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Estrogen Hormone Protocol

This study has been completed.
Information provided by:
National Institute on Aging (NIA) Identifier:
First received: October 29, 1999
Last updated: December 10, 2009
Last verified: September 2009
Estrogen is a hormone that is dominant in the female reproductive system. In women, most estrogen is produced by the ovaries. Men produce estrogen by converting testosterone into estrogen. Because this hormone also has many beneficial effects on brain cells, it currently is being studied as a treatment for Alzheimer's disease. The enzyme that forms the neurotransmitter acetylcholine is promoted in the presence of estrogen. Several very small clinical studies have demonstrated improvement in cognitive function and mood measures in women with Alzheimer's disease who take estrogen.

Condition Intervention Phase
Alzheimer Disease Drug: Estrogen Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Masking: Double
Primary Purpose: Treatment

Resource links provided by NLM:

Further study details as provided by National Institute on Aging (NIA):

Estimated Enrollment: 120
Study Start Date: October 1995
Study Completion Date: January 1999
Primary Completion Date: January 1999 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   60 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Women with a diagnosis of Alzheimer's disease who currently are not taking estrogen replacement therapy, who have had a hysterectomy, and who are in stable general health.

Exclusion Criteria:

  • Patients with an uncontrolled health problem, such as untreated high blood pressure or thyroid disease.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00000177

  Show 25 Study Locations
Sponsors and Collaborators
National Institute on Aging (NIA)
Principal Investigator: Leon Thal, MD. University of California, San Diego
  More Information

Additional Information:
Publications: Identifier: NCT00000177     History of Changes
Other Study ID Numbers: IA0001
3U01AG010483-08S2 ( U.S. NIH Grant/Contract )
Study First Received: October 29, 1999
Last Updated: December 10, 2009

Keywords provided by National Institute on Aging (NIA):
Alzheimer's disease

Additional relevant MeSH terms:
Alzheimer Disease
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Neurodegenerative Diseases
Neurocognitive Disorders
Mental Disorders
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs processed this record on September 21, 2017