Abstract
Objective To evaluate the efficacy and safety of epalrestat, an aldose reductase inhibitor, and epalrestat plus methylcobalamine on diabetic peripheral neuropathy, as compared with methylcobalamine. Methods A total of 444 subjects with diabetic neuropathy were enrolled in the study, and divided into methylcobalamine group(n=145), epalrestat group(n=143), and methylcobalamine combined with epalrestat group(n=156). Therapeutic efficacay was assessed in terms of clinical symptoms and physical examinations by using Michigan Neuropathy Screening Instrument(MNSI), and electrophysiological assessments. Results After 4 to 12-weeks' treatment, symptoms and signs of neuropathy(using MNSI)are significantly improved in the three groups(P 0.05). Conclusion Epalrestat is effective and safe in the treatment of diabetic neuropathy. Furthermore, epalrestat is more efficacious in ameliorating symptoms and MNCV of neuropathy than methylcobalamine. However, while no improved efficacy is shown with the combined treatment. (Chin J Endocrinol Metab, 2015, 31: 743-747) Key words: Diabetic neuropathy; Epalrestat; Methylcobalamine
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