncologists would increase of 10% the radioactive dose that will allow us to improve local control at 3 years of 15% without any additional side effect. ;
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Recruiting |
NCT05888064 -
Multi-parametric Imaging in Personalized Radiotherapy
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