Diabetic Polyneuropathy Clinical Trial
Official title:
A Randomized, Comparison Study of the Safety and Efficacy of Spinal Cord Stimulation Versus Standard of Care Medical Management in the Treatment of Diabetic Polyneuropathy
NCT number | NCT01536236 |
Other study ID # | CRD_505 |
Secondary ID | |
Status | Withdrawn |
Phase | N/A |
First received | |
Last updated | |
Start date | October 2011 |
Est. completion date | October 2014 |
Verified date | January 2019 |
Source | Abbott Medical Devices |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
To obtain preliminary estimates of the safety and efficacy of the ANS Eon™ Implantable Pulse Generator with ANS leads in the treatment of subjects with diabetic polyneuropathy.
Status | Withdrawn |
Enrollment | 0 |
Est. completion date | October 2014 |
Est. primary completion date | October 2014 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: 1. The subject is 18 years of age or older 2. The subject has signed and received a copy of an informed consent form after the nature of the study has been fully explained. 3. The subject has a clinical diagnosis of diabetes mellitus 4. The subject has an A1C less than or equal to 10% within the last 3 months. 5. The subject has been on a stable diabetic therapy for at least 3 months without hospitalizations for control of diabetes. 6. The subject has a documented clinical diagnosis of painful diabetic distal symmetric sensory/motor polyneuropathy using the LANSS (Leeds assessment of neuropathic symptoms and signs) pain scale score of 12 or greater and the TNS (total neuropathy score) score of 20 or greater. 7. The subject has bilateral, moderate to severe pain from diabetic polyneuropathy for the previous 3 months. 8. The subject has a VAS of > 4 at Baseline, on a stable analgesic regimen consisting of any one or combination of the following agents: anticonvulsants, antidepressants, and opioids for 1 month. 9. The subject has been shown to be refractory to conservative therapy by failing a minimum of 3 conservative treatments at least one of which is a medication specifically for diabetic polyneuropathy of adequate dose and duration 10. Female subject has a negative pregnancy test. Exclusion Criteria: 1. Subject is unwilling or unable, in the opinion of the investigator, to comply with study instructions. 2. Subject has other severe pain that could confound the assessment of pain due to diabetic polyneuropathy. 3. Subject has a neuropathy that the investigator considers is not due to diabetes (e.g., significant vasculitis, collagen vascular disorder, medications known to cause neuropathies, history of familial neuropathy, drug or alcohol abuse, hepatitis, HIV, infection or pernicious anemia) 4. Subject has had any amputation. 5. Subject has a diagnosis within the past 1 year of major psychiatric disturbance. Exclusionary psychiatric diagnoses include the following Axis I disorders (DSM-IVR criteria): major depression, bipolar disorder, schizophrenia or other psychotic disorder or somatoform disorders. The Axis II disorder of borderline personality is also excluded. 6. Subject has co-existent, major systemic disease(s) that would interfere with interpretation of study results (e.g. malignancy, poorly controlled diabetes, ischemic cardiac disease, profound autonomic dysfunction or any other disease in the opinion of the investigator.) 7. Subject who has an abnormal PT, PTT, bleeding time or platelet count that might interfere with therapy. 8. Subject is currently participating in or has, within the past 30 days, participated in a study of another investigational drug or device. 9. Subject has a history of substance abuse within the past 2 years. 10. Subject has a demand-type pacemaker or implanted cardiac defibrillator. 11. Subject who require diathermy or MRIs. 12. Subject with any metallic implants that might interfere with this therapy in the opinion of the investigator; 13. Subject who has an implanted medication pump or implanted neurostimulation device. 14. Subject who currently has an active infection. 15. Subject who currently has foot ulcers. |
Country | Name | City | State |
---|---|---|---|
United States | Midwest Neurosurgery Associates | Kansas City | Missouri |
Lead Sponsor | Collaborator |
---|---|
Abbott Medical Devices |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Visual Analog Scale (VAS) | The VAS is a 100mm line that indicates severity of pain progression | 24 months | |
Secondary | Device related and serious adverse events | All adverse events that are classified as device related and/or serious will be assessed. | 24 months +/- 6 months depending on study arm randomization | |
Secondary | Neuropathy Impairment in the Lower Limbs (NIS-LL) | Neuropathy Impairment Score in the Lower Limbs (NIS-LL): The NIS-LL is a quantitative neurological examination that evaluates changes in motor, sensory and reflex activity in the lower limbs. The test has 14 items: 8 to evaluate muscle strength (64 possible points), 2 items to evaluate reflex activity (8 possible points), and 4 items to evaluate sensory activity (16 possible points). All items are tested bilaterally and the maximum score is 88 points. |
24 months | |
Secondary | Nerve conduction studies and Electromyogram (EMG) | Electromyography (EMG) is a technique for evaluating and recording the electrical activity of muscles. This test will be performed according to standard practice. | 24 months | |
Secondary | Inflammatory mediators (IL-6, IL-1ß, and CRP) | A complete blood count (CBC), comprehensive metabolic panel (CMP) and PT, (Prothrombin Time), PTT (Partial Thromboplastin Time) will be performed as well as assessment of hemoglobin A1c (HbA1c), interleukin-6 (IL-6), interleukin-1 beta (IL-1ß), and C-reactive protein (CRP) levels. HbA1c is used to evaluate the amount of glycosylated hemoglobin in the blood which is indicative of blood glucose levels. IL-6 and IL-1ß, and CRP are indicators of an inflammatory response and are consistently associated with diabetic polyneuropathy. | 24 months | |
Secondary | Vascular Doppler | A Doppler ultrasound uses reflected sound waves to evaluate blood as it flows through the major arteries and veins of the arms, legs, and neck. This test will be performed according to standard practice. | 24 months | |
Secondary | Intra-epidermal skin biopsy | A skin biopsy will be performed to assess damage to nerve fibers due to DPN. | 24 months | |
Secondary | Short Form 36 (SF-36) Quality of Life Questionnaire | The SF-36 is a 36-item tool for measuring health related quality of life from the patient's point of view. The items on the questionnaire are scored and divided into 8 sub-scales, and each subscale is also categorized as a physical component or a mental component. | 24 months |
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