- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00368459
Raloxifene for Women With Alzheimer's Disease
Raloxifene in Women With AD: Randomized Controlled Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Raloxifene , a selective estrogen receptor modulator, has attracted attention as a potential treatment for Alzheimer's disease in women, but it has not been studied in this disorder.
To assess feasibility of large-scale efficacy trials and to obtain an initial estimate of treatment effect, study investigators plan to conduct a pilot, randomized, double blind, placebo-controlled, clinical trial of high-dose (120 mg daily) raloxifene. Eligible participants are postmenopausal women with late-onset Alzheimer's disease of mild-to-moderate severity taking a stable dose of an approved cholinesterase inhibitor. This pilot study is not designed to have power to detect significant, modest between-group differences of the magnitude provided by current FDA-approved therapies.
Study participants will be randomly allocated to oral raloxifene or identical placebo over a 12 month period. Outcomes of interest will be obtained at 6 and 12 months. The prespecified primary outcome is the change in the Alzheimer's Disease Assessment Scale, cognitive subscale (ADAS-cog), compared between groups at 12 months. Prespecified secondary outcomes include measures of global severity (Clinical Dementia Rating sum of boxes), function (Activities of Daily Living), behavior (Neuropsychiatric inventory), and other neuropsychological measures. Caregiver outcomes will be burden (Zarit burden inventory) and distress (from the Neuropsychiatric inventory).
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
California
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Santa Rosa, California, United States, 95403
- Kaiser Permanente Santa Rosa
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Stanford, California, United States, 94305
- Stanford University School of Medicine
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Illinois
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Springfield, Illinois, United States, 62794
- Southern Illinois University School of Medicine
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Indiana
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Indianapolis, Indiana, United States, 46202
- Indiana University Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Female
- Post menopausal
- Age at least 60 years
- Eight or more years of education with a history of premorbid literacy
- By history, fluent speaker of English
- Dementia (DSM-IV-derived criteria) present for at least six months beginning at age 60 or older
- Mild or moderate dementia, defined by Mini-Mental State examination (MMSE) score between 12 and 26, inclusive
- National Institute of Neurological and Communicative Disease and the Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) criteria for probable Alzheimer's disease (AD) based on results of a neurologist's evaluation and laboratory tests
- Neurological history and examination within normal limits for age, except for changes consistent with AD or age
- Modified Ischemia Scale score of 4 or less
- Good physical health established by medical history, physical exam, and baseline laboratory tests
- Blood pressure < 180/100 at time of entry
- No history of, or examination evidence for, current insulin-dependent diabetes, stroke thought to impair cognition (e.g., cortical or thalamic infarct), or other focal brain lesion or neurological disorder likely to affect cognition, or other serious medical illness likely to limit participant's ability to complete study protocol
- No history of pulmonary embolism, deep vein thrombosis, or retinal vein occlusion
- No Diagnostic and Statistical Manual (DSM) IV criteria for Major Depressive Episode or other Axis I psychiatric disorder, other than AD, within the past year
- Effective dose of an FDA-approved cholinesterase inhibitor for at least 6 months prior to randomization (usually donepezil 5 or 10 mg/d, rivastigmine 6 to 12 mg/d, or galantamine 16 to 24 mg/d); stable effective dose for at least 2 months prior to randomization
- No psychotropic medication within 4 weeks of study entry or stable dose (for at least 4 weeks month) of psychotropic medications
- No experimental mediation for the treatment of cognitive impairment associated with dementia within 2 months of study entry
- No raloxifene within 6 months of study entry
- No systemic estrogen, progestin, testosterone, related gonadal hormone therapy within 2 months of study entry
- No other known contraindication to raloxifene or donepezil
- A primary caregiver who knows the participant well and who is able to accompany her for regular assessments during the course of the study
- Assent or consent of participant plus informed consent from participant's next of kin or legally authorized representative
Exclusion Criteria:
1. Failure to meet inclusion criteria
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: raloxifene
oral raloxifene 120 mg once daily
|
Raloxifene is a selective estrogen receptor modulator
Other Names:
|
Placebo Comparator: placebo
identical appearing oral placebo
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Identical appearing placebo
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Alzheimer's Disease Assessment Scale, Cognitive Subscale (ADAS-cog)
Time Frame: 12 months
|
ADAS-cog, change from baseline at 12 months, compared between treatment arms. The ADAS-cog is a neuropsychological battery commonly used in trials of AD patients. Error score range 0-70. For results below, positive change represents improvement/ better performance. For the primary outcome, as well as for secondary outcomes, the reported p-values reflect the calculated p-values. |
12 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Global Rating, Clinical Dementia Rating (CDR) Sum of Boxes
Time Frame: 12 months
|
Global rating of dementia severity, change from baseline at 12 months.
Range 0-5.
For results below, positive change represents improvement/ better performance.
|
12 months
|
Function, Activities of Daily Living (ADL)
Time Frame: 12 months
|
ADL scale from the Alzheimer's Disease Cooperative Study, change from baseline at 12 months.
Range 0-78.
For results below, positive change represents improvement/ better performance.
|
12 months
|
Behavior
Time Frame: 12 months
|
Neuropsychiatric Inventory, change from baseline at 12 months.
Range 0-120.
For results below, positive change represents improvement/ better performance.
|
12 months
|
Cognitive (Neuropsychological)
Time Frame: 12 months
|
Global composite calculated as a weighted average of standardized scores of neuropsychological tests (weighted by the inverse intertest correlation matrix), change from baseline at 12 months.
There is no theoretical maximum or minimum for this cognitive composite, with a score of 0 standardized units representing no change.
For results below, positive change represents improvement/ better performance.
|
12 months
|
ADAS-cog
Time Frame: 6 months
|
Change from baseline at 6 months, compared between groups.
Error score range 0-70.
For results below, positive change represents improvement/ better performance.
|
6 months
|
Clinical Dementia Rating, Sum of Boxes
Time Frame: 6 months
|
Change from baseline at 6 months, compared between groups.
Range 0-5.
For results below, positive change represents improvement/ better performance.
|
6 months
|
Function, Activities of Daily Living
Time Frame: 6 months
|
Change from baseline at 6 months, compared between groups.
Range 0-78.
For results below, positive change represents improvement/ better performance.
|
6 months
|
Behavior
Time Frame: 6 months
|
Neuropsychiatric Inventory, change from baseline at 6 months, compared between groups.
Range 0-120.
For results below, positive change represents improvement/ better performance.
|
6 months
|
Cognition (Neuropsychological)
Time Frame: 6 months
|
Global composite calculated as a weighted average of standardized scores of neuropsychological tests (weighted by the inverse intertest correlation matrix), change from baseline at 6 months.
There is no theoretical maximum or minimum for this cognitive composite, with a score of 0 standardized units representing no change.
For results below, positive change represents improvement/ better performance.
|
6 months
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Dr Victor Henderson, Stanford University
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Mental Disorders
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Neurocognitive Disorders
- Neurodegenerative Diseases
- Dementia
- Tauopathies
- Alzheimer Disease
- Physiological Effects of Drugs
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Hormone Antagonists
- Bone Density Conservation Agents
- Estrogen Antagonists
- Selective Estrogen Receptor Modulators
- Estrogen Receptor Modulators
- Raloxifene Hydrochloride
Other Study ID Numbers
- IA0096
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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