Optimal Dose Escalation Strategy to Successful Achievement of High Dose Donepezil 23mg

NCT ID: NCT02550665

Last Updated: 2018-08-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

176 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-12-31

Study Completion Date

2016-10-31

Brief Summary

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This study evaluates the side effects of dose escalation in the treatment of donepezil 23mg for patients with Alzheimer's disease. Investigators randomly divide participants into three groups according to the dose escalation method; no titration, 15mg of donepezil for a month before escalation to 23mg, and alternating of 10mg and 23mg for a month before escalation to 23mg.

Detailed Description

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High dose of donepezil is currently prescribed for patients with Alzheimer's disease who showed poor response in lower dose, however the side effect profiles according to dose titration method were not clarified yet. This study aims to confirm which titration method would show better safeties and tolerabilities in the high dose donepezil treatment. Investigators include patients with moderate to severe dementia who were diagnosed as probable Alzheimer's disease and treated with donepezil 10mg at least 3 months before the study. The study duration is for 12 weeks and the titration duration is the first 4 weeks of the study. Investigators evaluate the side effects profiles and vital signs at every 4 weeks and measure blood laboratory tests at screening and the last visit.

Conditions

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Alzheimer's Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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donepezil 15mg titration

donepezil 15mg during the first 4 weeks before escalation to 23mg

Group Type EXPERIMENTAL

donepezil

Intervention Type DRUG

using different titration method for the first 4 weeks, and after the 4 weeks, 23mg/day orally

donepezil 10mg & 23 mg alternating

alternating donepezil 10mg and 23mg during the first 4 weeks before escalation to 23mg

Group Type EXPERIMENTAL

donepezil

Intervention Type DRUG

using different titration method for the first 4 weeks, and after the 4 weeks, 23mg/day orally

no titration of donepezil

no titration and direct escalation to 23mg donepezil

Group Type ACTIVE_COMPARATOR

donepezil

Intervention Type DRUG

using different titration method for the first 4 weeks, and after the 4 weeks, 23mg/day orally

Interventions

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donepezil

using different titration method for the first 4 weeks, and after the 4 weeks, 23mg/day orally

Intervention Type DRUG

Other Intervention Names

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aricept

Eligibility Criteria

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Inclusion Criteria

* dementia according to Diagnostic and Statistical Manual of Mental Disorders (DSM)-IV criteria
* probable Alzheimer's disease dementia according to National Institute on Aging-Alzheimer's Association (NIAAA) criteria
* Mini-Mental State Examination (MMSE) score of 20 or less
* General Deterioration Scale (GDS) score of 4 or more / Clinical Dementia Rating (CDR) score of 2 or more
* stable dose of 10mg donepezil at least 3 months before screening
* caregiver who can come together at every visit and give informations about side effects profiles should exist
* patients and caregivers accepted the study

Exclusion Criteria

* patients receiving other concomitant acetylcholinesterase inhibitor
* uncontrolled psychiatric disorders
* drug overuse or alcohol abuse history within 5 years
* significant uncontrolled or active medical conditions
* uncontrolled epilepsy
* patients who cannot come at scheduled visits
Minimum Eligible Age

45 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Dong-A University

OTHER

Sponsor Role collaborator

Myongji Hospital

OTHER

Sponsor Role collaborator

Seoul National University Bundang Hospital

OTHER

Sponsor Role collaborator

Seoul St. Mary's Hospital

OTHER

Sponsor Role collaborator

Chung-Ang University

OTHER

Sponsor Role collaborator

Eisai Inc.

INDUSTRY

Sponsor Role collaborator

Asan Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Jae-Hong Lee

Principal investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Asan Medical Center

Seoul, , South Korea

Site Status

Countries

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South Korea

References

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Hong YJ, Han HJ, Youn YC, Park KW, Yang DW, Kim S, Kim HJ, Kim HJ, Lee Y, Kwon M, Lee JH; ODESA study (Optimal Dose Escalation Strategy to Successful Achievement of High Dose Donepezil 23 mg). Effects of Body Weight on the Safety of High-Dose Donepezil in Alzheimer's Disease: Post hoc Analysis of a Multicenter, Randomized, Open-Label, Parallel Design, Three-Arm Clinical Trial. Dement Geriatr Cogn Disord. 2021;50(3):289-295. doi: 10.1159/000518470. Epub 2021 Sep 10.

Reference Type DERIVED
PMID: 34518459 (View on PubMed)

Hong YJ, Han HJ, Youn YC, Park KW, Yang DW, Kim S, Kim HJ, Kim JE, Lee JH; ODESA study (Optimal Dose Escalation Strategy to Successful Achievement of High Dose Donepezil 23 mg). Safety and tolerability of donepezil 23 mg with or without intermediate dose titration in patients with Alzheimer's disease taking donepezil 10 mg: a multicenter, randomized, open-label, parallel-design, three-arm, prospective trial. Alzheimers Res Ther. 2019 May 1;11(1):37. doi: 10.1186/s13195-019-0492-1.

Reference Type DERIVED
PMID: 31039806 (View on PubMed)

Other Identifiers

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JHongLee

Identifier Type: -

Identifier Source: org_study_id

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