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Safinamide Improves Motor Function in Parkinson's Disease
Medscape

NEW YORK (Reuters Health) Sept 03 - Safinamide improves motor function in early
Parkinson's disease, a multicenter group of researchers report.

"Safinamide is a novel experimental neuroprotectant combining several properties
of potential benefit in Parkinson's disease," Dr. R. G. Fariello, of Newron
Pharmaceuticals, Milan, Italy, and colleagues write in the August 24th issue of
Neurology. In a placebo-controlled trial, the team examined whether safinamide
improves symptoms in moderately severe Parkinson's disease.

Following a 10- to 24-day run-in period, a 12-week treatment period began. Patients
were randomly assigned to receive placebo, safinamide 0.5 mg/kg, or safinamide
1.0 mg/kg, taken daily. The primary efficacy endpoint was the number of patients
with at least 30% improvement in Unified Parkinson's Disease Rating Scale, part III
scores.

A total of 172 patients were included in the study. Of 56 patients randomized to
each group, 49 completed the placebo arm, 52 the low safinamide dose arm, and 49
the high safinamide dose arm.

"The percentage of responders at study end increased from placebo (12
responders, 21.4%) to the safinamide 0.5-mg/kg group (17 responders, 30.9%) and
was highest in the safinamide 1.0 group (21 responders, 37.5%)," Dr. Fariello's
group writes.

In a subgroup of 101 stable patients treated with a single dopamine agonist, logistic
regression analysis showed that the response was magnified by safinamide.

"These results suggest that doses of safinamide exerting ion channel block and
glutamate release inhibition add to its symptomatic effect and warrant exploration of
higher doses, they conclude."

Neurology 2004;63:746-648.

SOURCE: Reuters / Medscape
http://www.medscape.com/viewarticle/488580

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