Alpha-Stim® Postmarketing Surveys
Several postmarking surveys of the efficacy of the Alpha-Stim technology were conducted for the FDA in 2001, 2011 and 2013 by the manufacturer of Alpha-Stim, Electromedical Products International, Inc. The surveys included self-reports from 5,917 Alpha-Stim users, including civilians, service members and veterans.
The vast majority of patients (94.4%) reported no adverse side effects of CES therapy. Side effects were generally limited and disappear once the intensity of the current is reduced.
The degree of improvement in the patient’s symptoms was recorded for multiple indications for which CES was prescribed. Similar to pharmaceutical studies, a level of improvement of at least 25% was considered clinically relevant.
Condition | N | Worse | No Change | Slight <24% | Fair 25-49% | Moderate 50-74% | Marked 75-99% | Complete 100% | Clinically Significant >25% |
---|---|---|---|---|---|---|---|---|---|
Anxiety | 349 | 0.00 | 2.29 | 4.01 | 11.17 | 25.50 | 51.86 | 5.16 | 93.70 |
Stress | 259 | 0.00 | 2.32 | 4.63 | 14.29 | 27.03 | 47.88 | 3.86 | 93.05 |
Insomnia | 135 | 0.00 | 11.85 | 8.89 | 12.59 | 25.19 | 33.33 | 8.15 | 79.26 |
Depression | 184 | 0.00 | 4.35 | 5.98 | 16.85 | 20.65 | 44.57 | 7.61 | 89.67 |
Pain | 286 | 0.35 | 1.75 | 6.99 | 16.78 | 26.92 | 37.76 | 9.44 | 90.91 |
Muscle Tension | 259 | 0.77 | 2.32 | 2.32 | 16.22 | 29.34 | 42.86 | 6.18 | 94.59 |
Survey of Alpha-Stim Warranty Cards
None of the patients reported any significant side effects of the therapy even though they were explicitly asked to list them on the warranty card. A level of improvement of at least 25% was considered clinically significant.
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Psychological Conditions
Condition | N | Slight 24% | Fair 25-49% | Moderate 50-74% | Marked 75-100% | Clinically Significant >25% |
---|---|---|---|---|---|---|
Anxiety (with other) | 370 | 8.92 | 22.97 | 32.97 | 35.14 | 91.08 |
Anxiety/Depression | 58 | 5.17 | 32.76 | 32.76 | 29.31 | 94.83 |
Stress | 123 | 4.88 | 24.39 | 31.71 | 39.02 | 95.12 |
Insomnia | 163 | 6.13 | 28.83 | 28.83 | 36.20 | 93.87 |
Depression (alone) | 53 | 13.21 | 20.75 | 43.40 | 22.64 | 86.79 |
Depression (with other) | 265 | 10.94 | 23.02 | 35.09 | 30.94 | 89.06 |
Chronic Fatigue | 50 | 6.00 | 60.00 | 20.00 | 14.00 | 94.00 |
Psychological (All Cases) | 723 | 8.44 | 24.20 | 32.78 | 34.58 | 91.56 |
Pain Conditions
Condition | N | Slight <24% | Fair 25-49% | Moderate 50-74% | Marked 75-100% | Clinically Significant >25% |
---|---|---|---|---|---|---|
Back Pain | 403 | 4.96 | 27.05 | 38.96 | 29.03 | 95.04 |
Cervical Pain | 265 | 6.79 | 26.04 | 47.17 | 20.00 | 93.21 |
Hip/Leg/Foot Pain | 160 | 3.75 | 26.88 | 33.13 | 36.25 | 96.25 |
Shoulder/Arm/Hand Pain | 150 | 8.67 | 27.33 | 42.00 | 22.00 | 91.33 |
Carpal Tunnel | 25 | 0.00 | 20.00 | 68.00 | 12.00 | 100.00 |
Arthritis Pain | 188 | 5.85 | 27.13 | 46.81 | 20.21 | 94.15 |
TMJ Pain | 158 | 10.76 | 37.97 | 37.97 | 13.29 | 89.24 |
Myofascial Pain | 62 | 9.68 | 29.03 | 29.03 | 32.26 | 90.32 |
Reflex Sympathetic Dystrophy | 55 | 18.18 | 29.09 | 34.55 | 18.18 | 81.82 |
Fibromyalgia (alone) | 142 | 9.15 | 37.32 | 36.62 | 16.90 | 90.85 |
Fibromyalgia (with other) | 363 | 9.09 | 36.09 | 41.87 | 12.95 | 90.91 |
Migraine | 118 | 1.69 | 41.53 | 25.42 | 31.36 | 98.31 |
Headaches (all other) | 112 | 17.86 | 26.79 | 21.43 | 33.93 | 82.14 |
Pain (all cases) | 723 | 8.44 | 24.20 | 32.78 | 34.58 | 91.56 |