Modafinil for narcolepsy: systematic review and meta-analysis.
BACKGROUND
To assess the effectiveness and safety of modafinil vs. no active treatment or other drugs in the treatment of narcolepsy.


METHODS
The following electronic databases were searched throughout January 2009: MEDLINE, EMBASE and The Cochrane Library. Additional references were obtained from reviewed articles. Only randomized controlled trials were included.


RESULTS
We included 9 trials involving 1,054 patients in the study. Modafinil in comparison with placebo brings significant benefit in terms of elimination of excessive daytime sleepiness assessed by: ESS scale--weighted mean difference (WMD) -2.73 points (95%CI -3.39, -2.08), MSLT test--WMD 1.11 minutes (95%CI 0.55, 1.66) and MWT test--WMD 2.82 minutes (95%CI 2.40, 3.24), as well as the number and duration of somnolence, sleep attacks and naps per day, but was not different from placebo in the number of attacks of cataplexy per day. Modafinil in comparison with placebo improved quality of life of narcoleptic patients according to SF-36 questionnaire, but was associated with more common nausea. It had similar effect on excessive daytime sleepiness as sodium oxybate and was associated with less common nausea.


CONCLUSIONS
In narcoleptic patients, modafinil in comparison with placebo is effective in the treatment of excessive daytime sleepiness, but not cataplexy.
Golicki
Dominik
D
Department of Pharmacoeconomics, Medical University of Warsaw, Warsaw, Poland. dominik.golicki@wum.edu.pl
Bala
Malgorzata M
MM
Niewada
Maciej
M
Wierzbicka
Aleksandra
A
D000293:Adolescent; D000328:Adult; D000368:Aged; D001559:Benzhydryl Compounds / Q000009:adverse effects / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D000077408:Modafinil; D009290:Narcolepsy / Q000188:drug therapy*; D018696:Neuroprotective Agents / Q000009:adverse effects / Q000627:therapeutic use*; D010919:Placebos; D016896:Treatment Outcome; D055815:Young Adult
D001559:Benzhydryl Compounds; D018696:Neuroprotective Agents; D010919:Placebos; D000077408:Modafinil