Alzheimer Disease, Vascular Dementia
Conditions
Keywords
Alzheimer's disease with cerebrovascular disease (mixed dementia), probable vascular dementia, galantamine
Brief summary
The purpose of this study is to evaluate the safety and efficacy of galantamine (a drug for treating dementia) compared to placebo in the treatment of patients with dementia related to cerebrovascular disease (vascular dementia) or dementia related to Alzheimer's disease with cerebrovascular disease (mixed dementia).
Detailed description
This multicenter, double-blind, placebo-controlled study will evaluate the safety and effectiveness of galantamine in patients with dementia related to cerebrovascular disease or related to Alzheimer's disease with cerebrovascular disease (mixed dementia). All patients will initially receive placebo for a 1-month period and then will receive galantamine (starting at a low dose and gradually increasing over 5 weeks to 12 mg twice daily) or placebo for 6 months. The primary measures of effectiveness include the change from baseline to the end of treatment in the ADAS-cog/11 score (Alzheimer's Disease Assessment Scale: sum of 11 cognitive items) and the CIBIC-plus score (Clinician's Interview Based Impression of Change - Plus Caregiver Input). Additional measures of effectiveness include the change from baseline to the end of the treatment in the ADAS-cog/13 score (Alzheimer's Disease Assessment Scale: sum of 13 cognitive items), the Disability Assessment for Dementia (DAD) score, and the Neuropsychiatric Inventory (NPI)) score. Safety evaluations (incidence of adverse events, electrocardiograms (ECGs), physical examinations, laboratory tests) will be performed throughout the study. Patients who complete the double-blind portion of the study will have the opportunity to participate in a 6-month open-label extension study in which they will receive galantamine for an additional 6 months. Effectiveness will be assessed after 6 weeks, 3 months and 6 months of open-label treatment. Safety evaluations (incidence of adverse events, ECGs, physical examinations, laboratory tests) will be performed throughout the open-label portion of the study. The study hypothesis is that galantamine will be effective in the treatment of patients with vascular or mixed dementia and will be well tolerated. Double-blind: Galantamine 12 mg or placebo by mouth twice daily for 6 months, starting at a low dose and gradually increasing over 5 weeks to the final dose; Open-label: galantamine 12 mg by mouth twice daily, starting at a low dose and gradually increasing over 6 weeks to the final dose.
Interventions
Sponsors
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE
Eligibility
Sex/Gender
ALL
Age
40 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Outpatients with a diagnosis of vascular dementia according to the NINDS-AIREN International Workshop criteria or with a diagnosis of mixed dementia (possible Alzheimer's disease with cerebrovascular disease) according to the NINCDS-ADRDA criteria * mild-to-moderate dementia (score of 10 - 25 on the Mini Mental Status Exam (MMSE) and ADAS-cog score of at least 12) * having the opportunity to perform activities of daily living (such as dressing, bathing, etc), including patients living independently in residential homes for the elderly * had onset of disease between ages 40 - 90 * have a consistent informant to accompany them on scheduled visits
Exclusion criteria
* Neurogenerative disorders such as Parkinson's disease * cognitive impairment resulting from conditions such as acute cerebral trauma, cerebral damage due to a lack of oxygen, vitamin deficiency, infections such as meningitis or AIDS, significant endocrine or metabolic disease, mental retardation, or a brain tumor * having significant psychiatric disease, active peptic ulcer, clinically significant liver, kidney or lung disorders, or heart disease * history of epilepsy, convulsions, drug abuse or alcohol abuse * females of child bearing potential without adequate contraception
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change from baseline to end of double-blind treatment in ADAS-cog/11 (Alzheimer's Disease Assessment Scale: sum of 11 cognitive items) and CIBIC-plus (Clinician's Interview Based Impression of Change - Plus Caregiver Input) scores | — |
Secondary
| Measure | Time frame |
|---|---|
| Change from baseline to the end of double-blind treatment in ADAS-cog/13, NPI, and DAD scores; Change in ADAS scores from baseline to end of open-label treatment; Incidence of adverse events; Changes in laboratory tests, ECGs and physical examinations | — |
Outcome results
None listed