Department of Neurology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil.
Expert Opin Pharmacother. 2022 Oct;23(15):1687-1694. doi: 10.1080/14656566.2022.2135432. Epub 2022 Oct 19.
Machado-Joseph disease or spinocerebellar ataxia type 3 (SCA3/MJD) is the leading cause of autosomal dominant ataxia worldwide. This is a slowly progressive, but very disabling disorder. Ataxia is the main clinical feature, but additional motor and non-motor manifestations may be found. Many of these manifestations are amenable to pharmacological treatments, which may impact the quality of life of affected subjects.
Authors review available literature on both disease-modifying and symptomatic pharmacological therapies for SCA3/MJD. Discussion is stratified into motor (ataxic and non-ataxic syndromes) and non-motor manifestations. Ongoing clinical trials and future perspectives are also discussed in the manuscript.
Symptomatic treatment is the mainstay of clinical care and should be tailored for each patient with SCA3/MJD. Management of ataxia is still a challenging task, but relief (at least partial) of dystonia, pain/cramps, fatigue, and sleep disorders is an achievable goal for many patients. Even though there are no disease-modifying treatments so far, recent advances in understanding the biology of disease and international collaborations of clinical researchers are now paving the way for a new era where more clinical trials will be available for this devastating disorder.
马查多-约瑟夫病或脊髓小脑共济失调 3 型(SCA3/MJD)是全世界导致常染色体显性共济失调的主要原因。这是一种缓慢进展但非常致残的疾病。共济失调是主要的临床特征,但也可能存在其他运动和非运动表现。许多这些表现都可以通过药物治疗来缓解,这可能会影响受影响患者的生活质量。
作者回顾了 SCA3/MJD 的疾病修饰和对症药物治疗的现有文献。讨论分为运动(共济失调和非共济失调综合征)和非运动表现。本文还讨论了正在进行的临床试验和未来展望。
对症治疗是临床护理的主要手段,应根据每个 SCA3/MJD 患者的情况进行调整。治疗共济失调仍然是一项具有挑战性的任务,但对于许多患者来说,缓解(至少部分缓解)肌张力障碍、疼痛/抽筋、疲劳和睡眠障碍是可以实现的目标。尽管目前还没有疾病修饰治疗方法,但对疾病生物学的最新认识以及临床研究人员的国际合作,正在为这一破坏性疾病开辟一个新时代,届时将有更多的临床试验可供选择。