Motivational Behavioral and Functional MRI Impairment in Patients With Chronic Neuropathic Pain (MOTION)

Fondation Ophtalmologique Adolphe de Rothschild

Status: Enrolling

Conditions: Chronic Pain

Treatments: Other: reward learning task

Study type: Observational

Funder types: NETWORK

Identifiers

NCT05701852

HBD_2022_6

Details and patient eligibility

About

The main hypothesis of this study is that the alteration of the reward circuitry underlying the motivational deficit in chronic pain patients compared to healthy subjects results in a decrease in the capacity for reward learning. The fMRI studies have shown that this type of learning depends on the dopaminergic system innervating key regions of the reward system.

Enrollment: 50 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• For cases: patients managed in the neurosurgery department or at CETD for chronic neuropathic pain, of central or peripheral origin.
• For controls: matched to a case on age (±5 years) and sex

Exclusion criteria

• Neurodegenerative or inflammatory neurological pathology
• Clinical depressive syndrome
• High doses of opioid treatment (greater than 100 mg/day of morphine equivalent)
• Impaired judgment or inability to receive information that does not allow the performance of behavioral tasks
• Absolute contraindication to MRI (e.g. pacemaker, implantable pacemaker, metallic intra-orbital foreign body)

Trial design

50 participants in 2 patient groups

cases : patients with chronic pain

Treatment:

Other: reward learning task

controls

Treatment:

Other: reward learning task