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Parkinson disease

Intestinal levodopa infusion in PD—the first randomized trial

The first randomized, placebo-controlled trial of intrajejunal levodopa provides support for the benefits of continuous dopaminergic drug delivery. Motor fluctuations in patients with advanced Parkinson disease were markedly improved. In clinical practice, the symptomatic benefits of this treatment need to be weighed carefully against its adverse effect profile.

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Correspondence to Regina Katzenschlager.

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Competing interests

R.K. has received research funding from Novartis, Bial and Schering-Plough. Both authors have received consultancy fees and lecture fees in relation to clinical drug development programmes for Parkinson disease from Abbvie and Novartis. In addition, R.K. has received fees for consultancy and lectures from AOP Orphan, Biogen, Britannia, Ever Pharma, Lundbeck, Stada and UCB, and W.P. has received fees for consultancy and lectures from Astra Zeneca, Boehringer-Ingelheim, GlaxoSmithKline, Merck Serono, Merz Pharmaceuticals, Orion Pharma, Teva and UCB.

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Katzenschlager, R., Poewe, W. Intestinal levodopa infusion in PD—the first randomized trial. Nat Rev Neurol 10, 128–129 (2014). https://doi.org/10.1038/nrneurol.2014.26

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