Clinical trial Recruiting at 1 site Interventional Ages 18 to 80

Comparing different rTMS methods for chronic neuropathic pain relief

Official title: Randomized Double-blind Study of RTMS Analgesic Effect in Chronic Neuropathic Pain. Comparison Between Three Groups: Motor Cortex Stimulation by the Classic Coil B65, Deeper Stimulation by the Coil B70 and Placebo Stimulation. Analysis of Long-term RTMS-induced Brain Changes Using FMRI.

Run by University Hospital, Grenoble · NCT04936646 · Data updated 2026-11-12

This study is testing three different types of brain stimulation to see which one helps people with chronic nerve pain feel better.

Quick facts

Study typeInterventional
Ages18 Years to 80 Years
SexAll
Enrollment45 (estimated)
SponsorUniversity Hospital, Grenoble
Academic / other
Locations1 site (Grenoble, Isère)
StatusRecruiting
StartedJuly 16, 2021
Main results expectedOctober 1, 2025
Study endsDecember 1, 2025
Registry record updatedDecember 6, 2024
Trial IDNCT04936646 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals suffering from unilateral refractory neuropathic pain for over a year and whose analgesic treatment has been stable for at least one month.

Probably not a fit

Patients with a history of drug addiction, epilepsy, cranial trauma, or those who have previously undergone rTMS treatment may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to evaluate the analgesic effectiveness of three different modes of repetitive Transcranial Magnetic Stimulation (rTMS) in patients suffering from chronic neuropathic pain. Participants will be randomly assigned to receive either classical rTMS, deeper rTMS, or a sham treatment after providing informed consent. They will record their pain intensity daily for one week before treatment and continue to do so during the seven weeks of neurostimulation sessions, followed by a two-week follow-up period. The study will assess the effectiveness of these interventions in managing refractory neuropathic pain.

Why it matters

Potential benefit: If successful, this study could provide a new non-invasive treatment option for patients with chronic neuropathic pain who do not respond to conventional therapies.

How similar studies have gone: Other studies have shown promising results with rTMS for pain management, indicating that this approach has potential based on previous findings.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient's written consent
* Affiliated with social security system
* Male or female, suffering for more than a year from unilateral refractory neuropathic pain: hemi-body, upper limb, lower limb and facial chronic pain.
* Patient whose analgesic treatment, is stable for at least 1 month.
* Patient not responding to conventional treatments
* Prescreening EVN \>3

Exclusion Criteria:

* History of drug addiction, epilepsy, cranial trauma
* History of psychiatric disorder
* Patients previously treated with rTMS
* Patient with intracranial ferromagnetic material or implanted stimulator
* New treatment for less than one month
* Pregnant or Breastfeeding woman
* Patient who does not understand the study protocol
* Persons who are protected under the act.

Where it's running

  • Centre de la douleur, CHU Grenoble Alpes
    Grenoble, Isère, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.