A Study of the Safety and Effectiveness of Galantamine Versus Placebo in the Treatment of Patients With Vascular Dementia or Mixed Dementia

Johnson & Johnson (J&J)

Status and phase

Completed

Phase 3

Conditions

Alzheimer Disease

Vascular Dementia

Treatments

Drug: galantamine hydrobromide

Study type

Interventional

Funder types

Industry

Identifiers

NCT00261573

CR006034

Details and patient eligibility

About

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).

Full 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.

Enrollment

593 patients

Sex

All

Ages

40+ years old

Volunteers

No Healthy Volunteers

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