1st July 2012 - New research
FIPAMEZOLE FOR DYSKINESIA IN PARKINSON'S DISEASE
Neurology 2012 Jun 27 [Epub ahead of print] (Lewitt PA, Hauser RA, Lu M,
Nicholas AP, Weiner W, Coppard N, Leinonen M, Savola JM.) Complete abstract
Fipamezole is a new a(2)-adrenergic receptor antagonist being assessed for its
use in treating the dyskinesia that can occur in Parkinson's Disease. Dyskinesia
is abnormal physical movements, in the form of writhing or jerky movements, that
can be caused by chronic use of L-dopa. Over half of people taking L-dopa can
eventually be affected by dyskinesia. The following video shows mild to moderate
dyskinesia
Video. The following video shows severe
dyskinesia
Video.
The study
was carried out in the U.S.A. and India. The total study population showed no
statistically significant difference. However,
because of the differences between the U.S. and Indian study populations,
a prespecified subgroup analysis of U.S. subjects was conducted, showing
fipamezole at 90 mg moderately reduced dyskinesia that was due to to L-dopa. The
response was shown to be according to the dose used when assessing the different dosages (30mg, 60mg, and 90 mg fipamezole). Fipamezole induced mild
and transient blood pressure elevation and was associated with what the authors
describe as "an acceptable profile of adverse effects." For a printable version of this article
click here.
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