Estrogen Use in Protection From Cognitive Decline

November 17, 2014 updated by: Natalie Rasgon, Stanford University
This study is designed to assess the effects of estrogen therapy among postmenopausal women at risk for cognitive decline.

Study Overview

Status

Completed

Conditions

Detailed Description

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.

Study Type

Observational

Enrollment (Anticipated)

71

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Stanford, California, United States, 94070-5723
        • Stanford University School of Medicine, Dept. of Psychiatry and Behavioral Sciences

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

45 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

Women between the ages of 45 and 65 years of age, currently on estrogen therapy for 1 year prior to enrollment in study, and at risk for cognitive decline.

Description

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.)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
1
Continue current hormone therapy
2
Taper off hormone therapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Changes in cognition and brain metabolism
Time Frame: Baseline and 24 months
Baseline and 24 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Stanford University

Collaborators

National Institute on Aging (NIA)

Investigators

  • Principal Investigator: Terence Ketter, MD, Stanford University
  • Principal Investigator: Natalie Rasgon, MD, PhD, Stanford University School of Medicine, Dept of Psychiatry and Behavioral Sciences
  • Principal Investigator: Jennifer Hoblyn, MD, VA Palo Alto Health Care System

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2003

Primary Completion (Actual)

November 1, 2014

Study Completion (Actual)

November 1, 2014

Study Registration Dates

First Submitted

November 17, 2004

First Submitted That Met QC Criteria

November 17, 2004

First Posted (Estimate)

November 18, 2004

Study Record Updates

Last Update Posted (Estimate)

November 19, 2014

Last Update Submitted That Met QC Criteria

November 17, 2014

Last Verified

November 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IA0063
  • R01AG022008 (U.S. NIH Grant/Contract)
  • SPO #29004
  • Grant #R01 AG022008

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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