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

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

Recruiting
40-80 years
All
Phase 2

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Overview

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.

Participants will:

• Take NEU-411 or placebo every day for 52 weeks

Description

NEU-411-PD201 is a Phase 2, randomized, placebo-controlled, proof-of-concept study 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 study, approximately 150 participants will be randomized in a 1:1 allocation ratio to NEU-411 30 mg once per day or placebo for a 52-week treatment period. A safety follow-up visit will occur 2 weeks after the last treatment visit.

Eligibility

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 are outlined in the full study protocol.

Study details
    Parkinson Disease
    Parkinson
    Idiopathic Parkinson Disease
    Early Parkinson Disease (Early PD)
    Parkinson Disease
    Idiopathic

NCT06680830

Neuron23 Inc.

9 August 2025

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FAQs

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A clinical trial is a study designed to test specific interventions or treatments' effectiveness and safety, paving the way for new, innovative healthcare solutions.

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