Efficacy of citicoline as an add-on therapy in Parkinson's disease: a randomized, double-blind trial.
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Marano Massimo, Pilotto Andrea, Logroscino Giancarlo, Stefani Alessandro, D'Amelio Marco, Difruscolo Olimpia, Barbagallo Mario, Barone Paolo, Stocchi Fabrizio, Kiferle Lorenzo, Antonini Angelo, Donzuso Giulia, Grimaldi Luigi, Ronga Bruno, Centonze Diego, Sucapane Patrizia, Di Marzio Fabio, Marano Pietro, Mascia Marcello Mario, Magistrelli Luca, Gambardella Antonio, Di Lazzaro Vincenzo, Magliozzi Alessandro, Urso Daniele, Pierantozzi Mariangela, Davì Chiara, Reggiardo Giorgio, Gaglianone Matteo, Nicolini Gabriele, Padovani Alessandro, CITIPARK Study Group
Аннотация
OBJECTIVES: The CITIPARK study evaluated the efficacy and safety of citicoline in improving clinical outcomes and quality of life (QOL) in PD patients on dopaminergic therapies.
METHODS: The randomized, double-blind, multicenter trial compared citicoline (1000 mg/day intramuscular, two six-week cycles) with placebo for 24 weeks in PD under stable medications. The primary endpoint was change in Movement Disorder Society-Unified PD Rating Scale (MDS-UPDRS) total score; secondary endpoints included motor and non-motor subscores, QOL, clinical global impression (CGI) and safety.
RESULTS: The study enrolled 485 participants, randomizing 474 (citicoline: 303; placebo: 171). Citicoline significantly increased the likelihood of achieving a minimal clinically important difference compared with placebo (OR 2.06, 95% CI 1.06-3.99; P = 0.031) on the MDS-UDPRS total score in the modified intention-to-treat population. Among secondary outcomes, the citicoline group showed greater improvement in motor function (MDS-UPDRS III -2.97 vs -0.13; p = 0.009) and a greater improvement on CGI -II and CGI-III (3.26 vs 3.59; p = 0.021 and 9.30 vs 10.38; p = 0.018, respectively). AEs occurred in 22.1% and 27.1% of the citicoline and placebo groups, respectively.
CONCLUSIONS: Citicoline was well tolerated and associated with motor benefits compared with placebo in a highly compliant population. The results suggest a role of citicoline as a safe and possibly effective supportive therapy in PD treated with concomitant dopaminergic agents.