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Hormone and Information Processing Study (HIP)
Testosterone Supplementation in Men With MCI
Studie Overzicht
Toestand
Interventie / Behandeling
Gedetailleerde beschrijving
Natural age related declines in testosterone (T) are associated with decreases in cognitive abilities independent of health status. Low T levels over time are associated with increased risk for developing Alzheimer's disease (AD). These findings suggest that men with low T levels are most at risk for age-related cognitive decline and AD and therefore most likely to benefit from T supplementation to prevent the development of AD or age-associated cognitive decline. The current study will assess cognition, mood, and cerebral spinal fluid (CSF) biomarker response to T supplementation in older men with mild cognitive impairment (MCI) and low T levels.
Participants will be randomized to either receive T treatment or a placebo for six months. Participants will come in for about five visits within the span of six months where they will complete cognitive & memory tests, fill out mood questionnaires, and have their blood drawn to monitor the medication level. A sample of blood will also be taken at one visit to test for apolipoprotein E (APOE), which is a genetic risk factor associated with AD. Participants will have the option to get a spinal tap in order to measure biological markers associated with Alzheimer's disease including beta-amyloid 1-40, 42, total-tau, and phosphorylated-tau-181-231. This will require an additional two visits.
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 3
Contacten en locaties
Studie Locaties
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Washington
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Seattle, Washington, Verenigde Staten, 98108
- VA Puget Sound Health Care Systems
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Male 60-90 years of age
- Diagnosis of mild cognitive impairment (MCI)
- Low testosterone level
- Primary language is English
- Availability of an informant who knows the participant well enough to answer questions
- Stable medications for the previous 3 months
- Normal complete blood count (CBC), and no clinically significant blood chemistry
- American Urological Association (AUA) symptom score less than or equal to 19
- Body Mass Index (BMI) less than 33 and stable weight in the previous year
Exclusion Criteria:
- Prior history of prostate cancer or prostate specific antigen level greater than 4.0ng/ml
- Peripheral or vascular disease
- Significant history of alcohol abuse, current alcohol abuse (more than 2 drinks per day), or other substance abuse
- History of severe head injury (with loss of consciousness greater than 30 minutes)
- Significant neurological illness, such as Parkinson's disease, seizure disorder, multiple sclerosis, major stoke
- Smokes cigarettes
- Major psychiatric illness, such as schizophrenia or bipolar disorder
Prohibited Medications:
- Anti-convulsants
- Anti-psychotics
- Sedating antihistamines
- Sedative/hypnotics
- Benzodiazepines
- Hormone or testosterone regimens
- Gonadotropin-releasing hormone (GNRH) antagonists
- Flutamide
- Anti-depressants and/or anti-cholinesterase inhibitors, but acceptable if on stable dose for 3 months or more
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Verviervoudigen
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Placebo-vergelijker: 2
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applied topically daily for six months
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Experimenteel: Study drug; testosterone transdermal gel
Dose will be adjusted as needed to maintain a target total T level of 500-900 ng/dl
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50-100mg applied topically daily for six months
Andere namen:
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Behavioral & Mood Measure: Profile of Mood States (POMS)
Tijdsspanne: Baseline, 3 and 6 months
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Values represent self evaluation of vigor-activity.
The scale compares t-scores of participants to published norms (range 0-100), and higher scores indicate elevated emotion in subscale.
Higher t-scores in vigor-activity subscale are considered favorable.
Month 3 and Month 6 values display change from baseline.
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Baseline, 3 and 6 months
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Cognitive Changes Measured by Neuropsychological Tests: Rey Auditory Verbal Learning Test
Tijdsspanne: Baseline, 3 and 6 months
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Values represent total score in Long Delay Word List Recall.
Higher score indicates higher level of functioning (range 0-15).
Month 3 and Month 6 indicate change from baseline.
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Baseline, 3 and 6 months
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Geriatric Depression Scale (GDS)
Tijdsspanne: Baseline, Month 3, Month 6
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Values represent self evaluation of depression (range 0-30).
Higher scores indicate a more depressed mood.
Month 3 and Month 6 indicate change from baseline.
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Baseline, Month 3, Month 6
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Short-Form Health Survey (SF-36)
Tijdsspanne: Baseline, Month 3, Month 6
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Self assessment of Physical Functioning in Health Survey.
Higher scores indicate a higher level of functioning (range 0-100).
Month 3 and 6 values represent change from baseline in subscale.
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Baseline, Month 3, Month 6
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Monique Cherrier, PhD, University of Washington
Publicaties en nuttige links
Algemene publicaties
- Cherrier MM, Asthana S, Plymate S, Baker L, Matsumoto AM, Peskind E, Raskind MA, Brodkin K, Bremner W, Petrova A, LaTendresse S, Craft S. Testosterone supplementation improves spatial and verbal memory in healthy older men. Neurology. 2001 Jul 10;57(1):80-8. doi: 10.1212/wnl.57.1.80.
- Cherrier MM, Matsumoto AM, Amory JK, Ahmed S, Bremner W, Peskind ER, Raskind MA, Johnson M, Craft S. The role of aromatization in testosterone supplementation: effects on cognition in older men. Neurology. 2005 Jan 25;64(2):290-6. doi: 10.1212/01.WNL.0000149639.25136.CA.
- Cherrier MM, Matsumoto AM, Amory JK, Asthana S, Bremner W, Peskind ER, Raskind MA, Craft S. Testosterone improves spatial memory in men with Alzheimer disease and mild cognitive impairment. Neurology. 2005 Jun 28;64(12):2063-8. doi: 10.1212/01.WNL.0000165995.98986.F1.
- Cherrier MM, Matsumoto AM, Amory JK, Johnson M, Craft S, Peskind ER, Raskind MA. Characterization of verbal and spatial memory changes from moderate to supraphysiological increases in serum testosterone in healthy older men. Psychoneuroendocrinology. 2007 Jan;32(1):72-9. doi: 10.1016/j.psyneuen.2006.10.008. Epub 2006 Dec 4.
- Lu PH, Masterman DA, Mulnard R, Cotman C, Miller B, Yaffe K, Reback E, Porter V, Swerdloff R, Cummings JL. Effects of testosterone on cognition and mood in male patients with mild Alzheimer disease and healthy elderly men. Arch Neurol. 2006 Feb;63(2):177-85. doi: 10.1001/archneur.63.2.nct50002. Epub 2005 Dec 12.
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Psychische aandoening
- Hersenziekten
- Ziekten van het centrale zenuwstelsel
- Ziekten van het zenuwstelsel
- Neurocognitieve stoornissen
- Neurodegeneratieve ziekten
- Dementie
- Tauopathieën
- Cognitieve stoornissen
- Ziekte van Alzheimer
- Cognitieve disfunctie
- Fysiologische effecten van medicijnen
- Antineoplastische middelen
- Hormonen
- Hormonen, hormoonvervangers en hormoonantagonisten
- Antineoplastische middelen, hormonaal
- Androgenen
- Anabole middelen
- Testosteron
- Methyltestosteron
- Testosteronundecanoaat
- Testosteron enanthaat
- Testosteron 17 beta-cypionaat
Andere studie-ID-nummers
- 29975-A
- R01AG027156 (Subsidie/contract van de Amerikaanse NIH)
- 1R01AG027156-01A2 (Subsidie/contract van de Amerikaanse NIH)
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