Overview

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

Status:
Recruiting
Trial end date:
2025-08-31
Target enrollment:
0
Participant gender:
All
Summary
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.
Phase:
Phase 2
Accepts Healthy Volunteers?
No
Details
Lead Sponsor:
Ono Pharmaceutical Co. Ltd
Criteria
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 Unified Multiple System Atrophy Rating Scale (UMSARS) 1 total score
(excluding item 1.11 sexual function) of ≤ 17.

4. Patients with an anticipated survival of at least 3 years in the opinion of the
Investigator.

5. 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.

6. 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.