Botulinum toxin A: new hope for RLS?
Stanford University Center of Excellence for Sleep Disorders, 401 Quarry Road, Suite 3301, Stanford, CA 94305-5730, USA.Journal of clinical sleep medicine: JCSM: official publication of the American Academy of Sleep Medicine (Impact Factor: 2.83). 08/2006; 2(3):279-80.
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ABSTRACT: To evaluate the potential of onabotulinum toxin A (Botox®, Allergan, Inc., Irvine, California) in the treatment of restless legs syndrome (RLS). A single-arm, open-label pilot trial of onabotulinum toxin A was conducted to determine its usefulness as an injectable treatment for RLS. The primary outcome measure, change in score on the International Restless Legs Syndrome Scale, showed a statistically significant improvement in RLS during the first 4 weeks after treatment. Two of the secondary outcome measures, pain (measured using a visual analog scale) and patients' global impression of severity of illness also showed improvement. Onabotulinum toxin A warrants further study in RLS. Increasing the drug dosage, changing the dosing schedule, and increasing the number of injection sites may result in greater activity and longer duration of action.The International journal of neuroscience 08/2011; 121(11):622-5. DOI:10.3109/00207454.2011.602774 · 1.53 Impact Factor
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ABSTRACT: Introduction: Restless Legs Syndrome (RLS) is a common neurological disorder that impairs nocturnal rest, causing decreased alertness, depressed mood, reduced job performance and poor quality of life. In patients affected by severe RLS, pharmacological treatment is mandatory. Areas covered: The present review is based on an extensive Internet and PubMed search from 1994 - 2014. It focuses on drugs currently in development for the treatment of RLS. Expert opinion: The drugs currently available for treating RLS do not always allow the patient to obtain a dose capable of controlling the symptoms, particularly in the long term. There is still the need for effective and well-tolerated new drugs. Monoamine oxidase B inhibitors could be good candidates for the initial treatment of RLS, sparing stronger dopaminergic agents for later stages of the disease. Oxycodone-naloxone has demonstrated a significant and sustained effect on patients with severe RLS inadequately controlled with first-line drugs; it could be used as a long-term treatment option in severe cases of RLS for which alternative satisfactory drug regimens are unavailable. There is a paucity of data comparing medications in head-to-head trials to determine their relative effectiveness and adverse event profiles. Furthermore, there is also a need for further studies that evaluate nondopaminergic agonists and combination therapies for treating RLS.Expert Opinion on Investigational Drugs 04/2014; 23(6). DOI:10.1517/13543784.2014.907793 · 5.43 Impact Factor
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