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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/ct2/show/NCT04468659




Registration number
NCT04468659
Ethics application status
Date submitted
9/07/2020
Date registered
13/07/2020
Date last updated
8/02/2024

Titles & IDs
Public title
AHEAD 3-45 Study: A Study to Evaluate Efficacy and Safety of Treatment With Lecanemab in Participants With Preclinical Alzheimer's Disease and Elevated Amyloid and Also in Participants With Early Preclinical Alzheimer's Disease and Intermediate Amyloid
Scientific title
AHEAD 3-45 Study: A Placebo-Controlled, Double-Blind, Parallel-Treatment Arm, 216 Week Study With an Extension Phase to Evaluate Efficacy and Safety of Treatment With BAN2401 in Subjects With Preclinical Alzheimer's Disease and Elevated Amyloid (A45 Trial) and in Subjects With Early Preclinical Alzheimer's Disease and Intermediate Amyloid (A3 Trial)
Secondary ID [1] 0 0
R01AG054029
Secondary ID [2] 0 0
BAN2401-G000-303
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Preclinical Alzheimer's Disease 0 0
Early Preclinical Alzheimer's Disease 0 0
Condition category
Condition code
Neurological 0 0 0 0
Alzheimer's disease
Neurological 0 0 0 0
Dementias
Metabolic and Endocrine 0 0 0 0
Metabolic disorders
Metabolic and Endocrine 0 0 0 0
Other metabolic disorders
Human Genetics and Inherited Disorders 0 0 0 0
Other human genetics and inherited disorders

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - Lecanemab
Treatment: Drugs - Placebo

Experimental: A45 Trial: Lecanemab 5 mg/kg + 10 mg/kg (Core Study) - Participants will receive lecanemab 5 milligram per kilogram (mg/kg), administered as intravenous (IV) infusion, every two weeks from Week 0 to 6, then 10 mg/kg, administered as IV infusion, every two weeks from Week 8 to 94, and 10 mg/kg, administered as IV infusion, every four weeks from Week 96 to 216 in core study.

Placebo Comparator: A45 Trial: Placebo (Core Study) - Participants will receive placebo (0.9 percent [%] sodium chloride solution), administered as IV infusion, every two weeks from Week 0 to 94, then every four weeks from Week 96 to 216.

Experimental: A3 Trial: Lecanemab 5 mg/kg + 10 mg/kg (Core Study) - Participants will receive lecanemab 5 mg/kg, administered as IV infusion, every four weeks from Week 0 to 4, then 10 mg/kg, administered as IV infusion, every four weeks from Week 8 to 216 in core study.

Placebo Comparator: A3 Trial: Placebo (Core Study) - Participants will receive placebo (0.9% sodium chloride solution), administered as IV infusion, every four weeks from Week 0 to 216.

Experimental: A45 Trial: Lecanemab 10 mg/kg (Extension Phase) - Participants progressing to early Alzheimer's disease (EAD) during the core study (progressors) will receive lecanemab 10 mg/kg, administered as IV infusion, every two weeks after transition to the extension phase through to at least Week 216 from randomization in the core study. Participants completing the core study (completers) will enter extension phase and will receive lecanemab 10 mg/kg, administered as IV infusion, every two weeks for up to Week 312. Eligible participants receiving placebo in core study will continue to extension phase.

Experimental: A3 Trial: Lecanemab 10 mg/kg (Extension Phase) - Participants progressing to EAD during the core study (progressors) will receive lecanemab 10 mg/kg, administered as IV infusion, every two weeks after transition to the extension phase through to at least Week 216 from randomization in the core study. Participants completing the core study (completers) will enter extension phase and will receive lecanemab 10 mg/kg, administered as IV infusion, every two weeks for up to Week 312. Eligible participants receiving placebo in core study will continue to extension phase.


Treatment: Drugs: Lecanemab
IV infusion.

Treatment: Drugs: Placebo
IV infusion.
Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
A45 Trial: Change From Baseline in Preclinical Alzheimer Cognitive Composite 5 (PACC5) Score at Week 216
Timepoint [1] 0 0
Baseline, Week 216
Primary outcome [2] 0 0
A3 Trial: Change From Baseline in Amyloid Positron Emission Tomography (PET) Standard Uptake Value Ratio (SUVr) at Week 216
Timepoint [2] 0 0
Baseline, Week 216
Secondary outcome [1] 0 0
A45 Trial: Change From Baseline in Amyloid Positron Emission Tomography (PET) Standard Uptake Value Ratio (SUVr) at Weeks 96 and 216
Timepoint [1] 0 0
Baseline, Week 96, Week 216
Secondary outcome [2] 0 0
A45 Trial: Change From Baseline in tau Positron Emission Tomography (PET) Standard Uptake Value Ratio (SUVr) at Weeks 96 and 216
Timepoint [2] 0 0
Baseline, Week 96, Week 216
Secondary outcome [3] 0 0
A45 Trial: Change From Baseline in Cognitive Function Index (CFI) at Week 216
Timepoint [3] 0 0
Baseline, Week 216
Secondary outcome [4] 0 0
A3 Trial: Change From Baseline in tau Positron Emission Tomography (PET) Standard Uptake Value Ratio (SUVr) at Week 216
Timepoint [4] 0 0
Baseline, Week 216

Eligibility
Key inclusion criteria
Inclusion criteria:

Participants must meet all of the following criteria to be included in this study:

1. Male or female, age 55 to 80 years inclusive at the time of informed consent, with a
plasma biomarker result that is predictive of intermediate or elevated brain amyloid
at Screening or known before Screening to have elevated or intermediate amyloid
according to previous PET, cerebrospinal fluid (CSF), or plasma testing

• Those 55 to 64 must have 1 of the following additional risk factors, given the
relatively low rates of amyloid positivity less than (<) 65 years, before screening:

- First degree relative diagnosed with dementia onset before age 75, or

- Known to possess at least 1 apolipoprotein E4 variant (APOE4) allele, or

- Known before screening to have elevated brain amyloid according to previous
plasma biomarker results, PET imaging, or CSF testing

2. Global Clinical Dementia Rating (CDR) score of 0 at screening

3. Mini Mental State Examination score greater than or equal to (>=) 27 (with educational
adjustments) at screening.

4. Wechsler Memory Scale-Revised Logical Memory subscale II (WMS-R LM II) score at
screening of >=6

5. A45 Trial: Elevated brain amyloid pathology by amyloid PET: defined as approximately
greater than (>) 40 Centiloids on screening scan A3 Trial: Intermediate levels of
brain amyloid pathology by amyloid PET: defined as approximately 20 to 40 Centiloids
on screening scan

6. Has a study partner that is willing to participate as a source of information and has
approximately weekly contact with the participant (contact can be in-person, via
telephone or electronic communication). The study partner must have sufficient contact
such that the investigator feels the study partner can provide meaningful information
about the participant's daily function

7. Provide written (or electronic, if allowed per country-specific regulations) informed
consent

8. Willing and able to comply with all aspects of the protocol

For extension phase :

1. Completed the Core Study, or meet the following progression criteria during the Core
Study:

- Two consecutive CDR visits with Global Scores > zero when measured at least 6
months apart within the Core Study

- The principal investigator's confirmation that the participant has clinically
declined consistent progression to EAD

2. Must continue to have a study partner who is willing and able to provide follow-up
information on the participant throughout the course of the Extension Phase. The study
partner must provide separate written informed consent for the Extension Phase. Study
partners must continue to have sufficient contact such that the investigator feels the
study partner can provide meaningful information about the participant's daily
functions

3. Provide written informed consent for the Extension Phase. If a participant lacks
capacity to consent in the investigator's opinion, the participant's assent should be
obtained, if required and in accordance with local laws, regulations, and customs,
plus the written informed consent of a legal representative (capacity to consent and
the definition of a legal representative should be determined in accordance with
applicable local laws and regulations). In countries where local laws, regulations,
and customs do not permit participants who lack capacity to consent to participate in
this study (example, Spain), they will not be enrolled

4. Willing and able to comply with all aspects of the protocol
Minimum age
55 Years
Maximum age
80 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
Exclusion criteria:

Participants who meet any of the following criteria will be excluded from this study:

1. Females who are breastfeeding or pregnant at screening or baseline

2. Females of childbearing potential who:

• Within 28 days before study entry, did not use a highly effective method of
contraception For sites outside of Europe, it is permissible that if a highly
effective method of contraception is not appropriate or acceptable to the participant,
then the participant must agree to use a medically acceptable method of contraception

3. History of transient ischemic attacks (TIA), stroke, or seizures within 12 months of
screening

4. Current or history within the past 2 years of psychiatric diagnosis or symptoms that,
in the opinion of the investigator, could interfere with study procedures

5. Contraindications to 3 Tesla magnetic resonance imaging (MRI) scanning, including
cardiac pacemaker/defibrillator, ferromagnetic metal implants (example, in-skull and
cardiac devices other than those approved as safe for use in MRI scanners), or exhibit
other significant pathological findings on brain MRI at Screening

6. Hypersensitivity to any monoclonal antibody treatment

7. Any immunological disease which is not adequately controlled, or which requires
treatment with immunoglobulins, systemic monoclonal antibodies (or derivatives of
monoclonal antibodies), systemic immunosuppressants, or plasmapheresis during the
study

8. Bleeding disorder that is not under adequate control (including a platelet count
<50,000 or international normalized ratio [INR] >1.5) at screening

9. Results of laboratory tests conducted during screening that are outside the following
limits:

- Thyroid stimulating hormone (TSH) above normal range

- Abnormally low (below lower limit of normal [LLN]) serum vitamin B12 levels for
the testing laboratory (if participant is taking vitamin B12 injections, level
should be at or above the LLN for the testing laboratory). A low vitamin B12 is
exclusionary, unless the required follow-up labs (homocysteine and methylmalonic
acid [MMA]) indicate that it is not physiologically significant

10. Known to be human immunodeficiency virus (HIV) positive

11. Any other clinically significant abnormalities that in the opinion of the investigator
require further investigation or treatment or may interfere with study procedures or
safety

12. Malignant neoplasms within 3 years of screening (except for basal or squamous cell
carcinoma in situ of the skin, or localized prostate cancer in male participants with
treatment cycles completed at least 6 months before screening). Participants who had
malignant neoplasms but who have had at least 3 years of documented uninterrupted
remission before screening need not be excluded

13. Answer "yes" to Columbia-Suicide Severity Rating Scale (C-SSRS) suicidal ideation Type
4 or 5, or any suicidal behavior assessment within 6 months before screening, at
screening, or at baseline, or has been hospitalized or treated for suicidal behavior
in the past 5 years before screening

14. Known or suspected history of drug or alcohol abuse or dependence within 2 years
before screening or a positive urine drug test at screening. Participants who test
positive for benzodiazepines, opioids, or tetrahydrocannabinol (THC) in urine drug
testing need not be excluded unless in the clinical opinion of the investigator this
is due to potential drug abuse

15. Taking prohibited medications

16. Participation in a clinical study involving:

- Any anti-amyloid plaque lowering immunotherapy (example, therapeutic monoclonal
antibody or active anti-amyloid vaccine) at any time, unless it can be documented
that the participant was randomized to placebo or never received study drug

- Any immunoglobulin therapy, or vaccine within 6 months before Screening, unless
it can be documented that the participant was randomized to placebo or never
received study drug

- Lecanemab

- Any new chemical entities or investigational drug for AD within 6 months before
randomization unless it can be documented that the participant received only
placebo

- Any other investigational medication or device study in the 8 weeks or 5
half-lives (whichever is longer) of the medication before randomization unless it
can be documented that the participant was in a placebo treatment arm

17. Planned surgery during the pre-randomization phase or within 3 months of
randomization, which requires general anesthesia

For extension phase:

1. Discontinued from the Core Study or from study treatment

2. Under study drug interruption due to ARIA or other AE at the time of transition to the
extension phase

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
14/07/2020
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
15/02/2029
Actual
Sample size
Target
1400
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
NSW,SA,VIC,WA
Recruitment hospital [1] 0 0
St Vincent's Hospital Sydney - Darlinghurst
Recruitment hospital [2] 0 0
Calvary Mater Newcastle - Waratah
Recruitment hospital [3] 0 0
Westmead Hospital - Westmead
Recruitment hospital [4] 0 0
CALHN Memory Trials - Adelaide
Recruitment hospital [5] 0 0
Austin Hospital - Medical and Cognitive Research Unit - Ivanhoe
Recruitment hospital [6] 0 0
Australian Alzheimer's Research Foundation - Nedlands
Recruitment postcode(s) [1] 0 0
- Darlinghurst
Recruitment postcode(s) [2] 0 0
- Waratah
Recruitment postcode(s) [3] 0 0
- Westmead
Recruitment postcode(s) [4] 0 0
- Adelaide
Recruitment postcode(s) [5] 0 0
- Ivanhoe
Recruitment postcode(s) [6] 0 0
6009 - Nedlands
Recruitment outside Australia
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United States of America
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Alabama
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Arizona
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California
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Connecticut
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District of Columbia
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Florida
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Georgia
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Illinois
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Indiana
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Kansas
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Kentucky
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Maryland
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Massachusetts
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Michigan
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Minnesota
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Missouri
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Nevada
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New Jersey
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New York
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North Carolina
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Ohio
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Oklahoma
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Oregon
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Texas
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Virginia
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Washington
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Wisconsin
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Canada
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Nova Scotia
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Canada
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Ontario
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Canada
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Quebec
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Japan
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Aichi
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Japan
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Fukuoka
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Hyogo
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Japan
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Kanagawa
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Kyoto
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Miyagi
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Japan
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Osaka
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Japan
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Tokyo
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Netherlands
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Amsterdam
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Singapore
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Singapore
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Spain
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Barcelona
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Spain
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Madrid
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Spain
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San Sebastian
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Santander
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Sweden
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Malmo
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Molndal
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Sweden
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Stockholm
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United Kingdom
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Bristol
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Glasgow
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United Kingdom
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London

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Name
Eisai Inc.
Address
Country
Other collaborator category [1] 0 0
Other
Name [1] 0 0
Alzheimer's Clinical Trials Consortium
Address [1] 0 0
Country [1] 0 0
Other collaborator category [2] 0 0
Commercial sector/Industry
Name [2] 0 0
Biogen
Address [2] 0 0
Country [2] 0 0
Other collaborator category [3] 0 0
Government body
Name [3] 0 0
National Institute on Aging (NIA)
Address [3] 0 0
Country [3] 0 0

Ethics approval
Ethics application status

Summary
Brief summary
The primary purpose of this study is to determine whether treatment with lecanemab is
superior to placebo on change from baseline of the Preclinical Alzheimer Cognitive Composite
5 (PACC5) at 216 weeks of treatment (A45 Trial) and to determine whether treatment with
lecanemab is superior to placebo in reducing brain amyloid accumulation as measured by
amyloid positron emission tomography (PET) at 216 weeks of treatment (A3 Trial). This study
will also evaluate the long-term safety and tolerability of lecanemab in participants
enrolled in the Extension Phase.
Trial website
https://clinicaltrials.gov/ct2/show/NCT04468659
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Eisai Medical Information
Address 0 0
Country 0 0
Phone 0 0
+1-888-274-2378
Fax 0 0
Email 0 0
[email protected]
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/ct2/show/NCT04468659