Evidence map›Paper›PMID 41134469›Full record

ArticleDiabetes therapy : research, treatment and education of diabetes and related disorders2025

A Multicenter, Prospective, Observational, and Single-Arm Interventional Study of Mirogabalin in Diabetic Peripheral Neuropathic Pain: Rationale and Design of Dia-NeP.

Hideki Kamiya, Ryo Suzuki, Jun Wada, Takahisa Deguchi, Tatsuhito Himeno, Shuhei Yamamoto, Taiki Toyama, Jiro Nakamura

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Article in Diabetes therapy : research, treatment and education of diabetes and related disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Hideki KamiyaDivision of Diabetes, Department of Internal Medicine, Aichi Medical University School of Medicine, 1-1, Yazakokarimata, Nagakute, Aichi, 480-1195, Japan. hkamiya@aichi-med-u.ac.jp.
Ryo SuzukiDepartment of Diabetes, Metabolism and Endocrinology, Tokyo Medical University, Tokyo, Japan.
Jun WadaDepartment of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University, Okayama, Japan.
Takahisa DeguchiDepartment of Diabetes, Metabolism and Endocrinology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.
Tatsuhito HimenoDivision of Diabetes, Department of Internal Medicine, Aichi Medical University School of Medicine, 1-1, Yazakokarimata, Nagakute, Aichi, 480-1195, Japan.
Shuhei YamamotoData Intelligence Department, Daiichi Sankyo Co., Ltd., Tokyo, Japan.
Taiki ToyamaPrimary Medical Science Department, Daiichi Sankyo Co., Ltd., Tokyo, Japan.
Jiro NakamuraDivision of Diabetes, Department of Internal Medicine, Aichi Medical University School of Medicine, 1-1, Yazakokarimata, Nagakute, Aichi, 480-1195, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesThe exact prevalence of and recent changes in diabetic polyneuropathy (DPN) and diabetic peripheral neuropathic pain (DPNP) in Japan are unclear. The oral gabapentinoid, mirogabalin besylate (mirogabalin), is effective with a good safety profile for DPNP with moderate-to-severe pain (numerical rating scale [NRS] scores ≥ 4). However, clinical evidence for mild pain (NRS scores ≤ 3) is unclear. The Dia-NeP study aims to examine: (1) the prevalences of DPN and DPNP and background factors in patients with type 2 diabetes mellitus (T2DM); and (2) the efficacy and safety of mirogabalin in patients with DPNP, including those with mild pain.

methodsThe Dia-NeP study is a multicenter, prospective study consisting of two parts, a baseline survey and an interventional study, to be conducted from March 2025 to August 2026 in patients with T2DM in Japan. The baseline survey is the observational study investigating the epidemiology of DPN and DPNP, and the interventional study is an exploratory, single-arm, open-label study of 12-week mirogabalin treatment. Of patients with T2DM enrolled in the baseline survey, those diagnosed with DPNP who have an NRS score for pain ≥ 1 will be included in the interventional study. The target sample size is 1000 to 3000 patients for the baseline survey and 100 for the interventional study. PLANNED OUTCOMES: The primary endpoint is the change from baseline in the NRS score at week 12 in the interventional study. The safety endpoint is adverse events. This study will not only show the latest prevalence of DPN and DPNP in Japan, but is also the first study to investigate the efficacy and safety of mirogabalin in patients with DPNP having mild pain, as well as moderate-to-severe pain, and is expected to provide useful evidence for future DPN and DPNP treatment.

trial registrationJapan Registry of Clinical Trials (jRCTs031240623, registered 20/January/2025, https://jrct.mhlw.go.jp/en-latest-detail/jRCTs031240623 ).

Indexed as

Diabetic peripheral neuropathic painDiabetic polyneuropathyEpidemiological surveyExploratory studyMirogabalinQuality of life

Identifiers

PMID41134469
PMCPMC12623603

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.