Actively Recruiting

Phase 2
Phase 3
Age: 18Years +
All Genders
Healthy Volunteers
ID06647498

A Phase II/III Randomized, Double-Blind, Placebo-Controlled Trial of Remternetug for Primary Prevention in Dominantly Inherited Alzheimer's Disease

Led by Washington University School of Medicine · Updated on 2026-02-13

280

Participants Needed

35

Research Sites

21 weeks

Total Duration

On this page

Sponsors

W

Washington University School of Medicine

Lead Sponsor

A

Alzheimer's Association

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are studying remternetug, a potential treatment for asymptomatic individuals who carry genetic mutations causing dominantly inherited Alzheimer's disease (DIAD). The study aims to evaluate the drug's effect on amyloid beta accumulation, biomarkers of the disease, safety, and tolerability. This trial includes two stages: the first to see if remternetug prevents or reverses amyloid buildup, and the second to assess its impact on other Alzheimer's-related biomarkers compared to control groups. Participants will receive remternetug or a matching placebo by subcutaneous injection every 12 weeks during Stage 1. After completing Stage 1, an open-label phase will begin where all participants may receive remternetug. The study uses a randomized, double-blind, placebo-controlled design to carefully evaluate treatment effects over time. During the study, participants undergo brain scans, blood and spinal fluid tests, and cognitive assessments to monitor disease markers and subtle cognitive changes. Researchers will measure amyloid levels using PET imaging and analyze changes in cerebrospinal fluid biomarkers and brain MRI volumes. Safety and tolerability will be closely monitored, and participants are involved for up to 192 weeks with regular evaluations throughout the trial.

CONDITIONS

Brief Title

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

Who Can Participate

Age: 18Years +
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Provide written informed consent and have a study partner who agrees to participate
  • Be at least 18 years old
  • For people who can become pregnant, have a negative pregnancy test at screening and agree to use effective contraception during the study
  • Carry a mutation in APP, PSEN1, or PSEN2 gene linked to dominantly inherited Alzheimer's disease, or have a family mutation risk
  • Be 11 to 25 years before predicted age of cognitive symptom onset
  • Have normal cognitive status (Clinical Dementia Rating Sum of Boxes score 0)
  • Be fluent in a study-approved language and able to complete cognitive and clinical assessments
  • Have adequate vision and hearing for study assessments
  • Be on stable medication doses for at least 30 days prior to baseline visit except for episodic conditions
  • Agree not to donate blood during the study and for a defined period afterward
  • Be able and willing to complete all study procedures
Not Eligible

You will not qualify if you...

  • Have significant neurological or psychiatric diseases affecting cognition or study participation, including recent severe head trauma or major psychiatric disorders
  • Be at high risk for suicide or have current major depression
  • Have history of stroke or significant vascular risk factors affecting cognition
  • Have alcohol or substance use disorder within the past year
  • Have brain MRI abnormalities such as microhemorrhages or aneurysms
  • Have certain implanted medical devices that prevent MRI scans
  • Have uncontrolled cardiovascular, hepatic, or renal conditions
  • Have history of HIV, recent hepatitis B or untreated hepatitis C, or other CNS infections
  • Have severe drug allergies or hypersensitivity reactions
  • Have used immunosuppressive medications or chemotherapeutics recently
  • Have clinically significant thyroid or vitamin B12 abnormalities
  • Have unstable diabetes or morbid obesity affecting MRI
  • Use anticoagulants other than low-dose aspirin
  • Have prior exposure to amyloid-targeting monoclonal antibodies or investigational treatments recently
  • Have insufficient venous access or abnormal blood test results
  • Have history of high-risk cancer
  • Have any other medical conditions or factors that may interfere with study or increase risk
  • Have participated in another clinical study recently without approval
  • Have the "Dutch" APP E693Q mutation
  • Are investigator site personnel or employees related to the trial or their immediate families

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

Duration - Up to 192 weeks

Participants receive Remternetug or placebo by subcutaneous injection every 12 weeks to evaluate its effect on amyloid plaque and Alzheimer's disease progression.

Injections every 12 weeks with assessments at baseline, week 48, week 96, week 144, and week 192

Treatment

Duration - Duration following Stage 1 until study completion

Participants who complete Stage 1 may receive open-label Remternetug treatment to further evaluate effects on biomarkers and cognitive function.

Assessments at weeks 0, 48, 96, 144, and 192 during open-label treatment

Trial Site Locations

Total: 35 locations

1

University of Alabama in Birmingham

Birmingham, Alabama, United States, 35294

Actively Recruiting

2

University of California San Diego Medical Center

La Jolla, California, United States, 92037

Actively Recruiting

3

Yale University School of Medicine

New Haven, Connecticut, United States, 06510

Actively Recruiting

4

Emory University

Atlanta, Georgia, United States, 30329

Actively Recruiting

5

Advocate Lutheran General Hospital

Park Ridge, Illinois, United States, 60068

Actively Recruiting

6

Indiana University School of Medicine

Indianapolis, Indiana, United States, 46202

Actively Recruiting

7

Washington University in St. Louis

St Louis, Missouri, United States, 63110

Actively Recruiting

8

New York University Medical Center

New York, New York, United States, 10016

Actively Recruiting

9

University of Pittsburgh

Pittsburgh, Pennsylvania, United States, 15213

Actively Recruiting

10

Butler Hospital

Providence, Rhode Island, United States, 02096

Actively Recruiting

11

Kerwin Research and Memory Center

Dallas, Texas, United States, 75231

Actively Recruiting

12

University of Washington

Seattle, Washington, United States, 98195

Actively Recruiting

13

Instituto de Investigaciones Neurologicas Raul Carrea, FLENI

Ciudad Autonoma de Buenos Aire, Argentina, C1428AQK

Actively Recruiting

14

Neuroscience Research Australia

Randwick, New South Wales, Australia, 2031

Actively Recruiting

15

Alzheimer's Research Australia

Melbourne, Victoria, Australia, 3010

Not Yet Recruiting

16

UBC Hospital

Vancouver, British Columbia, Canada, V6T 2B5

Actively Recruiting

17

Sunnybrook Health Sciences Centre

Toronto, Ontario, Canada, M4N 3M5

Actively Recruiting

18

McGill Center for Studies in Aging

Verdun, Quebec, Canada, H4H 1R3

Not Yet Recruiting

19

CHU de Quebec - Hôpital de l' Enfant Jésus

Québec, Canada, G1J 1Z4

Actively Recruiting

20

Grupo de Neurociencias Sede de la Universidad de Antioquia

Medellín, Colombia

Actively Recruiting

21

CHU de Toulouse - Hôpital Purpan

Toulouse, Haute Garonne, France, 31059

Not Yet Recruiting

22

Hopital Roger Salengro - CHU Lille

Lille, Nord, France, 59037

Not Yet Recruiting

23

Groupe Hospitalier Pitie-Salpetriere

Paris, Paris, France, 69677

Not Yet Recruiting

24

Hopital Neurologique Pierre Wertheimer

Bron, Rhone, France, 69677

Not Yet Recruiting

25

CHU de Rouen - Hôpital Charles Nicolle

Rouen, Seine Maritime, France, 76031

Not Yet Recruiting

26

Universitaetsklinikum Tubingen

Tübingen, Baden-Wurttemberg, Germany, 72076

Not Yet Recruiting

27

LMU-Campus Grosshadern

Munich, Bavaria, Germany, 81377

Not Yet Recruiting

28

IRCCS Centro San Giovanni di Dio Fatebenefratelli

Brescia, Italy, 25125

Not Yet Recruiting

29

Azienda Ospedaliera Universitaria Careggi

Florence, Italy, 50134

Not Yet Recruiting

30

Instituto Nacional de Neurologia y Neurocirugia Manuel Velasco Suarez

Mexico City, Mexico City, Mexico, 14269

Not Yet Recruiting

31

Brain Research Center

Amsterdam, Netherlands, 1081 GM

Not Yet Recruiting

32

New Zealand Brain Research Institute

Christchurch, New Zealand, 8011

Not Yet Recruiting

33

University of Puerto Rico, School of Medicine

San Juan, Puerto Rico, 00936

Actively Recruiting

34

Hospital Clínic I Provincial de Barcelona

Barcelona, Spain, 8036

Not Yet Recruiting

35

The National Hospital for Neurology and Neurosurgery

London, Greater London, United Kingdom, WC1B 3BG

Actively Recruiting

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Research Team

J

Jamie Bartzel

E

Ellen Ziegemeier

How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

3

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Published Research Related To This Trial

Cerebrospinal fluid tau/beta-amyloid(42) ratio as a prediction of cognitive decline in nondemented older adults.

Anne M Fagan, Catherine M Roe, Chengjie Xiong...

https://pubmed.ncbi.nlm.nih.gov/17210801

Standardization of amyloid quantitation with florbetapir standardized uptake value ratios to the Centiloid scale.

Michael Navitsky, Abhinay D Joshi, Ian Kennedy...

https://pubmed.ncbi.nlm.nih.gov/30006100