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
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 3
Kontakter og lokationer
Studiesteder
-
-
-
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
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
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
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Firedobbelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: 1
|
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
|
Placebo matched to donepezil 5 mg or 10 mg tablets taken orally once daily for 24 weeks.
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
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
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
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
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Studieleder: Naoki Kubota, Neuroscience Clinical Development Section, Japan/Asia Clinical Research Product Creation Unit, Eisai Co., Ltd.
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
- Psykiske lidelser
- Hjernesygdomme
- Sygdomme i centralnervesystemet
- Sygdomme i nervesystemet
- Neurokognitive lidelser
- Neurodegenerative sygdomme
- Tauopatier
- Demens
- Alzheimers sygdom
- Lægemidlers fysiologiske virkninger
- Neurotransmittermidler
- Molekylære mekanismer for farmakologisk virkning
- Kolinerge midler
- Enzymhæmmere
- Nootropiske midler
- Cholinesterasehæmmere
- Donepezil
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- E2020-C086-339
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .