Carpal Tunnel Syndrome Clinical Trial
— CTS/SMFOfficial title:
Carpal Tunnel Syndrome and Static Magnetic Field Therapy
Verified date | November 2009 |
Source | National College of Natural Medicine |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Federal Government |
Study type | Interventional |
The purpose of this Phase II study is to assess the feasibility of conducting a large scale
trial which will evaluate the effectiveness of static magnetic field therapy as a treatment
for Carpal Tunnel Syndrome. This preliminary study will determine which of three strength
magnets to use in the future.
Participants will be recruited from three primary sources. 1) Patients with a possible
diagnosis of Carpal Tunnel Syndrome who have been referred to the Orthopaedic and
Rehabilitation Clinics of OHSU for Nerve conduction studies. If after conducting these
studies a potential participant shows evidence of mild to moderate Carpal Tunnel Syndrome
s/he will be informed about the study and invited to participate in additional screening. B)
Patients seen at the National College of Natural Medicine (NCNM) Clinics who have a clinical
diagnosis of Carpal Tunnel Syndrome will be informed about the study and invited to enter
the screening process for further eligibility. C) Participants will also be recruited from
the general public including staff and students at OHSU and NCNM).
Eligibility will be determined through a stepwise process including telephone screening for
general eligibility, Nerve Conduction screening for electrodiagnostic eligibility, and
Boston Carpal Tunnel Questionnaire screening for symptom severity eligibility. Those
potential participants who meet all eligibility requirements will be randomized to one of
three magnetic field dosages. They will be provided with a ¾" diameter x 1/8" thick magnet
which they will be required to apply for six weeks during the hours of sleep. Over the
course of the study participants will have four visits to the General Clinical Research
Center of OHSU and three visits to the Orthopaedic and Rehabilitation Clinics of OHSU for
Nerve Conduction studies to be performed by either Dr. Nels Carlson or Dr. Hans Carlson.
Questionnaires to be completed during the course of the study include a general health
information and demographics questionnaire, the Boston Carpal Tunnel Questionnaire, which
will be completed on six occasions, a general symptoms checklist and a Post Treatment
Participant satisfaction questionnaire.
Recruitment, retention, compliance and safety will be analyzed using descriptive statistics.
Effectiveness of the three different strength magnets will be assessed by comparing
participants' baseline scores on the Boston Carpal Tunnel Questionnaire with their scores
after six weeks of magnet use.
Status | Active, not recruiting |
Enrollment | 60 |
Est. completion date | August 2009 |
Est. primary completion date | June 2009 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years to 65 Years |
Eligibility |
Inclusion Criteria: Age range (18-65 years) Both genders Hand or wrist pain with paresthesias or numbness in any or all fingers, predominating in a median nerve distribution, and especially occurring at night Symptoms present for at least 3 months No prior treatment with magnet therapy Baseline BCTQ >2.0 on SSS subscale Meet specific EDX inclusion/ exclusion criteria listed in Table 1 (below) Willing and able to provide informed consent Ability to read English fluently Exclusion Criteria: Use of narcotic analgesia Corticosteroid injection into the carpal tunnel within previous 3 months Prior carpal tunnel surgery on affected side History of wrist or hand fracture on the symptomatic limb Skin rash or irritation on the wrist Participant (or bed partner) wearing a pacemaker or other electronic device Current pregnancy, less than 3 months postpartum, nursing, or planning a pregnancy Plans to move from area during the time frame of the study Inability to tolerate the baseline screening nerve conduction study Unable or unwilling to comply with the protocol Collecting workers' compensation or social-security disability benefits Involved in litigation regarding pain or disability Development of a rash or skin irritation to the tape applied to the wrist during a run-in baseline test period Concomitant medical conditions including: Insulin-dependent diabetes mellitus History of chronic renal failure or renal dialysis or forearm fistulae History of generalized peripheral neuropathy History of other neurologic disorders which may confuse the diagnosis of carpal tunnel syndrome, including but not limited to stroke, cervical radiculopathy, myelopathy, subdural hematoma, brain tumor Inflammatory articular disease or tendonitis of the involved hand or wrist Other disorders known to predispose to carpal tunnel syndrome including acromegaly, multiple myeloma, amyloidosis Cancer Table 1. Electrodiagnostic (EDX) Inclusion and Exclusion Criteria Inclusion Criteria - Median nerve onset sensory latency > 3.5 ms at 13 cm - Median-ulnar across palm latency difference = 0.4 ms - Median-radial to thumb latency difference = 0.7 ms - Median-ulnar to ring finger latency difference = 0.5ms ED Exclusion Criteria - Absent sensory nerve action potential (SNAP) - Median nerve distal motor latency > 6.0 ms |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Factorial Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | National College of Natural Medicine | Portland | Oregon |
Lead Sponsor | Collaborator |
---|---|
National College of Natural Medicine | National Center for Complementary and Integrative Health (NCCIH), Oregon Health and Science University |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Boston Carpal Tunnel Questionnaire Symptom Severity Scale | Baseline, Wks 2, 4, 6, 18 | No | |
Secondary | 1. Electrophysiological recovery of median nerve | Baseline, 6 weeks, 18 weeks | Yes | |
Secondary | 2. General symptom questionnaire | Baseline and on completion of intervention phase | No | |
Secondary | 3. Compliance with treatment | Baseline to study completion | No |
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