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NCT06680830PHASE2Recruiting

A Phase 2 Study and Open-Label Extension of NEU-411 in Companion Diagnostic-Positive Participants With Early Parkinson's Disease

Neuron23 Inc.

Start Date

1/17/2025

Completion Date

6/1/2028

Summary

The goal of this Phase 2 clinical trial is to investigate the efficacy and safety of NEU-411 in men and women aged 40-80 years with early Parkinson's Disease (PD) who have predicted elevations in the activity of the "leucine-rich repeat kinase 2" ("LRRK2" for short) pathway based on their genetic profile. A DNA test will be used to identify the "LRRK2-driven" population with predicted elevation in the LRRK2 pathway.

Detailed Description

NEU-411-PD201 is a Phase 2, randomized, placebo-controlled, proof-of-concept study and open-label extension (OLE) in participants with early Parkinson's Disease (PD) who have LRRK2-driven PD as measured by an investigational companion diagnostic genetic test (CDx). The study will evaluate the efficacy, safety, pharmacokinetics, and pharmacodynamics of NEU-411, an orally-administered, potent, selective, bioavailable, highly permeable, brain penetrant, small molecule inhibitor of LRRK2 activity as compared to placebo. After participants are screened for inclusion in the randomized, placebo-controlled portion of the study, approximately 150 participants will be randomized in a 1:1 allocation to NEU-411 30 mg once per day or placebo for a 52-week treatment period with a safety follow-up visit within 2 weeks after the last treatment visit. Eligible participants may enroll in the OLE and receive treatment for an additional 26 weeks.

Eligibility Criteria

Age Range: 40 years to 80 years

Inclusion Criteria: 1. Aged 40-80 years at time of screening, inclusive 2. Diagnosis of clinically established or clinically probable Parkinson's Disease (PD) 3. LRRK2-driven PD using the investigational companion diagnostic genetic test (CDx) 4. Modified Hoehn and Yahr (mH\&Y) of 1 to 2.5 Exclusion Criteria: 1. Secondary or atypical parkinsonian syndromes 2. Uncontrolled diabetes mellitus with hemoglobin A1c (HbA1c) \>8% 3. Other significant medical conditions (as determined by medical history, examination, or clinical investigations at screening) Additional inclusion and exclusion criteria for the RCP and OLE are outlined in the full study protocol.

Interventions

DRUG

NEU-411

OTHER

Placebo

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Conditions

Parkinson DiseaseParkinsonIdiopathic Parkinson DiseaseEarly Parkinson Disease (Early PD)Parkinson Disease, Idiopathic

Locations

Banner Sun Health Research Institute

Sun City, Arizona 85351

United States

University of Arkansas

Little Rock, Arkansas 72205

United States

Neuro-Pain Medical Center

Fresno, California 93710

United States

University of California, Irvine

Irvine, California 92697

United States

University of California, Los Angeles

Los Angeles, California 90095

United States

Esperanza Clinical

Murrieta, California 92562

United States

Parkinson's Research Centers of America - Palo Alto

Palo Alto, California 94301

United States

Sutter Neuroscience Institute

Sacramento, California 95816

United States

University of Colorado - Anschutz Medical Campus

Aurora, Colorado 80045

United States

Parkinson's Disease and Movement Disorders Center of Boca Raton

Boca Raton, Florida 33486

United States

University of Florida

Gainesville, Florida 32608

United States

Neurology One

Orlando, Florida 32825

United States

USF Parkinson's & Movement Disorders Clinic

Tampa, Florida 33613

United States

Emory University

Atlanta, Georgia 30329

United States

Augusta University

Augusta, Georgia 30912

United States

Northwestern Medical Group, Department of Neurology

Chicago, Illinois 60611

United States

University of Kansas Medical Center

Kansas City, Kansas 66160

United States

University of Kentucky

Lexington, Kentucky 40536

United States

Ochsner Clinic Foundation

New Orleans, Louisiana 70121

United States

University of Maryland

Baltimore, Maryland 21201

United States

Beth Israel Deaconess Medical Center

Boston, Massachusetts 02215

United States

Quest Research Institute

Farmington Hills, Michigan 48334

United States

Struthers Parkinson Center

Golden Valley, Minnesota 55427

United States

Cleveland Clinic

Las Vegas, Nevada 89106

United States

University of New Mexico

Albuquerque, New Mexico 87106

United States

Northwell Health

Manhasset, New York 11030

United States

Icahn School of Medicine at Mount Sinai/Mount Sinai West

New York, New York 10019

United States

Columbia University

New York, New York 10032

United States

University of Rochester

Rochester, New York 14618

United States

University of North Carolina - Chapel Hill

Chapel Hill, North Carolina 27599

United States

The Ohio State University

Columbus, Ohio 43210

United States

The Movement Disorder Clinic of Oklahoma

Tulsa, Oklahoma 74136

United States

Oregon Health & Science University (OHSU)

Portland, Oregon 97239

United States

Thomas Jefferson University Hospital

Philadelphia, Pennsylvania 19107

United States

Medical University of South Carolina

Charleston, South Carolina 29425

United States

Vanderbilt University

Nashville, Tennessee 37232

United States

Neurology Consultants of Dallas PA

Dallas, Texas 75243

United States

Baylor College of Medicine

Houston, Texas 77030

United States

The University of Texas Health Science Center at Houston

Houston, Texas 77030

United States

Central Texas Neurology Consultants

Round Rock, Texas 78681

United States

University of Utah Movement Division

Salt Lake City, Utah 84108

United States

University of Virginia

Charlottesville, Virginia 22903

United States

EvergreenHealth

Kirkland, Washington 98034

United States

Inland Northwest Research

Spokane, Washington 99202

United States

Medical College of Wisconsin

Milwaukee, Wisconsin 53226

United States

Rambam Medical Center

Haifa, 3109601

Israel

Shaare Zedek Medical Center

Jerusalem, 9103102

Israel

Sheba Medical Center

Ramat Gan, 5262000

Israel

Tel Aviv Medical Center

Tel Aviv, 6423906

Israel

IRCCS Ospedale San Raffaele (HSR) - Dipartimento Di Neurologia

Milan, 20132

Italy

Universita Degli Studi Della Campania "Luigi Vanvitelli" - Azienda Ospedaliera Universitaria

Naples, 80138

Italy

Universita Degli Studi Di Padova - Azienda Ospedaliera Di Padova - Clinica Neurologica

Padua, 35128

Italy

Azienda Ospedaliero Universitaria Pisana - Stabilimento Ospedaliero Di Santa Chiara

Pisa, 56126

Italy

Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) - San Raffaele Pisana

Rome, 00166

Italy

Fondazione Policilinico Universitario A Gemelli IRCCS

Rome, 00168

Italy

Centrum Medyczne Neuromed

Bydgoszcz, 85-163

Poland

NZOZ Wielospecjalistyczna Poradnia Lekarska Synapsis Lech Szczechowski

Katowice, 32-600

Poland

Pro Life Medica Sp. z o. o. ETA Lublin

Lublin, 20-412

Poland

Insula Badania Sp. Z o.o.

Warsaw, 02-699

Poland

Policlinica Gipuzkoa - Centro de Investigacion Parkinson (CIP)

San Sebastián, Donostia 20014

Spain

Instituto de Investigacion Sanitaria Biocruces Bizkaia - Hospital Universitario Cruces

Barakaldo, 49003

Spain

Hospital Universitari Vall d'Hebron

Barcelona, 08035

Spain

Hospital Clinic de Barcelona (Hospital Clinic i Provincial) - Barnaclinic S.A.

Barcelona, 08036

Spain

Universidad Autonoma de Madrid (UAM) - Hospital Universitario de La Princesa

Madrid, 28006

Spain

Hospital Universitario HM Puerta del Sur

Móstoles, 28938

Spain

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

Seville, 41013

Spain

St George's Hospital, University of London

London, England SW17 0QT

United Kingdom

University College London Hospitals NHS Foundation Trust

London, England WC1N 3BG

United Kingdom

Clinical Aging Research Unit, Newcastle University

Newcastle upon Tyne, England NE4 5PL

United Kingdom

Ninewells Hospital and Medical School - NHS Tayside

Dundee, Scotland DD19SY

United Kingdom