Long Term Effect of Oxaliplatin Treatment in Cancer Survivors

This project will evaluate the neurotoxic effects of oxaliplatin. Oxaliplatin is considered the most neurotoxic chemotherapy, and at the origin of peripheral neuropathies. These neuropathies remain a problem in oncology because currently no prevention strategy has proved effective and only duloxetine seems to have a therapeutic benefit in improving symptoms. In the case of oxaliplatin, neuropathy forced oncologists to reduce the dose or to stop the chemotherapy, potentially degrading the oncological prognosis. Objective of this study will be to assess, on a large number of patients (n\> 500) who completed adjuvant chemotherapy (FOLFOX), the intensity of neuropathic disorders out of 5 years after the end of chemotherapy. Furthermore, this study should enable an assessment of the relationship between the intensity of neuropathy and comorbidities, such as anxiety and depression and health related quality of life of patients.