Effects of the orexin receptor antagonist suvorexant on respiration during sleep in healthy subjects.
J Clin Pharmacol
; 55(10): 1093-100, 2015 Oct.
Article
de En
| MEDLINE
| ID: mdl-25903940
ABSTRACT
Suvorexant is an orexin receptor antagonist for treating insomnia. The maximum approved dose in the United States and Japan is 20 mg. We evaluated suvorexant effects on respiration during sleep in a randomized, double-blind, 3-period crossover study of healthy adult men (n = 8) and women (n = 4) ≤ 50 years old who received single-dose suvorexant 40 mg, 150 mg, and placebo. Respiration during sleep was measured by oxygen saturation (SpO2 , primary end point) and the Apnea Hypopnea Index (AHI). The study was powered to detect a reduction greater than 5% in SpO2 . There was no effect of suvorexant on mean SpO2 during sleep. The mean (90%CI) treatment differences versus placebo were -0.3 (-1.2-0.6) for 40 mg and 0.0 (-0.9-0.9) for 150 mg. There were no dose-related trends in individual SpO2 values. Mean SpO2 was >96% for all treatments during total sleep time and during both non-REM and REM sleep. There was no effect of either suvorexant dose on AHI. The mean (90%CI) treatment differences versus placebo were 0.8 (-0.7-2.3) for 40 mg and -0.2 (-1.7-1.3) for 150 mg. Suvorexant was generally well tolerated; there were no serious adverse experiences or discontinuations. These data from healthy subjects suggest that suvorexant lacks clinically important respiratory effects during sleep at doses greater than the maximum recommended dose for treating insomnia.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Respiration
/
Azépines
/
Triazoles
/
Antagonistes des récepteurs des orexines
/
Produits pharmaceutiques favorisant le sommeil
Type d'étude:
Clinical_trials
Limites:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Langue:
En
Journal:
J Clin Pharmacol
Année:
2015
Type de document:
Article
Pays d'affiliation:
États-Unis d'Amérique