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A 24-Month Study to Evaluate the Efficacy and Safety of Elenbecestat (E2609) in Participants With Early Alzheimer's Disease (MissionAD1)

Primary Purpose

Alzheimer's Disease

Status
Terminated
Phase
Phase 3
Locations
International
Study Type
Interventional
Intervention
Elenbecestat
Placebo
Sponsored by
Eisai Co., Ltd.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Alzheimer's Disease focused on measuring Elenbecestat, E2609, Alzheimer's Disease, Early Alzheimer's Disease, Prodromal Alzheimer's Disease, Dementia, Dementia, Alzheimer's type, Mild Cognitive Impairment, MissionAD1

Eligibility Criteria

50 Years - 85 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

Core Study

  • Mild cognitive impairment due to Alzheimer's disease (AD) or mild AD dementia including

    1. Mini Mental State Examination score equal to or greater than 24
    2. Clinical Dementia Rating (CDR) global score of 0.5
    3. CDR Memory Box score of 0.5 or greater
  • Impaired episodic memory confirmed by a list learning task
  • Positive biomarker for brain amyloid pathology as indicated by either amyloid positron emission tomography or cerebrospinal fluid AD assessment or both

Extension Phase

• Participants who complete the Core Study

Exclusion Criteria:

Core Study

  • Females who are breastfeeding or pregnant at Screening or Baseline. Females of child-bearing potential must use a highly effective method of contraception throughout the entire study period and for 28 days after study drug discontinuation
  • Any condition that may be contributing to cognitive impairment above and beyond that caused by the participant's AD
  • Participants with a history of seizures within 5 years of Screening
  • History of transient ischemic attacks or stroke within 12 months of Screening
  • Psychiatric diagnosis or symptoms (example, hallucinations, major depression, delusions etc.)
  • Suicidal ideation or any suicidal behavior within 6 months before Screening or has been hospitalized or treated for suicidal behavior in the past 5 years
  • Have any contraindications to magnetic resonance imaging (MRI) scanning or

    1. Have lesions that could indicate a dementia diagnosis other than AD on brain MRI
    2. Exhibit other significant pathological findings on brain MRI.
  • Participants who have a history of moderate to severe hepatic impairment (example, Child-Pugh Class B or C)
  • Results of laboratory tests conducted during Screening that are outside the following limits:

    1. Absolute lymphocyte count below the lower limit of normal (LLN)
    2. Thyroid stimulating hormone above normal range
    3. Abnormally low Vitamin B12 levels
  • Participants at increased risk of infection
  • Have received any live vaccine/live attenuated vaccine in the 3 months before randomization
  • Any chronic inflammatory disease that is not adequately controlled or that requires systemic immunosuppressive or immunomodulatory therapy
  • Any other clinically significant abnormalities
  • Severe visual or hearing impairment
  • A prolonged corrected QT (QTc) interval (QT interval with Fridericia's correction [QTcF] greater than 450 milliseconds [ms])
  • Malignant neoplasms within 5 years of Screening
  • Known or suspected history of drug or alcohol abuse
  • Taking prohibited medications, which must be reviewed with the Investigator
  • Have participated in a recent clinical study

Note: Other protocol-defined Inclusion/Exclusion Criteria may apply.

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  • Eisai Trial Site 1
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Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Placebo Comparator

Experimental

Arm Label

Core Study: Elenbecestat 50 mg

Core Study: Placebo

Open-label Extension Phase: Elenbecestat 50 mg

Arm Description

Participants will receive one 50 milligram (mg) elenbecestat tablet, orally, once a day in the morning. The core study will be double blinded.

Participants will receive one matching placebo tablet, orally, once a day in the morning. The core study will be double blinded.

Participants completing the core study will receive one 50 mg elenbecestat tablet, orally, once a day in the morning.

Outcomes

Primary Outcome Measures

Core Phase: Change From Baseline up to Month 24 in the Clinical Dementia Rating-sum of Boxes (CDR-SB) Score
The clinical dementia rating (CDR) scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The CDR-SB is a sum of the individual domain scores and ranges from 0 to 18. Higher score indicates more impairment.
Extension Phase: Number of Participants Reporting One or More Treatment-emergent Adverse Events (TEAEs)
A TEAE is defined as an adverse event that emerged during treatment or within 28 days following the last dose of study drug, having been absent at pretreatment (Baseline) or reemerged during treatment, having been present at pretreatment (Baseline) but stopped before treatment, or worsened in severity during treatment relative to the pretreatment state, when the adverse event was continuous. Number of participants with TEAEs (serious and non-serious adverse events) were reported based on their safety assessments of laboratory tests, suicidal ideation and suicidal behavior, drug abuse potential, physical examination, neurological examination, regular measurement of vital signs, magnetic resonance imaging and electrocardiogram parameter values.

Secondary Outcome Measures

Core Phase: Change From Baseline up to Month 24 in Alzheimer's Disease Composite Score (ADCOMS)
ADCOMS is a weighted linear combination of 12 items from three existing clinical scales: the Alzheimer's Disease Assessment Scale-cognitive subscale (ADAS-cog), the Mini Mental State Examination (MMSE), and the CDR. Four items are from the ADAS-cog (A4 [Delayed Word Recall], A7 [Orientation], A8 [Word Recognition], A11 [Word Finding]); 2 items are from the MMSE (M1 [Orientation Time], M7 [Drawing]); 6 items are from the CDR (C1 [Personal Care], C2 [Community Affairs], C3 [Home and Hobbies], C4 [Judgment and Problem Solving], C5 [Memory], C6 [Orientation]). Composite score is derived from the variables from the 12 items, and ranges from 0 to 1.97, where higher score indicates worse performance.
Core Phase: Change From Baseline up to Month 24 in Amyloid Positron Emission Tomography (PET) Standardized Uptake Value Ratio (SUVR)
Amyloid PET scan assesses cerebral amyloid load using 3 tracers (florbetapir, florbetaben and flutemetamol) which is standardized into centiloids for evaluation of AD. Centiloid values on centiloid scale is based on mean composite SUVR in cingulate, frontal, parietal and temporal cortexes using whole cerebellum as reference region. SUVR is ratio of tracer uptake in each of cingulate, frontal, parietal and temporal cortexes relative to cerebellum. The centiloid scale anchor points are 0 and 100, where 0 represents a high-certainty amyloid negative scan and 100 represents the amount of global amyloid deposition found in a typical AD scans.
Core Phase: Change From Baseline up to Month 24 in the CDR-SB Score for Participants Enriched by Baseline Amyloid PET SUVR Between 1.2 and 1.6
The CDR scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The CDR-SB is a sum of the individual domain scores and ranges from 0 to 18. Higher score indicates more impairment. Amyloid PET scans allow in vivo assessment of cerebral amyloid load. SUVR indicates the ratio of tracer uptake in the frontal cortex relative to the cerebellum or the ratio of tracer uptake in the whole brain relative to the cerebellum.
Core Phase: Change From Baseline up to Month 24 in the ADCOMS for Participants Enriched by Baseline Amyloid PET SUVR Between 1.2 and 1.6
ADCOMS is a weighted linear combination of 12 items from three existing clinical scales: the ADAS-cog, the MMSE, and the CDR. Four items are from the ADAS-cog (A4 [Delayed Word Recall], A7 [Orientation], A8 [Word Recognition], A11 [Word Finding]); 2 items are from the MMSE (M1 [Orientation Time], M7 [Drawing]); 6 items are from the CDR (C1 [Personal Care], C2 [Community Affairs], C3 [Home and Hobbies], C4 [Judgment and Problem Solving], C5 [Memory], C6 [Orientation]). Composite score is derived from the variables from the 12 items, and ranges from 0 to 1.97, where higher score indicates worse performance. Amyloid PET scans allow in vivo assessment of cerebral amyloid load. SUVR indicates the ratio of tracer uptake in the frontal cortex relative to the cerebellum or the ratio of tracer uptake in the whole brain relative to the cerebellum.
Core Phase: Change Per Year (Mean Slope) in CDR-SB Score up to Month 24
The CDR scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The CDR-SB is a sum of the individual domain scores and ranges from 0 to 18. Higher score indicates more impairment. In this outcome measure, change per year (mean slope) in CDR-SB score was calculated up to month 24, where higher change indicated more impairment and lower change indicated less impairment.
Core Phase: Time to Worsening of CDR Score up to Month 24
The CDR scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The global CDR score is computed via an algorithm and ranges from 0 to 3. Higher score indicates more impairment. In this outcome measure, time (in months) to worsening of CDR score (that is, an increase from baseline by at least 0.5 points on the global CDR scale on 2 consecutive scheduled visits) up to month 24 was calculated.
Core Phase: Time to Conversion to Dementia for Participants Who Were Not Clinically Staged as Having Dementia at the Core Phase Baseline up to Month 24
Time (in months) to conversion to dementia for participants who were not clinically staged as having dementia at the core phase baseline (that is time from randomization to conversion to dementia in clinical diagnosis).
Core Phase: Change From Baseline up to Month 24 in the Alzheimer's Disease Assessment Scale-cognition14 (ADAS-Cog14) Score
ADAS-cog14 is a psychometric instrument that evaluates 14-items (Immediate Word-recall [0-10], Commands [0-5], Constructional Praxis [0-5], Delayed Word-recall [0-10], Naming Objects/Fingers [0-5], Ideational Praxis [0-5], Orientation[0-8], Word Recognition [0-12], Remembering Test Instructions [0-5], Comprehension[0-5], Word Finding Difficulty [0-5], Spoken Language Ability [0-5], Executive Function [0-5], and Number Cancellation [0-5] test). It is considered to be more sensitive for less impaired populations such as MCI/Prodromal and mild AD participants. The total score ranges from 0 to 90. Higher score indicates more impairment.
Core Phase: Change From Baseline up to Month 24 in the MMSE Score
The MMSE is a cognitive instrument commonly used for screening purposes, for staging of disease severity and is often measured longitudinally in AD clinical studies to follow disease progression and treatment effects. MMSE is composed of 30 questions grouped into domains (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Naming [0-2], Repetition [0-1], Comprehension [0-3], Reading [0-1], Writing [0-1], Drawing [0-1]). For each of the MMSE domains, six items are computed (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Language: Naming, Repetition, Comprehension, Reading, Writing, and Drawing [0-9]). The MMSE Total Score is the sum of the six domains and ranges from 0 to 30. If any domain score was missing then the total score was missing. Higher score indicates better function.
Core Phase: Change From Baseline up to Month 24 in the Functional Assessment Questionnaire (FAQ) Score
FAQ scores 10 items & measures activities of daily living (paying bills/balancing checkbook, assembling tax records, shopping alone for clothes or groceries, playing game of skill such as bridge or chess/working on a hobby, heating water & turning off stove, preparing balanced meal, keeping track of current events, paying attention & understanding television program, remembering appointments, driving or traveling out of neighborhood). Each item is rated as follows: 0=Normal, 1=Has difficulty but does by self, 2=Requires assistance, 3=Dependent, or 8=Not Applicable. The total score is the sum of all 10 items & ranges from 0 to 30. Higher score indicates more impairment. If any activity was missed, then the total score was missed. Activities rated as "Not Applicable" were not used in the computation of the total score. To account for "Not Applicable" activity, the total score was weighted as:Total Score=Total Score*30/(30 minus 3 times the number of activities marked"Not Applicable").
Core Phase: Change From Baseline up to Month 24 in the ADAS-cog14 Word List (Immediate Recall and Delayed Recall) Score
The ADAS-cog14 Word List is a summation of two items: "Immediate Word-recall" and "Delayed Word-recall". Immediate Word-recall test: Participants are asked to recall words and the number of "No" responses for each trial (total 3 trials) are summed. Subscore: sum of scores from 3 trials, divided by 3. Score ranges from 0 to 10. Delayed Word-recall: Participants used to recall words after a delay and the number of "No" responses are summed. Score ranges from 0 to 10. The Total Score ranges from 0 to 20. Higher score indicates more impairment.
Core Phase: Change From Baseline up to Month 24 in the Alzheimer's Disease Assessment Scale-cognition11 (ADAS-Cog11) Score
ADAS-cog11 is a psychometric instrument that evaluates 11-items (Immediate Word-recall [0 to 10], Commands [0-5], Constructional Praxis [0-5], Naming Objects/Fingers [0-5], Ideational Praxis [0-5], Orientation[0-8], Word Recognition [0-12], Remembering Test Instructions [0-5], Comprehension[0-5], Word Finding Difficulty [0-5], Spoken Language Ability [0-5] test) and is considered more sensitive for less impaired populations such as MCI/Prodromal and mild AD participants. The Total score ranges from 0 to 70. Higher score indicates more impairment.
Core Phase: Change From Last Dose in the CDR-SB Score
The CDR scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The CDR-SB is a sum of the individual domain scores and ranges from 0 to 18. Higher score indicates more impairment.
Core Phase: Change From Last Dose in the ADCOMS
ADCOMS is a weighted linear combination of 12 items from three existing clinical scales: the ADAS-cog, the MMSE, and the CDR. Four items are from the ADAS-cog (A4 [Delayed Word Recall], A7 [Orientation], A8 [Word Recognition], A11 [Word Finding]); 2 items are from the MMSE (M1 [Orientation Time], M7 [Drawing]); 6 items are from the CDR (C1 [Personal Care], C2 [Community Affairs], C3 [Home and Hobbies], C4 [Judgment and Problem Solving], C5 [Memory], C6 [Orientation]). Composite score is derived from the variables from the 12 items, and ranges from 0 to 1.97, where higher score indicates worse performance.
Core Phase: Change From Last Dose in the ADAS-cog11 Score
ADAS-cog11 is a psychometric instrument that evaluates 11-items (Immediate Word-recall [0 to 10], Commands [0-5], Constructional Praxis [0-5], Naming Objects/Fingers [0-5], Ideational Praxis [0-5], Orientation[0-8], Word Recognition [0-12], Remembering Test Instructions [0-5], Comprehension[0-5], Word Finding Difficulty [0-5], Spoken Language Ability [0-5] test) and is considered more sensitive for less impaired populations such as MCI/Prodromal and mild AD participants. The Total score ranges from 0 to 70. Higher score indicates more impairment.
Core Phase: Change From Last Dose in the ADAS-cog14 Score
ADAS-cog14 is a psychometric instrument that evaluates 14-items (Immediate Word-recall [0 to 10], Commands [0-5], Constructional Praxis [0-5], Delayed Word-recall [0-10], Naming Objects/Fingers [0-5], Ideational Praxis [0-5], Orientation[0-8], Word Recognition [0-12], Remembering Test Instructions [0-5], Comprehension[0-5], Word Finding Difficulty [0-5], Spoken Language Ability [0-5], Executive Function [0-5], and Number Cancellation [0-5] test). It is considered to be more sensitive for less impaired populations such as MCI/Prodromal and mild AD participants. The Total Score ranges from 0 to 90. Higher score indicates more impairment.
Core Phase: Change From Last Dose in the MMSE Score
The MMSE is a cognitive instrument commonly used for screening purposes, for staging of disease severity and is often measured longitudinally in AD clinical studies to follow disease progression and treatment effects. MMSE is composed of 30 questions grouped into domains (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Naming [0-2], Repetition [0-1], Comprehension [0-3], Reading [0-1], Writing [0-1], Drawing [0-1]). For each of the MMSE domains, six items are computed (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Language: Naming, Repetition, Comprehension, Reading, Writing, and Drawing [0-9]). The MMSE Total Score is the sum of the six domains and ranges from 0 to 30. If any domain score was missing then the total score was missing. Higher score indicates better function.
Core Phase: Change From Last Dose in the ADAS-cog14 Word List (Immediate Recall and Delayed Recall) Score
The ADAS-cog14 Word List is a summation of two items: "Immediate Word-recall" and "Delayed Word-recall". Immediate Word-recall test: Participants are asked to recall words and the number of "No" responses for each trial (total 3 trials) are summed. Subscore: sum of scores from 3 trials, divided by 3. Score ranges from 0 to 10. Delayed Word-recall: Participants used to recall words after a delay and the number of "No" responses are summed. Score ranges from 0 to 10. The Total Score ranges from 0 to 20. Higher score indicates more impairment.
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in CDR-SB Score
The CDR scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The CDR-SB is a sum of the individual domain scores and ranges from 0 to 18. Higher score indicates more impairment.
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in ADCOMS
ADCOMS is a weighted linear combination of 12 items from three existing clinical scales: the ADAS-cog, the MMSE, and the CDR. Four items are from the ADAS-cog (A4 [Delayed Word Recall], A7 [Orientation], A8 [Word Recognition], A11 [Word Finding]); 2 items are from the MMSE (M1 [Orientation Time], M7 [Drawing]); 6 items are from the CDR (C1 [Personal Care], C2 [Community Affairs], C3 [Home and Hobbies], C4 [Judgment and Problem Solving], C5 [Memory], C6 [Orientation]). Composite score is derived from the variables from the 12 items, and ranges from 0 to 1.97, where higher score indicates worse performance.
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in MMSE Score
The MMSE is a cognitive instrument commonly used for screening purposes, for staging of disease severity and is often measured longitudinally in AD clinical studies to follow disease progression and treatment effects. MMSE is composed of 30 questions grouped into domains (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Naming [0-2], Repetition [0-1], Comprehension [0-3], Reading [0-1], Writing [0-1], Drawing [0-1]). For each of the MMSE domains, six items are computed (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Language: Naming, Repetition, Comprehension, Reading, Writing, and Drawing [0-9]). The MMSE Total Score is the sum of the six domains and ranges from 0 to 30. If any domain score is missing then the total score is missing. Higher score indicates better function.
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in FAQ Score
FAQ scores 10 items & measures activities of daily living (paying bills/balancing checkbook, assembling tax records, shopping alone for clothes or groceries, playing game of skill such as bridge or chess/working on a hobby, heating water & turning off stove, preparing balanced meal, keeping track of current events, paying attention & understanding television program, remembering appointments, driving or traveling out of neighborhood). Each item is rated as follows: 0=Normal, 1=Has difficulty but does by self, 2=Requires assistance, 3=Dependent, or 8=Not Applicable. The total score is the sum of all 10 items & ranges from 0 to 30. Higher score indicates more impairment. If any activity was missed, then the total score was missed. Activities rated as "Not Applicable" were not used in the computation of the total score. To account for "Not Applicable" activity, the total score was weighted as:Total Score=Total Score*30/(30 minus 3 times the number of activities marked"Not Applicable").
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in ADAS-cog14 Score
ADAS-cog14 is a psychometric instrument that evaluates 14-items (Immediate Word-recall [0 to 10], Commands [0-5], Constructional Praxis [0-5], Delayed Word-recall [0-10], Naming Objects/Fingers [0-5], Ideational Praxis [0-5], Orientation[0-8], Word Recognition [0-12], Remembering Test Instructions [0-5], Comprehension[0-5], Word Finding Difficulty [0-5], Spoken Language Ability [0-5], Executive Function [0-5], and Number Cancellation [0-5] test). It is considered to be more sensitive for less impaired populations such as MCI/Prodromal and mild AD participants. The total score ranges from 0 to 90. Higher score indicates more impairment.
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in ADAS-cog14 Word List (Immediate Recall and Delayed Recall) Score
The ADAS-cog14 Word List is a summation of two items: "Immediate Word-recall" and "Delayed Word-recall". Immediate Word-recall test: Participants are asked to recall words and the number of "No" responses for each trial (total 3 trials) are summed. Subscore: sum of scores from 3 trials, divided by 3. Score ranges from 0 to 10. Delayed Word-recall: Participants used to recall words after a delay and the number of "No" responses are summed. Score ranges from 0 to 10. The Total Score ranges from 0 to 20. Higher score indicates more impairment.
Extension Phase: Time to Conversion to Dementia for Participants Who Were Not Clinically Staged as Having Dementia at the Core Phase Baseline up to Month 12 of the Extension Phase
Time (in months) to conversion to dementia for participants who were not clinically staged as having dementia at the core phase baseline (that is time from randomization to conversion to dementia in clinical diagnosis).

Full Information

First Posted
November 3, 2016
Last Updated
January 14, 2021
Sponsor
Eisai Co., Ltd.
Collaborators
Biogen
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1. Study Identification

Unique Protocol Identification Number
NCT02956486
Brief Title
A 24-Month Study to Evaluate the Efficacy and Safety of Elenbecestat (E2609) in Participants With Early Alzheimer's Disease
Acronym
MissionAD1
Official Title
A Placebo-Controlled, Double-Blind, Parallel-Group, 24 Month Study With an Open-Label Extension Phase to Evaluate the Efficacy and Safety of Elenbecestat (E2609) in Subjects With Early Alzheimer's Disease
Study Type
Interventional

2. Study Status

Record Verification Date
January 2021
Overall Recruitment Status
Terminated
Why Stopped
Due to an unfavorable risk-benefit ratio including no evidence of potential efficacy, and the adverse event profile of E2609 being worse than placebo.
Study Start Date
October 20, 2016 (Actual)
Primary Completion Date
January 15, 2020 (Actual)
Study Completion Date
January 15, 2020 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Eisai Co., Ltd.
Collaborators
Biogen

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The name of this trial is MissionAD1. This phase 3 study consists of a Core and Open Label Extension (OLE) Phase in participants with Early Alzheimer's Disease (EAD), and will be conducted to evaluate the efficacy and safety of E2609. The Core is a 24-month treatment, multicenter, double blind, placebo controlled parallel group study. The OLE is a 24-month treatment, one group study. The data for the studies E2609-G000-301 (NCT02956486, MissionAD1) and E2609-G000-302 (NCT03036280, MissionAD2) will be pooled.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Alzheimer's Disease
Keywords
Elenbecestat, E2609, Alzheimer's Disease, Early Alzheimer's Disease, Prodromal Alzheimer's Disease, Dementia, Dementia, Alzheimer's type, Mild Cognitive Impairment, MissionAD1

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
2212 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Core Study: Elenbecestat 50 mg
Arm Type
Experimental
Arm Description
Participants will receive one 50 milligram (mg) elenbecestat tablet, orally, once a day in the morning. The core study will be double blinded.
Arm Title
Core Study: Placebo
Arm Type
Placebo Comparator
Arm Description
Participants will receive one matching placebo tablet, orally, once a day in the morning. The core study will be double blinded.
Arm Title
Open-label Extension Phase: Elenbecestat 50 mg
Arm Type
Experimental
Arm Description
Participants completing the core study will receive one 50 mg elenbecestat tablet, orally, once a day in the morning.
Intervention Type
Drug
Intervention Name(s)
Elenbecestat
Other Intervention Name(s)
E2609
Intervention Description
Oral tablet.
Intervention Type
Drug
Intervention Name(s)
Placebo
Intervention Description
Oral tablet.
Primary Outcome Measure Information:
Title
Core Phase: Change From Baseline up to Month 24 in the Clinical Dementia Rating-sum of Boxes (CDR-SB) Score
Description
The clinical dementia rating (CDR) scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The CDR-SB is a sum of the individual domain scores and ranges from 0 to 18. Higher score indicates more impairment.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Extension Phase: Number of Participants Reporting One or More Treatment-emergent Adverse Events (TEAEs)
Description
A TEAE is defined as an adverse event that emerged during treatment or within 28 days following the last dose of study drug, having been absent at pretreatment (Baseline) or reemerged during treatment, having been present at pretreatment (Baseline) but stopped before treatment, or worsened in severity during treatment relative to the pretreatment state, when the adverse event was continuous. Number of participants with TEAEs (serious and non-serious adverse events) were reported based on their safety assessments of laboratory tests, suicidal ideation and suicidal behavior, drug abuse potential, physical examination, neurological examination, regular measurement of vital signs, magnetic resonance imaging and electrocardiogram parameter values.
Time Frame
From first dose of study drug up to approximately 6 months (including 1 month follow up) for the extension phase
Secondary Outcome Measure Information:
Title
Core Phase: Change From Baseline up to Month 24 in Alzheimer's Disease Composite Score (ADCOMS)
Description
ADCOMS is a weighted linear combination of 12 items from three existing clinical scales: the Alzheimer's Disease Assessment Scale-cognitive subscale (ADAS-cog), the Mini Mental State Examination (MMSE), and the CDR. Four items are from the ADAS-cog (A4 [Delayed Word Recall], A7 [Orientation], A8 [Word Recognition], A11 [Word Finding]); 2 items are from the MMSE (M1 [Orientation Time], M7 [Drawing]); 6 items are from the CDR (C1 [Personal Care], C2 [Community Affairs], C3 [Home and Hobbies], C4 [Judgment and Problem Solving], C5 [Memory], C6 [Orientation]). Composite score is derived from the variables from the 12 items, and ranges from 0 to 1.97, where higher score indicates worse performance.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Core Phase: Change From Baseline up to Month 24 in Amyloid Positron Emission Tomography (PET) Standardized Uptake Value Ratio (SUVR)
Description
Amyloid PET scan assesses cerebral amyloid load using 3 tracers (florbetapir, florbetaben and flutemetamol) which is standardized into centiloids for evaluation of AD. Centiloid values on centiloid scale is based on mean composite SUVR in cingulate, frontal, parietal and temporal cortexes using whole cerebellum as reference region. SUVR is ratio of tracer uptake in each of cingulate, frontal, parietal and temporal cortexes relative to cerebellum. The centiloid scale anchor points are 0 and 100, where 0 represents a high-certainty amyloid negative scan and 100 represents the amount of global amyloid deposition found in a typical AD scans.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Core Phase: Change From Baseline up to Month 24 in the CDR-SB Score for Participants Enriched by Baseline Amyloid PET SUVR Between 1.2 and 1.6
Description
The CDR scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The CDR-SB is a sum of the individual domain scores and ranges from 0 to 18. Higher score indicates more impairment. Amyloid PET scans allow in vivo assessment of cerebral amyloid load. SUVR indicates the ratio of tracer uptake in the frontal cortex relative to the cerebellum or the ratio of tracer uptake in the whole brain relative to the cerebellum.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Core Phase: Change From Baseline up to Month 24 in the ADCOMS for Participants Enriched by Baseline Amyloid PET SUVR Between 1.2 and 1.6
Description
ADCOMS is a weighted linear combination of 12 items from three existing clinical scales: the ADAS-cog, the MMSE, and the CDR. Four items are from the ADAS-cog (A4 [Delayed Word Recall], A7 [Orientation], A8 [Word Recognition], A11 [Word Finding]); 2 items are from the MMSE (M1 [Orientation Time], M7 [Drawing]); 6 items are from the CDR (C1 [Personal Care], C2 [Community Affairs], C3 [Home and Hobbies], C4 [Judgment and Problem Solving], C5 [Memory], C6 [Orientation]). Composite score is derived from the variables from the 12 items, and ranges from 0 to 1.97, where higher score indicates worse performance. Amyloid PET scans allow in vivo assessment of cerebral amyloid load. SUVR indicates the ratio of tracer uptake in the frontal cortex relative to the cerebellum or the ratio of tracer uptake in the whole brain relative to the cerebellum.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Core Phase: Change Per Year (Mean Slope) in CDR-SB Score up to Month 24
Description
The CDR scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The CDR-SB is a sum of the individual domain scores and ranges from 0 to 18. Higher score indicates more impairment. In this outcome measure, change per year (mean slope) in CDR-SB score was calculated up to month 24, where higher change indicated more impairment and lower change indicated less impairment.
Time Frame
Up to Month 24 of the core phase
Title
Core Phase: Time to Worsening of CDR Score up to Month 24
Description
The CDR scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The global CDR score is computed via an algorithm and ranges from 0 to 3. Higher score indicates more impairment. In this outcome measure, time (in months) to worsening of CDR score (that is, an increase from baseline by at least 0.5 points on the global CDR scale on 2 consecutive scheduled visits) up to month 24 was calculated.
Time Frame
Up to Month 24 of the core phase
Title
Core Phase: Time to Conversion to Dementia for Participants Who Were Not Clinically Staged as Having Dementia at the Core Phase Baseline up to Month 24
Description
Time (in months) to conversion to dementia for participants who were not clinically staged as having dementia at the core phase baseline (that is time from randomization to conversion to dementia in clinical diagnosis).
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Core Phase: Change From Baseline up to Month 24 in the Alzheimer's Disease Assessment Scale-cognition14 (ADAS-Cog14) Score
Description
ADAS-cog14 is a psychometric instrument that evaluates 14-items (Immediate Word-recall [0-10], Commands [0-5], Constructional Praxis [0-5], Delayed Word-recall [0-10], Naming Objects/Fingers [0-5], Ideational Praxis [0-5], Orientation[0-8], Word Recognition [0-12], Remembering Test Instructions [0-5], Comprehension[0-5], Word Finding Difficulty [0-5], Spoken Language Ability [0-5], Executive Function [0-5], and Number Cancellation [0-5] test). It is considered to be more sensitive for less impaired populations such as MCI/Prodromal and mild AD participants. The total score ranges from 0 to 90. Higher score indicates more impairment.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Core Phase: Change From Baseline up to Month 24 in the MMSE Score
Description
The MMSE is a cognitive instrument commonly used for screening purposes, for staging of disease severity and is often measured longitudinally in AD clinical studies to follow disease progression and treatment effects. MMSE is composed of 30 questions grouped into domains (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Naming [0-2], Repetition [0-1], Comprehension [0-3], Reading [0-1], Writing [0-1], Drawing [0-1]). For each of the MMSE domains, six items are computed (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Language: Naming, Repetition, Comprehension, Reading, Writing, and Drawing [0-9]). The MMSE Total Score is the sum of the six domains and ranges from 0 to 30. If any domain score was missing then the total score was missing. Higher score indicates better function.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Core Phase: Change From Baseline up to Month 24 in the Functional Assessment Questionnaire (FAQ) Score
Description
FAQ scores 10 items & measures activities of daily living (paying bills/balancing checkbook, assembling tax records, shopping alone for clothes or groceries, playing game of skill such as bridge or chess/working on a hobby, heating water & turning off stove, preparing balanced meal, keeping track of current events, paying attention & understanding television program, remembering appointments, driving or traveling out of neighborhood). Each item is rated as follows: 0=Normal, 1=Has difficulty but does by self, 2=Requires assistance, 3=Dependent, or 8=Not Applicable. The total score is the sum of all 10 items & ranges from 0 to 30. Higher score indicates more impairment. If any activity was missed, then the total score was missed. Activities rated as "Not Applicable" were not used in the computation of the total score. To account for "Not Applicable" activity, the total score was weighted as:Total Score=Total Score*30/(30 minus 3 times the number of activities marked"Not Applicable").
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Core Phase: Change From Baseline up to Month 24 in the ADAS-cog14 Word List (Immediate Recall and Delayed Recall) Score
Description
The ADAS-cog14 Word List is a summation of two items: "Immediate Word-recall" and "Delayed Word-recall". Immediate Word-recall test: Participants are asked to recall words and the number of "No" responses for each trial (total 3 trials) are summed. Subscore: sum of scores from 3 trials, divided by 3. Score ranges from 0 to 10. Delayed Word-recall: Participants used to recall words after a delay and the number of "No" responses are summed. Score ranges from 0 to 10. The Total Score ranges from 0 to 20. Higher score indicates more impairment.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Core Phase: Change From Baseline up to Month 24 in the Alzheimer's Disease Assessment Scale-cognition11 (ADAS-Cog11) Score
Description
ADAS-cog11 is a psychometric instrument that evaluates 11-items (Immediate Word-recall [0 to 10], Commands [0-5], Constructional Praxis [0-5], Naming Objects/Fingers [0-5], Ideational Praxis [0-5], Orientation[0-8], Word Recognition [0-12], Remembering Test Instructions [0-5], Comprehension[0-5], Word Finding Difficulty [0-5], Spoken Language Ability [0-5] test) and is considered more sensitive for less impaired populations such as MCI/Prodromal and mild AD participants. The Total score ranges from 0 to 70. Higher score indicates more impairment.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 24 of the core phase
Title
Core Phase: Change From Last Dose in the CDR-SB Score
Description
The CDR scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The CDR-SB is a sum of the individual domain scores and ranges from 0 to 18. Higher score indicates more impairment.
Time Frame
From last dose in the core phase (up to Month 24) up to 3 months follow up (up to Month 27)
Title
Core Phase: Change From Last Dose in the ADCOMS
Description
ADCOMS is a weighted linear combination of 12 items from three existing clinical scales: the ADAS-cog, the MMSE, and the CDR. Four items are from the ADAS-cog (A4 [Delayed Word Recall], A7 [Orientation], A8 [Word Recognition], A11 [Word Finding]); 2 items are from the MMSE (M1 [Orientation Time], M7 [Drawing]); 6 items are from the CDR (C1 [Personal Care], C2 [Community Affairs], C3 [Home and Hobbies], C4 [Judgment and Problem Solving], C5 [Memory], C6 [Orientation]). Composite score is derived from the variables from the 12 items, and ranges from 0 to 1.97, where higher score indicates worse performance.
Time Frame
From last dose in the core phase (up to Month 24) up to 3 months follow-up (up to Month 27)
Title
Core Phase: Change From Last Dose in the ADAS-cog11 Score
Description
ADAS-cog11 is a psychometric instrument that evaluates 11-items (Immediate Word-recall [0 to 10], Commands [0-5], Constructional Praxis [0-5], Naming Objects/Fingers [0-5], Ideational Praxis [0-5], Orientation[0-8], Word Recognition [0-12], Remembering Test Instructions [0-5], Comprehension[0-5], Word Finding Difficulty [0-5], Spoken Language Ability [0-5] test) and is considered more sensitive for less impaired populations such as MCI/Prodromal and mild AD participants. The Total score ranges from 0 to 70. Higher score indicates more impairment.
Time Frame
From last dose in the core phase (up to Month 24) up to 3 months follow-up (up to Month 27)
Title
Core Phase: Change From Last Dose in the ADAS-cog14 Score
Description
ADAS-cog14 is a psychometric instrument that evaluates 14-items (Immediate Word-recall [0 to 10], Commands [0-5], Constructional Praxis [0-5], Delayed Word-recall [0-10], Naming Objects/Fingers [0-5], Ideational Praxis [0-5], Orientation[0-8], Word Recognition [0-12], Remembering Test Instructions [0-5], Comprehension[0-5], Word Finding Difficulty [0-5], Spoken Language Ability [0-5], Executive Function [0-5], and Number Cancellation [0-5] test). It is considered to be more sensitive for less impaired populations such as MCI/Prodromal and mild AD participants. The Total Score ranges from 0 to 90. Higher score indicates more impairment.
Time Frame
From last dose in the core phase (up to Month 24) up to 3 months follow-up (up to Month 27)
Title
Core Phase: Change From Last Dose in the MMSE Score
Description
The MMSE is a cognitive instrument commonly used for screening purposes, for staging of disease severity and is often measured longitudinally in AD clinical studies to follow disease progression and treatment effects. MMSE is composed of 30 questions grouped into domains (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Naming [0-2], Repetition [0-1], Comprehension [0-3], Reading [0-1], Writing [0-1], Drawing [0-1]). For each of the MMSE domains, six items are computed (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Language: Naming, Repetition, Comprehension, Reading, Writing, and Drawing [0-9]). The MMSE Total Score is the sum of the six domains and ranges from 0 to 30. If any domain score was missing then the total score was missing. Higher score indicates better function.
Time Frame
From last dose in the core phase (up to Month 24) up to 3 months follow-up (up to Month 27)
Title
Core Phase: Change From Last Dose in the ADAS-cog14 Word List (Immediate Recall and Delayed Recall) Score
Description
The ADAS-cog14 Word List is a summation of two items: "Immediate Word-recall" and "Delayed Word-recall". Immediate Word-recall test: Participants are asked to recall words and the number of "No" responses for each trial (total 3 trials) are summed. Subscore: sum of scores from 3 trials, divided by 3. Score ranges from 0 to 10. Delayed Word-recall: Participants used to recall words after a delay and the number of "No" responses are summed. Score ranges from 0 to 10. The Total Score ranges from 0 to 20. Higher score indicates more impairment.
Time Frame
From last dose in the core phase (up to Month 24) up to 3 months follow-up (up to Month 27)
Title
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in CDR-SB Score
Description
The CDR scale is a clinical global rating scale that requires interviewing both the participant and an informant who knows and has contact with the participant. The CDR scale is a clinician directed assessment of both cognition and function, and is intended to capture the state and therefore the disease stage of the participant. The CDR scale assesses 6 domains of participant function (memory, orientation, judgement and problem solving, community affairs, home and hobbies and personal care) on a 5-point scale in which no impairment=0, questionable impairment=0.5, mild impairment=1, moderate impairment=2 and severe impairment=3. The CDR-SB is a sum of the individual domain scores and ranges from 0 to 18. Higher score indicates more impairment.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 12 of the extension phase
Title
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in ADCOMS
Description
ADCOMS is a weighted linear combination of 12 items from three existing clinical scales: the ADAS-cog, the MMSE, and the CDR. Four items are from the ADAS-cog (A4 [Delayed Word Recall], A7 [Orientation], A8 [Word Recognition], A11 [Word Finding]); 2 items are from the MMSE (M1 [Orientation Time], M7 [Drawing]); 6 items are from the CDR (C1 [Personal Care], C2 [Community Affairs], C3 [Home and Hobbies], C4 [Judgment and Problem Solving], C5 [Memory], C6 [Orientation]). Composite score is derived from the variables from the 12 items, and ranges from 0 to 1.97, where higher score indicates worse performance.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 12 of the extension phase
Title
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in MMSE Score
Description
The MMSE is a cognitive instrument commonly used for screening purposes, for staging of disease severity and is often measured longitudinally in AD clinical studies to follow disease progression and treatment effects. MMSE is composed of 30 questions grouped into domains (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Naming [0-2], Repetition [0-1], Comprehension [0-3], Reading [0-1], Writing [0-1], Drawing [0-1]). For each of the MMSE domains, six items are computed (Orientation to Time [0-5], Orientation to Place [0-5], Registration [0-3], Attention and Calculation [0-5], Recall [0-3], Language: Naming, Repetition, Comprehension, Reading, Writing, and Drawing [0-9]). The MMSE Total Score is the sum of the six domains and ranges from 0 to 30. If any domain score is missing then the total score is missing. Higher score indicates better function.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 12 of the extension phase
Title
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in FAQ Score
Description
FAQ scores 10 items & measures activities of daily living (paying bills/balancing checkbook, assembling tax records, shopping alone for clothes or groceries, playing game of skill such as bridge or chess/working on a hobby, heating water & turning off stove, preparing balanced meal, keeping track of current events, paying attention & understanding television program, remembering appointments, driving or traveling out of neighborhood). Each item is rated as follows: 0=Normal, 1=Has difficulty but does by self, 2=Requires assistance, 3=Dependent, or 8=Not Applicable. The total score is the sum of all 10 items & ranges from 0 to 30. Higher score indicates more impairment. If any activity was missed, then the total score was missed. Activities rated as "Not Applicable" were not used in the computation of the total score. To account for "Not Applicable" activity, the total score was weighted as:Total Score=Total Score*30/(30 minus 3 times the number of activities marked"Not Applicable").
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 12 of the extension phase
Title
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in ADAS-cog14 Score
Description
ADAS-cog14 is a psychometric instrument that evaluates 14-items (Immediate Word-recall [0 to 10], Commands [0-5], Constructional Praxis [0-5], Delayed Word-recall [0-10], Naming Objects/Fingers [0-5], Ideational Praxis [0-5], Orientation[0-8], Word Recognition [0-12], Remembering Test Instructions [0-5], Comprehension[0-5], Word Finding Difficulty [0-5], Spoken Language Ability [0-5], Executive Function [0-5], and Number Cancellation [0-5] test). It is considered to be more sensitive for less impaired populations such as MCI/Prodromal and mild AD participants. The total score ranges from 0 to 90. Higher score indicates more impairment.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 12 of the extension phase
Title
Extension Phase: Change From Core Phase Baseline up to Month 12 of the Extension Phase in ADAS-cog14 Word List (Immediate Recall and Delayed Recall) Score
Description
The ADAS-cog14 Word List is a summation of two items: "Immediate Word-recall" and "Delayed Word-recall". Immediate Word-recall test: Participants are asked to recall words and the number of "No" responses for each trial (total 3 trials) are summed. Subscore: sum of scores from 3 trials, divided by 3. Score ranges from 0 to 10. Delayed Word-recall: Participants used to recall words after a delay and the number of "No" responses are summed. Score ranges from 0 to 10. The Total Score ranges from 0 to 20. Higher score indicates more impairment.
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 12 of the extension phase
Title
Extension Phase: Time to Conversion to Dementia for Participants Who Were Not Clinically Staged as Having Dementia at the Core Phase Baseline up to Month 12 of the Extension Phase
Description
Time (in months) to conversion to dementia for participants who were not clinically staged as having dementia at the core phase baseline (that is time from randomization to conversion to dementia in clinical diagnosis).
Time Frame
Baseline (Day 1: before first dose in the core phase) up to Month 12 of the extension phase

10. Eligibility

Sex
All
Minimum Age & Unit of Time
50 Years
Maximum Age & Unit of Time
85 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Core Study Mild cognitive impairment due to Alzheimer's disease (AD) or mild AD dementia including Mini Mental State Examination score equal to or greater than 24 Clinical Dementia Rating (CDR) global score of 0.5 CDR Memory Box score of 0.5 or greater Impaired episodic memory confirmed by a list learning task Positive biomarker for brain amyloid pathology as indicated by either amyloid positron emission tomography or cerebrospinal fluid AD assessment or both Extension Phase • Participants who complete the Core Study Exclusion Criteria: Core Study Females who are breastfeeding or pregnant at Screening or Baseline. Females of child-bearing potential must use a highly effective method of contraception throughout the entire study period and for 28 days after study drug discontinuation Any condition that may be contributing to cognitive impairment above and beyond that caused by the participant's AD Participants with a history of seizures within 5 years of Screening History of transient ischemic attacks or stroke within 12 months of Screening Psychiatric diagnosis or symptoms (example, hallucinations, major depression, delusions etc.) Suicidal ideation or any suicidal behavior within 6 months before Screening or has been hospitalized or treated for suicidal behavior in the past 5 years Have any contraindications to magnetic resonance imaging (MRI) scanning or Have lesions that could indicate a dementia diagnosis other than AD on brain MRI Exhibit other significant pathological findings on brain MRI. Participants who have a history of moderate to severe hepatic impairment (example, Child-Pugh Class B or C) Results of laboratory tests conducted during Screening that are outside the following limits: Absolute lymphocyte count below the lower limit of normal (LLN) Thyroid stimulating hormone above normal range Abnormally low Vitamin B12 levels Participants at increased risk of infection Have received any live vaccine/live attenuated vaccine in the 3 months before randomization Any chronic inflammatory disease that is not adequately controlled or that requires systemic immunosuppressive or immunomodulatory therapy Any other clinically significant abnormalities Severe visual or hearing impairment A prolonged corrected QT (QTc) interval (QT interval with Fridericia's correction [QTcF] greater than 450 milliseconds [ms]) Malignant neoplasms within 5 years of Screening Known or suspected history of drug or alcohol abuse Taking prohibited medications, which must be reviewed with the Investigator Have participated in a recent clinical study Note: Other protocol-defined Inclusion/Exclusion Criteria may apply.
Facility Information:
Facility Name
Facility #1
City
Chandler
State/Province
Arizona
ZIP/Postal Code
85226
Country
United States
Facility Name
Facility #1
City
Colton
State/Province
California
ZIP/Postal Code
92324
Country
United States
Facility Name
Facility #1
City
Costa Mesa
State/Province
California
ZIP/Postal Code
92626
Country
United States
Facility Name
Facility #1
City
Fullerton
State/Province
California
ZIP/Postal Code
92835
Country
United States
Facility Name
Facility #1
City
Imperial
State/Province
California
ZIP/Postal Code
92251
Country
United States
Facility Name
Facility #1
City
Irvine
State/Province
California
ZIP/Postal Code
92618
Country
United States
Facility Name
Facility #1
City
Lemon Grove
State/Province
California
ZIP/Postal Code
91945
Country
United States
Facility Name
Facility #1
City
Oceanside
State/Province
California
ZIP/Postal Code
92054
Country
United States
Facility Name
Facility #2
City
Oceanside
State/Province
California
ZIP/Postal Code
92054
Country
United States
Facility Name
Facility #1
City
Oxnard
State/Province
California
ZIP/Postal Code
93030
Country
United States
Facility Name
Facility #1
City
Panorama City
State/Province
California
ZIP/Postal Code
91402
Country
United States
Facility Name
Facility #1
City
San Diego
State/Province
California
ZIP/Postal Code
92123
Country
United States
Facility Name
Facility #1
City
Denver
State/Province
Colorado
ZIP/Postal Code
80218
Country
United States
Facility Name
Facility #1
City
Atlantis
State/Province
Florida
ZIP/Postal Code
33462
Country
United States
Facility Name
Facility #1
City
Aventura
State/Province
Florida
ZIP/Postal Code
33187
Country
United States
Facility Name
Facility #2
City
Aventura
State/Province
Florida
ZIP/Postal Code
33187
Country
United States
Facility Name
Facility #1
City
Boynton Beach
State/Province
Florida
ZIP/Postal Code
33437
Country
United States
Facility Name
Facility #1
City
Coral Gables
State/Province
Florida
ZIP/Postal Code
33134
Country
United States
Facility Name
Facility #2
City
Coral Gables
State/Province
Florida
ZIP/Postal Code
33134
Country
United States
Facility Name
Facility #1
City
Delray Beach
State/Province
Florida
ZIP/Postal Code
33445
Country
United States
Facility Name
Facility #1
City
Doral
State/Province
Florida
ZIP/Postal Code
33122
Country
United States
Facility Name
Facility #1
City
Hialeah
State/Province
Florida
ZIP/Postal Code
33016
Country
United States
Facility Name
Facility #2
City
Miami
State/Province
Florida
ZIP/Postal Code
33122
Country
United States
Facility Name
Facility #11
City
Miami
State/Province
Florida
ZIP/Postal Code
33125
Country
United States
Facility Name
Facility #9
City
Miami
State/Province
Florida
ZIP/Postal Code
33125
Country
United States
Facility Name
Facility #10
City
Miami
State/Province
Florida
ZIP/Postal Code
33126
Country
United States
Facility Name
Facility #4
City
Miami
State/Province
Florida
ZIP/Postal Code
33133
Country
United States
Facility Name
Facility #1
City
Miami
State/Province
Florida
ZIP/Postal Code
33137
Country
United States
Facility Name
Facility #6
City
Miami
State/Province
Florida
ZIP/Postal Code
33144
Country
United States
Facility Name
Facility #3
City
Miami
State/Province
Florida
ZIP/Postal Code
33155
Country
United States
Facility Name
Facility #7
City
Miami
State/Province
Florida
ZIP/Postal Code
33174
Country
United States
Facility Name
Facility #8
City
Miami
State/Province
Florida
ZIP/Postal Code
33176
Country
United States
Facility Name
Facility #2
City
Orlando
State/Province
Florida
ZIP/Postal Code
32801
Country
United States
Facility Name
Facility #1
City
Orlando
State/Province
Florida
ZIP/Postal Code
32806
Country
United States
Facility Name
Facility #3
City
Orlando
State/Province
Florida
ZIP/Postal Code
32807
Country
United States
Facility Name
Facility #1
City
Palm Beach Gardens
State/Province
Florida
ZIP/Postal Code
33410
Country
United States
Facility Name
Facility #1
City
Pompano Beach
State/Province
Florida
ZIP/Postal Code
33064
Country
United States
Facility Name
Facility #1
City
Port Charlotte
State/Province
Florida
ZIP/Postal Code
33952
Country
United States
Facility Name
Facility #1
City
Port Orange
State/Province
Florida
ZIP/Postal Code
32127
Country
United States
Facility Name
Facility #1
City
Spring Hill
State/Province
Florida
ZIP/Postal Code
34609
Country
United States
Facility Name
Facility #1
City
Tampa
State/Province
Florida
ZIP/Postal Code
33613
Country
United States
Facility Name
Facility #2
City
Tampa
State/Province
Florida
ZIP/Postal Code
33614
Country
United States
Facility Name
Facility #1
City
The Villages
State/Province
Florida
ZIP/Postal Code
32162
Country
United States
Facility Name
Facility #1
City
Atlanta
State/Province
Georgia
ZIP/Postal Code
30328
Country
United States
Facility Name
Facility #1
City
Columbus
State/Province
Georgia
ZIP/Postal Code
31909
Country
United States
Facility Name
Facility #1
City
Decatur
State/Province
Georgia
ZIP/Postal Code
30033
Country
United States
Facility Name
Facility #1
City
Suwanee
State/Province
Georgia
ZIP/Postal Code
30024
Country
United States
Facility Name
Facility #1
City
Meridian
State/Province
Idaho
ZIP/Postal Code
83642
Country
United States
Facility Name
Facility #1
City
Northbrook
State/Province
Illinois
ZIP/Postal Code
60062
Country
United States
Facility Name
Facility #2
City
Wichita
State/Province
Kansas
ZIP/Postal Code
67214
Country
United States
Facility Name
Facility #1
City
Boston
State/Province
Massachusetts
ZIP/Postal Code
2115
Country
United States
Facility Name
Facility #1
City
Farmington Hills
State/Province
Michigan
ZIP/Postal Code
48334
Country
United States
Facility Name
Facility #1
City
Chesterfield
State/Province
Missouri
ZIP/Postal Code
63005
Country
United States
Facility Name
Facility #1
City
O'Fallon
State/Province
Missouri
ZIP/Postal Code
63368
Country
United States
Facility Name
Facility #2
City
Saint Louis
State/Province
Missouri
ZIP/Postal Code
63104
Country
United States
Facility Name
Facility #1
City
Saint Peters
State/Province
Missouri
ZIP/Postal Code
63303
Country
United States
Facility Name
Facility #1
City
Mount Arlington
State/Province
New Jersey
ZIP/Postal Code
7856
Country
United States
Facility Name
Facility #2
City
Springfield
State/Province
New Jersey
ZIP/Postal Code
7081
Country
United States
Facility Name
Facility #1
City
West Long Branch
State/Province
New Jersey
ZIP/Postal Code
7764
Country
United States
Facility Name
Facility #1
City
Amherst
State/Province
New York
ZIP/Postal Code
14226
Country
United States
Facility Name
Facility #1
City
Brooklyn
State/Province
New York
ZIP/Postal Code
11229
Country
United States
Facility Name
Facility #1
City
New York
State/Province
New York
ZIP/Postal Code
10032
Country
United States
Facility Name
Facility #1
City
Canton
State/Province
Ohio
ZIP/Postal Code
44718
Country
United States
Facility Name
Facility #1
City
Centerville
State/Province
Ohio
ZIP/Postal Code
45459
Country
United States
Facility Name
Facility #1
City
Cleveland
State/Province
Ohio
ZIP/Postal Code
44195
Country
United States
Facility Name
Facility #1
City
Dayton
State/Province
Ohio
ZIP/Postal Code
45459
Country
United States
Facility Name
Facility #1
City
Lakewood
State/Province
Ohio
ZIP/Postal Code
44107
Country
United States
Facility Name
Facility #1
City
Westerville
State/Province
Ohio
ZIP/Postal Code
43081
Country
United States
Facility Name
Facility #1
City
Oklahoma City
State/Province
Oklahoma
ZIP/Postal Code
73116
Country
United States
Facility Name
Facility #1
City
Portland
State/Province
Oregon
ZIP/Postal Code
97210
Country
United States
Facility Name
Facility #1
City
Jenkintown
State/Province
Pennsylvania
ZIP/Postal Code
19046
Country
United States
Facility Name
Facility #1
City
Media
State/Province
Pennsylvania
ZIP/Postal Code
19063
Country
United States
Facility Name
Facility #1
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19104
Country
United States
Facility Name
Facility #1
City
East Providence
State/Province
Rhode Island
ZIP/Postal Code
02914
Country
United States
Facility Name
Facility #1
City
Providence
State/Province
Rhode Island
ZIP/Postal Code
2906
Country
United States
Facility Name
Facility #1
City
Port Royal
State/Province
South Carolina
ZIP/Postal Code
29935
Country
United States
Facility Name
Facility #1
City
Cordova
State/Province
Tennessee
ZIP/Postal Code
38018
Country
United States
Facility Name
Facility #2
City
Nashville
State/Province
Tennessee
ZIP/Postal Code
37203
Country
United States
Facility Name
Facility #1
City
Nashville
State/Province
Tennessee
ZIP/Postal Code
37212
Country
United States
Facility Name
Facility #1
City
Austin
State/Province
Texas
ZIP/Postal Code
78757
Country
United States
Facility Name
Facility #1
City
Dallas
State/Province
Texas
ZIP/Postal Code
75231
Country
United States
Facility Name
Facility #1
City
Houston
State/Province
Texas
ZIP/Postal Code
77084
Country
United States
Facility Name
Facility #1
City
San Antonio
State/Province
Texas
ZIP/Postal Code
78229-3900
Country
United States
Facility Name
Facility #3
City
San Antonio
State/Province
Texas
ZIP/Postal Code
78240
Country
United States
Facility Name
Facility #1
City
Salt Lake City
State/Province
Utah
ZIP/Postal Code
84108
Country
United States
Facility Name
Facility #1
City
Bennington
State/Province
Vermont
ZIP/Postal Code
5201
Country
United States
Facility Name
Facility #1
City
Hampton
State/Province
Virginia
ZIP/Postal Code
23666
Country
United States
Facility Name
Facility #1
City
Madison
State/Province
Wisconsin
ZIP/Postal Code
53705
Country
United States
Facility Name
Facility #2
City
Caba
State/Province
Buenos Aires
ZIP/Postal Code
-1405
Country
Argentina
Facility Name
Facility #1
City
Caba
State/Province
Buenos Aires
ZIP/Postal Code
C1012AAR
Country
Argentina
Facility Name
Facility #4
City
Caba
State/Province
Buenos Aires
ZIP/Postal Code
C1126AAB
Country
Argentina
Facility Name
Facility #3
City
Caba
State/Province
Buenos Aires
ZIP/Postal Code
C1427
Country
Argentina
Facility Name
Facility #1
City
Ciudad Autonoma de Buenos Aires
State/Province
Buenos Aires
ZIP/Postal Code
1111
Country
Argentina
Facility Name
Facility #3
City
Ciudad Autonoma de Buenos Aires
State/Province
Buenos Aires
ZIP/Postal Code
1430
Country
Argentina
Facility Name
Facility #2
City
Ciudad Autonoma de Buenos Aires
State/Province
Buenos Aires
ZIP/Postal Code
C1230AAZ
Country
Argentina
Facility Name
Facility #1
City
Cordoba
State/Province
Capital
ZIP/Postal Code
X5003DCE
Country
Argentina
Facility Name
Facility #1
City
Rosario
State/Province
Santa Fe
ZIP/Postal Code
2000
Country
Argentina
Facility Name
Facility #4
City
Buenos Aires
ZIP/Postal Code
1199
Country
Argentina
Facility Name
Facility #5
City
Caba
ZIP/Postal Code
C1428AQK
Country
Argentina
Facility Name
Facility #2
City
Cordoba
ZIP/Postal Code
X5004A0A
Country
Argentina
Facility Name
Facility #3
City
Cordoba
ZIP/Postal Code
X5009BIN
Country
Argentina
Facility Name
Facility #1
City
Santa Fe
ZIP/Postal Code
3000
Country
Argentina
Facility Name
Facility #1
City
Darlinghurst
State/Province
New South Wales
ZIP/Postal Code
2010
Country
Australia
Facility Name
Facility #1
City
Macquarie Park
State/Province
New South Wales
ZIP/Postal Code
2113
Country
Australia
Facility Name
Facility #1
City
Tumbi Umbi
State/Province
New South Wales
ZIP/Postal Code
2261
Country
Australia
Facility Name
Facility #1
City
Brisbane
State/Province
Queensland
ZIP/Postal Code
4032
Country
Australia
Facility Name
Facility #1
City
Caulfield
State/Province
Victoria
ZIP/Postal Code
3162
Country
Australia
Facility Name
Facility #1
City
Geelong
State/Province
Victoria
ZIP/Postal Code
3220
Country
Australia
Facility Name
Facility #1
City
Heidelberg
State/Province
Victoria
ZIP/Postal Code
3084
Country
Australia
Facility Name
Facility #1
City
Malvern
State/Province
Victoria
ZIP/Postal Code
3144
Country
Australia
Facility Name
Facility #2
City
Melbourne
State/Province
Victoria
Country
Australia
Facility Name
Facility #1
City
Parkville
State/Province
Victoria
ZIP/Postal Code
3050
Country
Australia
Facility Name
Facility #1
City
Nedlands
State/Province
Western Australia
ZIP/Postal Code
6009
Country
Australia
Facility Name
Facility #3
City
Melbourne
ZIP/Postal Code
3146
Country
Australia
Facility Name
Facility #1
City
Vienna
ZIP/Postal Code
1130
Country
Austria
Facility Name
Facility #1
City
Pleven
ZIP/Postal Code
5800
Country
Bulgaria
Facility Name
Facility #1
City
Plovdiv
ZIP/Postal Code
4002
Country
Bulgaria
Facility Name
Facility #1
City
Ruse
ZIP/Postal Code
7002
Country
Bulgaria
Facility Name
Facility #4
City
Sofia
ZIP/Postal Code
1142
Country
Bulgaria
Facility Name
Facility #3
City
Sofia
ZIP/Postal Code
1309
Country
Bulgaria
Facility Name
Facility #1
City
Sofia
ZIP/Postal Code
1431
Country
Bulgaria
Facility Name
Facility #2
City
Sofia
ZIP/Postal Code
1431
Country
Bulgaria
Facility Name
Facility #1
City
Kamloops
State/Province
British Columbia
ZIP/Postal Code
V2C 5T1
Country
Canada
Facility Name
Facility #1
City
Kelowna
State/Province
British Columbia
ZIP/Postal Code
V1Y 1Z9
Country
Canada
Facility Name
Facility #1
City
West Vancouver
State/Province
British Columbia
ZIP/Postal Code
V7T 1C5
Country
Canada
Facility Name
Facility #1
City
Halifax
State/Province
Nova Scotia
ZIP/Postal Code
B3S 1M7
Country
Canada
Facility Name
Facility #1
City
Kentville
State/Province
Nova Scotia
ZIP/Postal Code
B4N 4K9
Country
Canada
Facility Name
Facility #1
City
Ottawa
State/Province
Ontario
ZIP/Postal Code
K1N 5C8
Country
Canada
Facility Name
Facility #1
City
Peterborough
State/Province
Ontario
ZIP/Postal Code
K9H 2P4
Country
Canada
Facility Name
Facility #1
City
Montreal
State/Province
Quebec
ZIP/Postal Code
H1M 1B1
Country
Canada
Facility Name
Facility #1
City
Sherbrooke
State/Province
Quebec
ZIP/Postal Code
J1L 0H8
Country
Canada
Facility Name
Facility #1
City
Hradec Kralove
ZIP/Postal Code
500 09
Country
Czechia
Facility Name
Facility #1
City
Kladno
ZIP/Postal Code
272 01
Country
Czechia
Facility Name
Facility #1
City
Olomouc
ZIP/Postal Code
779 00
Country
Czechia
Facility Name
Facility #1
City
Praha 10
ZIP/Postal Code
109 00
Country
Czechia
Facility Name
Facility #1
City
Montpellier
State/Province
Herault
ZIP/Postal Code
34295
Country
France
Facility Name
Facility #1
City
Bordeaux
ZIP/Postal Code
33076
Country
France
Facility Name
Facility #1
City
Bron Cedex
ZIP/Postal Code
69677
Country
France
Facility Name
Facility #1
City
Marseille Cedex 05
ZIP/Postal Code
13385
Country
France
Facility Name
Facility #1
City
Nantes
ZIP/Postal Code
44800
Country
France
Facility Name
Facility #1
City
Paris
ZIP/Postal Code
75013
Country
France
Facility Name
Facility #1
City
Rouen
ZIP/Postal Code
76000
Country
France
Facility Name
Facility #1
City
Toulouse
ZIP/Postal Code
31059
Country
France
Facility Name
Facility #1
City
Neuburg
State/Province
Bayern
ZIP/Postal Code
86633
Country
Germany
Facility Name
Facility #1
City
Hoppegarten
State/Province
Brandenburg
ZIP/Postal Code
15366
Country
Germany
Facility Name
Facility #1
City
Oranienburg
State/Province
Brandenburg
ZIP/Postal Code
16515
Country
Germany
Facility Name
Facility #1
City
Frankfurt
State/Province
Hessen
ZIP/Postal Code
60528
Country
Germany
Facility Name
Facility #1
City
Leipzig
State/Province
Saxony
ZIP/Postal Code
4107
Country
Germany
Facility Name
Facility #1
City
Berlin
ZIP/Postal Code
10245
Country
Germany
Facility Name
Facility #2
City
Berlin
ZIP/Postal Code
10629
Country
Germany
Facility Name
Facility #1
City
Gera
ZIP/Postal Code
7551
Country
Germany
Facility Name
Facility #1
City
Homburg/Saar
ZIP/Postal Code
66241
Country
Germany
Facility Name
Facility #1
City
Schwerin
ZIP/Postal Code
19053
Country
Germany
Facility Name
Facility #5
City
Athens
ZIP/Postal Code
11528
Country
Greece
Facility Name
Facility #4
City
Athens
ZIP/Postal Code
15123
Country
Greece
Facility Name
Eisai Trial Site 1
City
Anjo-shi
State/Province
Aichi
ZIP/Postal Code
446-8510
Country
Japan
Facility Name
Eisai Trial Site 1
City
Nagoya-shi
State/Province
Aichi
ZIP/Postal Code
467-8602
Country
Japan
Facility Name
Eisai Trial Site 1
City
Obu-shi
State/Province
Aichi
ZIP/Postal Code
474-8511
Country
Japan
Facility Name
Eisai Trial Site 1
City
Yoshida-gun
State/Province
Fukui
ZIP/Postal Code
910-1193
Country
Japan
Facility Name
Eisai Trail Site 1
City
Kitakyushu-shi
State/Province
Fukuoka
ZIP/Postal Code
808-0024
Country
Japan
Facility Name
Eisai Trial Site 1
City
Omuta-shi
State/Province
Fukuoka
ZIP/Postal Code
837-0911
Country
Japan
Facility Name
Eisai Trial Site 1
City
Fujioka-shi
State/Province
Gunma
ZIP/Postal Code
375-0017
Country
Japan
Facility Name
Eisai Trial Site 1
City
Otake-shi
State/Province
Hiroshima
ZIP/Postal Code
739-0651
Country
Japan
Facility Name
Eisai Trial Site 2
City
Himeji-shi
State/Province
Hyogo
ZIP/Postal Code
670-0981
Country
Japan
Facility Name
Eisai Trial Site 1
City
Himeji
State/Province
Hyogo
ZIP/Postal Code
671-1227
Country
Japan
Facility Name
Eisai Trial Site 1
City
Kobe
State/Province
Hyogo
ZIP/Postal Code
650-0017
Country
Japan
Facility Name
Facility #1
City
Miki
State/Province
Kagawa
ZIP/Postal Code
761-0793
Country
Japan
Facility Name
Eisai Trial Site 3
City
Takamatsu City
State/Province
Kagawa
ZIP/Postal Code
760-8557
Country
Japan
Facility Name
Eisai Trial Site 1
City
Fujisawa-shi
State/Province
Kanagawa
ZIP/Postal Code
251-0038
Country
Japan
Facility Name
Eisai Trial Site 4
City
Kyoto City
State/Province
Kyoto
ZIP/Postal Code
616-8255
Country
Japan
Facility Name
Eisai Trial Site 1
City
Kyoto-shi
State/Province
Kyoto
ZIP/Postal Code
602-8566
Country
Japan
Facility Name
Eisai Trial Site 2
City
Kyoto-shi
State/Province
Kyoto
ZIP/Postal Code
602-8566
Country
Japan
Facility Name
Eisai Trial site 5
City
Kyoto-shi
State/Province
Kyoto
ZIP/Postal Code
607-8113
Country
Japan
Facility Name
Eisai Trial Site 1
City
Shimogyo-ku
State/Province
Kyoto
ZIP/Postal Code
600-8558
Country
Japan
Facility Name
Eisai Trial Site 1
City
Higashimorokatagun
State/Province
Miyazaki
ZIP/Postal Code
880-1111
Country
Japan
Facility Name
Eisai Trial Site 2
City
Okayama-shi
State/Province
Okayama-ken
ZIP/Postal Code
701-1192
Country
Japan
Facility Name
Eisai Trial Site 1
City
Kurashiki-shi
State/Province
Okayama
ZIP/Postal Code
710-0813
Country
Japan
Facility Name
Eisai Trial Site 2
City
Kurashiki-shi
State/Province
Okayama
ZIP/Postal Code
710-8692
Country
Japan
Facility Name
Eisai Trial Site 1
City
Okayama-shi
State/Province
Okayama
ZIP/Postal Code
700-8557
Country
Japan
Facility Name
Eisai Trial Site 1
City
Hirakata
State/Province
Osaka
ZIP/Postal Code
573-1121
Country
Japan
Facility Name
Eisai Trial Site 1
City
Naniwa-Ku
State/Province
Osaka
ZIP/Postal Code
556-0017
Country
Japan
Facility Name
Eisai Trial Site 1
City
Osaka-shi
State/Province
Osaka
ZIP/Postal Code
534-0021
Country
Japan
Facility Name
Eisai Trial Site 3
City
Osaka-shi
State/Province
Osaka
ZIP/Postal Code
543-8555
Country
Japan
Facility Name
Eisai Trial Site 2
City
Osaka-shi
State/Province
Osaka
ZIP/Postal Code
545-8586
Country
Japan
Facility Name
Eisai Trial site 2
City
Sakai-shi
State/Province
Osaka
ZIP/Postal Code
593-8301
Country
Japan
Facility Name
Eisai Trial Site 1
City
Suita-shi
State/Province
Osaka
ZIP/Postal Code
565-0871
Country
Japan
Facility Name
Eisai Trial Site 2
City
Suita-shi
State/Province
Osaka
ZIP/Postal Code
565-0874
Country
Japan
Facility Name
Eisai Trial Site 1
City
Suminoe-ku
State/Province
Osaka
ZIP/Postal Code
559-0004
Country
Japan
Facility Name
Eisai Trial Site 1
City
Kanzaki-gun
State/Province
Saga
ZIP/Postal Code
842-0192
Country
Japan
Facility Name
Eisai Trial Site 1
City
Otsu-shi
State/Province
Shiga
ZIP/Postal Code
520-2192
Country
Japan
Facility Name
Eisai Trial Site 2
City
Otsu
State/Province
Shiga
ZIP/Postal Code
520-0832
Country
Japan
Facility Name
Eisai Trial Site 1
City
Tokushima-shi
State/Province
Tokushima
ZIP/Postal Code
770-8503
Country
Japan
Facility Name
Eisai Trial Site 1
City
Bunkyo-ku
State/Province
Tokyo
ZIP/Postal Code
113-0034
Country
Japan
Facility Name
Eisai Trial Site 2
City
Bunkyo-ku
State/Province
Tokyo
ZIP/Postal Code
113-8603
Country
Japan
Facility Name
Eisai Trial Site 1
City
Kodaira-shi
State/Province
Tokyo
ZIP/Postal Code
187-8551
Country
Japan
Facility Name
Eisai Trial Site 1
City
Minato-ku
State/Province
Tokyo
ZIP/Postal Code
108-0073
Country
Japan
Facility Name
Eisai Trial Site 1
City
Setagaya-ku
State/Province
Tokyo
ZIP/Postal Code
158-8531
Country
Japan
Facility Name
Eisai Trial Site 1
City
Shinjuku-ku
State/Province
Tokyo
ZIP/Postal Code
169-0073
Country
Japan
Facility Name
Eisai Trial Site 1
City
Sumida-ku
State/Province
Tokyo
ZIP/Postal Code
130-0004
Country
Japan
Facility Name
Eisai Trial Site 1
City
Hofu-shi
State/Province
Yamaguchi
ZIP/Postal Code
747-0802
Country
Japan
Facility Name
Eisai Trial Site 1
City
Kumamoto
ZIP/Postal Code
860-8556
Country
Japan
Facility Name
Eisai Trial Site 3
City
Kyoto
ZIP/Postal Code
606-0851
Country
Japan
Facility Name
Eisai Trial Site 1
City
Osaka
ZIP/Postal Code
553-0003
Country
Japan
Facility Name
Facility #1
City
Bucheon-si
State/Province
Gyeonggi-do
ZIP/Postal Code
14647
Country
Korea, Republic of
Facility Name
Facility #1
City
Seongnam
State/Province
Gyeonggi
ZIP/Postal Code
13620
Country
Korea, Republic of
Facility Name
Facility #1
City
Busan
ZIP/Postal Code
49201
Country
Korea, Republic of
Facility Name
Facility #1
City
Incheon
ZIP/Postal Code
22332
Country
Korea, Republic of
Facility Name
Facility #5
City
Seoul
ZIP/Postal Code
3722
Country
Korea, Republic of
Facility Name
Facility #3
City
Seoul
ZIP/Postal Code
4763
Country
Korea, Republic of
Facility Name
Facility #1
City
Seoul
ZIP/Postal Code
5030
Country
Korea, Republic of
Facility Name
Facility #4
City
Seoul
ZIP/Postal Code
6351
Country
Korea, Republic of
Facility Name
Facility #6
City
Seoul
ZIP/Postal Code
6973
Country
Korea, Republic of
Facility Name
Facility #2
City
Seoul
ZIP/Postal Code
7985
Country
Korea, Republic of
Facility Name
Facility #1
City
Katowice
Country
Poland
Facility Name
Facility #1
City
Kielce
ZIP/Postal Code
25-411
Country
Poland
Facility Name
Facility #1
City
Krakow
ZIP/Postal Code
30-149
Country
Poland
Facility Name
Facility #1
City
Poznari
ZIP/Postal Code
61-853
Country
Poland
Facility Name
Facility #1
City
Poznań
Country
Poland
Facility Name
Facility #1
City
Siemianowice Śląskie
ZIP/Postal Code
41-100
Country
Poland
Facility Name
Facility #1
City
Warszawa
ZIP/Postal Code
01-684
Country
Poland
Facility Name
Facility #1
City
Guimarães
ZIP/Postal Code
4835-044
Country
Portugal
Facility Name
Facility #1
City
Moscow
ZIP/Postal Code
119991
Country
Russian Federation
Facility Name
Facility #1
City
Bratislava
ZIP/Postal Code
85107
Country
Slovakia
Facility Name
Facility #1
City
Elche
State/Province
Alicante
ZIP/Postal Code
3203
Country
Spain
Facility Name
Facility #1
City
Sant Cugat Del Valles
State/Province
Barcelona
ZIP/Postal Code
8195
Country
Spain
Facility Name
Facility #1
City
Getxo
State/Province
Bizkaia
ZIP/Postal Code
48993
Country
Spain
Facility Name
Facility #1
City
Donostia/San Sebastian
State/Province
Gipuzkoa
ZIP/Postal Code
20009
Country
Spain
Facility Name
Facility #1
City
Palma de Mallorca
State/Province
Illes Balears
ZIP/Postal Code
7120
Country
Spain
Facility Name
Facility #1
City
El Palmar
State/Province
Murcia
ZIP/Postal Code
30120
Country
Spain
Facility Name
Facility #1
City
Barcelona
ZIP/Postal Code
8028
Country
Spain
Facility Name
Facility #2
City
Madrid
ZIP/Postal Code
28049
Country
Spain
Facility Name
Facility #1
City
Madrid
ZIP/Postal Code
28223
Country
Spain
Facility Name
Facility #1
City
Valencia
ZIP/Postal Code
46010
Country
Spain
Facility Name
Facility #2
City
Valencia
ZIP/Postal Code
46026
Country
Spain
Facility Name
Facility #1
City
Cambridge
State/Province
Cambridgeshire
ZIP/Postal Code
CB21 5EF
Country
United Kingdom
Facility Name
Facility #1
City
Chester
State/Province
Cheshire
ZIP/Postal Code
CH2 1BQ
Country
United Kingdom
Facility Name
Facility #1
City
Winwick, Warrington
State/Province
Cheshire
ZIP/Postal Code
WA2 8WA
Country
United Kingdom
Facility Name
Facility #1
City
Plymouth
State/Province
Devon
ZIP/Postal Code
PL6 8BT
Country
United Kingdom
Facility Name
Facility #1
City
Bournemouth
State/Province
Dorset
ZIP/Postal Code
BH1 4JQ
Country
United Kingdom
Facility Name
Facility #1
City
Crowborough
State/Province
East Sussex
ZIP/Postal Code
TN6 1HB
Country
United Kingdom
Facility Name
Facility #1
City
Manchester
State/Province
Greater Manchester
ZIP/Postal Code
M13 9WL
Country
United Kingdom
Facility Name
Facility #1
City
Southampton
State/Province
Hampshire
ZIP/Postal Code
SO30 3JB
Country
United Kingdom
Facility Name
Facility #1
City
Glasgow
State/Province
Lanarkshire
ZIP/Postal Code
G20 0XA
Country
United Kingdom
Facility Name
Facility #1
City
Blackpool
State/Province
Lancashire
ZIP/Postal Code
FY2 0JH
Country
United Kingdom
Facility Name
Facility #1
City
Preston
State/Province
Lancashire
ZIP/Postal Code
PR2 8DW
Country
United Kingdom
Facility Name
Facility #2
City
London
State/Province
Middlesex
ZIP/Postal Code
TW7 6FY
Country
United Kingdom
Facility Name
Facility #1
City
Bath
State/Province
North East Somerset
ZIP/Postal Code
BA1 3NG
Country
United Kingdom
Facility Name
Facility #1
City
Oxford
State/Province
Oxfordshire
ZIP/Postal Code
OX3 7JX
Country
United Kingdom
Facility Name
Facility #1
City
Aberdeen
State/Province
Scotland
ZIP/Postal Code
AB25 2ZH
Country
United Kingdom
Facility Name
Facility #1
City
Sheffield
State/Province
South Yorkshire
ZIP/Postal Code
S5 7JT
Country
United Kingdom
Facility Name
Facility #1
City
Leatherhead
State/Province
Surrey
ZIP/Postal Code
KT22 7AD
Country
United Kingdom
Facility Name
Facility #1
City
Birmingham
State/Province
West Midlands
ZIP/Postal Code
B168QQ
Country
United Kingdom
Facility Name
Facility #1
City
Swindon
State/Province
Wilts
ZIP/Postal Code
SN3 6BW
Country
United Kingdom
Facility Name
Facility #2
City
Glasgow
ZIP/Postal Code
G51 4TF
Country
United Kingdom
Facility Name
Facility #1
City
Guildford
ZIP/Postal Code
GU2 7YD
Country
United Kingdom
Facility Name
Facility #1
City
London
ZIP/Postal Code
W1G 9RU
Country
United Kingdom
Facility Name
Facility #4
City
London
ZIP/Postal Code
W6 8RF
Country
United Kingdom
Facility Name
Facility #3
City
London
ZIP/Postal Code
WC1X 8QD
Country
United Kingdom

12. IPD Sharing Statement

Plan to Share IPD
Undecided
Citations:
PubMed Identifier
35897078
Citation
Bullich S, Mueller A, De Santi S, Koglin N, Krause S, Kaplow J, Kanekiyo M, Roe-Vellve N, Perrotin A, Jovalekic A, Scott D, Gee M, Stephens A, Irizarry M. Evaluation of tau deposition using 18F-PI-2620 PET in MCI and early AD subjects-a MissionAD tau sub-study. Alzheimers Res Ther. 2022 Jul 27;14(1):105. doi: 10.1186/s13195-022-01048-x.
Results Reference
derived

Learn more about this trial

A 24-Month Study to Evaluate the Efficacy and Safety of Elenbecestat (E2609) in Participants With Early Alzheimer's Disease

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