About this trial
The purpose of this clinical trial is to determine whether targeted nutritional changes can improve symptoms of painful diabetic neuropathy. Impaired blood flow to peripheral nerves-resulting in reduced oxygen delivery and subsequent nerve injury-is a well-established contributor to neuropathy. Prior studies have shown that a whole-food, plant-based diet without added oils can improve or even reverse arterial disease, suggesting a potential mechanism for enhancing nerve perfusion and function.
This study is a randomized controlled trial comparing a whole-food, plant-based diet with standard pharmacologic management for painful diabetic neuropathy.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Definitive diagnosis of type II diabetes mellitus (HgA1c ≥ 6.5) or pre-diabetes (HgA1c 5.7-6.4)
objective documentation of peripheral neuropathy on EMG/NCS testing defined as a sural-to-radial amplitude ratio of 0.21 or less
presence of painful neuropathy in addition to decreased sensation
with pain rated ≥4/10 on a 0-10 numerical rating scale (NRS)
Disqualifiers
Potential causes of neuropathy other than type II diabetes mellitus (as listed below)
type I diabetes
vitamin B12 deficiency
folate deficiency
Trial design
Crossover
Treatments tested in this trial
Diet
Other interventionPlant-based diet
Medical management
Other interventionMedication optimization
Treatment groups
Trial outcomes
Primary outcomes
Numerical Rating Scale (NRS)
Numerical Rating Scale (NRS) is a 0-10 pain score with 0 being no pain and 10 being the worst pain ever.
Average pain on Numerical Rating Scale (NRS)
Patient will be asked what his or her "average" pain has been over the last 3 days. This will be on the Numerical Rating Scale (NRS) for pain where 0 is no pain and 10 is the worst pain ever.
≥50% improvement of pain
Patient will be asked if his or her average pain over the past 3 days is ≥50% better than baseline pain. This will be comparing the Numerical Rating Scale (NRS) for pain where 0 is no pain and 10 is the worst pain ever.
≥75% improvement of pain
Patient will be asked if his or her average pain over the past 3 days is ≥75% better than baseline pain. This will be comparing the Numerical Rating Scale (NRS) for pain where 0 is no pain and 10 is the worst pain ever.
Secondary outcomes
Worst Pain Score on Numerical Rating Scale (NRS)
Patient will be asked what his or her worst pain is on a daily basis using the Numerical Rating Scale (NRS) for pain where 0 is no pain and 10 is the worst pain ever.
Numbness location
Patient asked the following: How far up does your numbness go in both lower extremities: (circle one): 1. Toes 2. Mid foot 3. Entire foot 4. Ankle 5. Mid calf 6. Knee
Sleep
Patient is asked the following questions. How is your sleep? Circle one: good moderate poor 1. How many hours are you sleeping a night? \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ 2. Is your sleep improved since the start of study? \_\_\_\_\_\_\_\_\_\_\_\_\_\_ (yes or no)
Diabetes medication
Patient is asked: List your diabetes medications and doses.
Sponsors and contacts
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