* Patient information and collection of a signed informed consent form
* Clinical data collection
* Blood samples of 35 mL:
1. after registration, prior to the first fraction of radiotherapy
2. within 15 minutes after the administration of the 1st, the 2nd and the 3rd radiotherapy sessions
3. one week, 3 months, 6 months, 9 months and 12 months after the last radiotherapy session
* Storage of the blood samples at ambient temperature
* Transportation of the samples to the Institute of Biology of Lille (IBL) - CNRS UMR8161 for analysis
* Destruction of the samples at the end of the analysis
