Low Back Pain Clinical Trial
Official title:
Static Magnets In The Treatment of Sciatica
Despite much popularity among the public, magnetic devices used for the treatment of various
musculoskeletal and neuropathic pain syndromes have been the subject of few randomized
controlled trials.
We propose to study the effects of permanent 200 gauss magnets on lumbar radicular pain.
This study will include 52 men and women of all ethnic backgrounds between the ages of 28
and 75 who have had signs and symptoms of sciatica for 3 months or more.
This is a double-blind, randomized, placebo-control, two phase study. In the first phase,
after one week baseline, subjects will be randomized to 4 different treatments in a
cross-over design. These 4 treatments which will last two weeks each are: 1 magnetic device
positioned in 2 different ways along the spinal axis (up-down along the lumbo-sacral spine
and left-right across the lumbo-sacral spine), a sham device of similar configuration and a
no treatment control. The length of phase I will be 8 weeks. At the end of this phase, codes
will be broken to select the magnetic device associated with the greatest amount of pain
score reduction. During the second phase which will also be double-blinded, subjects will be
randomized to wear the selected magnetic device and sham in a cross-over design. Each of the
2 periods will be 5 weeks in duration. The primary outcome measures will be the daily pain
score in the leg. Daily pain level in the low back and the back and leg combined in addition
to the patients' quality of life and activities of daily living will be secondary outcome
measures as assessed by the SF 36, Oswestry, and Beck depression inventory.
Status | Completed |
Enrollment | 75 |
Est. completion date | June 2006 |
Est. primary completion date | |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 30 Years to 80 Years |
Eligibility |
- INCLUSION CRITERIA: 1. Low back pain of 3 months duration or longer present at least 5 out of 7 days a week 2. Age between 28-80 at the start of the study 3. Men and women of all ethnicities 4. Signs and symptoms of lumbar radiculopathy. In this study chronic lumbar radicular signs and symptoms are defined as pain located in the lower lumbar spine corresponding to L1 and below for at least 3 months with radicular characteristics, i.e. pain described as sharp, burning, with numbness and/or tingling. 5. Ability to understand the study measures and mentally capable to give consent to participate in the study (based on an 8th grade education level) 6. Willingness to refrain from making changes in non-study medications taken for sciatica 7. Patients with failed back syndrome. 8. Pain level of at least 4/10 on average on a scale of 0 to 10 for the past month 9. Pain not attributable to malignancy, inflammatory arthritis such as rheumatoid arthritis, or infection by previous examinations or by laboratory testing 10. Patients' agreement to keeping a log of their pain level and documentation of compliance with wearing of back device. 11. Patients' agreement not to make changes in pain medication type of dosing during the study. 12. Women of reproductive age agreeing to undergo a pregnancy test at baseline. EXCLUSION CRITERIA: 1. Patients with pacemakers 2. Patients with mechanical heart pumps 3. Pregnancy or breast feeding 4. Presence of pain of greater intensity in any other location than the low back or the leg 5. History of fibromyalgia as described by Wolfe F et al. (1990) (a minimum of 11 out of 18 points of tenderness must be present to satisfy criteria for fibromyalgia) 6. History of spinal unstability (as defined by X-ray, CT scan or MRI of grade II spondylolisthesis or greater) 7. Cognitive impairment such that the individual is unable to give informed consent, complete study data collection tools or required study visits 8. Unwillingness to use adequate contraception excluding oral contraceptive medications (such as barrier methods with spermicide simultaneously) for women 9. Presence of other medical condition presenting with numbness and pain in lower extremities, such as diabetic polyneuropathy and peripheral vascular disease 10. History of inflammation arthritis (rheumatoid arthritis, SLE) 11. Presence of active cancer 12. History of spinal infection 13. Patients s/p spinal fusion with spinal rods over the lower lumbar spine |
Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | National Institute of Dental And Craniofacial Research (NIDCR) | Bethesda | Maryland |
Lead Sponsor | Collaborator |
---|---|
National Institute of Dental and Craniofacial Research (NIDCR) |
United States,
Blank M, Soo L. Optimal frequencies for magnetic acceleration of cytochrome oxidase and Na,K-ATPase reactions. Bioelectrochemistry. 2001 Mar;53(2):171-4. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Daily overall pain level, pain in the low back and pain in the lower extremities will be rated on a scale of 0 to 10. | |||
Secondary | Baseline and end of period 1 and 2 of Phase II: Pain symptoms, Pain level with walking, Use of pain meds, Use of other non-medication treatments, questionnaire: SF 36, Oswestry and Beck Depression, Days of disability. End of Study: Patient preference. |
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