Search

Dopaminergic drugs have been widely used over the last decades for the treatment of restless legs syndrome (RLS)/Willis-Ekbom disease (WED). While the majority of studies show an initial improvement in symptoms, longer studies and clinical experience show that either treatment efficacy decreases with time, and/or augmentation develops: dopaminergic augmentation has been reported to be the main reason for treatment discontinuation and treatment failure in RLS/WED. The current review discusses the main reasons for treatment failure in RLS/WED and outlines the most recent expert-based strategies to prevent and manage it. The main strategy for preventing augmentation is to consider non-dopaminergic medications such as α2δ ligands for initial RLS/WED treatment; these effective drugs have been shown to have little risk of augmentation. Alternatively, should dopaminergic drugs be elected as initial treatment, then the daily dose should be kept low and not exceed maximum recommended doses, however, it should be kept in mind that even low dose dopaminergics can cause augmentation. Patients with low iron stores should be given appropriate iron supplementation. Daily treatment should start only when symptoms significantly impact quality of life in terms of frequency and severity; while intermittent treatment might be considered in intermediate cases. Treatment of existing augmentation should be initiated, where possible, with the elimination/correction of extrinsic exacerbating factors (iron levels, antidepressants, antihistamines, etc.). In cases of mild augmentation, dopamine agonist therapy can continue by dividing or advancing the dose, or increasing the dose if there are breakthrough nighttime symptoms. Alternatively, the patient can be switched to an α2δ ligand or rotigotine. For severe augmentation, the patient can be switched to an α2δ ligand or rotigotine, noting that rotigotine may produce augmentation at higher doses with long-term use. In more severe cases of augmentation an opioid may be considered, bypassing α2δ ligands and rotigotine., (Copyright © 2018. Published by Elsevier Ltd.)

A Task Force was established by the International Restless Legs Syndrome Study Group (IRLSSG) in conjunction with the European Restless Legs Syndrome Study Group (EURLSSG) and the RLS Foundation (RLS-F) to develop evidence-based and consensus-based recommendations for the prevention and treatment of long-term pharmacologic treatment of dopaminergic-induced augmentation in restless legs syndrome/Willis-Ekbom disease (RLS/WED). The Task Force made the following prevention and treatment recommendations: As a means to prevent augmentation, medications such as α2δ ligands may be considered for initial RLS/WED treatment; these drugs are effective and have little risk of augmentation. Alternatively, if dopaminergic drugs are elected as initial treatment, then the daily dose should be as low as possible and not exceed that recommended for RLS/WED treatment. However, the physician should be aware that even low dose dopaminergics can cause augmentation. Patients with low iron stores should be given appropriate iron supplementation. Daily treatment by either medication should start only when symptoms have a significant impact on quality of life in terms of frequency and severity; intermittent treatment might be considered in intermediate cases. Treatment of existing augmentation should be initiated, where possible, with the elimination/correction of extrinsic exacerbating factors (iron levels, antidepressants, antihistamines, etc.). In cases of mild augmentation, dopamine agonist therapy can be continued by dividing or advancing the dose, or increasing the dose if there are breakthrough night-time symptoms. Alternatively, the patient can be switched to an α2δ ligand or rotigotine. For severe augmentation the patient can be switched either to an α2δ ligand or rotigotine, noting that rotigotine may also produce augmentation at higher doses with long-term use. In more severe cases of augmentation an opioid may be considered, bypassing α2δ ligands and rotigotine., (Copyright © 2016 The Authors. Published by Elsevier B.V. All rights reserved.)