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NCT06726785Recruiting

Observe Change in Nasal Swab DRD2 Gene Expression in Restless Legs Syndrome (RLS) Patients on Prolonged Dopamine Agonist Treatment

HBC Immunology Inc

Start Date

7/1/2025

Completion Date

2/27/2026

Summary

The study aims to observe changes in dopaminergic genes expression in peripheral tissue upon prolonged dopamine agonist treatment on patients with Restless Legs Syndrome (RLS). Similar studies in Parkinson's disease have shown changes in alpha-synuclein expression, which might offer insights into the dopaminergic gene regulation seen in RLS. The dopamine agonist drugs to be included in this study are: Pramipexole (Mirapex), Ropinirole (Requip), Rotigotine (Neupro), Apomorphine (Apokyn), Bromocriptine (Parlodel). Specifically, the study will collect nasal swabs of participants partitioned into two groups, those who have not used a dopamine agonist or been on a dopamine agonist for less than 1 month compared to those who have been on the medication for 6 or more months. This research could provide insight into changes in dopaminergic gene expression associated with Augmentation Syndrome (AS) which occurs after long term dopamine agonist treatment in RLS patients.

Eligibility Criteria

Age Range: 18 years to 60 years

Inclusion Criteria: * Able to provide Informed Consent * Clinical diagnosis of Restless Legs Syndrome (RLS) * On-going Treatment with a dopamine agonist Exclusion Criteria: \* Use of any medication that might affect nasal epithelial cell collection with a nasal swab

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Conditions

Restless Leg Syndrome (RLS)

Locations

Alethios Inc

San Francisco, California 94109

United States