Chinese Journal of Tissue Engineering Research ›› 2019, Vol. 23 ›› Issue (31): 5052-5058.doi: 10.3969/j.issn.2095-4344.1422

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Efficacy of entacapone and pramipexole in treating non-motor symptoms of Parkinson’s disease: a prospective randomized controlled trial 

Bei Zheng1, Wen Guoqiang2, Chen Yi1   

  1. (1Department of Neurology, Cadre Sanatorium of Hainan & Geriatric Hospital of Hainan, Haikou 571100, Hainan Province, China; 2Department of Neurology, Hainan General Hospital, Haikou 570311, Hainan Province, China)
  • Received:2019-03-10 Online:2019-11-08 Published:2019-11-08
  • Contact: Bei Zheng, Department of Neurology, Cadre Sanatorium of Hainan & Geriatric Hospital of Hainan, Haikou 571100, Hainan Province, China
  • About author:Bei Zheng, Associate chief physician, Department of Neurology, Cadre Sanatorium of Hainan & Geriatric Hospital of Hainan, Haikou 571100, Hainan Province, China

Abstract:

BACKGROUND: Individuals with Parkinson’s disease exhibit a variety of non-motor symptoms that can negatively impact quality of life. Although both entacapone and pramipexole can be used to treat Parkinson’s disease via modulation of dopamine metabolism, the ways in which these treatments differ in terms of their effects on the non-motor symptoms of Parkinson’s disease is unknown.
OBJECTIVE: To compare the differences in treating the non-motor symptoms of Parkinson’s disease of entacapone and pramipexole.
METHODS: This prospective, randomized, controlled trial will be conducted in the Geriatric Hospital of Hainan, Haikou, China. A total of 388 patients with idiopathic Parkinson’s disease will be randomly assigned to receive entacapone (n=194) or pramipexole (n=194). This study was approved by the Ethics Committee of the Geriatric Hospital of Hainan, China on August 30, 2013 (approval number: S2013-038-01). Written informed consent regarding the study protocol and surgical procedure will be obtained from all participants. This study was registered with the Chinese Clinical Trial Registry (registration number: ChiCTR1900022534) on April 15, 2019. Protocol version: 1.0.
RESULTS AND CONCLUSION: (1) The primary outcome measure will be the rate of improvement of non-motor symptoms 3 weeks after treatment. (2) Secondary outcome measures will be soluble interleukin-2 receptor and homocysteine levels in serum, which reflects inflammation, and adverse events before and 3 weeks after treatment. (3) Our self-controlled pilot study involving 100 patients showed that incidences of autonomic neurological symptoms such as postural hypotension, urinary urgency, urinary frequency, sexual dysfunction, dry mouth, and salivation, psychiatric symptoms such as cognitive dysfunction, hallucination, depression, and anxiety, and sensory abnormalities such as spasm, pain, and restless leg syndrome were remarkably reduced. Meanwhile, levels of serum soluble interleukin-2 receptor and homocysteine had noticeably decreased after treatment with entacapone and pramipexole. (4) This trial will confirm the efficacy of entacapone and pramipexole in the treatment of non-motor symptoms of Parkinson’s disease. We hope that our findings will provide direction for future clinical treatment of non-motor symptoms of Parkinson’s disease, leading to improved patient quality of life.

Key words: Parkinson’s disease, entacapone, pramipexole, autonomic neurological symptoms, psychiatric symptoms, paresthesia, non-motor symptoms, prospective self-controlled trials

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