Anti-diabetic medications to fight Parkinson's disease and dementia with Lewy bodies: a pilot study - Report - MDSpire

Anti-diabetic medications to fight Parkinson's disease and dementia with Lewy bodies: a pilot study

  • By

  • Tomasz Chmiela

  • Jarosław Dulski

  • Michael G. Heckman

  • Zhihui J. Fang

  • Zbigniew K. Wszolek

  • Jessica R. Wilson

  • May 29, 2026

  • 0 min

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Clinical Report: Exploring Anti-Diabetic Drugs for Parkinson's and DLB

Overview

This pilot study investigates the tolerability and preliminary effects of sitagliptin and dapagliflozin in patients with Parkinson's disease (PD) and Dementia with Lewy Bodies (DLB). Significant improvements in MDS-UPDRS scores were observed, particularly in the dapagliflozin group, suggesting potential symptomatic benefits.

Background

Parkinson's disease and Dementia with Lewy Bodies are progressive neurodegenerative disorders with significant impacts on motor and cognitive functions. Current treatments primarily address symptoms, highlighting the need for disease-modifying therapies. Recent evidence suggests a link between these disorders and glucose metabolism dysregulation, indicating that antidiabetic agents may offer therapeutic potential beyond glycemic control.

Data Highlights

GroupMDS-UPDRS Part 1MDS-UPDRS Part 2Total Score
Placebo---
Sitagliptin---
DapagliflozinSignificant improvement (P = 0.008)Significant improvement (P = 0.047)Significant improvement (P = 0.020)

Key Findings

  • Both sitagliptin and dapagliflozin were well-tolerated with no adverse events reported.
  • Significant improvements in MDS-UPDRS scores were noted for dapagliflozin compared to placebo.
  • No significant changes were observed in cognitive function scores across groups.
  • Only one participant in the DPP4 inhibitor group had DLB, limiting generalizability.
  • The study supports the need for larger, long-term trials to explore these findings further.

Clinical Implications

The findings suggest that dapagliflozin may provide symptomatic benefits in PD patients, warranting further investigation in larger studies. Clinicians should consider the potential of antidiabetic agents in managing neurodegenerative disorders, while remaining aware of the current lack of established disease-modifying therapies.

Conclusion

This pilot study indicates that DPP4 and SGLT2 inhibitors are safe for use in PD and DLB patients, with dapagliflozin showing promising preliminary effects on motor symptoms. Further research is essential to validate these findings and explore their implications for treatment.

Related Resources & Content

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  3. Drugs - Real World Outcomes — Managing Drug Interactions in Parkinson's Disease: Evaluating the Safety of Hypertension Treatments
  4. Frontiers in Neurology — Early neural shift detection using functional magnetic resonance imaging: a pilot study with Parkinson’s disease patients undergoing istradefylline and hybrid assistive limb interventions
  5. conexiant — CSF Biomarker May Support Lewy Body Diagnosis
  6. Update on Treatments for Parkinson's Disease Motor Fluctuations
  7. Exenatide once a week versus placebo as a potential disease-modifying treatment for people with Parkinson's disease
  8. Protein tyrosine phosphatase receptor type O serves as a key regulator of insulin resistance-induced α-synuclein aggregation in Parkinson's disease - PubMed

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