Cited by 85Sleep and Work-Related FatigueCircadian rhythm and melatoninSleep and Wakefulness Research

Effect of modafinil on plasma melatonin, cortisol and growth hormone rhythms, rectal temperature and performance in healthy subjects during a 36 h sleep deprivation

BRUN, JOCELYNE, CHAMBA, GENEVIEÉVE, KHALFALLAH, YADH, GIRARD, PASCAL, BOISSY, ISABELLE, BASTUJI, HÉLEÉNE, SASSOLAS, GENEVIEÉVE, CLAUSTRAT, BRUNO·1998·Journal of Sleep Research

Abstract

Modafinil is an alerting substance which has been used successfully to treat narcolepsy. Nothing is known about its effect on hormone secretions. For this purpose, eight healthy young men were enrolled in a double blind trial to test the effects of modafinil on daily plasma melatonin, cortisol and growth hormone (GH) rhythms. Blood was sampled for hormone assays, every hour during the daytime and every 30 min during the nighttime. In addition, rectal temperature and mental performances were determined during the study which comprised 3 sessions, two weeks apart: a 24 h control session including a night with sleep (S1) and two 48 h sessions S2 and S3 with a sleep‐deprived night (N1) followed by a recovery night (N2). Modafinil (300 mg×2) or placebo were randomly attributed during N1 at 22 h and 8 h. As expected, performance was improved after modafinil administration and body temperature was maintained or increased. Plasma melatonin and cortisol profiles were similar after modafinil and placebo administration. The levels observed during the recovery and the control nights (N2) displayed no difference. For GH, during both sleep deprived nights, secretion was dramatically reduced compared with the control one, although the number of secretory episodes was unchanged. These data show that the alerting property of modafinil is not related to an alteration of hormone profiles and suggest that the acute modafinil administration is devoid of short‐term side‐effects.

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Crossref · 10.1046/j.1365-2869.1998.00100.x

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Authors
BRUN, J., CHAMBA, G., KHALFALLAH, Y., GIRARD, P., BOISSY, I., BASTUJI, H., SASSOLAS, G., & CLAUSTRAT, B.
Affiliations
Hospices Civils de Lyon (FR)
Corresponding author
CLAUSTRAT, BRUNO
Venue
Journal of Sleep Research
Publisher
Wiley
Published
1998-06
Volume
7
Issue
2
Pages
105-114
ISSN
  • 0962-1105 (ISSN-L)
  • 1365-2869
OpenAlex
W1983847306
Cited by
85
References
39
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2023: 2 · 2021: 2 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 2 · 2016: 5 · 2015: 1 · 2014: 4 · 2013: 4 · 2012: 1
FWCI
3.00
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Sleep Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
modafinil, sleep deprivation, melatonin, cortisol, growth hormone, circadian rhythm, rectal temperature, cognitive performance, alertness, narcolepsy treatment, recovery sleep
MeSH terms
Modafinil, Adult, Central Nervous System Stimulants, Benzhydryl Compounds, Body Temperature, Health Status, Humans, Hydrocortisone, Male, Melatonin, Narcolepsy, Psychomotor Performance, Rectum, Sleep Deprivation, Time Factors, Human Growth Hormone

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