- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT00097058
Estrogen Use in Protection From Cognitive Decline
Studieoversikt
Status
Forhold
Detaljert beskrivelse
A total of 71 postmenopausal women ages 50-65 on estrogen therapy will be randomized to continue or discontinue use of estrogen and will be followed for two years.
Participants will undergo PET and MRI scans and neuropsychological assessments initially and at the end of the two-year follow-up period. These procedures will allow us to evaluate brain metabolism and cognitive performance at baseline and two years following continuation or discontinuation of estrogen therapy.
We hypothesize that women who discontinue estrogen will show more evidence of decline than those who continue estrogen. This project will expand current knowledge of effects of estrogen by 1) determining whether estrogen use among postmenopausal women at risk for cognitive decline is protective of brain metabolism, 2) identifying early predictors for cognitive decline, and 3) developing guidelines for estrogen use in postmenopausal women.
Studietype
Registrering (Forventet)
Kontakter og plasseringer
Studiesteder
-
-
California
-
Stanford, California, Forente stater, 94070-5723
- Stanford University School of Medicine, Dept. of Psychiatry and Behavioral Sciences
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
- Women between the ages of 45 and 65
- Currently on hormone replacement
- One year or more post complete cessation of menses
- Willing to sign the Human Subject Protection Consent form prior to enrollment in the study
- Willing to be randomized to continue or discontinue estrogen therapy
- Adequately visually and auditorially acute to allow neuropsychological testing
- Beyond 8 years of educational achievement to allow adequate neuropsychological testing
- Willing to undergo brain imaging
- At risk for cognitive decline, as defined by one or more of the following: Personal or family history of mood disorder, Hypothyroidism, Diabetes, Family history of Alzheimer's, APOE-4 allele
Exclusion Criteria:
- Diagnosis of possible or probable Alzheimer's disease or dementia
- Cerebrovascular disease or uncontrolled hypertension (systolic BP >170 or diastolic BP >100)
- History of myocardial infarction within previous year or unstable heart disease
- History of significant liver disease, pulmonary disease, or current cancer
- Contraindication for MRI (metal in body, claustrophobia, etc.)
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
|---|
|
1
Continue current hormone therapy
|
|
2
Taper off hormone therapy
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Changes in cognition and brain metabolism
Tidsramme: Baseline and 24 months
|
Baseline and 24 months
|
Samarbeidspartnere og etterforskere
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Terence Ketter, MD, Stanford University
- Hovedetterforsker: Natalie Rasgon, MD, PhD, Stanford University School of Medicine, Dept of Psychiatry and Behavioral Sciences
- Hovedetterforsker: Jennifer Hoblyn, MD, VA Palo Alto Health Care System
Publikasjoner og nyttige lenker
Generelle publikasjoner
- Rasgon NL, Small GW, Siddarth P, Miller K, Ercoli LM, Bookheimer SY, Lavretsky H, Huang SC, Barrio JR, Phelps ME. Estrogen use and brain metabolic change in older adults. A preliminary report. Psychiatry Res. 2001 Jul 1;107(1):11-8. doi: 10.1016/s0925-4927(01)00084-1.
- Rasgon NL, Thomas MA, Guze BH, Fairbanks LA, Yue K, Curran JG, Rapkin AJ. Menstrual cycle-related brain metabolite changes using 1H magnetic resonance spectroscopy in premenopausal women: a pilot study. Psychiatry Res. 2001 Feb 28;106(1):47-57. doi: 10.1016/s0925-4927(00)00085-8.
- Dunkin J, Rasgon N, Wagner-Steh K, David S, Altshuler L, Rapkin A. Reproductive events modify the effects of estrogen replacement therapy on cognition in healthy postmenopausal women. Psychoneuroendocrinology. 2005 Apr;30(3):284-96. doi: 10.1016/j.psyneuen.2004.09.002.
- Rasgon NL, Geist CL, Kenna HA, Wroolie TE, Williams KE, Silverman DH. Prospective randomized trial to assess effects of continuing hormone therapy on cerebral function in postmenopausal women at risk for dementia. PLoS One. 2014 Mar 12;9(3):e89095. doi: 10.1371/journal.pone.0089095. eCollection 2014.
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- IA0063
- R01AG022008 (U.S. NIH-stipend/kontrakt)
- SPO #29004
- Grant #R01 AG022008
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .