Purpose

This study seeks to evaluate the efficacy and safety of ABBV-8E12 in participants with early Alzheimer's disease (AD).

Condition

Eligibility

Eligible Ages
Between 55 Years and 85 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Subject who meets the National Institute on Aging and the Alzheimer's Association (NIA-AA) clinical criteria for mild cognitive impairment or probable AD, and have: - Clinical Dementia Rating (CDR)-Global Score of 0.5 - Mini-Mental State Examination (MMSE) score of 22 to 30, inclusive - Repeatable Battery for the Assessment of Neuropsychological Status-Delayed Memory Index (RBANS - DMI) score of 85 or lower - Subject has a positive amyloid positron emission tomography (PET) scan. - Subject has a Modified Hachinski Ischemic Scale (MHIS) score of ≤ 4. - The subject has an identified, reliable, study partner (e.g., family member). - If using medications to treat symptoms related to AD, doses must be stable for at least 12 weeks prior to randomization.

Exclusion Criteria

  • Subject has any contraindications or inability to tolerate brain magnetic resonance imaging (MRI), PET scans or lumbar puncture. - Subject has evidence of any other clinically significant neurological disorder other than early AD. - In the opinion of the investigator, the subject has any clinically significant or uncontrolled medical or psychiatric illness, or has had an infection requiring medical intervention in the past 30 days. - Subject has had a myocardial infarction, unstable angina, stroke, transient ischemic attack or required intervention for any of these conditions within 6 months of Screening.

Study Design

Phase
Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

Arm Groups

ArmDescriptionAssigned Intervention
Placebo Comparator
Placebo
Placebo for ABBV-8E12 every 4 weeks for 96 weeks
  • Drug: placebo for ABBV-8E12
    placebo solution for intravenous (IV) infusion
Experimental
ABBV-8E12 300 mg
ABBV-8E12 300 mg every 4 weeks for 96 weeks
  • Drug: ABBV-8E12
    ABBV-8E12 solution for IV infusion
    Other names:
    • Tilavonemab
Experimental
ABBV-8E12 1000 mg
ABBV-8E12 1000 mg every 4 weeks for 96 weeks
  • Drug: ABBV-8E12
    ABBV-8E12 solution for IV infusion
    Other names:
    • Tilavonemab
Experimental
ABBV-8E12 2000 mg
ABBV-8E12 2000 mg every 4 weeks for 96 weeks
  • Drug: ABBV-8E12
    ABBV-8E12 solution for IV infusion
    Other names:
    • Tilavonemab

More Details

Status
Completed
Sponsor
AbbVie

Study Contact

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.