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Background <p>Parkinson’s disease (PD) is a degenerative disorder of the nervous system. The neurobiological implications of glucagon-like peptide-1 receptor agonists (GLP-1RAs) in modifying PD risk profile remain incompletely characterized.</p> Methods <p>We searched the PubMed, Cochrane Library, and Embase databases for relevant studies up to 27 February 2025 to identify eligible clinical investigations. We conducted meta-analyses of covariate-adjusted data to evaluate the therapeutic efficacy of different GLP-1RAs in ameliorating both motor and non-motor clinical manifestations within PD cohorts.</p> Results <p>We identified six studies from the database for inclusion in the analysis. Meta-analysis demonstrated that GLP-1RAs showed potential benefits in alleviating motor symptoms compared to placebo, though the overall effect did not reach statistical significance (MD =  – 1.08, 95% CI: – 2.87 to 0.71, <i>P</i> = 0.24, <i>I</i><sup>2</sup> = 51%) involving 735 individuals (experiment group <i>n</i> = 413, control group <i>n</i> = 322). Subgroup analysis stratified by pharmacokinetic properties revealed distinct therapeutic responses across GLP-1RA preparations. Short-acting agents significantly improved motor dysfunction (MD =  – 2.93, 95% CI: – 4.72 to – 1.14, <i>P</i> = 0.001, <i>I</i><sup><i>2</i></sup> = 0%), whereas long-acting agents showed no symptomatic improvement (MD = 0.43, 95% CI: – 1.13 to 1.99, <i>P</i> = 0.59, <i>I</i><sup><i>2</i></sup> = 0%). Non-motor symptom burden, assessed via the Non-Motor Symptoms Scale, HRQoL, MDS-UPDRS Part I, showed no statistically significant improvement in PD patients treated with GLP-1RAs.</p> Conclusion <p>Short-acting GLP-1RAs could significantly improve motor symptoms, suggesting potential symptomatic benefits. However, the results are not robust enough, and further standardized studies are needed to evaluate their role in disease.</p>

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Clinical efficacy of GLP-1 receptor agonists in the treatment of Parkinson’s disease: a systematic review and meta-analysis of randomized controlled trials

  • 期刊论文

  • 发表日期：

    2025年8月4日

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  • Yujing Zhang,
  • Cong Wang,
  • Yuqing Wang,
  • Tianjun Wang

摘要

Background

Parkinson’s disease (PD) is a degenerative disorder of the nervous system. The neurobiological implications of glucagon-like peptide-1 receptor agonists (GLP-1RAs) in modifying PD risk profile remain incompletely characterized.

Methods

We searched the PubMed, Cochrane Library, and Embase databases for relevant studies up to 27 February 2025 to identify eligible clinical investigations. We conducted meta-analyses of covariate-adjusted data to evaluate the therapeutic efficacy of different GLP-1RAs in ameliorating both motor and non-motor clinical manifestations within PD cohorts.

Results

We identified six studies from the database for inclusion in the analysis. Meta-analysis demonstrated that GLP-1RAs showed potential benefits in alleviating motor symptoms compared to placebo, though the overall effect did not reach statistical significance (MD =  – 1.08, 95% CI: – 2.87 to 0.71, P = 0.24, I2 = 51%) involving 735 individuals (experiment group n = 413, control group n = 322). Subgroup analysis stratified by pharmacokinetic properties revealed distinct therapeutic responses across GLP-1RA preparations. Short-acting agents significantly improved motor dysfunction (MD =  – 2.93, 95% CI: – 4.72 to – 1.14, P = 0.001, I2 = 0%), whereas long-acting agents showed no symptomatic improvement (MD = 0.43, 95% CI: – 1.13 to 1.99, P = 0.59, I2 = 0%). Non-motor symptom burden, assessed via the Non-Motor Symptoms Scale, HRQoL, MDS-UPDRS Part I, showed no statistically significant improvement in PD patients treated with GLP-1RAs.

Conclusion

Short-acting GLP-1RAs could significantly improve motor symptoms, suggesting potential symptomatic benefits. However, the results are not robust enough, and further standardized studies are needed to evaluate their role in disease.