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Hope for MSA patients: continued access to experimental drug ATH434
NCT ID NCT07531433
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This program offers ongoing access to the experimental drug ATH434 for people with multiple system atrophy (MSA) who completed a prior Phase 2 study. Participants take the drug twice daily by mouth. The goal is to allow continued treatment for those who may benefit, as judged by their doctor.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Completed Alterity protocol ATH434-201 or ATH434-202 * Expected to benefit from treatment from treatment with ATH434, in the opinion of the treating physician Exclusion Criteria: * Discontinued prior ATH434 treatment (ATH434-201 or ATH434-202) for any reason * Significant medical or psychiatric condition that may decrease the benefit-risk ratio of participation in this program to an unacceptable level, as per the treating physician's opinion
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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