A Study to Investigate the Effects of a New Treatment in Patients With Chronic Pain

Exclusion Criteria

• •Pregnant, breastfeeding, or willing to be pregnant within 2 months
• •With a current or recent history, as determined by the Investigator, of severe, progressive, and/or uncontrolled renal, hepatic, hematological, gastrointestinal, endocrine, pulmonary, cardiac, neurological, or cerebral disease which would interfere with the patient's participation in the study
• •Uncontrolled epilepsy
• •Any current primary psychiatric condition, including major depression or major personality disorders (such as Axe II of Diagnostic and Statistical Manual of Mental Disorders (DSM-IV); personality disorders and mental retardation)
• •Alcohol dependence or regular use of known drugs of abuse (e.g., amphetamines, barbiturates, benzodiazepines, cannabinoids, cocaine, methadone, opiates, and phencyclidine)
• •Acute disease state within 7 days before Visit 2
• •Any other relevant medical disorder likely to interfere with the trial or represent a risk for the patient
• •Any close relationship with the Investigators or the Sponsor (i.e. belonging to immediate family or subordination link)
• •Patient under legal protection, according to the national law
• •Patient currently enrolled in a clinical trial involving use of an investigational drug or device, or concurrently enrolled in any other type of medical research judged not to be scientifically or medically compatible with this study, or in an exclusion period according to national law
• •Neuropathic pain due to trigeminal neuralgia, central pain, complex regional pain syndrome and phantom limb pain
• •Plan to have a session of physiotherapy or comportemental therapy such as gestion of pain, hypnosis, sophrology, meditation program during the study
• •Have initiated or have planned an electrical stimulation (or neurostimulation) therapy within 2 weeks prior to Visit 1 or during the study period up to Visit 5
• •Patient changed his/her " regular therapy " in the last 4 months