"MecPain", a New Questionnaire to Assess Chronic Pain Mechanisms.

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

240 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-02-02

Study Completion Date

2023-12-01

Brief Summary

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Validation of a new clinical questionnaire, called 'MecPain', including 12 questions, aimed at better defining the pathophysiological mechanisms of a chronic pain condition. This questionnaire includes 8 components/sub-components, reflecting various aspects of the 3 main mechanisms of chronic pain: nociceptive, neuropathic, nociplastic. A series of 240 patients with well-characterized chronic pain syndrome (for more than 6 months) of the nociceptive, neuropathic or nociplastic type will be recruited (80 patients per type of pain). The patients will be interviewed by a pain specialist to complete the 12 questions of the questionnaire during a routine visit in a Pain Center (CHU Grenobles Alpes, Grenoble, France or CHU Henri Mondor, Creteil, France). The scoring obtained with the 'MecPain' questionnaire will be compared to the presence of neuropathic pain assessed by two previously validated questionnaires, the 'DN4' and the 'PainDETECT' questionnaires. The expected outcome is a validation of the 'MecPain' questionnaire to provide a better understanding of the pathophysiological mechanisms relating to the presence of a chronic pain syndrome in a given patient.

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Detailed Description

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The main objective of this study is to specify the physiopathological mechanisms of a chronic pain syndrome according to 5 main components (+ 3 "sensory" sub-components) reflecting various aspects of the 3 main mechanisms of chronic pain: nociceptive, neuropathic, nociplastic.

A score will be assigned based on the answers to each of the 12 questions of the 'MecPain' questionnaire for each of the 8 components/sub-components mentioned above.

240 chronic pain patients will be included (in two centers), according to 3 categories: 80 patients with nociceptive pain (mechanical or inflammatory joint or spinal pain), 80 patients with neuropathic pain (painful peripheral neuropathy, neuralgia or radiculalgia, pain related with spinal cord or brain injury), and 80 patients with nociplastic pain (fibromyalgia, glossodynia, temporomandibular joint pain, irritable bowel syndrome, painful bladder syndrome).

Conditions

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Chronic Pain

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* Presence of a chronic pain syndrome (pain for more than 6 months);
* well-characterized pain syndrome of the nociceptive, neuropathic or nociplastic type