Tolerability and efficacy of armodafinil in naïve patients with excessive sleepiness associated with obstructive sleep apnea, shift work disorder, or narcolepsy: a 12-month, open-label, flexible-dose study with an extension period.

Oct 21, 2010Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine

Armodafinil’s safety and effectiveness over 12 months in patients new to treatment for sleepiness from sleep apnea, shift work disorder, or narcolepsy

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Abstract

In a 12-month study, 80% of patients with treated obstructive sleep apnea reported at least minimal improvement in overall clinical condition after receiving armodafinil.

Common adverse events included headache, occurring in 14%-24% of patients.
Thirteen percent of patients were withdrawn due to adverse events, while 4% withdrew due to insufficient efficacy.
Armodafinil did not negatively impact continuous positive airway pressure (CPAP) therapy for OSA patients.
Eighty-four percent of patients with narcolepsy reported at least minimal improvement in overall clinical condition.
Ninety-eight percent of patients with shift work disorder experienced improvement in sleepiness during night shifts.

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STUDY OBJECTIVES: This 12-month, open-label, flexible-dose study with an extension period evaluated the tolerability and efficacy of armodafinil in patients with excessive sleepiness associated with treated obstructive sleep apnea (OSA), shift work disorder (SWD), or narcolepsy.

METHODS: Armodafinil-naïve, adult patients with excessive sleepiness associated with treated OSA (n = 170), SWD (n = 108), or narcolepsy (n = 50) received armodafinil (100-250 mg) once daily (treated OSA or narcolepsy) or before night shifts (SWD). Patients with OSA were regular users of continuous positive airway pressure (CPAP) therapy. Efficacy measures included the Clinical Global Impression of Improvement (CGI-I) and the Epworth Sleepiness Scale (ESS).

RESULTS: Across the diagnosis groups, the most commonly occurring adverse event was headache (14%-24%). Forty-three patients (13%) and 13 patients (4%) were withdrawn because of adverse events and insufficient efficacy, respectively. Armodafinil did not adversely affect CPAP therapy. At the final visit, 80% (95% CI: 74.1, 86.7) of patients with treated OSA and 84% (72.7, 94.8) of patients with narcolepsy were rated on the CGI-I as at least minimally improved with regard to overall clinical condition; 98% (95.2, 100.0) of patients with SWD were rated as improved with regard to sleepiness during night shifts, including the commute to and from work. Armodafinil improved ESS total scores in patients with treated OSA (mean [SD] [95% CI] change from baseline, -7.3 [5.6] [-8.39, -6.30]) and patients with narcolepsy (-4.7 [6.0] [-7.41, -1.93]).

CONCLUSIONS: Armodafinil administered for 12 months or more was generally well tolerated and improved wakefulness in patients with excessive sleepiness associated with treated OSA, SWD, or narcolepsy. Armodafinil improved the overall clinical condition of patients with treated OSA or narcolepsy.

Tolerability and efficacy of armodafinil in naïve patients with excessive sleepiness associated with obstructive sleep apnea, shift work disorder, or narcolepsy: a 12-month, open-label, flexible-dose study with an extension period.

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