The Efficacy of Galantamine Treatment on Attention in Patients With Alzheimer's Disease

This study will examine whether the administration of galantamine is effective for improvement of attention and more effective for patients with serious disturbance of attention by administering galantamine to patients with Alzheimer's dementia and performing an attention test on baseline, week 4 and 12.

Study Overview

• Status: Completed
• Conditions: Alzheimer's Disease
• Intervention / Treatment: Drug: Galantamine

Detailed Description

This is an open label (all people know the identity of the intervention), multi-center, prospective study investigating the effect of galantamine on the attention of Alzheimer's dementia patients. The objectives of this study include the evaluation of the relationship between change in attention after 4 weeks of galantamine administration and to investigate the effect of study drug after 12 weeks administration (the difference in the improvement of attention after the administration of galantamine). The secondary objective of this study is to clarify the causal relationship between improvement of attention and activities of daily living (ADL). The design of this study is prospective, open-label, multi-center study. Study populations are probable Alzheimer's dementia patients diagnosed by NINCDS-ADRDA (National Institute of Neurological and Communicative Disorders and Stroke and the Alzheimer's disease and Related Disorders Association), DSM-IV (Diagnostic and Statistical Manual of Mental Disorders) criteria. The efficacy of study drug will be assessed by evaluating cognitive function, attention and behavioral symptoms before and after the treatment using the following assessment tools: ADAS-K-cog11 (Alzheimer's Disease Assessment Scale - cognitive subscale), computerized attention test and activities of daily living. Safety evaluations include adverse event monitoring and clinical lab tests. The patient is administered oral galantamine 8 mg/day for the first 4 weeks and then 16 mg/day. The dose of galantamine is increased up to 24 mg if tolerated.

• Study Type: Interventional
• Enrollment (Actual): 99
• Phase: Phase 4

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 50 years to 85 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Alzheimer's disease according to the criteria of DSM-IV, NINCDS-ADRDA
• K-MMSE (Korean - Mini Mental State Exam) is 10 to 24
• Reliable Guardian available to the patients
• Patient or guardian provided written informed consent before entering into the clinical trial

Exclusion Criteria:

• Acetylcholine esterase inhibitors used to treat dementia taken within 30 days of the beginning in this clinical trial
• Neurodegenerative diseases (eg Parkinson's disease, Pick's disease, Huntington's disease, Down syndrome)
• Dementia related to head trauma and dementia related to brain damage due to cerebral hypoxia (hypoxic brain damage after cardiopulmonary resuscitation, hypoxic brain damage after surgery, hypoxic brain damage due to addiction, hypoxic brain damage due to shock)
• brain tumor, nerve syphilis, meningitis, encephalitis
• epilepsy

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Galantamine	Drug: Galantamine; Orally administered Galantamine 8 mg/day for the first 4 weeks. Thereafter the dose will be increased to 16 mg/day. If tolerated, the dose of galantamine can be increased up to 24 mg/day.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change From Baseline in Simple Reaction Time	The Simple Reaction Time is a computerized attention test that evaluates the patient's reaction time when the color of the computer screen changes from black to white by performing a total of 70 times for six minutes.	Baseline, Week 12
Change From Baseline in Choice Reaction Time	The Choice Reaction Time is a computerized attention test that evaluates the reaction time and the number of errors by showing patients one card on the computer screen and making them find the same one among similar four cards. The test is performed a total of 12 times.	Baseline, Week 12

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change From Baseline in Alzheimer's Disease Assessment Scale - Cognitive Subscale (ADAS-Cog)	The Alzheimer's disease Assessment Scale-Cognitive subscale (ADAS-Cog) is an instrument used to assess cognitive dysfunction in individuals with Alzheimer disease and other dementias. It consists of 11 items, with scores ranging from 1 to 70. Maximum score is 70. Higher scores indicate worsening.	Baseline, Week 12
Change From Baseline in Korean Version of Disability Assessment for Demential Scale (DAD-K)	DAD-K is the Korean version of the Assessment for Dementia Scale, a tool developed to evaluate the Alzheimer patients' function including both basic and instrumental Activities of Daily Livings (ADL). It evaluates one function from various perspectives including behavior initiation, plan and preparation, and valid performance. It consists of 10 questions, each can score either 0 (no) or 1 (yes), if not applicable, patient will check on "not applicable (x)" which will not count in the calculation. Scores range from 0 to 100. Higher score represents better function	Baseline, Week 12
Change From Baseline in Seoul-Instrumental Activities of Daily Livings (S-IADL)	The Seoul-Instrumental Activities of Daily Living (S-IADL) assesses patients' abilities to perform instrumental and social activities of daily living. These include the ability to prepare a balanced meal, remember appointments, keep financial records, remember to take medication, and so on. It is composed of 15 items, with scores ranging from 0 to 45. Lower scores indicate better functioning.	Baseline, Week 12

Collaborators and Investigators

• Sponsor: Janssen Korea, Ltd., Korea

Study record dates

Study Major Dates

• Study Start: October 1, 2006
• Primary Completion (Actual): February 1, 2009
• Study Completion (Actual): February 1, 2009

Study Registration Dates

• First Submitted: January 21, 2010
• First Submitted That Met QC Criteria: January 21, 2010
• First Posted (Estimate): January 22, 2010

Study Record Updates

• Last Update Posted (Estimate): December 24, 2012
• Last Update Submitted That Met QC Criteria: November 23, 2012
• Last Verified: November 1, 2012

More Information

Terms related to this study

• Keywords: Alzheimer's disease; Dementia; Galantamine
• 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; Neurotransmitter Agents; Molecular Mechanisms of Pharmacological Action; Autonomic Agents; Peripheral Nervous System Agents; Cholinergic Agents; Enzyme Inhibitors; Nootropic Agents; Cholinesterase Inhibitors; Parasympathomimetics; Galantamine
• Other Study ID Numbers: CR015850; GAL-KOR-21 (Other Identifier: Janssen Korea, Ltd., Korea); GALALZ4039 (Other Identifier: Janssen Korea, Ltd., Korea)