Study of Remternetug for Early Onset Alzheimer's Disease

This study is looking for people aged 18 and older who are at risk for, or have, a type of early onset Alzheimer's disease caused by a genetic mutation. It aims to see if Remternetug can prevent or slow the buildup of amyloid beta (Aβ) in the brain, which is a hallmark of Alzheimer's. You would receive Remternetug or a placebo (an inactive substance) as an injection under the skin every 12 weeks. The researchers will measure changes in Aβ levels and other markers related to Alzheimer's disease. The goal is to understand if this treatment can help slow down the disease's progression. The study is currently recruiting 280 participants.

Study design
This is an interventional study with 280 planned participants. It compares Remternetug to a matching placebo.
What's involved
You would undergo clinical assessments, cognitive testing, MRI and amyloid imaging, and analysis of cerebrospinal fluid (CSF) over a period of at least 208 weeks.
Compensation
Not stated in the trial record.
Follow-up
The study evaluates effects at Week 208 for both stages of the trial.

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NCT05552157

A Study of Potential Disease Modifying Treatments in Individuals at Risk for or With a Type of Early Onset AD Caused by a Genetic Mutation

Recruiting
PHASE2Ages 18+InterventionalTreatment
Washington University School of Medicine
~280 participants
Updated 2026-07-27 on ClinicalTrials.gov
What's tested:Remternetug (SC)Matching Placebo (Remternetug)

At a glance

Recruiting sites
24 of 37 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Stage 1: Evaluate the ability of study drug to prevent or slow the rate of Aβ accumulation compared with placebo in participants with mutations that cause DIAD
Measured over Baseline and Week 208
+1 more outcome measured
Alzheimers Disease
Dementia
Alzheimers Disease, Familial
37 sites across 35 states
California2
Italy2
Alabama1
Connecticut1
Georgia1
Illinois1
Indiana1
Missouri1
  • Eric M McDade, DO · STUDY_DIRECTOR · Washington University School of Medicine

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  • Stage 1: Evaluate the ability of study drug to prevent or slow the rate of Aβ accumulation compared with placebo in participants with mutations that cause DIADBaseline and Week 208

    Defined in each drug-specific appendix; will be an assessment of biomarkers of early-stage disease (e.g., amyloid PET, soluble amyloid, soluble phospho-tau) compared with baseline in each treatment group

  • Stage 2: Evaluate the effect of anti-amyloid treatment on downstream biomarkers of ADStage 2 Week 208

    If applicable, will be defined in each drug-specific appendix, and will be an assessment of the change in progression of biomarkers representing tau, neurodegenerative, and inflammatory pathobiological events in the disease cascade for temporally different periods of the pre-symptomatic phases of the disease.