A Trial of Amlenetug (Lu AF82422) in Participants With Multiple System Atrophy (MSA)

NCT ID: NCT06706622

Last Updated: 2025-12-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

360 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-12-03

Study Completion Date

2029-10-25

Brief Summary

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The main goal of this trial is to evaluate the efficacy and safety of amlenetug for the treatment of participants with Multiple System Atrophy (MSA).

Detailed Description

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This study will consist of a screening period of 10 days up to 6 weeks, a 72-week placebo-controlled period (PCP), and will include a 72-week optional dose-blinded open-label treatment extension (OLE) period. Participants in the PCP will be randomized to amlenetug high dose, amlenetug low dose or placebo (1:1:1). All participants entering the OLE will receive amlenetug during the OLE. Participants will receive intravenous infusions approximately every 4 weeks during both the PCP and OLE.

Conditions

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Multiple System Atrophy

Keywords

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Lu AF82422 MSA Neurodegenerative Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Amlenetug Low Dose

Participants will receive amlenetug by intravenous infusion

Group Type EXPERIMENTAL

Amlenetug

Intervention Type DRUG

Solution for infusion

Amlenetug High Dose

Participants will receive amlenetug by intravenous infusion

Group Type EXPERIMENTAL

Amlenetug

Intervention Type DRUG

Solution for infusion

Placebo

Participants will receive commercially available saline solution for infusion

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Commercially available saline solution

Interventions

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Amlenetug

Solution for infusion

Intervention Type DRUG

Placebo

Commercially available saline solution

Intervention Type DRUG

Other Intervention Names

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Lu AF82422

Eligibility Criteria

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Inclusion Criteria

* The participant has a diagnosis of clinically established multiple system atrophy parkinsonian type (MSA-P) or multiple system atrophy cerebellar type (MSA-C), or clinically probable MSA-P or MSA-C, according to the 2022 Movement Disorders Society (MDS) criteria for the diagnosis of MSA at the Screening Visit.
* The participant had onset of motor MSA symptoms (that is, parkinsonian and/or cerebellar) within 5 years prior to the Screening Visit in the judgement of the investigator.
* The participant has an anticipated survival of \>3 years, in the opinion of the investigator, at the Screening Visit.
* The participant has suitable peripheral venous access for investigational medicinal product (IMP) administration and blood sampling.
* The participant has an UMSARS Part I score ≤16 (omitting item 11 on sexual function) at the Screening Visit.

Exclusion Criteria

* The participant has previously been dosed with amlenetug.
* The participant has taken any active IMP within 3 months or 5 half lives of that product, whichever is longer, prior to the first dose of IMP.
* The participant has 2 or more first degree relatives with a history of MSA.
* The participant, if of MSA-P subtype, has unexplained anosmia (not explained by other common causes such as allergic rhinitis or smoking, nasal structural lesions, or nasal surgery) on olfactory testing at the Screening Visit.
* The participant has evidence (clinically or on magnetic resonance imaging (MRI)) and/or history of any clinically significant disease or condition other than MSA, that is, in the investigator's opinion, likely to affect CNS functioning, e.g., serious neurological disorder, other intracranial or systemic disease.
* The participant has a current diagnosis of movement disorders that could mimic MSA, e.g., Parkinson's disease, dementia with Lewy bodies, essential tremor, progressive supranuclear palsy, spinocerebellar ataxia, spastic paraparesis, corticobasal degeneration, or vascular, pharmacological, or post-encephalitic parkinsonism, per investigator discretion. Participants who have previously been incorrectly diagnosed with Parkinson's disease will not be excluded.
Minimum Eligible Age

40 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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H. Lundbeck A/S

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Email contact via H. Lundbeck A/S

Role: STUDY_DIRECTOR

H. Lundbeck A/S

Locations

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Mayo Clinic

Scottsdale, Arizona, United States

Site Status RECRUITING

University of Arkansas for Medical Sciences

Little Rock, Arkansas, United States

Site Status RECRUITING

University of California, San Francisco Neurosciences Clinical Research Unit

San Francisco, California, United States

Site Status RECRUITING

CenExel Rocky Mountain Clinical Research, LLC

Englewood, Colorado, United States

Site Status RECRUITING

Yale New Haven Health

North Haven, Connecticut, United States

Site Status RECRUITING

Parkinson's Disease And Movement Disorder Center Of Boca Raton

Boca Raton, Florida, United States

Site Status RECRUITING

University of Florida Norman Fixel Institute for Neurological Diseases

Gainesville, Florida, United States

Site Status RECRUITING

Indiana Health University

Indianapolis, Indiana, United States

Site Status RECRUITING

Johns Hopkins University School of Medicine

Baltimore, Maryland, United States

Site Status RECRUITING

Brigham and Women's Hospital

Boston, Massachusetts, United States

Site Status RECRUITING

Beth Israel Deaconess Medical Center

Boston, Massachusetts, United States

Site Status RECRUITING

QUEST Research Institute

Farmington Hills, Michigan, United States

Site Status RECRUITING

Mayo Clinic

Rochester, Minnesota, United States

Site Status RECRUITING

University Nebraska Medical Center

Omaha, Nebraska, United States

Site Status RECRUITING

NYU Medical Center - Dysautonomia center

New York, New York, United States

Site Status RECRUITING

Columbia University Medical Center - The Neurological Institute of New York

New York, New York, United States

Site Status RECRUITING

Cleveland Clinic - Neurological Institute

Cleveland, Ohio, United States

Site Status RECRUITING

University of Pennsylvania

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

University Of Pittsburgh

Pittsburgh, Pennsylvania, United States

Site Status RECRUITING

Vanderbilt University Medical Center-Cognitive and Movement Disorders Group

Nashville, Tennessee, United States

Site Status RECRUITING

University of Texas Southwestern Medical Center ¿ Multiple System Atrophy Clinic

Dallas, Texas, United States

Site Status RECRUITING

Baylor College Of Medicine

Houston, Texas, United States

Site Status RECRUITING

Inland Northwest Research

Spokane, Washington, United States

Site Status RECRUITING

Liverpool Hospital - South Western Sydney Local Health District

Liverpool, New South Wales, Australia

Site Status RECRUITING

Westmead Hospital

Westmead, New South Wales, Australia

Site Status RECRUITING

Gold Coast Hospital

Southport, Queensland, Australia

Site Status RECRUITING

The Alfred Hospital

Melbourne, Victoria, Australia

Site Status RECRUITING

The Ottawa Hospital Research Institute

Ottawa, Ontario, Canada

Site Status RECRUITING

Toronto Western Hospital (TWH)

Toronto, Ontario, Canada

Site Status RECRUITING

Centre Hospitalier Universitaire (CHU) de Bordeaux - Groupe Hospitalier Pellegrin

Bordeaux, , France

Site Status RECRUITING

Centre Hospitalier Regional Universitaire de Lille - Hopital Roger Salengro

Lille, , France

Site Status RECRUITING

CHU - Hospital de la Timone

Marseille, , France

Site Status RECRUITING

Centre Hospitalier Regional Universitaire (CHRU) Montpellier - Hopital Saint-Eloi Guy de Chauliac

Montpellier, , France

Site Status RECRUITING

Chu De La Pitie-Salpetriere

Paris, , France

Site Status RECRUITING

Unite d'investigation clinique de Neurologie Rez-de-jardin-Bloc Hopital CHU Pontchaillou

Rennes, , France

Site Status RECRUITING

Centre Hospitalier Universitaire de Toulouse - Hopital Purpan

Toulouse, , France

Site Status RECRUITING

Movement Disorders Clinic

Beelitz-Heilstätten, , Germany

Site Status RECRUITING

Universitaetsklinikum Erlangen

Erlangen, , Germany

Site Status RECRUITING

Curiositas-ad-sanum Beratungs-und Studien GmbH

Haag in Oberbayern, , Germany

Site Status RECRUITING

Ludwig-Maximilians-Universitat Munchen Klinikum der Universitat - Grosshadern

München, , Germany

Site Status RECRUITING

University Hospital Tuebingen

Tübingen, , Germany

Site Status RECRUITING

IRCCS Institute of Neurological Sciences of Bologna- Universita di Bologna

Bologna, , Italy

Site Status RECRUITING

Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico

Milan, , Italy

Site Status RECRUITING

Fondazione IRCCS Istituto Neurologico Carlo Besta

Milan, , Italy

Site Status RECRUITING

AOU Universita della Campania Luigi Vanvitelli

Napoli, , Italy

Site Status RECRUITING

A.O.U. Pisana-Ospedale S. Chiara

Pisa, , Italy

Site Status RECRUITING

Universita Di Salerno Aou San Giovanni Di Dio E Ruggi D'Aragona

Salerno, , Italy

Site Status RECRUITING

National Hospital Organization Higashinagoya National Hospital

Nagoya, Aichi-ken, Japan

Site Status RECRUITING

Fujita Health University Hospital

Toyoake, Aichi-ken, Japan

Site Status RECRUITING

Gifu University Hospital

Gifu, Gifu, Japan

Site Status RECRUITING

Hokkaido University Hospital

Sapporo, Hokkaido, Japan

Site Status RECRUITING

National Hospital Organization Sendai Nishitaga Hospital

Sendai, Miyagi, Japan

Site Status RECRUITING

Juntendo University Hospital

Bunkyo-ku, Tokyo, Japan

Site Status RECRUITING

National Center Hospital, National Center of Neurology and Psychiatry

Kodaira-shi, Tokyo, Japan

Site Status RECRUITING

Tottori University Hospital

Yonago-shi, Tottori, Japan

Site Status RECRUITING

Saitama Medical University Hospital

Iruma-gun, , Japan

Site Status RECRUITING

Niigata University Medical And Dental Hospital

Niigata, , Japan

Site Status RECRUITING

Keio University Hospital

Tokyo, , Japan

Site Status RECRUITING

Kyung Hee University Hospital

Seoul, , South Korea

Site Status RECRUITING

Severance Hospital, Yonsei University Health System

Seoul, , South Korea

Site Status RECRUITING

Samsung Medical Center

Seoul, , South Korea

Site Status RECRUITING

Centro de Esclerosis Mutiple de Cataluna (Cemcat) - Barcelona, ¿¿Hospital Universitari Vall d'Hebron

Barcelona, , Spain

Site Status RECRUITING

Hospital Clinic de Barcelona - Institut Clinic de Neurociencies (ICN)

Barcelona, , Spain

Site Status RECRUITING

Hospital de la Santa Creu i Sant Pau

Barcelona (Spain), , Spain

Site Status RECRUITING

Hospital Universitario de La Princesa

Madrid, , Spain

Site Status RECRUITING

Hospital Universitario Virgen del Rocio (HUVR) - Instituto de Biomedicina de Sevilla (IBIS)

Seville, , Spain

Site Status RECRUITING

Universitat de Valencia - Hospital Universitari i Politecnic La Fe de Valencia (Hospital La Fe Bu...

Valencia, , Spain

Site Status RECRUITING

Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust

Salford, Greater Manchester, United Kingdom

Site Status RECRUITING

Nuffield Oxford University and Oxford University Hospital NHS Foundation Trusts-John Radcliffe Ho...

Oxford, Oxfordshire, United Kingdom

Site Status RECRUITING

Queen Elizabeth University Hospital - NHS Greater Glasgow & Clyde

Glasgow, Scotland, United Kingdom

Site Status RECRUITING

Clinical Ageing Reseach Unit

Newcastle upon Tyne, Tyne and Wear, United Kingdom

Site Status RECRUITING

Royal Devon and Exeter Hospital - Royal Devon University Healthcare NHS Foundation Trust

Exeter, , United Kingdom

Site Status RECRUITING

The National Hospital for Neurology and Neurosurgery

London, , United Kingdom

Site Status RECRUITING

Countries

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United States Australia Canada France Germany Italy Japan South Korea Spain United Kingdom

Central Contacts

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Email contact via H. Lundbeck A/S

Role: CONTACT

Phone: +45 36301311

Email: [email protected]

Other Identifiers

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2024-517169-18-00

Identifier Type: REGISTRY

Identifier Source: secondary_id

20432A

Identifier Type: -

Identifier Source: org_study_id