Electrical Stimulation Therapy Using the MC5-A Scrambler in Reducing Peripheral Neuropathy Caused by Chemotherapy
The Efficacy of MC5-A ("Scrambler") Therapy in the Management of Chemotherapy-Induced Peripheral Neuropathy: A Phase II Pilot Trial
RATIONALE: Electronic stimulation using a MC5-A Scrambler may help relieve pain in patients who develop peripheral neuropathy while undergoing chemotherapy treatments for cancer.
PURPOSE: This phase II trial is studying how well MC5-A Scrambler therapy works in reducing peripheral neuropathy caused by chemotherapy.
Study Overview
Status
Conditions
Detailed Description
OBJECTIVES:
Primary
- To determine if MC5-A Scrambler therapy will improve the pain associated with chemotherapy-induced peripheral neuropathy in cancer patients by 20%.
Secondary
- To evaluate the effect of MC5-A therapy on specific pain and neuropathy scales.
- To evaluate the effect of MC5-A therapy on overall quality of life.
- To evaluate the effect of MC5-A therapy on other pain drugs used.
- To evaluate the toxicities of MC5-A therapy.
OUTLINE: Patients undergo gel electrode application on the skin in the most pain-free of the pain-affected area. Patients undergo treatment with the MC5-A Scrambler machine over 60 minutes once daily on days 1-10. On day 1, the treatment intensity is increased every 10 minutes to the maximum intensity individually bearable by the patient without any input of pain or discomfort. The patient should feel the disappearance of the pain during treatment as a sign that the proper nerve pathway(s) has (have) been correctly identified. Subsequent treatments begin at the highest intensity tolerated at the previous treatment. Patients with no improvement after 3 treatments discontinue treatment.
Patients complete questionnaires about symptoms, pain, and quality of life periodically.
After completion of study treatment, patients are followed up at 2 and 4 weeks, monthly for 3 months, and at 6 months.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
DISEASE CHARACTERISTICS:
Chemotherapy-induced peripheral neuropathy (CIPN) meeting the following criteria:
- More than 4 weeks since prior neurotoxic chemotherapy including taxanes (e.g., paclitaxel or docetaxel), platinum-based compounds (e.g., carboplatin, cis-platinum, oxaliplatin), vinca-alkaloids (e.g., vincristine, vinblastine, or vinorelbine), or proteosome inhibitors (e.g., bortezomib)
- Pain or symptoms of peripheral neuropathy for ≥ 1 month attributed to CIPN
- Pain stable for ≥ 2 weeks
- Average daily pain rating of ≥ 5 out of 10 using the pain numerical rating scale (0 is no pain and 10 is worst pain possible)
- No symptomatic brain metastases
PATIENT CHARACTERISTICS:
- ECOG performance status 0-2
- Life expectancy ≥ 3 months
- Not pregnant or nursing
- Negative pregnancy test
- Fertile patients must use effective contraception
- No history of an allergic reaction or intolerance to transcutaneous electronic nerve stimulation
- No pacemaker or implantable drug-delivery system (e.g., Medtronic Synchromed)
- No heart stent or vena cava clips
- No history of epilepsy or brain damage
- No other identified causes of painful paresthesias existing before chemotherapy (e.g., radiation or malignant plexopathy, lumbar or cervical radiculopathy, pre-existing peripheral neuropathy of another etiology [e.g., B12 deficiency, AIDS, monoclonal gammopathy, diabetes, heavy metal poisoning amyloidosis, syphilis, hyperthyroidism, hypothyroidism, inherited neuropathy, etc.])
- No skin conditions (e.g., open sores) that would prevent proper application of the electrodes
- No other medical or other conditions that, in the opinion of the investigators, might compromise the objectives of the study
PRIOR CONCURRENT THERAPY:
- See Disease Characteristics
- At least 30 days since prior and no concurrent investigational agents for pain control
- More than 4 weeks since prior and no concurrent celiac plexus block or other neurolytic pain control treatment
- No prior or concurrent anti-convulsants
- No concurrent neurotoxic or potentially neurotoxic chemotherapy
Concurrent pain treatments allowed provided the following criteria are met:
- Pain is not satisfactorily controlled
- Dose of the other medication has been stable for ≥ 4 weeks
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
|
Experimental: MC5-A Scramble instrument
Treatment of chronic neuropathic pain with the MC5-A device
|
Pain Rating Score
ECOG Common Toxicity Criteria for Sensory Neuropathy scale
Uniscale 0-100 scale global quality of life
Electrical stimulation for 60 minutes
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Change in Pain Score
Time Frame: 15 days
|
Change in Neumeric Rating Score for Pain as measured by a Numeric Pain Rating scale between day 0 to day 15. Scale is 0 (none) to 10 (severe) |
15 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Effect of MC5-A on Pain and Neuropathy
Time Frame: 2 weeks
|
Change on pain and neuropathy as measured by the Eastern Cooperative Oncology Group (ECOG) Common Toxicity Criteria for Sensory Neuropathy scale,0=none to 4=paralysis; the World Health Organization (WHO) Classification Scale, 0=none to 4=paralysis; and the Brief Pain Inventory-Short Form, 0=none to 4=most intense pain imaginable.
Scores will be averaged.
|
2 weeks
|
|
Effect of MC5-A on Morphine Oral Equivalent Doses Used Before and After MC5-A Therapy
Time Frame: 2 weeks
|
The change in overal equivalent doses (all narcotic doses will be converted to morphine oral equivalent doses ie as mg/24hours.
(All opiates taken will be recorded for the full 24 hours preceding the visit or phone call.
All opiates will be converted to the pnmorphine equivalent using the Morphine oral dose equivalents (MOED).
The total MOEDs taken during the 24 hours will be the sum of all opiates taken) used before intervention
|
2 weeks
|
|
Toxicity of MC5-A Therapy on Global Quality of Life Using the Uniscale Instrument
Time Frame: 2 weeks
|
Change on global quality of life.
The global quality of life will improve as measured by the Uniscale Linear Analog Scale Assessment (LASA) quality of life scale 0=as bad as it can be to 10=as good as it can be.
Scores will be averaged.
|
2 weeks
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Thomas J. Smith, MD, Massey Cancer Center
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CDR0000644516
- MCV-MCC-12110 (Other Identifier: VCU Massey Cancer Center)
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