NCT02393391

Brief Summary

Neuropathic pain results from damage to or dysfunction of the peripheral or central nervous system, rather than stimulation of pain receptors. Diagnosis is suggested by pain out of proportion to tissue injury, dysesthesia (eg, burning, tingling), and signs of nerve injury detected during neurologic examination. Although neuropathic pain responds to opioids, treatment is often with adjuvant drugs (eg, antidepressants, anticonvulsants, baclofen, topical drugs). Neuropathic pain (e.g. phantom limb pain, CRPS, postherpetic neuralgia, postsurgical pain syndromes, CLBP etc.) remains a challenging condition to treat because it is commonly refractory to classical pharmacological and to surgical treatment approaches. Chronic low back pain (CLBP) is a widespread and costly problem for which few interventions are effective. An increased focus on the study of the nervous system and its involvement in pain disorders has documented complex neuronal activity and structural changes at a peripheral, as well as at spinal cord and cortical levels indicating a neuropathic element in CLBP. Accumulated evidence suggests that neuropathic pain in general and CLBP specifically might be associated to brain cortical plastic changes. Thus an ideal rehabilitative approach should aim to reverse them. In line with this idea, the investigators suggest an innovative noninvasive intervention aimed at alleviating neuropathic pain. New rehabilitative approaches have been proposed to try and reverse this cortical reorganization. Results of several studies have shown that motor cortex stimulation with epidural electrodes or repetitive transcranial magnetic stimulation (rTMS) or transcranial direct stimulation (tDCS) are effective in reducing pain in patients with central pain refractory to treatment. Transcranial direct current stimulation (tDCS) is an easily applied and safe technique by which brain activity can be modulated noninvasively and can decrease pain in patients with refractory central pain. The investigators hypothesized that focal-tDCS treatment personally customized to each patients basal neuronal network properties would result in both acute and long term pain relief for neuropathic pain patients.

Trial Health

50
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P50-P75 for phase_2

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 8, 2015

Completed
11 days until next milestone

First Posted

Study publicly available on registry

March 19, 2015

Completed
1 month until next milestone

Study Start

First participant enrolled

May 1, 2015

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2015

Completed
Last Updated

March 19, 2015

Status Verified

March 1, 2015

Enrollment Period

Same day

First QC Date

March 8, 2015

Last Update Submit

March 18, 2015

Conditions

Outcome Measures

Primary Outcomes (1)

  • Evaluation of treatment efficacy (evaluated by pain level and sleep quality questionnaire)

    Efficacy of the treatment will be evaluated by pain level and sleep quality questionnaire

    one year

Study Arms (2)

NIBS tDCS/tACS stimulation

ACTIVE COMPARATOR

Each patient will undergo initial diagnosis with NIBS algorithm utilizing EEG measurements combined with TMS. Initial diagnosis will last 10 minutes in which EEG measurement will be recorded 5 minutes and then in combination with TMS for another 5 minutes with no more than 500 TMS stimuli applied to cortex at low frequency of up to 5Hz. EEG recording will be analyzed by NIBS algorithm which will propose a course of treatment with the following limitations: stimulation of 2mA (32, 33) current after 30 seconds ramp up of 0.1mA increments, 20 min for each session, twice a week

Device: Neuroelectrics STARSTIM

inactive electrodes

PLACEBO COMPARATOR

diagnosis and monitoring will be performed as in active treatment, but during treatment anodal/cathodal/alternate stimulation will begin and automatically stop after 30 seconds leaving subject with an inactive electrodes in place for the remainder of treatment duration

Device: Neuroelectrics STARSTIM

Interventions

NIBS tDCS/tACS stimulationinactive electrodes

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age 18 to 70
  • CLBP as defined by the European guidelines

You may not qualify if:

  • Acute low back pain (duration of less than 6 months
  • Neurological illness causing structural brain damage (e.g. Stroke, TIA)
  • Psychiatric disease other than mood disorders
  • Current chronic use of medications with pro-epileptic properties
  • Known alcohol dependency
  • Use of alcohol within the previous 24 hours
  • History of loss of consciousness
  • Epilepsy or epilepsy in a first degree relative
  • Medical implants
  • Pregnancy
  • Illicit drug use or within the previous month

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Central Study Contacts

Silviu Brill, Dr.

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 8, 2015

First Posted

March 19, 2015

Study Start

May 1, 2015

Primary Completion

May 1, 2015

Last Updated

March 19, 2015

Record last verified: 2015-03