Spinal Magnetic Stimulation in Neuropathic Pain

Neuropathic Pain Clinical Trial

Official title:

A Randomized Placebo-controlled Trial on the Use of Repetitive Spinal Magnetic Stimulation as a Therapeutic Option in Patients With Intractable Neuropathic Pain of the Lower Limbs

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00443469
• Other study ID #: #64/2006
• Status: Completed
• Phase: Phase 3
• First received: March 4, 2007
• Last updated: March 30, 2010
• Start date: August 2006
• Est. completion date: February 2010

Study information

• Verified date: March 2010
• Source: Singapore General Hospital
• Contact: n/a
• Is FDA regulated: No
• Health authority: Singapore: Health Sciences Authority
• Study type: Interventional

Clinical Trial Summary

It involves delivering a train of magnetic pulses, 5 at each time, to the brain. In the present study, we are using the same method to treat severe pain due to nerve conditions. You will be given up to 1000 pulses in total over the spine in the lower back (Spinal Magnetic Stimulation or SMS). Each train will be given in 10-second intervals. You will have SMS on a single day. You will be given SMS pulses at 1 or 10 per second. No stimulation will be given over the head.

You will be assessed before and after the study for up to 1 week. Your usual medical treatment will be continued

Description:

You must be aware of that this is a placebo-controlled trial. This means that you may either receive real SMS or sham SMS. The latter involves a harmless process of ineffective stimulation, designed for comparison with real SMS. Whether you receive either form of treatment will be assigned randomly, and there will be a 50% chance of being assigned to either.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 20
• Est. completion date: February 2010
• Est. primary completion date: February 2010
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 20 Years to 80 Years

Eligibility

Inclusion Criteria:

• All with neuropathic lower limb pain

Exclusion Criteria:

• Contraindications to magnetic stimulation

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Neuralgia
• Neuropathic Pain

Intervention

Device:
• magnetic stimulation
SMS was delivered with a repetitive magnetic stimulator connected to a figure of eight coil capable of delivering a maximum output of 2 Tesla per pulse. The coil measured 90 mm in each wing and was centered over the surface landmark corresponding to the cauda equina region. SMS was performed with the patient lying comfortably in the prone position and a soft pillow supported the lower abdomen. The coil was placed flat over the back with the handle pointing cranially. Each patient on active treatment received 200 trains of 5 pulses delivered at 10 Hz, at an interval of 5 s between each train. As this was a pilot study, each only received 1000 pulses in a single session.
• Magnetic Stimulation with tilted coil
The placebo arm consisted of 'sham' SMS delivered with the coil angled vertically and one of the wing edges in contact with the stimulation point. As this coil type allows maximum magnetic flux at the center of the intersection, we believe minimum or no stimulation was effected at the edge of the coil in contact with the patient. Stimulation parameters and duration were unchanged in this arm.

Locations

Country	Name	City	State
Singapore	Singapore General Hospital	Singapore

Sponsors (1)

Lead Sponsor	Collaborator
Singapore General Hospital

Country where clinical trial is conducted

Singapore, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Subjective pain score measurements	NAS score	4 days	No