A Study of E2020 in Patients With Dementia With Lewy Bodies (DLB), Followed by a Long-term Extension Phase

June 16, 2023 updated by: Eisai Co., Ltd.

A Multicenter, Randomized, Double-blind, Parallel-group, Placebo-controlled Study of E2020 in Patients With Dementia With Lewy Bodies (DLB), Followed by a Long-term Extension Phase

The purpose of this study is to confirm the efficacy of E2020 in patients with dementia with Lewy bodies (DLB).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This 52-week study consisted of 16-week randomized placebo-controlled (RCT, including 12-week Confirmatory Phase) and 36-week open-label extension phases. Of 142 DLB patients enrolled in the RCT phase (three arms: placebo, 5 mg, and 10 mg), 110 entered the extension phase. The placebo group of the RCT phase initiated active treatment at week 16, and the active groups maintained allocated treatment and dosages until week 24. After week 24, all patients received 10 mg. Dose reduction to 5 mg for safety concerns was allowed.

Study Type

Interventional

Enrollment (Actual)

142

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Japan
    • Aichi
      • Anjo-shi, Aichi, Japan
      • Nagoya-shi, Aichi, Japan
      • Toyokawa-shi, Aichi, Japan
    • Chiba
      • Chiba-shi, Chiba, Japan
    • Fukui
      • Fukui-shi, Fukui, Japan
      • Yoshida-gun, Fukui, Japan
    • Fukuoka
      • Fukuoka-shi, Fukuoka, Japan
      • Kitakyushu-shi, Fukuoka, Japan
      • Omuta-shi, Fukuoka, Japan
    • Gifu
      • Gifu-shi, Gifu, Japan
      • Mizunami-shi, Gifu, Japan
    • Gunma
      • Fujioka-shi, Gunma, Japan
      • Maebashi-shi, Gunma, Japan
    • Hiroshima
      • Kure-shi, Hiroshima, Japan
      • Miyoshi-shi, Hiroshima, Japan
      • Otake-shi, Hiroshima, Japan
    • Hokkaido
      • Obihiro-shi, Hokkaido, Japan
      • Sapporo-shi, Hokkaido, Japan
    • Hyogo
      • Himeji-shi, Hyogo, Japan
      • Kobe-shi, Hyogo, Japan
      • Yabu-shi, Hyogo, Japan
    • Ibaraki
      • Bando-shi, Ibaraki, Japan
      • Hitachi-shi, Ibaraki, Japan
    • Ishikawa
      • Kahoku-shi, Ishikawa, Japan
    • Iwate
      • Morioka-shi, Iwate, Japan
    • Kanagawa
      • Fujisawa-shi, Kanagawa, Japan
    • Kochi
      • Kochi-shi, Kochi, Japan
    • Kumamoto
      • Koshi-shi, Kumamoto, Japan
      • Kumamoto-shi, Kumamoto, Japan
    • Kyoto
      • Kyoto-shi, Kyoto, Japan
      • Uji-shi, Kyoto, Japan
    • Miyagi
      • Sendai-shi, Miyagi, Japan
    • Miyazaki
      • Higashimorokata-gun, Miyazaki, Japan
    • Nagano
      • Ina-shi, Nagano, Japan
      • Kitaazumi-gun, Nagano, Japan
      • Matsumoto-shi, Nagano, Japan
    • Nagasaki
      • Nishisonogi-gun, Nagasaki, Japan
    • Niigata
      • Nagaoka-shi, Niigata, Japan
      • Sanjo-shi, Niigata, Japan
      • Tsubame-shi, Niigata, Japan
    • Oita
      • Yufu-shi, Oita, Japan
    • Osaka
      • Osaka-shi, Osaka, Japan
      • Sakai-shi, Osaka, Japan
      • Sennan-shi, Osaka, Japan
      • Suita-shi, Osaka, Japan
    • Saitama
      • Ageo-shi, Saitama, Japan
      • Kasukabe-shi, Saitama, Japan
      • Saitama-shi, Saitama, Japan
    • Shizuoka
      • Fuji-shi, Shizuoka, Japan
      • Hamamatsu-shi, Shizuoka, Japan
      • Shizuoka-shi, Shizuoka, Japan
    • Tokyo
      • Koto-ku, Tokyo, Japan
      • Ota-ku, Tokyo, Japan
      • Setagaya-ku, Tokyo, Japan
      • Shinjuku-ku, Tokyo, Japan
      • Suginami-ku, Tokyo, Japan

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria

  1. Patients diagnosed as probable dementia with Lewy bodies (DLB) according to the consensus diagnostic criteria for DLB
  2. Patients having caregivers throughout the study who submited written consent to cooperate with this study, who routinely stayed with patients 3 days or more a week (at least 4 hours a day), provided patients' information necessary for this study, assisted treatment compliance, and escorted the patients on required visits to study institution
  3. Clinical Dementia Rating (CDR) score ≥ 0.5
  4. Mini-Mental State Examination (MMSE) score of 10 to 26

Exclusion Criteria

  1. Patients diagnosed with Parkinson's disease with dementia (PDD)
  2. Patients who received anti-dementia drug therapy at the same institution
  3. Patients who received anti-dementia drug therapy within 12 weeks before start of Screening
  4. Patients with a complication of serious neuropsychiatric disease(s) such as stroke, brain tumor, schizophrenia, epilepsy, normal pressure hydrocephalus, mental retardation, brain trauma with unconsciousness, or a history of brain surgery causing unrecovered deficiency
  5. Patients with severe extrapyramidal disorders (Hoehn and Hahr staging score ≥ IV)
  6. Patients whose systolic blood pressure was less than 90 mmHg or pulse rate was less than 50 bpm at screening

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo - Confirmatory Phase
Participants received donepezil matched placebo tablets orally, once daily for 12 weeks in the confirmatory phase.
Drug: Donepezil matched placebo
Experimental: Donepezil 5 mg - Confirmatory Phase
Participants received donepezil tablets orally, once daily for 12 weeks. Treatment began with 3 mg for 2 weeks, and then the dose was increased to 5 mg for 10 weeks in the confirmatory phase.
Drug: Donepezil 5 mg
Donepezil tablets orally, once daily, uptitrated from 3 to 5 mg
Other Names:
  • E2020
Experimental: Donepezil 10 mg - Confirmatory Phase
Participants received donepezil tablets orally, once daily for 12 weeks. Treatment began with 3 mg for 2 weeks, and then the dose was increased to 5 mg for 4 weeks. Thereafter, the dose was increased to 10 mg for 6 weeks in the confirmatory phase.
Drug: Donepezil 10 mg
Donepezil tablets orally, once daily, uptitrated from 3 to 5 mg and then the dose was increased to 10 mg
Other Names:
  • E2020
Experimental: Placebo to Donepezil (5 +10 mg) - Extension Phase
Participants previously receiving donepezil matched placebo up to Week 12 in the Confirmatory Phase, continued placebo until Week 16 (at the beginning of the Extension Phase). Participants received 3 mg of donepezil, and the dose was then increased to 5 mg at Week 18 and to 10 mg at Week 24. After Week 24, dose reduction to 5 mg was allowed if continuation at 10 mg caused any safety concerns.
Drug: Donepezil 10 mg
Donepezil tablets orally, once daily, uptitrated from 3 to 5 mg and then the dose was increased to 10 mg
Other Names:
  • E2020
Experimental: Donepezil (5 +10 mg) - Extension Phase
Participants previously receiving donepezil (5 mg or 10 mg) up to Week 12 in the Confirmatory Phase, maintained allocated treatment and dosages until Week 24. In the 5 mg group of the Confirmatory Phase, the dose was increased to 10 mg at Week 24. After Week 24, dose reduction to 5 mg was allowed if continuation at 10 mg caused any safety concerns.
Drug: Donepezil 10 mg
Donepezil tablets orally, once daily, uptitrated from 3 to 5 mg and then the dose was increased to 10 mg
Other Names:
  • E2020

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change From Baseline in Mini-Mental State Examination (MMSE) Score
Time Frame: Week 12 for Confirmatory Phase
The MMSE was used to measure cognitive impairment. The MMSE can evaluate overall cognitive function, and is widely used for the assessment of cognitive impairment in dementia patients. The questionnaire consists of 11 items, and each item aims to evaluate different cognitive domains such as orientation, memory, attention, and construction. The score ranged from 0 to 30, with a higher score indicating better function. A positive change score indicated improvement from baseline. Data are presented as change from baseline in mean MMSE +/- standard deviation.
Week 12 for Confirmatory Phase
Change From Baseline in Neuropsychiatric Inventory (NPI-2) Score
Time Frame: Week 12 for Confirmatory Phase
The NPI was a questionnaire that quantified psychiatric symptoms and behavioral disorders in dementia. A total of 12 items (the original NPI-10 consisting of 10 behavioral domains: delusions, hallucinations, agitation/aggression, dysphoria, anxiety, euphoria, apathy, disinhibition, irritability/lability, and aberrant motor behavior, supplemented by 2 dementia with Lewy bodies (DLB)-relevant domains of sleep, and cognitive fluctuation [reported as cognitive fluctuation inventory]) were assessed. The score of each item was calculated as frequency (scale: 1=occasionally to 4=very frequently) x Severity (scale: 1=Mild to 3=Severe). The NPI-2 was calculated as the sum of the scores for hallucinations and cognitive fluctuation, to yield a possible total score of 0 to 24. Lower score=less severity. A negative change score from baseline indicated improvement. Data are presented as change from baseline in mean NPI-2 +/- standard deviation.
Week 12 for Confirmatory Phase

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Eisai Co., Ltd.

Investigators

  • Study Director: Masaki Nakagawa, Neuroscience Clinical Development Section. JAC PCU

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 2011

Primary Completion (Actual)

March 1, 2013

Study Completion (Actual)

April 1, 2013

Study Registration Dates

First Submitted

January 14, 2011

First Submitted That Met QC Criteria

January 14, 2011

First Posted (Estimated)

January 17, 2011

Study Record Updates

Last Update Posted (Actual)

June 29, 2023

Last Update Submitted That Met QC Criteria

June 16, 2023

Last Verified

December 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • E2020-J081-341

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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