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A 24-weeks, Multi-center, Randomized, Double-blind, Placebo Controlled Study to Evaluate the Efficacy and Safety of Donepezil Hydrochloride in Chinese Subjects With Severe Alzheimer's Disease

7. mars 2017 oppdatert av: Eisai Limited
The objective is to demonstrate that donepezil hydrochloride 10 mg/day has superior efficacy compared with placebo in cognitive function in Chinese subjects with severe Alzheimer's Disease.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Faktiske)

260

Fase

  • Fase 3

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Kina
      • Nanchang, Kina
        • The Second Affiliated Hospital to Nanchang University
      • Nanjing Jiangsu, Kina
        • Nanjing Brain Hospital
      • Tianjin, Kina
        • Tianjin People's Hospital
      • Tianjin, Kina
        • Tianjin Anding Hospital
    • Beijing
      • Beijing, Beijing, Kina
        • Chinese PLA General Hospital
      • Beijing, Beijing, Kina
        • Beijing Hospital
      • Beijing, Beijing, Kina
        • Xuanwu Hospital Capital Medical University
      • Beijing, Beijing, Kina
        • Beijing Huilongguan Hospital
      • Beijing, Beijing, Kina
        • Beijing Anding Hospital
    • Chongqing
      • Chongqing, Chongqing, Kina
        • The First Affiliated Hospital of Chongqing Medical University
      • Chongqing, Chongqing, Kina
        • The Second Affiliated Hospital of Chongqing Medical University
    • Guangdong
      • Guangzhou, Guangdong, Kina
        • Guangzhou First People's Hospital
      • Guangzhou, Guangdong, Kina
        • Guangzhou Brain Hospital
    • Guangxi
      • Nanning, Guangxi, Kina
        • The People's Hospital of Guangxi Zhuang Autonomous Region
    • Hubei
      • Wuhan, Hubei, Kina
        • Tongji Hospital, Tongji Medical College of HUST
      • Wuhan, Hubei, Kina
        • Union Hospital, Tongji Medical College Huazhong University of Science and Technology
    • Hunan
      • Changsha, Hunan, Kina
        • The Third XIANGYA Hospital of Central South University
      • Yueyang, Hunan, Kina
        • The First People's Hospital of Yueyang
    • Shandong
      • Jinan, Shandong, Kina
        • Qilu Hospital of Shandong University
      • Jinan, Shandong, Kina
        • The Second Hospital of Shandong University
      • Qingdao, Shandong, Kina
        • The Affiliated Hospital of Medical College Qingdao University
    • Shanghai
      • Shanghai, Shanghai, Kina
        • Shanghai Ruijin Hospital
      • Shanghai, Shanghai, Kina
        • Shanghai Changzheng Hospital
      • Shanghai, Shanghai, Kina
        • Renji Hospital, Shanghai Jiaotong University School of Medicine
      • Shanghai, Shanghai, Kina
        • Hushan Hospital affliated to Fudan University
    • Shanxi
      • Xi'An, Shanxi, Kina
        • Tangdu Hospital, The Fourth Military Medical University
      • Xi'An, Shanxi, Kina
        • Xi'an Mental Health Center
      • Xi'An, Shanxi, Kina
        • Xijing Hospital, The Fourth Military Medical University
    • Sichuan
      • Chengdu, Sichuan, Kina
        • West China Hospital, Sichuan University
      • Chengdu, Sichuan, Kina
        • Sichuan Provincial People's Hospital
    • Yunnan
      • Kunming, Yunnan, Kina
        • First Affiliated Hospital of Kunming Medical University
    • Zhejiang
      • Hangzhou, Zhejiang, Kina
        • The Second Affiliated Hospital of Zhejiang University School of Medicine

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

50 år til 90 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria

  • Written informed consent (IC) will be obtained from the subject (if possible) or from the subject's legal guardian or legal representative prior to beginning screening activities.
  • Subject age range: male and female subjects 50 to 90 years of age, inclusive
  • Diagnosis: diagnostic evidence of probable Alzheimer's Disease (AD) consistent with Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) and National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) criteria
  • MMSE 1 to 12 inclusive, at both Screening and Baseline
  • SIB less than or equal to 90 and greater than or equal to 10 at both Screening and Baseline
  • Comorbid medical conditions must be clinically stable prior to Baseline, unless otherwise specified.

Exclusion Criteria

  • Subjects with a known history of disorders that affect cognition or the ability to assess cognition, but are distinguishable from AD
  • Evidence of focal disease to account for dementia on any cranial image MRI or CT.
  • Subjects with dementia complicated by other organic disease or AD with delirium according to DSM-IV criteria
  • Subjects who cannot swallow or who have difficulty swallowing whole tablets, as tablets should not be broken or crushed
  • Illiteracy prior to AD
  • Subjects who are unwilling or unable to fulfill the requirements of the study
  • Treatment with another cholinesterase inhibitor and/or memantine in the 3 months prior to Screening
  • Subjects with a poor response (tolerability) to prior exposure to donepezil

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Firemannsrom

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: 1
Legemiddel: E2020
In titration period, donepezil 5-mg tablet will be taken orally once daily for 6 weeks, following donepezil 10 mg tablets taken orally once daily for 18 weeks in the maintenance period.
Placebo komparator: 2
Legemiddel: Placebo
Placebo matched to donepezil 5 mg or 10 mg tablets taken orally once daily for 24 weeks.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
The change in the total Severe Impairment Battery (SIB) score at Week 24
Tidsramme: 24 weeks
All statistical tests will be conducted at the 0.05 level of significance (two-tailed). A positive outcome will be declared if for the primary efficacy endpoint as measured by the Severe Impairment Battery (SIB), the change from Baseline to Week 24 in the total SIB score last observation carried forward (LOCF) demonstrates superiority for donepezil 10 mg, compared with placebo.
24 weeks

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Clinician Interview-Based Impression of Severity (CIBIC)+ overall score at Week 24
Tidsramme: 24 weeks
An ANCOVA with embedded Cochran-Mantel-Haenszel (CMH) test will be used with the CIBIC+ and center in the model. Overall change from Baseline in scores at Week 24 (LOCF) will be analyzed with the same model as the SIB.
24 weeks

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Eisai Limited

Etterforskere

  • Studieleder: Naoki Kubota, Neuroscience Clinical Development Section, Japan/Asia Clinical Research Product Creation Unit, Eisai Co., Ltd.

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. september 2011

Primær fullføring (Faktiske)

1. juli 2014

Studiet fullført (Faktiske)

1. september 2014

Datoer for studieregistrering

Først innsendt

26. juli 2011

Først innsendt som oppfylte QC-kriteriene

26. juli 2011

Først lagt ut (Anslag)

27. juli 2011

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

8. mars 2017

Siste oppdatering sendt inn som oppfylte QC-kriteriene

7. mars 2017

Sist bekreftet

1. mars 2017

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • E2020-C086-339

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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