CClinicalTrials.gg
CompletedNCT02030626Updated Dec 9, 2015

Comparison of the Efficacy of rTMS and tDCS of the Motor Cortex in Patients With Chronic Neuropathic Pain

A Phase 4 interventional study of active or placebo rTMS or active or placebo tDCS in Lumbar Radiculopathy, sponsored by Hospital Ambroise Paré Paris. Completed at 2 sites in France. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-12-09.

Sponsored by Hospital Ambroise Paré Paris · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
35
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

The present study aims to compare directly the efficacy of two noninvasive neurostimulation techniques : repetitive transcranial magnetic stimulation and transcranial direct electrical current of the motor cortex in patients with chronic lumbar radiculopathy on pain intensity.

Read the detailed description

The present study ims to compare directly the efficacy of two noninvasive neurostimulation techniques : repetitive transcranial magnetic stimulation (rTMS) and transcranial direct electrical current (tDCS) of the motor cortex in patients with chronic lumbar radiculopathy on average pain intensity. This will be a sham controlled crossover design : patients will be randomized to receive either active rTMS or tDCS during 3 consecutive days followed by the alternative treatment within 3 weeks apart, or sham rTMS or tDCS during 3 consecutive dats followed by the alternative treatment within 3 weeks apart. The investigator will be blind to the treatment. Assessments will be performed before each treatment, then 1 hour after the end of the third day session, then 2 days and 1 week after the stimulation. Assessments will include pain questionnaires, quality of life, anxiety and depression, catastrophizing and evaluation of treatment effect on experimental pain using Quantitative sensory testing.

02

Conditions studied

  • Lumbar Radiculopathy

Keywords

  • Neuropathic pain
  • lumbar radiculopathy
  • rTMS
  • tDCS
  • placebo controlled study
03

In context

Neuralgia

1,287 studies on the registry are indexed under Neuralgia; 256 are open to participants now.

This study's enrollment of 35 is below the median of 52 across 973 interventional studies indexed under Neuralgia.

Browse Neuralgia studies →

Lead sponsor

Hospital Ambroise Paré Paris is the lead sponsor of 23 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

Patients aged more than 18 years and less than 60 years, males of females Lumbosciatica or lumbocruralgia with predominant neuropathic components with DN4 score ≥ 4/10 Chronic pain with an intensity of at least 4/10 Stable analgesic treatment for at least 15 days before inclusion Able to speak and understand French Social security

Exclusion criteria

Exclusion Criteria:

Work accident or litigation Contraindication to rTMS (sismotherapy in the preceding month, epilepsia, past head trauma, intracranial hypertension, metallic clip, pace maker, pregnancy or lactation Major depressive episode Intermittent pain Consent refusal Impossible to follow up during the duration of the study Pain more severe than neuropathic pain

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
35 participants (actual)

Study arms

  • Experimental
    active rTMS or active tDCS or placebo

    Active rTMS (10 Hz) of the motor cortex followed by active tDCS (2 mA) of the motor cortex or conversely

    Device: active or placebo rTMS or active or placebo tDCS

  • Placebo comparator
    Sham rTMS followed by tDCS (or conversely)

    Placebo rTMD followed by placebo tDCS or conversely

    Device: active or placebo rTMS or active or placebo tDCS

Interventions

  • Deviceactive or placebo rTMS or active or placebo tDCS
06

What researchers measure

Primary outcomes

  1. Comparison of rTMS and tDCS on average pain intensity

    Average pain intensity numerical scales (0-10)

    Time frame: 7 days after 3 days of stimulation

Secondary outcomes

  1. Comparison of rTMS and sham stimulation on average pain intensity

    numerical scale for pain intensity (0-10)

    Time frame: 7 days after 3 stimulation days

  2. comparison of tDCS and sham stimulation on average pain intensity

    numerical scales for pain intensity (0-10)

    Time frame: at 7 days after 3 days of stimulation

  3. comparison of rTMS and tDCS on current pain

    pain intensity (right now)1 hour after each stimulation

    Time frame: 1 hour after each stimulation session

  4. comparison of rTMS and tDCS on pain intensity

    numerical score (0-10) for pain over the last 24 hours

    Time frame: 2 days after 3 stimulation days

  5. comparison of rTMS versus tDCS and versus sham on BPI interference

    BPI interference scale (0-70)

    Time frame: 7 days after the end of 3 stimulation days

  6. comparison of rTMS versus tDCS and sham on pain catastrophizing

    Pain catastrophizing scale (PCS)

    Time frame: 7 days after the last day of stimulation (3 days)

  7. comparison of rTMS versus tDCS and sham on anxiety and depression

    Hospital anxiety and depression scale

    Time frame: 7 days after the end of stimulation sessions

  8. comparison of rTMS versus tDCS and sham on neuropathic symptoms

    Neuropathic pain symptom inventory

    Time frame: 7 days after the end of stimulations

  9. comparison of rTMS versus tDCS and sham on thermal testing

    thermal testing using thermotest on the upper limbs

    Time frame: 2 days and 7 days after stimulation days

  10. comparison of safety between rTMS and tDCS and between neurostimulation and sham

    any emerging side effects

    Time frame: immediately after each stimulation, then at 2 days and 7 days

07

Study locations

2 sites
  • Hôpital Ambroise Paré
    Boulogne Billancourt, 92100, France
  • Hôpital Henri Mondor, APHP
    Créteil, 94000, France
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 9, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02030626
Lead sponsor
Hospital Ambroise Paré Paris
Responsible party
Nadine ATTAL (MD PhD, Hospital Ambroise Paré Paris) — Principal investigator
First posted
Jan 8, 2014
Start date
Jan 2013
Primary completion
Jan 2015
Completion
Jan 2015
Last update
Dec 9, 2015

Study contacts

Didier BOUHASSIRA, MD PhD
study director · INSERM U 987
Jean Pascal LEFAUCHEUR, MD PhD
principal investigator · APHP

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2015. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion