Clinical trial NCT00000380: Growth Hormone Releasing Hormone (GHRH) Treatment for Age-Related Sleep Disturbances
Official title: Age-Related Sleep Impairment - Treatment w/GHRH
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Sleep Disorders
Keywords: Adult
Estrogen Replacement Therapy
Female
Hormone Replacement Therapy
Human
Insulin-Like Growth Factor I
Male
Placebos
Sleep Disorders
Somatotropin-Releasing Hormone
Somatotropin
Insulin-Like Growth Factor I -- secretion
Sleep Disorders -- *drug therapy
Somatotropin-Releasing Hormone -- *therapeutic use
Somatotropin -- secretion
Lead sponsor: University of Washington
Sponsor class: OTHER
Collaborators: name: National Institute of Mental Health (NIMH)
First posted: 1999-11-03
Sex: ALL
Standard ages: CHILD
ADULT
OLDER_ADULT
Primary purpose: TREATMENT

Brief summary: The purpose of this study is to examine the effects of giving growth hormone releasing hormone (GHRH) to treat sleep disorders in older men and in older women who are on estrogen replacement therapy (ERT).

Many older men and women complain of sleep disturbances. GHRH has been used successfully to treat sleep disorders in young men and may help older men and women.

40 healthy older men and 40 healthy older women on ERT will receive either GHRH or an inactive placebo.

An individual may be eligible for this study if he/she is a healthy older man or woman with sleep disturbances, and is on estrogen replacement therapy (women).

Detailed description: To examine the effects of synthetic growth hormone releasing hormone (GHRH) versus placebo on the sleep quality, 24-hour secretory pattern of growth hormone (GH), and insulin-like growth factor 1 (IGF-1) concentrations of 40 healthy older men and 40 healthy older women on estrogen replacement therapy (ERT). To determine if augmenting the GH-IGF-1 axis can improve the objective sleep quality of the older population. To determine if treatment-related changes in sleep quality are correlated with changes in GH and/or IGF-1 concentrations.

Nearly 40% of the geriatric population complain of poor sleep quality, a complaint that is validated by objective findings. The physiological consequences of age-impaired sleep are poorly understood, but may include damped circadian rhythms and impaired anabolic hormone status. Poor sleep may also account for the disproportionate prescription of sedative hypnotics to older adults which may exacerbate sleep apnea, lead to daytime carryover effects such as sedation, falls, fractures, cognitive impairment, and anterograde amnesia, and has been associated with increased morbidity and mortality. The recent NIH Consensus Conference on the Treatment of Sleep Disorders in Older People concluded that nonsedative interventions to improve sleep quality in the elderly population are obviously needed. One such intervention may be stimulation of the GH-IGF-1 axis by GHRH administration. Clinical evidence indicates sleep quality can be affected by extremes of GH status and several recent studies report acute GHRH administration improves sleep quality in young men. We have recently demonstrated that measures of sleep quality correlate with basal IGF-1 concentrations in healthy older men and ERT women.

40 healthy older men and 40 healthy older women on ERT receive either GHRH or placebo.

Eligibility criteria: Inclusion Criteria:

-

Patients must have:

Age-related sleep impairment.

-

Required:

Estrogen replacement therapy for women.

Primary outcomes:
Secondary outcomes:
Other outcomes:
Locations:
Study officials:
affiliation: UW
name: Michael Vitiello, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Merriam GR, Schwartz RS, Vitiello MV. Growth hormone-releasing hormone and growth hormone secretagogues in normal aging. Endocrine. 2003 Oct;22(1):41-8. doi: 10.1385/ENDO:22:1:41.
citation: Merriam GR, Buchner DM, Prinz PN, Schwartz RS, Vitiello MV. Potential applications of GH secretagogs in the evaluation and treatment of the age-related decline in growth hormone secretion. Endocrine. 1997 Aug;7(1):49-52. doi: 10.1007/BF02778062.
citation: Vitiello MV, Moe KE, Merriam GR, Mazzoni G, Buchner DH, Schwartz RS. Growth hormone releasing hormone improves the cognition of healthy older adults. Neurobiol Aging. 2006 Feb;27(2):318-23. doi: 10.1016/j.neurobiolaging.2005.01.010. Epub 2005 Mar 23.
citation: Vitiello MV, Larsen LH, Moe KE. Age-related sleep change: Gender and estrogen effects on the subjective-objective sleep quality relationships of healthy, noncomplaining older men and women. J Psychosom Res. 2004 May;56(5):503-10. doi: 10.1016/S0022-3999(04)00023-6.