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FDA Approves Boehringer Ingelheim's Pramipexole for the Treatment of Moderate-to-Severe Primary Restless Legs Syndrome (RLS)
Ingelheim, Germany, November 10 (ots/PRNewswire) -
- Millions of People Worldwide Living With RLS to Benefit as Treatment Becomes Globally Available
Boehringer Ingelheim announced today that the U.S. Food and Drug Administration (FDA) has approved pramipexole, a non-ergot dopamine agonist, for the treatment of moderate to severe primary Restless Legs Syndrome (RLS)(1). This is an important milestone for pramipexole (Mirapexin(R) / Sifrol(R) / Mirapex(R)), which was already approved throughout the European Union in April 2006 for this second indication.
Millions of patients worldwide are affected by RLS, a debilitating neurological condition. Restless Legs Syndrome is characterised by a compelling urge to move the legs, usually associated with uncomfortable or sometimes painful sensations in the legs, with symptoms being worse at night and while at rest(2). Restless Legs Syndrome patients may also experience daytime tiredness, mood disturbance, and inability to perform daily activities, such as travelling long distances or going to the cinema(2,3,6).
"Often patients don't realise that they have an underlying treatable medical condition that is causing these symptoms as well as sleep disturbance. With pramipexole, physicians now have another option to help manage their patients' RLS symptoms," said Professor John W. Winkelman, MD, PhD, Medical Director of the Sleep Health Center of Brigham and Women's Hospital, Boston, Massachusetts, USA.
The FDA approval was based on safety and efficacy data from four randomised, double-blind, placebo-controlled clinical trials. These studies involved approximately 1,000 patients with primary moderate-to-severe RLS who were administered pramipexole (0.125mg, 0.25mg, 0.5mg and 0.75mg) or placebo once daily, 2-3 hours before going to bed. In clinical studies, patients treated with pramipexole experienced statistically and clinically significant improvements in short- and long-term efficacy versus placebo. In three clinical studies, the mean change from baseline in total International RLS Rating (IRLS) scores for patients treated with pramipexole demonstrated a statistically significant greater improvement compared with placebo-treated patients. In a fourth study, efficacy was sustained with pramipexole over a period of nine months, including a six-month open label treatment period followed by a 12-week placebo-controlled withdrawal period(1,4).
"Building on nearly a decade of worldwide experience for pramipexole in the treatment of Parkinson's Disease, we are pleased that the FDA has also approved this second indication. Pramipexole will now be available to the millions of people across the globe living with RLS, helping them to enjoy a better quality of life," said Dr. Andreas Barner, Vice Chairman of the Board of Managing Directors and responsible for the Corporate Board Division Pharmaceutical Research, Development and Medicine at Boehringer Ingelheim.
About Restless Legs Syndrome (RLS)
Restless Legs Syndrome is a neurological disorder characterised by an uncontrollable urge to move the legs, usually accompanied by unpleasant and sometimes painful sensations in the legs. Restless Legs Syndrome affects up to ten percent of the population worldwide aged between 30 and 79 years(5) and around one-third of sufferers experience symptoms more than twice weekly causing moderate to severe distress(2). The motor-restlessness worsens during the evening and night causing difficulty initiating and maintaining sleep. The sleep disruption can lead to excessive daytime sleepiness and compromise work performance. Restless Legs Syndrome also has considerable impact on social activities that require immobility.
Despite many years of research and increased disease recognition, RLS still remains underdiagnosed or misdiagnosed to this day. RLS may be diagnosed with positive answers to the following criteria, which were developed by participants in the RLS Diagnosis & Epidemiology workshop at the National Institutes of Health in collaboration with members of the International Restless Legs Syndrome Study Group (IRLSSG)(7):
- Do you have an urge to move your legs, usually accompanied by uncomfortable leg sensations?(7)
- Do your symptoms begin or worsen during rest or inactivity, such as lying down or sitting?(7)
- Are your RLS symptoms partially or totally relieved by movement, such as walking or stretching?(7)
- Are your RLS symptoms worse in the evening or at night, or do they only occur in the evening and at night?(7)
Pramipexole (known in Europe under the trade names Mirapexin(R) and Sifrol(R) and in the U.S.A. as Mirapex(R)) is a compound from Boehringer Ingelheim research first approved in 1997 for the treatment of the signs and symptoms of idiopathic Parkinson's Disease, as monotherapy or in combination with levodopa.
Pramipexole was approved in April 2006 throughout the European Union for the symptomatic treatment of moderate to severe idiopathic Restless Legs Syndrome (RLS), in addition to other countries such as Australia, Brazil, Canada, Mexico, U.S.A. and others.
The most commonly reported adverse reactions in early and late Parkinson's disease in clinical trials were dizziness, involuntary movement, postural hypotension, constipation, hallucinations, headache, difficulty falling asleep, sleepiness, nausea and fatigue. The most commonly reported adverse reactions in clinical trials for Restless Legs Syndrome were nausea, headache, and tiredness.
Pramipexole may cause patients to fall asleep without any warning, even while doing normal daily activities such as driving. When taking pramipexole hallucinations may occur and sometimes patients may feel dizzy, sweaty or nauseated upon standing up. It should be noted that impulse control disorders/compulsive behaviours may occur while taking medicines to treat Parkinson's disease, including pramipexole.
The Boehringer Ingelheim group is one of the world's 20 leading pharmaceutical companies. Headquartered in Ingelheim, Germany, it operates globally with 143 affiliates in 47 countries and almost 37,500 employees. Since it was founded in 1885, the family-owned company has been committed to researching, developing, manufacturing and marketing novel products of high therapeutic value for human and veterinary medicine.
In 2005, Boehringer Ingelheim posted net sales of 9.5 billion euro while spending almost one fifth of net sales in its largest business segment Prescription Medicines on research and development.
For more information please visit www.boehringer-ingelheim.com
Disclaimer: Press Release for international use. As to the registration status in individual countries, please check with the contact address indicated below or liaise with the country-specific Boehringer Ingelheim affiliate.
INGELHEIM, Germany, November 10 /PRNewswire/ --
1. Mirapex(R) prescribing information
2. Allen RP, Walters AS, Montplaisir J, Hening W, Myers A, Bell TJ, et al. Restless Legs Syndrome prevalence and impact: REST general population study. Arch Intern Med 2005; 165: 1286-1292
3. Earley CJ. Clinical practice: Restless legs syndrome. New Engl J Med 2003: 348(21); 2103-2109
4. Data on file, Boehringer Ingelheim
5. Phillips B et al. Epidemiology of restless legs symptoms in adults. Arch Intern Med 2000; 160(14): 2137-2141
6. National Heart, Lung and Blood Institute Working Group on Restless Legs Syndrome. Restless legs syndrome: detection and management in primary care. Am Fam Physician 2000;62:108-114.
7. Allen RP, Picchietti D, Hening WA, et al. Restless legs syndrome: diagnostic criteria, special considerations, and epidemiology. A report from the restless legs syndrome diagnosis and epidemiology workshop at the National Institutes of Health. Sleep Med 2003;4:101-119.
ots Originaltext: Boehringer Ingelheim
Im Internet recherchierbar: http://www.presseportal.ch
Contact: Ursula Bardon, Corporate Division Communications, Boehringer
Ingelheim GmbH, 55216 Ingelheim/Germany, Phone: +49-6132-77-2622,