Exploration by NMR Spectroscopy of the Choline Concentrations in the Insular Cortex of Patients Suffering of Neuropathic Pain Induced by Oxaliplatin (INSULOX)
Neuropathy, Painful
About this trial
This is an interventional diagnostic trial for Neuropathy focused on measuring Neuropathy, Oxaliplatin, Insula, choline
Eligibility Criteria
Inclusion Criteria:
Oxaliplatin treated patient and suffering from neuropathic pain
- Chemotherapy (oxaliplatin based) ended
- Pain VAS ≥ 3/10, 1 month after the chemotherapy end
- DN4 interview score ≥ 3/7, 1 month after the chemotherapy end
Oxaliplatin treated patient without neuropathic pain
- Chemotherapy (oxaliplatin based) ended
- Pain VAS < 3/10, 1 month after the chemotherapy end
- DN4 interview score < 3/7, 1 month after the chemotherapy end
All patients
- right-handed
- No contrindication to MRI
- Free, written and informed consent
- Affiliated to the french health system
- Effective contraception for male or female of childbearing age
- Performance score (WHO) ≤ 2
Exclusion Criteria:
- Age < 18
- Left-handed
- BMI > 30 kg/m²
- Amputees of all or part of an upper limb
- Diabetic patient
- Painful events scheduled after enrollment (eg. surgical resection)
- Neurological diseases (eg Parkinson's disease, stroke, migraine, fibromyalgia ...)
- Chronic pain history before chemotherapy
- Analgesic treatment being other than paracetamol and weak opioids
- Alcohol consumption >3 units/day (30 g/day) for men and >2 units/day (20 g/day) for women
- Any unbalanced progressive disease (hepatic failure, renal impairment (creatinine clearance <30 mL/min), respiratory failure, congestive heart failure, myocardial infarction within the past 6 months ...)
- All active cancer
- Patient with a pacemaker, a cochlear implant, metal implants, or any other magnetic element
- Claustrophobia
- Pregnant or lactation
- Legal incapacity (person deprived of liberty or guardianship)
- Psychological, social, family or geographical reasons incompatible with the study
- Already included in another clinical trial
Sites / Locations
- CHU de Clermont-Ferrand
Arms of the Study
Arm 1
Arm 2
Experimental
Other
Oxaliplatin and neuropathic pain
Oxaliplatin without neuropathic pain
The objective of this study is to demonstrate a significant increase in choline concentration in the insular cortex of patients with an oxaliplatin induced neuropathy. Other objectives will assess the correlation between metabolite concentrations in the insular cortex and frequency / intensity of pain and neuropathic symptoms, cold and heat-induced pain and comorbidities (anxiety, pain, quality of life).
The objective of this study is to demonstrate a significant increase in choline concentration in the insular cortex of patients with an oxaliplatin induced neuropathy. Other objectives will assess the correlation between metabolite concentrations in the insular cortex and frequency / intensity of pain and neuropathic symptoms, cold and heat-induced pain and comorbidities (anxiety, pain, quality of life).