Where Art Thou O treatment for diabetic neuropathy: the sequel

医学 临床试验 糖尿病神经病变 临床终点 皮肤病科 重症监护医学 糖尿病 内科学 内分泌学
作者
Yiğit Can Güldiken,Ayesha Malik,Ioannis N. Petropoulos,Hoda Gad,Einas Elgassim,Iuliia Salivon,Georgios Ponirakis,Uazman Alam,Rayaz A. Malik
出处
期刊:Expert Review of Neurotherapeutics [Taylor & Francis]
卷期号:23 (9): 845-851 被引量:5
标识
DOI:10.1080/14737175.2023.2247163
摘要

ABSTRACTIntroduction Having lived through a pandemic and witnessed how regulatory approval processes can evolve rapidly; it is lamentable how we continue to rely on symptoms/signs and nerve conduction as primary endpoints for clinical trials in DPN.Areas covered Small (Aδ and C) fibers are key to the genesis of pain, regulate skin blood flow, and play an integral role in the development of diabetic foot ulceration but continue to be ignored. This article challenges the rationale for the FDA insisting on symptoms/signs and nerve conduction as primary endpoints for clinical trials in DPN.Expert opinion Quantitative sensory testing, intraepidermal nerve fiber density, and especially corneal confocal microscopy remain an after-thought, demoted at best to exploratory secondary endpoints in clinical trials of diabetic neuropathy. If pharma are to be given a fighting chance to secure approval for a new therapy for diabetic neuropathy, the FDA needs to reassess the evidence rather than rely on 'opinion' for the most suitable endpoint(s) in clinical trials of diabetic neuropathy.KEYWORDS: Diabetic neuropathynerve conduction studiesskin biopsycorneal confocal microscopyclinical trials Article highlights Diabetic neuropathy is a cause of much morbidity and increased mortality with debilitating neuropathic pain, sexual dysfunction, foot ulceration, and amputation.Screening for diabetic neuropathy with a monofilament is not fit for purpose as it only identifies patients at risk of foot ulceration with advanced nerve damage.Corneal confocal microscopy is a rapid noninvasive ophthalmic imaging technique that detects early sub-clinical neuropathy and could easily be deployed alongside retinal screening.Current FDA endpoints for clinical trials in diabetic neuropathy are not fit for purpose and as a consequence we have no approved disease modifying therapies for diabetic neuropathy.Evidence rather than opinion, supports the use of corneal confocal microscopy as a primary endpoint to identify early nerve regeneration and provide a go/no-go signal for longer term trials utilizing symptoms and signs of diabetic neuropathy.Declaration of interestThe authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.Reviewer DisclosuresPeer reviewers on this manuscript have no relevant financial or other relationships to disclose.Additional informationFundingThis manuscript was not funded.
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