To investigate the efficacy and safety of autologous peripheral blood stem cell based therapy in patients with diabetic painful neuropathy.
Diabetic painful neuropathy a prevalent, disabling disorder. Currently, the only effective treatments are glucose control and pain management. Diabetic neuropathy is characterized by reduction of vascularity in peripheral nerves and deficiency in neurotrophic and angiogenic factors. Recent studies have shown that bone marrow (BM)-derived stem or progenitor cells have favorable effects on the repair of cardiovascular diseases. Since these BM-derived stem or progenitor cells contain various angiogenic and neurotrophic factors, these cells have been attempted for treating experimental diabetic neuropathy, and turned out to be effective for reversing various manifestations of experimental diabetic neuropathy. However, stem-cell therapy was not proven in human study. Therefore, we will investigate the efficacy and safety of autologous peripheral blood stem cell injection in diabetic neuropathy.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Normal saline is injected in one leg of patient.
Granulocyte colony-stimulating factor (G-CSF) is injected into subcutaneous for three days prior to the blood collection (D-3 to D-1). Peripheral mononuclear stem-cell is collected by Cobe spectra apheresis system in D-day. The stem-cell (mononuclear cell) is injected into the muscle in the other side leg of patient.
SeoulNUH
Seoul, South Korea
Changes in pain for a week after the procedure
The pain scale was calculate by Numeric rating scale (NRS). We observe a change in NRS pain scores during the follow-up period.
Time frame: baseline, 4 week, 12 week
The evaluation of changes in the specific neuro-sensory system
The following tests was evaluated during the follow-up period. The pain intensity was evaluated by short-form McGill Pain Questionnaire and by sleep disturbance pain score. The quantitative change of sensory nerve was evaluated by quantitative sensory test (QST). We measure serum neuron-specific enolase (NSE), glucose, insulin and c-peptide. The amount of drug requirements will also assess at each follow-up period.
Time frame: baseline, 4 week, 12 week
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