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Oestrogen trial to delay the onset of memory impairment

A randomised double-blind trial of the effects of hormone therapy on delayed verbal recall in older women

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN44726453
Enrollment
146
Registered
2005-09-01
Start date
1998-01-01
Completion date
Unknown
Last updated
2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimer?s disease (AD) Nervous System Diseases Alzheimer?s disease

Interventions

Oestradiol and norethindrone versus placebo.

Sponsors

Sunnybrook and Women's College Health Sciences Centre (Canada)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. History of myocardial infarction, bypass surgery, angioplasty or unstable angina for more than one year 2. Admitted after approval from family physician 3. Non-demented memo-impaired women who are at a greater than or equal to 50% probability of developing AD

Exclusion criteria

Exclusion criteria: 1. Diagnosis of a dementing disorder, including AD 2. History of any conditions that might affect cognitive functioning, e.g., chronic alcohol or drug abuse, stroke, hypoxia, intracranial mass lesions, psychoses, brain trauma, or other neurological diseases 3. A medical condition with a probable prognosis of death less than two years or any unstable medical condition, including active hepatic dysfunction or disease 4. Conditions that might be exacerbated by oestrogen, including history of breast cancer, endometrial cancer, abnormal mammogram, abnormal pelvic ultrasound 5. Congestive heart failure (New York Heart Association [NYHA] Class III and IV) 6. History of myocardial infarction, bypass surgery, angioplasty or unstable angina within the past year 7. Current or history of thromboembolic event 8. Use of donepezil, galantamine, rivastigmine or hydergine less than two weeks before initiation of oestrogen therapy 9. Past use of any mode or dose of hormone replacement therapy for duration longer than half the period of time that it was used 10. 0.50 probability of developing AD in two years based on performance on the API 11. Less than 60 years of age 12. Not fluent in English 13. Perception: can?t read normal print with or with out glasses or can?t hear normal speech with or with out hearing aid 14. Current use of selective oestrogen receptor modulators

Design outcomes

Primary

MeasureTime frame
1. Alzheimer Disease Assessment Scale - cognitive subtest (ADAS-COG) at 1 and 2 years 2. % of cases with emergent Alzheimer's disease

Secondary

MeasureTime frame
1. Pharmacoeconomic analysis 2. Quality of life 3. Neuropsychological test performance

Countries

Canada

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026