A Phase 2 Study of ONO-2808 in Patients With Multiple System Atrophy

Purpose

This is a Phase 2, double-blind, parallel-group, placebo-controlled study to assess the safety, tolerability, pharmacokinetics, pharmacodynamics, and efficacy of multiple doses of ONO-2808 in patients with MSA. This is the first study of ONO-2808 in patients with MSA.

Condition

  • Multiple System Atrophy (MSA)

Eligibility

Eligible Ages
Between 30 Years and 80 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  1. Female or male patients with a diagnosis of clinically-established or clinically-probable MSA according to the novel Movement Disorder Society (MDS) criteria for MSA diagnosis (2022), including patients with MSA of either subtype (MSA-P or MSA-C). 2. Patients at the early stages of the disease, defined as a maximum of 5 years since the onset of one of the following symptoms associated with MSA: - Parkinsonism - Ataxia - Orthostatic hypotension and/or urinary dysfunction 3. Patients with an anticipated survival of at least 3 years in the opinion of the Investigator. 4. Patients who are able to ambulate without the assistance of another person, defined as the ability to take at least 10 steps and then to turn around and walk at least another 10 steps. Use of assistive devices (e.g., walker or cane) is allowed. 5. Ability to swallow oral medication and be willing to adhere to the study intervention regimen.

Exclusion Criteria

  1. Pregnant or lactating females. 2. Patients with a clinically-significant or unstable medical or surgical condition other than MSA that, in the opinion of the Investigator, might preclude safe completion of the study or might affect the results of the study (e.g., pulmonary, cardiovascular [including bradyarrhythmia], macular edema, and significant renal or hepatic dysfunction). 3. Neurological diseases/disorders other than MSA, such as Parkinson's disease, dementia with Lewy bodies, essential tremor, progressive supranuclear palsy, spinocerebellar ataxia, spastic paraparesis, corticobasal degeneration, or vascular, normal pressure hydrocephalus, pharmacological, or post-encephalitic parkinsonism. 4. Patients with documented liver diseases or cirrhosis. 5. Positive results at Screening for active viral infections that include positive human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg) and hepatitis B core antibody, and hepatitis C virus (HCV). 6. Patients with suicide ideation according to the Investigator's clinical judgment per the Columbia Suicide Severity Rating Scale (C-SSRS) at Screening or who have made a suicide attempt in the 6 months before Screening.

Study Design

Phase
Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Triple (Participant, Care Provider, Investigator)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
ONO-2808 Arm
  • Drug: ONO-2808
    Oral administration of ONO-2808 at low, middle or high doses once a daily for 24 weeks
Placebo Comparator
Placebo Arm
  • Drug: Placebo
    Oral administration of placebo once a daily for 24 weeks

Recruiting Locations

University of Kansas Medical Center Research Institute
Kansas City, Kansas 66160
Contact:
Sarina Fay
913-588-6924
sfay2@kumc.edu

More Details

Status
Recruiting
Sponsor
Ono Pharmaceutical Co. Ltd

Study Contact

Ono Pharma USA, Inc.
medinfo_US@ono-pharma.com

Detailed Description

The purpose of the study is to evaluate 3 doses of ONO-2808 compared to placebo in MSA patients, including: 1) safety and tolerability, 2) pharmacokinetics, and 3) changes in clinical outcome assessments (COA) and biomarkers considered to be related to the pharmacodynamics and potential efficacy of ONO-2808.