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
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Studientyp
Studientyp
Einschreibung (Tatsächlich)
Einschreibung
Phase
Phase
- Phase 3
Kontakte und Standorte
Studienorte
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Nanchang, China
- The Second Affiliated Hospital to Nanchang University
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Nanjing Jiangsu, China
- Nanjing Brain Hospital
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Tianjin, China
- Tianjin People's Hospital
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Tianjin, China
- Tianjin Anding Hospital
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Beijing
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Beijing, Beijing, China
- Chinese PLA General Hospital
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Beijing, Beijing, China
- Beijing Hospital
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Beijing, Beijing, China
- Xuanwu Hospital Capital Medical University
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Beijing, Beijing, China
- Beijing Huilongguan Hospital
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Beijing, Beijing, China
- Beijing Anding Hospital
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Chongqing
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Chongqing, Chongqing, China
- The First Affiliated Hospital of Chongqing Medical University
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Chongqing, Chongqing, China
- The Second Affiliated Hospital of Chongqing Medical University
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Guangdong
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Guangzhou, Guangdong, China
- Guangzhou First People's Hospital
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Guangzhou, Guangdong, China
- Guangzhou Brain Hospital
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Guangxi
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Nanning, Guangxi, China
- The People's Hospital of Guangxi Zhuang Autonomous Region
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Hubei
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Wuhan, Hubei, China
- Tongji Hospital, Tongji Medical College of HUST
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Wuhan, Hubei, China
- Union Hospital, Tongji Medical College Huazhong University of Science and Technology
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Hunan
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Changsha, Hunan, China
- The Third XIANGYA Hospital of Central South University
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Yueyang, Hunan, China
- The First People's Hospital of Yueyang
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Shandong
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Jinan, Shandong, China
- Qilu Hospital of Shandong University
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Jinan, Shandong, China
- The Second Hospital of Shandong University
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Qingdao, Shandong, China
- The Affiliated Hospital of Medical College Qingdao University
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Shanghai
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Shanghai, Shanghai, China
- Shanghai Ruijin Hospital
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Shanghai, Shanghai, China
- Shanghai Changzheng Hospital
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Shanghai, Shanghai, China
- Renji Hospital, Shanghai Jiaotong University School of Medicine
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Shanghai, Shanghai, China
- Hushan Hospital affliated to Fudan University
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Shanxi
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Xi'An, Shanxi, China
- Tangdu Hospital, The Fourth Military Medical University
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Xi'An, Shanxi, China
- Xi'an Mental Health Center
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Xi'An, Shanxi, China
- Xijing Hospital, The Fourth Military Medical University
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Sichuan
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Chengdu, Sichuan, China
- West China Hospital, Sichuan University
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Chengdu, Sichuan, China
- Sichuan Provincial People's Hospital
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Yunnan
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Kunming, Yunnan, China
- First Affiliated Hospital of Kunming Medical University
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Zhejiang
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Hangzhou, Zhejiang, China
- The Second Affiliated Hospital of Zhejiang University School of Medicine
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
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
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Vervierfachen
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
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Experimental: 1
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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.
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Placebo-Komparator: 2
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Placebo matched to donepezil 5 mg or 10 mg tablets taken orally once daily for 24 weeks.
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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The change in the total Severe Impairment Battery (SIB) score at Week 24
Zeitfenster: 24 weeks
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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.
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24 weeks
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Clinician Interview-Based Impression of Severity (CIBIC)+ overall score at Week 24
Zeitfenster: 24 weeks
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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.
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24 weeks
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Studienleiter: Naoki Kubota, Neuroscience Clinical Development Section, Japan/Asia Clinical Research Product Creation Unit, Eisai Co., Ltd.
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Tatsächlich)
Primärer Abschluss
Studienabschluss (Tatsächlich)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Psychische Störungen
- Erkrankungen des Gehirns
- Erkrankungen des zentralen Nervensystems
- Erkrankungen des Nervensystems
- Neurokognitive Störungen
- Neurodegenerative Krankheiten
- Tauopathien
- Demenz
- Alzheimer Erkrankung
- Physiologische Wirkungen von Arzneimitteln
- Neurotransmitter-Agenten
- Molekulare Mechanismen der pharmakologischen Wirkung
- Cholinerge Wirkstoffe
- Enzym-Inhibitoren
- Nootropische Wirkstoffe
- Cholinesterase-Hemmer
- Donepezil
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- E2020-C086-339
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