The purpose of this study is to evaluate the efficacy and safety of galantamine treatment in patients with mild cognitive impairment...
Date First Received: October 7, 2005
Last Updated: May 11, 2007
Verified by: Johnson & Johnson Pharmaceutical Research & Development, L.L.C., May 2007
Clinical Trial Phase: Phase 3 | Start Date: April 2001
Overall Status: Completed
Estimated Enrollment: 780
Brief Summary
Official Title: “A Randomized Double Blind Placebo-Controlled Trial to Evaluate the Efficacy and Safety of Galantamine in Patients With Mild Cognitive Impairment (MCI) Clinically at Risk for Development of Clinically Probable Alzheimer's Disease.”
Condition Keyword(s):
Intervention(s):
The purpose of this study is to evaluate the efficacy and safety of galantamine treatment in patients with mild cognitive impairment.
Study Type: Interventional
Study Design: Treatment, Randomized, Double-Blind, Placebo Control, Parallel Assignment, Safety/Efficacy Study
Detailed Clinical Trial Description
This is an international, multicenter, double-blind, randomized, placebo-controlled trial.
Following a 4 week screening period, patients with mild cognitive impairment (MCI), who are clinically at risk for development of Alzheimer's disease, will be randomized to treatment with either placebo or galantamine for 24 months with either placebo or a flexible dose of galantamine. Efficacy will be evaluated by measures of memory and cognition (Alzheimer's Disease Assessment Scale of cognition for MCI [ADAS-cog/MCI] and the Clinical Dementia Rating Sum of the Boxes [CDR-SB]), global severity of dementia (Clinical Dementia Rating [CDR]), functionality (Alzheimer's Disease Cooperative Study - Activities of Daily Living adapted to MCI [ADCS-ADL/MCI]), and changes on serial magnetic resonance imaging (MRI). Safety will be assessed using adverse event reports, vital signs, laboratory parameters, physical examination and electrocardiograms. The primary study hypothesis is that galantamine will improve memory deficits associated with mild cognitive impairment and therefore improve or stabilize the patient's cognitive abilities. A second study hypothesis is that treatment with galantamine slows or delays conversion of mild cognitive impairment to the dementia often associated with probable Alzheimer's disease in these patients.
The third study hypothesis is that the treatment will be well tolerated by the patients.
Galantamine hydrobromide immediate-release tablets (4, 8, and 12 milligrams (mg)) taken by mouth 2 times daily: 4 weeks at 8mg/day, 4 weeks at 16mg/day, increased to 24mg/day for the remainder of the 24-month trial. Dose may be reduced at investigator's discretion after 12 weeks.
Intervention(s) in this Clinical Trial
- Drug: Galantamine hydrobromide
Outcome Measures for this Clinical Trial
Primary Measures
- Memory and cognition (ADAS-cog/MCI and CDR-SB scores) at 12 months and Global functional skills and the overall severity of dementia (the CDR-SB and the overall CDR) at 24 months.
Secondary Measures
- Brain atrophy assessed by MRI, Digit Symbol Coding, Alzheimer's Disease Cooperative Study-ADL scale (MCI version) at 24 months. Safety evaluations (adverse event reports, vital signs, laboratory tests, physical examination, electrocardiograms) thoughout.
Criteria for Participation in this Clinical Trial
Inclusion Criteria:
- Clinical decline of cognitive ability consistent with mild cognitive impairment
- Delayed recall score less than or equal to 10 on New York Uuniversity paragraph recall test
- Sufficient visual, hearing and communication capabilities and willingness to complete serial standard tests of cognitive function
- Have a consistent informant to accompany them on scheduled visits
- Be able to read, write and fully understand the language of the cognitive scales used in the study
Exclusion Criteria:
- Contraindications for magnetic resonance imaging, for example, presence of pacemaker or presence of metal in high risk areas
- Neurodegenerative disorders such as Parkinson's disease
- Cognitive impairment resulting from acute cerebral trauma, hypoxic cerebral damage, vitamin deficiency states, infections such as meningitis or AIDS, or primary of metastatic cerebral neoplasia
- Significant endocrine or metabolic disease
- Mental retardation
- Women who are pregnant, nursing, or lacking adequate contraception
Gender Eligibility for this Clinical Trial: Both
Minimum Age for this Clinical Trial: 50 Years
Maximum Age for this Clinical Trial: N/A
Are Healthy Volunteers Accepted for this Clinical Trial?: No
Clinical Trial Sponsor Information
Lead Sponsor: Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Overall Clinical Trial Officials and Contacts
Johnson & Johnson Pharmaceutical Research and Development, L.L.C. Clinical Trial Study Director Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Additional Information
Information obtained from ClinicalTrials.gov on July 02, 2009
Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00236574
Study ID Number: CR003145
ClinicalTrials.gov Identifier: NCT00236574
Health Authority: United States: Food and Drug Administration
Clinical Trials Authorship and Review
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