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Study of ATH434 in Participants with Multiple System Atrophy

A Randomized, Double-Blind, Placebo-Controlled Study of ATH434 in Multiple System Atrophy

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05109091
Enrollment
77
Registered
2021-11-05
Start date
2022-07-01
Completion date
2024-11-28
Last updated
2024-12-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple System Atrophy

Keywords

Multiple System Atrophy, ATH434, Neurodegenerative disease, Shy-Drager Syndrome, Movement disorders, Autonomic dysfunction, Synucleinopathies, Atypical parkinsonism

Brief summary

This study will assess the safety and efficacy of ATH434 in participants with Multiple System Atrophy

Interventions

DRUGATH434 dose level 1

ATH434 taken BID

DRUGATH434 dose level 2

ATH434 taken BID

DRUGPlacebo

Placebo taken BID

Sponsors

Alterity Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
30 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Participant has clinical features of parkinsonism. 2. Participant has evidence of orthostatic hypotension and/or bladder dysfunction. 3. Participant has ataxia and/or pyramidal signs on neurological examination. 4. Participant is ambulatory. 5. Participant has biomarker evidence of MSA in biologic fluid and on MRI.

Exclusion criteria

1. Participant has motor symptoms for \> 4 years. 2. Participant has advanced disease, as indicated by frequent falls or choking. 3. Participant has structural brain abnormality on MRI. 4. Participant has any significant neurological disorder other than MSA. 5. Participant has an unstable medical or psychiatric illness. 6. Participant has a contraindication to, or is unable to tolerate, MRI or lumbar puncture.

Design outcomes

Primary

MeasureTime frame
Change in iron content as measured by brain MRIChange from Baseline to Week 52

Secondary

MeasureTime frame
Change in Neurofilament Light Chain LevelsChange from Baseline to Week 52
Change in Unified MSA Rating Scale (UMSARS) ScoreChange from Baseline to Week 52
Change in SF-36 ScoreChange from Baseline to Week 52

Countries

Australia, France, Italy, New Zealand, United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026