Effect of Ranirestat on Sensory and Motor Nerve Function in Japanese Patients with Diabetic Polyneuropathy: A Randomized Double-Blind Placebo-Controlled Study

We conducted a 26-week oral-administration study of ranirestat (an aldose reductase inhibitor) at a once-daily dose of 20 mg to evaluate its efficacy and safety in Japanese patients with diabetic polyneuropathy (DPN). The primary endpoint was summed change in sensory nerve conduction velocity (NCV)...

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Main Authors: Jo Satoh, Nobuo Kohara, Kenji Sekiguchi, Yasuyuki Yamaguchi
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Journal of Diabetes Research
Online Access:http://dx.doi.org/10.1155/2016/5383797
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author Jo Satoh
Nobuo Kohara
Kenji Sekiguchi
Yasuyuki Yamaguchi
author_facet Jo Satoh
Nobuo Kohara
Kenji Sekiguchi
Yasuyuki Yamaguchi
author_sort Jo Satoh
collection DOAJ
description We conducted a 26-week oral-administration study of ranirestat (an aldose reductase inhibitor) at a once-daily dose of 20 mg to evaluate its efficacy and safety in Japanese patients with diabetic polyneuropathy (DPN). The primary endpoint was summed change in sensory nerve conduction velocity (NCV) for the bilateral sural and proximal median sensory nerves. The sensory NCV was significantly (P=0.006) improved by ranirestat. On clinical symptoms evaluated with the use of modified Toronto Clinical Neuropathy Score (mTCNS), obvious efficacy was not found in total score. However, improvement in the sensory test domain of the mTCNS was significant (P=0.037) in a subgroup of patients diagnosed with neuropathy according to the TCNS severity classification. No clinically significant effects on safety parameters including hepatic and renal functions were observed. Our results indicate that ranirestat is effective on DPN (Japic CTI-121994).
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issn 2314-6745
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series Journal of Diabetes Research
spelling doaj-art-4c5e1e76e7de437f96e65f707bbfcd1c2025-02-03T05:59:24ZengWileyJournal of Diabetes Research2314-67452314-67532016-01-01201610.1155/2016/53837975383797Effect of Ranirestat on Sensory and Motor Nerve Function in Japanese Patients with Diabetic Polyneuropathy: A Randomized Double-Blind Placebo-Controlled StudyJo Satoh0Nobuo Kohara1Kenji Sekiguchi2Yasuyuki Yamaguchi3NTT-EAST Tohoku Hospital, 2-29-1 Yamato-machi, Wakabayashi-ku, Sendai, Miyagi 984-8560, JapanDepartment of Neurology, Kobe City Medical Center General Hospital, 4-6 Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo 650-0046, JapanDivision of Neurology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, JapanSumitomo Dainippon Pharma, Co., Ltd., 6-8 Doshomachi 2-chome, Chuo-ku, Osaka 541-0045, JapanWe conducted a 26-week oral-administration study of ranirestat (an aldose reductase inhibitor) at a once-daily dose of 20 mg to evaluate its efficacy and safety in Japanese patients with diabetic polyneuropathy (DPN). The primary endpoint was summed change in sensory nerve conduction velocity (NCV) for the bilateral sural and proximal median sensory nerves. The sensory NCV was significantly (P=0.006) improved by ranirestat. On clinical symptoms evaluated with the use of modified Toronto Clinical Neuropathy Score (mTCNS), obvious efficacy was not found in total score. However, improvement in the sensory test domain of the mTCNS was significant (P=0.037) in a subgroup of patients diagnosed with neuropathy according to the TCNS severity classification. No clinically significant effects on safety parameters including hepatic and renal functions were observed. Our results indicate that ranirestat is effective on DPN (Japic CTI-121994).http://dx.doi.org/10.1155/2016/5383797
spellingShingle Jo Satoh
Nobuo Kohara
Kenji Sekiguchi
Yasuyuki Yamaguchi
Effect of Ranirestat on Sensory and Motor Nerve Function in Japanese Patients with Diabetic Polyneuropathy: A Randomized Double-Blind Placebo-Controlled Study
Journal of Diabetes Research
title Effect of Ranirestat on Sensory and Motor Nerve Function in Japanese Patients with Diabetic Polyneuropathy: A Randomized Double-Blind Placebo-Controlled Study
title_full Effect of Ranirestat on Sensory and Motor Nerve Function in Japanese Patients with Diabetic Polyneuropathy: A Randomized Double-Blind Placebo-Controlled Study
title_fullStr Effect of Ranirestat on Sensory and Motor Nerve Function in Japanese Patients with Diabetic Polyneuropathy: A Randomized Double-Blind Placebo-Controlled Study
title_full_unstemmed Effect of Ranirestat on Sensory and Motor Nerve Function in Japanese Patients with Diabetic Polyneuropathy: A Randomized Double-Blind Placebo-Controlled Study
title_short Effect of Ranirestat on Sensory and Motor Nerve Function in Japanese Patients with Diabetic Polyneuropathy: A Randomized Double-Blind Placebo-Controlled Study
title_sort effect of ranirestat on sensory and motor nerve function in japanese patients with diabetic polyneuropathy a randomized double blind placebo controlled study
url http://dx.doi.org/10.1155/2016/5383797
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