Related Experiment Video
Updated: Jun 17, 2025

Author Spotlight: Overcoming Challenges in Drosophila Sleep Measurement Using DAM System
Published on: October 20, 2023
Relationship Between Melatonin Receptor Agonists and Parkinson's Disease
Yoshihiro Noguchi1, Rikuto Masuda1, Haruka Aizawa1
1Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan.
Ramelteon and tasimelteon show a negative association with Parkinson's disease risk. Agomelatine, however, shows a positive correlation, suggesting differential effects of melatonin receptor agonists on Parkinson's disease.
Area of Science:
- Neuroscience
- Pharmacology
- Public Health
Background:
- Parkinson's disease (PD) affects millions globally, with projected increases in incidence and prevalence.
- Novel therapeutic strategies targeting sleep and circadian rhythms are under investigation for PD.
- Melatonin receptor agonists represent a potential class of drugs influencing these systems.
Purpose of the Study:
- To investigate the association between specific melatonin receptor agonists and Parkinson's disease.
- To evaluate the safety and potential differential effects of ramelteon, tasimelteon, and agomelatine in relation to PD.
Main Methods:
- Utilized the Food and Drug Administration (FDA) Adverse Events Reporting System (FAERS) database.
- Defined Parkinson's disease cases using Standardized MedDRA Queries (SMQ) with narrow and broad preferred terms.
- Calculated the Reporting Odds Ratio (ROR) to assess the association between drug exposure and PD diagnosis.
Main Results:
- Ramelteon demonstrated a negative correlation with Parkinson's disease (ROR: 0.66, 95% CI: 0.51-0.84).
- Tasimelteon also showed a negative correlation with Parkinson's disease (ROR: 0.49, 95% CI: 0.38-0.62).
- Agomelatine exhibited a positive correlation with Parkinson's disease (ROR: 2.63, 95% CI: 2.04-3.40).
Conclusions:
- Ramelteon and tasimelteon appear to have a protective association with Parkinson's disease.
- Agomelatine may be associated with an increased risk of Parkinson's disease.
- Findings highlight the need for further research into melatonin receptor agonists for PD treatment, considering drug-specific effects and reporting system limitations.
Related Concept Videos
Parkinson's Disease: Treatment
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
Management of Insomnia
Parkinson's Disease: Overview
Sedatives and Hypnotics Drugs: Miscellaneous Agents
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
Drug-Receptor Interaction: Agonist
Agonists can bind to receptors in different ways. Some agonists bind directly to the receptor's active site, mimicking the endogenous...
Drugs Affecting Neurotransmitter Synthesis

