Asian Phase 2 Study for Treatment of Pain Associated With Diabetic Peripheral Neuropathy

An Asian, Phase 2, Multicenter, Randomized, Double-blind, Placebo- and Pregabalin-controlled, Dose-finding Study of DS-5565 in Patients With Pain Associated With Diabetic Peripheral Neuropathy

The purpose of this study is to investigate the effectiveness and safety of DS-5565, compared to placebo, in subjects with pain associated with diabetic peripheral neuropathy.

DS-5565 10mg/day, administered in 2 doses. Treatment period: 1 week titration and 6 weeks of fixed dose.

DS-5565 20mg/day, administered in 2 doses. Treatment period: 1 week titration and 6 weeks of fixed dose.

DS-5565 30mg/day, administered in 2 doses. Treatment period: 1 week titration and 6 weeks of fixed dose.

Mean Change in Average Daily Pain Score From Baseline Among Participants Who Received DS5565 for Pain Associated With Diabetic Peripheral Neuropathy

The mean change in average daily pain score (ADPS) was measured using a 11-point numeric rating scale (NRS; 0 [no pain] to 10 [worst possible pain]. The rating averaged over a 7-day period and was based on entries in patients' daily pain diaries. Greater mean changes (improvements) in ADPS indicated better outcomes. A minimally meaningful effect was a mean decrease of at least 1.0 point [scale of 0 to 10] versus placebo.

Mean Change in Short Form-McGill Pain Questionnaire From Baseline Among Participants Who Received DS5565 for Pain Associated With Diabetic Peripheral Neuropathy

The Short Form-McGill Pain Questionnaire (SF-MPQ) Visual Analog Scale (VAS) is reported. For VAS, participants rated pain intensity on a 100 mm-long horizontal line, where 0 mm = no pain and 100 mm = worst possible pain. Greater mean changes (improvements) in SF-MPQ indicated better outcomes.

Inclusion Criteria: Type 1 or Type 2 diabetes mellitus Painful distal symmetric polyneuropathy Average daily pain score is great than or equal to 4 Exclusion Criteria: HbA1c greater than 9.0

De-identified individual participant data (IPD) and applicable supporting clinical trial documents may be available upon request at https://vivli.org/. In cases where clinical trial data and supporting documents are provided pursuant to our company policies and procedures, Daiichi Sankyo will continue to protect the privacy of our clinical trial participants. Details on data sharing criteria and the procedure for requesting access can be found at this web address: https://vivli.org/ourmember/daiichi-sankyo/

Studies for which the medicine and indication have received European Union (EU) and United States (US), and/or Japan (JP) marketing approval on or after 01 January 2014 or by the US or EU or JP Health Authorities when regulatory submissions in all regions are not planned and after the primary study results have been accepted for publication.

Formal request from qualified scientific and medical researchers on IPD and clinical study documents from clinical trials supporting products submitted and licensed in the United States, the European Union and/or Japan from 01 January 2014 and beyond for the purpose of conducting legitimate research. This must be consistent with the principle of safeguarding study participants' privacy and consistent with provision of informed consent.

Baba M, Kuroha M, Ohwada S, Murayama E, Matsui N. Results of Mirogabalin Treatment for Diabetic Peripheral Neuropathic Pain in Asian Subjects: A Phase 2, Double-Blind, Randomized, Placebo-Controlled, Study. Pain Ther. 2020 Jun;9(1):261-278. doi: 10.1007/s40122-020-00156-6. Epub 2020 Feb 12.