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Dose-Finding Study To Evaluate Safety, Tolerability, and Efficacy of E2609 in Participants With Mild Cognitive Impairment Due to Alzheimer's Disease (Prodromal Alzheimer's Disease) and Mild to Moderate Dementia Due to Alzheimer's Disease

A Placebo-Controlled, Double-Blind, Parallel-Group, Randomized, Proof-of-Concept, Dose-Finding Study To Evaluate Safety, Tolerability, and Efficacy of E2609 in Subjects With Mild Cognitive Impairment Due to Alzheimer's Disease (Prodromal Alzheimer's Disease) and Mild to Moderate Dementia Due to Alzheimer's Disease

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02322021
Enrollment
70
Registered
2014-12-22
Start date
2014-11-26
Completion date
2019-12-20
Last updated
2021-03-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimer Disease, Dementia, Alzheimer Type

Keywords

E2609, Mild Cognitive Impairment, Mild to Moderate Dementia, Alzheimer's Disease, Prodromal Alzheimer's Disease

Brief summary

This is a Phase 2 study to evaluate safety and efficacy in participants with Mild Cognitive Impairment due to Alzheimer's Disease/Prodromal Alzheimer's Disease (referred to as MCI/Prodromal) and mild to moderate dementia due to Alzheimer's Disease (referred to as mild to moderate AD). This study will have a Core Phase and an Extension Phase.

Interventions

DRUGE2609

Each participant will receive 2 tablets, which when combined will make up the required doses of E2609 or placebo, to be administered orally once per day (QD) with food.

DRUGPlacebo

Each participant will receive 2 tablets, which when combined will make up the required doses of E2609 or placebo, to be administered orally once per day (QD) with food.

Sponsors

Biogen
CollaboratorINDUSTRY
Eisai Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
50 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

Participants must meet all of the following criteria to be included in this study: 1. Meets the core clinical research criteria of the National Institute on Aging-Alzheimer's Association (NIA-AA) for MCI due to AD (which is consistent with Prodromal AD) or AD dementia and is 'staged' or classified as either MCI or mild to moderate dementia. 2. Amyloid positive Positron Emission Tomography (PET) image based on centralized PET scan reading. 3. Male or female, age 50 to 85 years, inclusive at time of consent. 4. Must have an identified caregiver or informant who is willing and able to provide follow-up information on the participant throughout the course of the study. 5. If receiving an Acetylcholinesterase Inhibitor (AChEI) or memantine, must have been on a stable dose for at least 12 weeks before the Baseline cognitive assessments, with no plans for dose adjustment in the foreseeable future. Treatment-naive participants can be entered into the study but there should be no plans to initiate treatment with AChEIs or memantine at the time of entry into the study. 6. Must have been on stable doses of all other permitted chronically used concomitant medications (that is, not related to their cognitive decline) for at least 4 weeks before randomization.

Exclusion criteria

Participants who meet any of the following criteria will be excluded from this study: 1. Any neurological condition that may be contributing to cognitive impairment above and beyond that caused by the participant's AD pathology, including any co-morbidities such as cerebrovascular disease, detected by medical history, neurological examination, or magnetic resonance imaging (MRI). 2. History of transient ischemic attacks or stroke within 12 months of Screening. 3. History of epilepsy. 4. Evidence of depression on a rating scale at Screening or any psychiatric diagnosis or symptoms, (example, hallucinations, major depression, etc.) that could confound the diagnosis or could interfere with study assessments or procedures. This includes suicidal ideation or suicidal behavior within 6 months prior to Screening, or hospitalization or treatment for suicidal behavior in the past 5 years. 5. Abnormally low serum vitamin B12. 6. Thyroid stimulating hormone above the normal range. This applies to all participants regardless of whether or not they are taking thyroid supplements. 7. Participants with liver disease (hepatic impairment), at Screening or Baseline. Participant with Gilbert's syndrome need not be excluded. 8. Not able to have a MRI, PET scanning, or cerebrospinal fluid (CSF) collection by Lumbar Puncture (LP). 9. Severe visual or hearing impairment that would prevent the participant from performing psychometric tests accurately. 10. History of immunodeficiency disorders. 11. Participants with chronic viral hepatitis. 12. History of Tuberculosis (TB). Participants with no history of TB will be tested for previous TB exposure and a positive test will be exclusionary. 13. History of ophthalmic shingles or ocular Herpes Simplex Virus (HSV) infection. 14. Any live vaccine in the 3 months or any active infection within the last 4 weeks before study drug administration (that is, randomization). 15. Any chronic inflammatory disease that is not adequately controlled or requires immunosuppressive or immunomodulatory therapy. 16. T helper cell, cytotoxic T cell, or B cell absolute counts below normal. 17. Immunoglobulin (Ig) IgG, IgA, or IgM levels below normal at Screening or Baseline, unless both the Investigator and the Medical Monitor agree that the finding is not clinically significant. 18. Clinically significant deviation from normal in physical examination, vital signs, or clinical laboratory tests at Screening or Baseline. 19. Exclusionary cardiac factors include: prolonged QT interval greater than 450 millisecond from Electrocardiograms (ECGs); history of risk factors for torsade de pointes or the use of concomitant medications that prolong the QT/corrected QT interval (QTc); left bundle branch block; persistent low or high heart rate; persistent low or high blood pressure; history of cardiac arrhythmias; other clinically significant ECG abnormalities. 20. Type 1 or Type 2 diabetes mellitus that is not well controlled. 21. Malignant neoplasms within 5 years before Screening (except for basal or squamous cell carcinoma in situ of the skin, or localized prostate cancer that did not require systemic therapy; these do not exclude the participant). 22. Medical conditions (example, cardiac, respiratory, gastrointestinal, renal disease) that are not stably controlled, or which, in the opinion of the investigator(s), could affect the participant's safety or interfere with the study assessments. 23. Hypopigmentation conditions (example, albinism and vitiligo). 24. Known or suspected history of drug or alcohol dependency or abuse within 2 years, current use of recreational drugs or a positive urine drug test. 25. Planned surgery that requires general, spinal, or epidural anesthesia that would take place during the study. 26. Participation in any other interventional clinical study related to cognitive impairment within 6 months before Screening unless it can be documented that the participant was in a placebo treatment arm. 27. Currently enrolled in another clinical study or used any investigational drug or device within 60 days or 5 half-lives of the investigational medication (whichever is longer) proceeding informed consent. 28. Hypersensitivity to the study drug or any of the excipients or to other Beta Secretase Cleaving Enzyme (BACE) inhibitors, or to the PET tracer, or components of its formulation. 29. Females who are lactating or pregnant. Females of childbearing potential who do not agree to adhere to the protocol specified methods for avoiding pregnancy. 30. Males who do not meet the protocol requirements for avoiding their partners becoming pregnant. Sperm donation is not permitted.

Design outcomes

Primary

MeasureTime frameDescription
Extension Phase: Number of Participants With Abnormal Magnetic Resonance Imaging (MRI) FindingsUp to 34 monthsBrain MRIs are collected to assess for potential drug-related changes that might have constituted a safety concern. Safety brain MRI is assessed using a standardized procedure that included fluid-attenuated inversion recovery (FLAIR), gradient-echo, T1, and diffusion-weighted sequences to determine the presence of focal lesions including, but not limited to, evidence for ischemic and hemorrhagic stroke, subdural hematoma, neoplasm, arteriovenous malformation, micro and macrohemorrhages, superficial siderosis, lacunar infarcts, white matter abnormalities, and vasogenic edema. Participants with abnormal values related to safety brain MRI were reported.
Core Phase: Number of Participants With Treatment Emergent Adverse Events (TEAEs)Up to 21 monthsA TEAE is defined as an adverse event that emerges during treatment, having been absent at pre-treatment (Baseline) or re-emerges during treatment, having been present at pre-treatment (Baseline) but stopped before treatment, or worsens in severity during treatment relative to the pre-treatment state, when the adverse event is continuous.
Core Phase: Number of Participants With Serious Adverse Events (SAEs)Up to 21 monthsA SAE is any untoward medical occurrence that at any dose: results in death; is life-threatening (that is, the participant is at immediate risk of death from the adverse event as it occurs, this does not include an event that, has it occurred in a more severe form or is allowed to continue, might have cause death); requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability or incapacity; is a congenital anomaly or birth defect (in the child of a participant who is exposed to the study drug).
Core Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesUp to 21 months
Core Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMonth 0(Baseline,Week 2,Week 3,Week 4);Month 1(Week 5,Week 7);Month 2(Week 9,Week 11);Month 3(Week 13);Month 4(Week 17);Month 5(Week 21);Month 6(Week 27);Month 9(Week 40);Month 12(Week 53);Month 15(Week 66);Month 18(Week 79) and Follow-up at Month 1 and 3Participants having no markedly abnormal vital sign values (no markedly abnormal high or no markedly abnormal low) in all core phase arms were not included in the data reported.
Core Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsUp to 21 monthsQTcF interval means corrected QT interval (QTc) calculated using Fridericia's formula.
Extension Phase: Number of Participants With TEAEs and SAEsUp to 34 monthsTEAE: adverse event that emerges during treatment, having been absent at pre-treatment or reemerges during treatment, having been present at pre-treatment but stopped before treatment, or worsens in severity during treatment relative to pre-treatment state. Number of participants with TEAEs were reported based on safety assessments of laboratory tests, physical examination, regular measurement of vital signs, magnetic resonance imaging and electrocardiogram parameter values. SAE: any untoward medical occurrence that at any dose: results in death; is life-threatening (immediate risk of death from adverse event, this does not include event that, had it occurred in more severe form or is allowed to continue, might have caused death); requires inpatient or prolongation of existing hospitalization; results in persistent/significant disability/incapacity; is congenital anomaly/birth defect (in child of participant exposed to drug). Number of participants with TEAEs and SAEs were reported.
Extension Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesUp to 34 months
Extension Phase: Number of Participants With Markedly Abnormal ECG FindingsUp to 34 monthsQTcF interval means QTc interval calculated using Fridericia's formula.
Extension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesUp to 34 months

Secondary

MeasureTime frameDescription
Core Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentMonth 1 (Week 5) and Month 18 (Week 79)The measurement of the amyloid proteins Abeta(1-x) and Abeta(1-42), in CSF have been shown to be important biomarkers for alzheimer's disease.
Core Phase: Mean Concentration of Elenbecestat in CSFMonth 1 (Week 5) and Month 18 (Week 79)
Core Phase: Mean Concentration of Elenbecestat in PlasmaMonth 0 (Week 3), Month 3 (Week 13), Month 6 (Week 27), Month 12 (Week 53): Pre-dose, 1 to 6 hours Post-dose; Month 1 (Week 5), Month 18 (Week 79): Pre-dose, 4 to 8 hours Post-dose
Extension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresBaseline, at Month 3, at Month 6, at Month 9, at Month 12, at Month 15, at Month 18, at Month 21, at Month 24, at Month 28 and at Month 32MMSE is a 30-point scale that measures orientation to time and place, registration, immediate and delayed recall, attention, language, and drawing. Scores ranges from 0 (most impaired) to 30 (no impairment). Lower score indicates more impairment.
Extension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreBaseline, at Month 3, at Month 6, at Month 9, at Month 12, at Month 15, at Month 18, at Month 21, at Month 24, at Month 28 and at Month 32The FAQ has 10 items concerned with performing daily tasks necessary for independent living. The caregiver or informant provides performance ratings on 10 complex activities of daily living performed within the preceding 4 weeks. Score ranges from 0 (independent) to 30 (dependent). Lower score indicates that participant can live independently. Higher score indicates that participant cannot live independently.
Extension Phase: Percent Change From Extension Phase Baseline in Plasma Amyloid (A) Beta(1-x) Measurements at Months 12 and 24Month 12 and Month 24The measurement of the amyloid protein Abeta(1-x), in plasma has been shown to be an important biomarker for alzheimer's disease.
Extension Phase: Percent Change From Extension Phase Baseline in Total Hippocampal Volume at Month 24Month 24Total hippocampal volume is measured by volumetric magnetic resonance imaging (vMRI). Volumetric imaging is a 3D technique where all the MRI signals are collected from the entire tissue sample and imaged as a whole entity, therefore providing a high signal to noise ratio. Total hippocampal volume is calculated by summing up right and left hippocampal volumes.
Extension Phase: Percent Change From Extension Phase Baseline in Left and Right Hippocampal Volume at Month 24Month 24Left and right hippocampal volume is measured by vMRI. Volumetric imaging is a 3D technique where all the MRI signals are collected from the entire tissue sample and imaged as a whole entity, therefore providing a high signal to noise ratio. Left and right hippocampal volumes represent a summary measure in the left and right hippocampal regions.
Extension Phase: Percent Change From Extension Phase Baseline in Whole Brain Volume at Month 24Month 24Whole brain volume is measured by vMRI. Volumetric imaging is a 3D technique where all the MRI signals are collected from the entire tissue sample and imaged as a whole entity, therefore providing a high signal to noise ratio. Whole brain volume represents a summary measure of total brain parenchyma which includes the cerebrum, basal ganglia, diencephalon, and cerebellum.
Extension Phase: Percent Change From Extension Phase Baseline in Total Ventricular Volume at Month 24Month 24Total Ventricular Volume is measured by vMRI. Volumetric imaging is a 3D technique where all the MRI signals are collected from the entire tissue sample and imaged as a whole entity, therefore providing a high signal to noise ratio. Total ventricular volume represents a summary measure of total including right and left lateral ventricles, third ventricle and fourth ventricle of brain.

Countries

United States

Participant flow

Recruitment details

Participants took part in the study at 30 investigative sites in the United States from 26 November 2014 to 20 December 2019.

Pre-assignment details

A total of 444 participants were screened, of which 374 participants were screen failures and 70 participants were randomized and treated, out of which 43 participants completed the core phase and 41 participants entered the extension phase. No participant completed the extension phase. This study has Core Phase and an Extension Phase.

Participants by arm

ArmCount
Core Phase: Placebo
Participants with mild cognitive impairment due to AD/prodromal AD and mild to moderate AD received two elenbecestat matched-placebo tablets, orally, once daily with food up to 18 months. Participants who completed 18 months treatment or who discontinued taking study drug prematurely were followed up to 3 months (12 weeks) after last dose of elenbecestat matched-placebo in core phase.
17
Core Phase: Elenbecestat 5 mg Then 50 mg
Participants with mild cognitive impairment due to AD/prodromal AD and mild to moderate AD received one elenbecestat 5 mg tablet and one elenbecestat-matched placebo tablet (to maintain blinding), orally, once daily with food up to 18 months. Participants who remained on treatment were reassigned to elenbecestat 50 mg (two 25 mg tablets) if they had at least 3 months (12 weeks) of treatment remaining in the randomization phase (treatment and follow-up), orally, once daily with food up to 18 months. Participants who completed 18 months treatment or who discontinued taking study drug prematurely were followed up to 3 months (12 weeks) after last dose of elenbecestat in core phase.
17
Core Phase: Elenbecestat 15 mg Then 50 mg
Participants with mild cognitive impairment due to AD/prodromal AD and mild to moderate AD received elenbecestat 15 mg (one 10 mg and one 5 mg tablets), orally, once daily with food up to 18 months. Participants who remained on treatment were reassigned to elenbecestat 50 mg (two 25 mg tablets) if they had at least 3 months (12 weeks) of treatment remaining in the randomization phase (treatment and follow-up), orally, once daily with food up to 18 months. Participants who completed 18 months treatment or who discontinued taking study drug prematurely were followed up to 3 months (12 weeks) after last dose of elenbecestat in core phase.
19
Core Phase: Elenbecestat 50 mg
Participants with mild cognitive impairment due to AD/prodromal AD and mild to moderate AD received elenbecestat 50 mg (two 25 mg tablets), orally, once daily with food up to 18 months. Participants who completed 18 months treatment or who discontinued taking study drug prematurely were followed up to 3 months (12 weeks) after last dose of elenbecestat in core phase.
17
Total70

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Core PhaseAdverse Event13420
Core PhaseLost to Follow-up00010
Core PhaseOther00100
Core PhaseParticipant Choice45420
Extension PhaseAdverse Event00003
Extension PhaseLost to Follow-up00001
Extension PhaseOther00003
Extension PhaseParticipant Choice00006
Extension PhaseStudy terminated by sponsor000028

Baseline characteristics

CharacteristicTotalCore Phase: PlaceboCore Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Elenbecestat 50 mg
Age, Customized
Greater than (>) 65 years
58 Participants13 Participants14 Participants17 Participants14 Participants
Age, Customized
Less than or equal to (<=) 65 years
12 Participants4 Participants3 Participants2 Participants3 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants1 Participants0 Participants0 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
67 Participants16 Participants17 Participants19 Participants15 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
9 Participants2 Participants0 Participants2 Participants5 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants0 Participants1 Participants0 Participants
Race (NIH/OMB)
White
60 Participants15 Participants17 Participants16 Participants12 Participants
Sex: Female, Male
Female
42 Participants11 Participants9 Participants12 Participants10 Participants
Sex: Female, Male
Male
28 Participants6 Participants8 Participants7 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 170 / 170 / 190 / 171 / 41
other
Total, other adverse events
15 / 1715 / 1718 / 1915 / 1730 / 41
serious
Total, serious adverse events
2 / 172 / 175 / 191 / 176 / 41

Outcome results

Primary

Core Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) Findings

QTcF interval means corrected QT interval (QTc) calculated using Fridericia's formula.

Time frame: Up to 21 months

Population: The safety analysis set was the group of participants who received at least 1 dose of study drug in the core phase and had at least 1 post-dose safety assessment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline increase of >30 millisecond (msec) in QTcF interval2 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline value of >480 msec in QTcF interval0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline value of >450 msec in QTcF interval1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline increase of >30 millisecond (msec) in QTcF interval4 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline value of >450 msec in QTcF interval6 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline value of >480 msec in QTcF interval0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline value of >450 msec in QTcF interval4 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline increase of >30 millisecond (msec) in QTcF interval4 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline value of >480 msec in QTcF interval1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline value of >480 msec in QTcF interval0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline value of >450 msec in QTcF interval3 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Electrocardiogram (ECG) FindingsAt least one post-baseline increase of >30 millisecond (msec) in QTcF interval2 Participants
Primary

Core Phase: Number of Participants With Markedly Abnormal Vital Sign Values

Participants having no markedly abnormal vital sign values (no markedly abnormal high or no markedly abnormal low) in all core phase arms were not included in the data reported.

Time frame: Month 0(Baseline,Week 2,Week 3,Week 4);Month 1(Week 5,Week 7);Month 2(Week 9,Week 11);Month 3(Week 13);Month 4(Week 17);Month 5(Week 21);Month 6(Week 27);Month 9(Week 40);Month 12(Week 53);Month 15(Week 66);Month 18(Week 79) and Follow-up at Month 1 and 3

Population: The safety analysis set was the group of participants who received at least 1 dose of study drug in the core phase and had at least 1 post-dose safety assessment. Here number analyzed signifies participants who were evaluable for this outcome measure for specific categories at given time points.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Baseline)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 12: Week 53)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Follow-up: Month 3)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 1: Week 7)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Baseline)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 9: Week 40)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 2)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Follow-up: Month 3)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 3)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 6: Week 27)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 4)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 2: Week 9)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 1: Week 5)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 4: Week 17)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 1: Week 7)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 3)2 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 3: Week 13)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 9: Week 40)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 2: Week 11)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 3: Week 13)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 1: Week 5)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 4: Week 17)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 5: Week 21)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 4)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 0: Week 4)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 6: Week 27)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 9: Week 40)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 2)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Month 0: Week 3)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 12: Week 53)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Follow-up: Month 1)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 15: Week 66)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Temperature (Month 0: Week 4)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Follow-up: Month 3)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 18: Week 79)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Follow-up: Month 1)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Follow-up: Month 1)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Follow-up: Month 3)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Weight (Month 0: Baseline)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 1: Week 5)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 18: Week 79)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 0: Baseline)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 3: Week 13)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 15: Week 66)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 6: Week 27)0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Month 9: Week 40)1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 9: Week 40)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 15: Week 66)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 6: Week 27)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 6: Week 27)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Follow-up: Month 3)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 4)3 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 9: Week 40)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Month 0: Week 3)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Baseline)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 1: Week 7)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Follow-up: Month 3)2 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 9: Week 40)2 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 2)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Month 9: Week 40)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 6: Week 27)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 18: Week 79)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 3)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 9: Week 40)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 3: Week 13)2 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 12: Week 53)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 4)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Weight (Month 0: Baseline)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 4: Week 17)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Follow-up: Month 3)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 1: Week 5)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 2: Week 9)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Baseline)2 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 15: Week 66)3 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 1: Week 7)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 9: Week 40)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 3: Week 13)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 12: Week 53)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 0: Baseline)3 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 18: Week 79)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 2: Week 11)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 3)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 1: Week 5)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Temperature (Month 0: Week 4)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 3: Week 13)2 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Follow-up: Month 3)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Follow-up: Month 1)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 1: Week 5)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 4: Week 17)3 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Follow-up: Month 1)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 0: Week 4)1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Follow-up: Month 1)0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 5: Week 21)3 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 2)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 9: Week 40)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Baseline)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 2)2 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 3)4 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 4)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Temperature (Month 0: Week 4)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 1: Week 5)2 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 1: Week 7)3 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 2: Week 9)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 2: Week 11)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 3: Week 13)3 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 4: Week 17)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 5: Week 21)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 6: Week 27)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 9: Week 40)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 12: Week 53)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 15: Week 66)2 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 18: Week 79)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Follow-up: Month 1)2 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Follow-up: Month 3)4 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Weight (Month 0: Baseline)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 0: Baseline)2 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 3: Week 13)2 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 6: Week 27)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Follow-up: Month 3)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Baseline)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 2)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 3)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 4)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 1: Week 5)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 1: Week 7)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 3: Week 13)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 4: Week 17)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 6: Week 27)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 9: Week 40)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 12: Week 53)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 15: Week 66)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 18: Week 79)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Follow-up: Month 1)1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Follow-up: Month 3)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Month 0: Week 3)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 0: Week 4)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 1: Week 5)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 9: Week 40)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Month 9: Week 40)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Follow-up: Month 1)0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Follow-up: Month 3)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 6: Week 27)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 1: Week 5)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 12: Week 53)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 3: Week 13)2 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 0: Baseline)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Temperature (Month 0: Week 4)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 15: Week 66)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Weight (Month 0: Baseline)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Follow-up: Month 3)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Baseline)2 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 18: Week 79)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Follow-up: Month 1)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 18: Week 79)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Month 9: Week 40)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Follow-up: Month 1)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 15: Week 66)2 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 12: Week 53)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 4)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Follow-up: Month 3)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 9: Week 40)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 6: Week 27)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 3)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Month 0: Week 3)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 5: Week 21)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 4: Week 17)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Follow-up: Month 3)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 0: Week 4)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 3: Week 13)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 2: Week 11)2 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure (Follow-up: Month 1)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 1: Week 5)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 1: Week 7)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 2: Week 9)2 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 3: Week 13)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 1: Week 5)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 4)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 1: Week 7)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 4: Week 17)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 3)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Week 2)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature (Month 0: Week 2)2 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 6: Week 27)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 0: Baseline)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Follow-up: Month 3)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure (Month 9: Week 40)0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure (Month 9: Week 40)1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight (Month 9: Week 40)1 Participants
Primary

Core Phase: Number of Participants With Serious Adverse Events (SAEs)

A SAE is any untoward medical occurrence that at any dose: results in death; is life-threatening (that is, the participant is at immediate risk of death from the adverse event as it occurs, this does not include an event that, has it occurred in a more severe form or is allowed to continue, might have cause death); requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability or incapacity; is a congenital anomaly or birth defect (in the child of a participant who is exposed to the study drug).

Time frame: Up to 21 months

Population: The safety analysis set was the group of participants who received at least 1 dose of study drug in the core phase and had at least 1 post-dose safety assessment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Core Phase: PlaceboCore Phase: Number of Participants With Serious Adverse Events (SAEs)2 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Serious Adverse Events (SAEs)2 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Serious Adverse Events (SAEs)5 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Serious Adverse Events (SAEs)1 Participants
Primary

Core Phase: Number of Participants With Treatment Emergent Adverse Events (TEAEs)

A TEAE is defined as an adverse event that emerges during treatment, having been absent at pre-treatment (Baseline) or re-emerges during treatment, having been present at pre-treatment (Baseline) but stopped before treatment, or worsens in severity during treatment relative to the pre-treatment state, when the adverse event is continuous.

Time frame: Up to 21 months

Population: The safety analysis set was the group of participants who received at least 1 dose of study drug in the core phase and had at least 1 post-dose safety assessment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Adverse Events (TEAEs)15 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Adverse Events (TEAEs)15 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Adverse Events (TEAEs)18 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Adverse Events (TEAEs)15 Participants
Primary

Core Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test Values

Time frame: Up to 21 months

Population: The safety analysis set was the group of participants who received at least 1 dose of study drug in the core phase and had at least 1 post-dose safety assessment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Calcium1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Leukocytes1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Neutrophils1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Hemoglobin1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Lymphocytes0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Potassium0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Potassium2 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Alkaline Phosphatase0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Alanine Aminotransferase1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Aspartate Aminotransferase0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Gamma Glutamyl Transferase1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Glucose0 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Glucose2 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Cholesterol1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Triglycerides1 Participants
Core Phase: PlaceboCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Creatinine0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Potassium0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Alanine Aminotransferase0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Creatinine2 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Glucose1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Triglycerides1 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Aspartate Aminotransferase0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Neutrophils0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Gamma Glutamyl Transferase0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Calcium0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Potassium4 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Hemoglobin0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Leukocytes0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Glucose4 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Alkaline Phosphatase0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Cholesterol0 Participants
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Lymphocytes2 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Potassium1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Calcium0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Cholesterol0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Potassium2 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Alkaline Phosphatase0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Creatinine0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Alanine Aminotransferase0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Aspartate Aminotransferase0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Triglycerides3 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Gamma Glutamyl Transferase0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Glucose0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Lymphocytes0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Leukocytes0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Glucose1 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Neutrophils0 Participants
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Hemoglobin0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Creatinine0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Alkaline Phosphatase1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Neutrophils1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Lymphocytes0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Cholesterol0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Potassium0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Glucose1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Leukocytes0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Calcium0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Aspartate Aminotransferase1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Potassium0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Gamma Glutamyl Transferase1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Triglycerides2 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Alanine Aminotransferase1 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Hemoglobin0 Participants
Core Phase: Elenbecestat 50 mgCore Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Glucose0 Participants
Primary

Extension Phase: Number of Participants With Abnormal Magnetic Resonance Imaging (MRI) Findings

Brain MRIs are collected to assess for potential drug-related changes that might have constituted a safety concern. Safety brain MRI is assessed using a standardized procedure that included fluid-attenuated inversion recovery (FLAIR), gradient-echo, T1, and diffusion-weighted sequences to determine the presence of focal lesions including, but not limited to, evidence for ischemic and hemorrhagic stroke, subdural hematoma, neoplasm, arteriovenous malformation, micro and macrohemorrhages, superficial siderosis, lacunar infarcts, white matter abnormalities, and vasogenic edema. Participants with abnormal values related to safety brain MRI were reported.

Time frame: Up to 34 months

Population: The safety analysis set was the group of participants who received at least 1 dose of study drug in the extension phase. Here number analyzed signifies participants who were evaluable for this outcome measure for specific categories.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Core Phase: PlaceboExtension Phase: Number of Participants With Abnormal Magnetic Resonance Imaging (MRI) FindingsBrain Vasogenic Edema0 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Abnormal Magnetic Resonance Imaging (MRI) FindingsBrain Microhemorrhages4 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Abnormal Magnetic Resonance Imaging (MRI) FindingsBrain White Matter Disease: Focal Lesions25 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Abnormal Magnetic Resonance Imaging (MRI) FindingsBrain White Matter Disease: No Lesions2 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Abnormal Magnetic Resonance Imaging (MRI) FindingsArea of superficial siderosis1 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Abnormal Magnetic Resonance Imaging (MRI) FindingsSpace occupying lesion (extra axial): Meningioma1 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Abnormal Magnetic Resonance Imaging (MRI) FindingsOther pituitary lesion1 Participants
Primary

Extension Phase: Number of Participants With Markedly Abnormal ECG Findings

QTcF interval means QTc interval calculated using Fridericia's formula.

Time frame: Up to 34 months

Population: The safety analysis set was the group of participants who received at least 1 dose of study drug in the extension phase.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Core Phase: PlaceboExtension Phase: Number of Participants With Markedly Abnormal ECG FindingsAt least one post-baseline increase of >30 msec in QTcF interval2 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Markedly Abnormal ECG FindingsAt least one post-baseline value of >450 msec in QTcF interval4 Participants
Primary

Extension Phase: Number of Participants With Markedly Abnormal Vital Sign Values

Time frame: Up to 34 months

Population: The safety analysis set was the group of participants who received at least 1 dose of study drug in the extension phase.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Core Phase: PlaceboExtension Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Diastolic Blood Pressure1 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Diastolic Blood Pressure1 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Systolic Blood Pressure5 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Temperature1 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal Low: Temperature10 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Markedly Abnormal Vital Sign ValuesMarkedly Abnormal High: Weight1 Participants
Primary

Extension Phase: Number of Participants With TEAEs and SAEs

TEAE: adverse event that emerges during treatment, having been absent at pre-treatment or reemerges during treatment, having been present at pre-treatment but stopped before treatment, or worsens in severity during treatment relative to pre-treatment state. Number of participants with TEAEs were reported based on safety assessments of laboratory tests, physical examination, regular measurement of vital signs, magnetic resonance imaging and electrocardiogram parameter values. SAE: any untoward medical occurrence that at any dose: results in death; is life-threatening (immediate risk of death from adverse event, this does not include event that, had it occurred in more severe form or is allowed to continue, might have caused death); requires inpatient or prolongation of existing hospitalization; results in persistent/significant disability/incapacity; is congenital anomaly/birth defect (in child of participant exposed to drug). Number of participants with TEAEs and SAEs were reported.

Time frame: Up to 34 months

Population: The safety analysis set was the group of participants who received at least 1 dose of study drug in the extension phase.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Core Phase: PlaceboExtension Phase: Number of Participants With TEAEs and SAEsTEAEs30 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With TEAEs and SAEsSAEs6 Participants
Primary

Extension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test Values

Time frame: Up to 34 months

Population: The safety analysis set was the group of participants who received at least 1 dose of study drug in the extension phase.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Triglycerides2 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Lymphocytes4 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Neutrophils2 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Hemoglobin1 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Potassium4 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Alanine Aminotransferase1 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Gamma Glutamyl Transferase2 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Glucose3 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Creatinine4 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal High: Urate1 Participants
Core Phase: PlaceboExtension Phase: Number of Participants With Treatment Emergent Markedly Abnormal Laboratory Safety Test ValuesMarkedly Abnormal Low: Platelets1 Participants
Secondary

Core Phase: Mean Concentration of Elenbecestat in CSF

Time frame: Month 1 (Week 5) and Month 18 (Week 79)

Population: The pharmacokinetic (PK) analysis set was the group of participants with at least 1 quantifiable elenbecestat plasma concentration accompanied by a documented dosing history in the core phase. Here overall number of participants analyzed signifies participants who were evaluable for this outcome measure. Here number analyzed signifies participants who were evaluable for this outcome measure at given time points.

ArmMeasureGroupValue (MEAN)Dispersion
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in CSFMonth 1 (Week 5)1.10 nanogram per milliliter (ng/mL)Standard Deviation 0.438
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in CSFMonth 18 (Week 79)0.10 nanogram per milliliter (ng/mL)Standard Deviation 0
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in CSFMonth 1 (Week 5)3.71 nanogram per milliliter (ng/mL)Standard Deviation 1.36
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in CSFMonth 18 (Week 79)2.72 nanogram per milliliter (ng/mL)Standard Deviation 3.197
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in CSFMonth 1 (Week 5)9.93 nanogram per milliliter (ng/mL)Standard Deviation 3.568
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in CSFMonth 18 (Week 79)14.46 nanogram per milliliter (ng/mL)Standard Deviation 3.411
Secondary

Core Phase: Mean Concentration of Elenbecestat in Plasma

Time frame: Month 0 (Week 3), Month 3 (Week 13), Month 6 (Week 27), Month 12 (Week 53): Pre-dose, 1 to 6 hours Post-dose; Month 1 (Week 5), Month 18 (Week 79): Pre-dose, 4 to 8 hours Post-dose

Population: The PK analysis set was the group of participants with at least 1 quantifiable elenbecestat plasma concentration accompanied by a documented dosing history in the core phase. Here overall number of participants analyzed signifies participants who were evaluable for this outcome measure. Here number analyzed signifies participants who were evaluable for this outcome measure at given time points.

ArmMeasureGroupValue (MEAN)Dispersion
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 12 (Week 53): Pre-dose13.84 ng/mLStandard Deviation 18.482
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 3 (Week 13): Pre-dose1.91 ng/mLStandard Deviation 1.703
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 6 (Week 27): 1 to 6 hours Post-dose11.11 ng/mLStandard Deviation 15.322
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 3 (Week 13): 1 to 6 hours Post-dose6.06 ng/mLStandard Deviation 2.456
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 0 (Week 3): Pre-dose1.43 ng/mLStandard Deviation 1.105
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 6 (Week 27): Pre-dose2.34 ng/mLStandard Deviation 2.196
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 18 (Week 79): Pre-dose7.88 ng/mLStandard Deviation 5.896
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 1 (Week 5): Pre-dose1.47 ng/mLStandard Deviation 0.87
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 18 (Week 79): 4 to 8 hours Post-dose47.16 ng/mLStandard Deviation 28.651
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 12 (Week 53): 1 to 6 hours Post-dose49.78 ng/mLStandard Deviation 40.656
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 1 (Week 5): 4 to 8 hours Post-dose4.80 ng/mLStandard Deviation 2.529
Core Phase: PlaceboCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 0 (Week 3): 1 to 6 hours Post-dose4.28 ng/mLStandard Deviation 3.185
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 3 (Week 13): Pre-dose6.90 ng/mLStandard Deviation 8.126
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 0 (Week 3): Pre-dose5.81 ng/mLStandard Deviation 3.785
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 0 (Week 3): 1 to 6 hours Post-dose18.49 ng/mLStandard Deviation 11.272
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 1 (Week 5): Pre-dose6.74 ng/mLStandard Deviation 4.246
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 1 (Week 5): 4 to 8 hours Post-dose19.59 ng/mLStandard Deviation 7.94
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 3 (Week 13): 1 to 6 hours Post-dose20.35 ng/mLStandard Deviation 8.893
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 6 (Week 27): Pre-dose9.10 ng/mLStandard Deviation 9.018
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 6 (Week 27): 1 to 6 hours Post-dose25.49 ng/mLStandard Deviation 22.247
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 12 (Week 53): Pre-dose21.03 ng/mLStandard Deviation 30.897
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 12 (Week 53): 1 to 6 hours Post-dose58.38 ng/mLStandard Deviation 65.148
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 18 (Week 79): Pre-dose7.13 ng/mLStandard Deviation 6.99
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 18 (Week 79): 4 to 8 hours Post-dose51.99 ng/mLStandard Deviation 44.656
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 1 (Week 5): 4 to 8 hours Post-dose66.83 ng/mLStandard Deviation 21.37
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 18 (Week 79): Pre-dose19.21 ng/mLStandard Deviation 13.602
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 12 (Week 53): Pre-dose16.74 ng/mLStandard Deviation 22.804
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 1 (Week 5): Pre-dose15.46 ng/mLStandard Deviation 10.463
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 0 (Week 3): Pre-dose15.77 ng/mLStandard Deviation 11.281
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 12 (Week 53): 1 to 6 hours Post-dose82.55 ng/mLStandard Deviation 56.084
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 3 (Week 13): 1 to 6 hours Post-dose75.15 ng/mLStandard Deviation 27.852
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 0 (Week 3): 1 to 6 hours Post-dose70.41 ng/mLStandard Deviation 37.681
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 6 (Week 27): Pre-dose12.03 ng/mLStandard Deviation 8.962
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 3 (Week 13): Pre-dose12.31 ng/mLStandard Deviation 7.007
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 18 (Week 79): 4 to 8 hours Post-dose70.43 ng/mLStandard Deviation 22.5
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Mean Concentration of Elenbecestat in PlasmaMonth 6 (Week 27): 1 to 6 hours Post-dose71.28 ng/mLStandard Deviation 39.114
Secondary

Core Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of Treatment

The measurement of the amyloid proteins Abeta(1-x) and Abeta(1-42), in CSF have been shown to be important biomarkers for alzheimer's disease.

Time frame: Month 1 (Week 5) and Month 18 (Week 79)

Population: The pharmacodynamic (PD) analysis set was the group of participants who had a baseline PD measurement and at least 1 post-dose PD measurement in the core phase. Here overall number of participants analyzed signifies participants who were evaluable for this outcome measure. Here number analyzed signifies participants who were evaluable for this outcome measure for specific categories and timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Core Phase: PlaceboCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-x) at Month 1 (Week 5)6.63 percent changeStandard Deviation 12.545
Core Phase: PlaceboCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-x) at Month 18 (Week 79)-1.81 percent change
Core Phase: PlaceboCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-42) at Month 1 (Week 5)-8.53 percent changeStandard Deviation 16.818
Core Phase: PlaceboCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-42) at Month 18 (Week 79)-6.50 percent changeStandard Deviation 24.809
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-x) at Month 18 (Week 79)-33.86 percent changeStandard Deviation 11.039
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-42) at Month 1 (Week 5)-9.43 percent changeStandard Deviation 22.798
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-42) at Month 18 (Week 79)-27.19 percent changeStandard Deviation 20.172
Core Phase: Elenbecestat 5 mg Then 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-x) at Month 1 (Week 5)-18.16 percent changeStandard Deviation 17.873
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-42) at Month 1 (Week 5)-20.69 percent changeStandard Deviation 15.488
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-x) at Month 18 (Week 79)-0.71 percent change
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-42) at Month 18 (Week 79)-24.02 percent changeStandard Deviation 19.949
Core Phase: Elenbecestat 15 mg Then 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-x) at Month 1 (Week 5)-36.43 percent changeStandard Deviation 16.026
Core Phase: Elenbecestat 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-42) at Month 18 (Week 79)-56.77 percent changeStandard Deviation 5.312
Core Phase: Elenbecestat 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-x) at Month 18 (Week 79)33.98 percent changeStandard Deviation 160.017
Core Phase: Elenbecestat 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-x) at Month 1 (Week 5)-56.66 percent changeStandard Deviation 14.431
Core Phase: Elenbecestat 50 mgCore Phase: Percent Change From Baseline in Cerebrospinal Fluid (CSF) Amyloid (A) Beta(1-x) and Abeta(1-42) After 1 Month and 18 Months of TreatmentPercent Change from Baseline in CSF Abeta(1-42) at Month 1 (Week 5)-38.89 percent changeStandard Deviation 16.378
Secondary

Extension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) Score

The FAQ has 10 items concerned with performing daily tasks necessary for independent living. The caregiver or informant provides performance ratings on 10 complex activities of daily living performed within the preceding 4 weeks. Score ranges from 0 (independent) to 30 (dependent). Lower score indicates that participant can live independently. Higher score indicates that participant cannot live independently.

Time frame: Baseline, at Month 3, at Month 6, at Month 9, at Month 12, at Month 15, at Month 18, at Month 21, at Month 24, at Month 28 and at Month 32

Population: The full analysis set was the group of participants who received at least 1 dose of study drug and had at least 1 post-dose efficacy assessment in the extension phase. Here number analyzed signifies participants who were evaluable for this outcome measure at given time points.

ArmMeasureGroupValue (MEAN)Dispersion
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreBaseline14.4 score on a scaleStandard Deviation 7.31
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreChange at Month 31.3 score on a scaleStandard Deviation 5.51
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreChange at Month 61.4 score on a scaleStandard Deviation 3.74
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreChange at Month 92.2 score on a scaleStandard Deviation 4.33
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreChange at Month 122.6 score on a scaleStandard Deviation 4.86
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreChange at Month 153.0 score on a scaleStandard Deviation 5.17
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreChange at Month 183.4 score on a scaleStandard Deviation 4.83
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreChange at Month 213.0 score on a scaleStandard Deviation 3.88
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreChange at Month 246.8 score on a scaleStandard Deviation 5.92
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreChange at Month 289.2 score on a scaleStandard Deviation 4.67
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Functional Assessment Questionnaire (FAQ) ScoreChange at Month 3215.0 score on a scale
Secondary

Extension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) Scores

MMSE is a 30-point scale that measures orientation to time and place, registration, immediate and delayed recall, attention, language, and drawing. Scores ranges from 0 (most impaired) to 30 (no impairment). Lower score indicates more impairment.

Time frame: Baseline, at Month 3, at Month 6, at Month 9, at Month 12, at Month 15, at Month 18, at Month 21, at Month 24, at Month 28 and at Month 32

Population: The full analysis set was the group of participants who received at least 1 dose of study drug and had at least 1 post-dose efficacy assessment in the extension phase. Here number analyzed signifies participants who were evaluable for this outcome measure at given time points.

ArmMeasureGroupValue (MEAN)Dispersion
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresBaseline21.5 score on a scaleStandard Deviation 5.67
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresChange at Month 3-0.6 score on a scaleStandard Deviation 2.32
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresChange at Month 6-0.6 score on a scaleStandard Deviation 2.39
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresChange at Month 9-0.9 score on a scaleStandard Deviation 2.89
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresChange at Month 12-1.4 score on a scaleStandard Deviation 2.43
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresChange at Month 15-1.8 score on a scaleStandard Deviation 2.78
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresChange at Month 18-1.7 score on a scaleStandard Deviation 3.01
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresChange at Month 21-2.5 score on a scaleStandard Deviation 3.27
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresChange at Month 24-3.9 score on a scaleStandard Deviation 4.46
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresChange at Month 28-6.4 score on a scaleStandard Deviation 4.28
Core Phase: PlaceboExtension Phase: Change From Extension Phase Baseline in the Mini-Mental State Examination (MMSE) ScoresChange at Month 32-2.0 score on a scale
Secondary

Extension Phase: Percent Change From Extension Phase Baseline in Left and Right Hippocampal Volume at Month 24

Left and right hippocampal volume is measured by vMRI. Volumetric imaging is a 3D technique where all the MRI signals are collected from the entire tissue sample and imaged as a whole entity, therefore providing a high signal to noise ratio. Left and right hippocampal volumes represent a summary measure in the left and right hippocampal regions.

Time frame: Month 24

Population: The full analysis set was the group of participants who received at least 1 dose of study drug and had at least 1 post-dose efficacy assessment in the extension phase. Here overall number of participants analyzed signifies participants who were evaluable for this outcome measure.

ArmMeasureGroupValue (MEAN)Dispersion
Core Phase: PlaceboExtension Phase: Percent Change From Extension Phase Baseline in Left and Right Hippocampal Volume at Month 24Percent Change at Month 24 (Left Hippocampal Volume)-4.31 percent changeStandard Deviation 2.065
Core Phase: PlaceboExtension Phase: Percent Change From Extension Phase Baseline in Left and Right Hippocampal Volume at Month 24Percent Change at Month 24 (Right Hippocampal Volume)-4.37 percent changeStandard Deviation 2.667
Secondary

Extension Phase: Percent Change From Extension Phase Baseline in Plasma Amyloid (A) Beta(1-x) Measurements at Months 12 and 24

The measurement of the amyloid protein Abeta(1-x), in plasma has been shown to be an important biomarker for alzheimer's disease.

Time frame: Month 12 and Month 24

Population: The PD analysis set was the group of participants who had at least 1 post-treatment PD measurement in the extension phase. Here overall number of participants analyzed signifies participants who were evaluable for this outcome measure. Here number analyzed signifies participants who were evaluable for this outcome measure at given time points.

ArmMeasureGroupValue (MEAN)Dispersion
Core Phase: PlaceboExtension Phase: Percent Change From Extension Phase Baseline in Plasma Amyloid (A) Beta(1-x) Measurements at Months 12 and 24Percent Change from Extension Phase Baseline in plasma Abeta(1-x) at Month 12-71.8 percent changeStandard Deviation 23.3
Core Phase: PlaceboExtension Phase: Percent Change From Extension Phase Baseline in Plasma Amyloid (A) Beta(1-x) Measurements at Months 12 and 24Percent Change from Extension Phase Baseline in plasma Abeta(1-x) at Month 24-71.1 percent changeStandard Deviation 31.2
Secondary

Extension Phase: Percent Change From Extension Phase Baseline in Total Hippocampal Volume at Month 24

Total hippocampal volume is measured by volumetric magnetic resonance imaging (vMRI). Volumetric imaging is a 3D technique where all the MRI signals are collected from the entire tissue sample and imaged as a whole entity, therefore providing a high signal to noise ratio. Total hippocampal volume is calculated by summing up right and left hippocampal volumes.

Time frame: Month 24

Population: The full analysis set was the group of participants who received at least 1 dose of study drug and had at least 1 post-dose efficacy assessment in the extension phase. Here overall number of participants analyzed signifies participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Core Phase: PlaceboExtension Phase: Percent Change From Extension Phase Baseline in Total Hippocampal Volume at Month 24-4.33 percent changeStandard Deviation 2.08
Secondary

Extension Phase: Percent Change From Extension Phase Baseline in Total Ventricular Volume at Month 24

Total Ventricular Volume is measured by vMRI. Volumetric imaging is a 3D technique where all the MRI signals are collected from the entire tissue sample and imaged as a whole entity, therefore providing a high signal to noise ratio. Total ventricular volume represents a summary measure of total including right and left lateral ventricles, third ventricle and fourth ventricle of brain.

Time frame: Month 24

Population: The full analysis set was the group of participants who received at least 1 dose of study drug and had at least 1 post-dose efficacy assessment in the extension phase. Here overall number of participants analyzed signifies participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Core Phase: PlaceboExtension Phase: Percent Change From Extension Phase Baseline in Total Ventricular Volume at Month 2415.18 percent changeStandard Deviation 8.544
Secondary

Extension Phase: Percent Change From Extension Phase Baseline in Whole Brain Volume at Month 24

Whole brain volume is measured by vMRI. Volumetric imaging is a 3D technique where all the MRI signals are collected from the entire tissue sample and imaged as a whole entity, therefore providing a high signal to noise ratio. Whole brain volume represents a summary measure of total brain parenchyma which includes the cerebrum, basal ganglia, diencephalon, and cerebellum.

Time frame: Month 24

Population: The full analysis set was the group of participants who received at least 1 dose of study drug and had at least 1 post-dose efficacy assessment in the extension phase. Here overall number of participants analyzed signifies participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Core Phase: PlaceboExtension Phase: Percent Change From Extension Phase Baseline in Whole Brain Volume at Month 24-3.26 percent changeStandard Deviation 1.555

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026