Status:

UNKNOWN

Evaluation of the Efficacy and Tolerance of Low Doses of Ethosuximide in the Treatment of Peripheral Neuropathic Pain

Lead Sponsor:

University Hospital, Clermont-Ferrand

Conditions:

Peripheral Neuropathic Pain

Eligibility:

All Genders

18+ years

Phase:

PHASE2

Brief Summary

Evaluation of the efficacy and tolerance of low doses of ethosuximide in the treatment of peripheral neuropathic pain

Detailed Description

Multicenter, randomized, double-blind, placebo-controlled therapeutic trial evaluating the efficacy and safety of low doses of ethosuximide in neuropathic pain patients.

Eligibility Criteria

Inclusion

  • Male or female (under effective contraception: pill, implant, IUD, sterilization) aged 18 years or older, suffering from peripheral neuropathic pain (DN4 ≥ 4) for more than 3 months, of intensity ≥ 4 on a numerical scale from 0 to 10, and whose analgesic treatment has been stable for more than a month,
  • Patients affiliated to the French Social Security system,
  • Patients whose free and informed consent has been obtained.

Exclusion

  • Pregnancy (βHCG+ blood) or breastfeeding,
  • Neuropathic pain due to spinal cord or brain injury, phantom limb pain or algohallucinosis,
  • Fibromyalgia or algodystrophy,
  • Chronic pain syndrome that the patient cannot distinguish and/or is more intense than peripheral neuropathic pain,
  • Significant abnormalities in liver (transaminases \> 3N, cholestasis) and renal (MDRD \< 60 mL/min) tests,
  • Ongoing comorbidities: cancer, neurodegenerative pathology
  • Severe depressive disorder in progress (as determined by the clinician), history of suicide attempts or hospitalization for depression,
  • Diabetic patients (contraindicated due to the high sugar concentration of ethosuximide, 3g / 5 ml),
  • Patients who have previously received ethosuximide (epilepsy or clinical trial),
  • Surgery planned throughout the entire trial,
  • Medical and surgical history incompatible with the study,
  • Dependence on alcohol and/or drugs (for compliance purposes),
  • Known allergy to succinimides (ethosuximide, methsuximide, phensuximide),
  • Psychotic disorders,
  • Epileptic patients,
  • Patients benefiting from a legal protection measure (curatorship, guardianship, deprived of liberty or subject to judicial safeguard).

Key Trial Info

Start Date :

November 1 2020

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

December 31 2023

Estimated Enrollment :

64 Patients enrolled

Trial Details

Trial ID

NCT04431778

Start Date

November 1 2020

End Date

December 31 2023

Last Update

January 6 2023

Active Locations (11)

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Page 1 of 3 (11 locations)

1

University Hospital Lyon sud - Pierre Bénite

Lyon, AURA, France, 69310

2

Uniervity hospital, Amiens

Amiens, France, 80000

3

Hospital of Annecy Genevois

Annecy, France

4

University hospital, clermont ferrand

Clermont-Ferrand, France, 63000