Dual-release formulation, a novel principle in L-dopa treatment of Parkinson's disease.

Descombes, S; Bonnet, A M; Gasser, U E; Thalamas, C; Dingemanse, J; Arnulf, I; Bareille, M P; Agid, Y et al. · Neurology · 2001

rct · Level II

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Abstract

A single morning dose of dual-release formulation was compared with a slow-release formulation of L-dopa plus benserazide in a randomized, double-blind, cross-over study in 16 fluctuating patients with PD. The mean time to "on" was shorter with the dual-release formulation (43 +/- 31 minutes) than with the slow-release formulation (81 +/- 39 minutes) (p < 0.001), whereas the mean time to relapse to "off" was similar for both formulations. The dual-release formulation had a significantly shorter time to reach peak concentration (t(max)) and greater maximum concentration (C(max)) and area under the plasma concentration time curve (AUC(0--5 h)) than the slow-release formulation, whereas apparent elimination half-life (t(1/2)) was similar for both formulations.

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