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Enrolling by invitationPhase 2

Open-Label Access to ATH434 for Patients Who Completed Study ATH434-201 in France

Key facts

Who runs it
Alterity Therapeutics
Where
France4 sites in 1 countryChoose a country to see its sites
Status
Enrolling by invitation
Phase
Phase 2
People taking part
7 people, planned
Started
1 Oct 2026
Expected to end
Jul 2029
Type of study
Interventional
Treatments tested
  • ATH434
Record updated
9 October 2026

Who can take part

Age
18 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 4 criteriaShow less

Who can take part

  • Completed Alterity protocol ATH434-201
  • Expected to benefit from treatment from treatment with ATH434, in the opinion of the Investigator

Who cannot take part

  • Discontinued prior ATH434 treatment (ATH434-201) 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 Investigator's opinion

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

This multicenter open-label extension study conducted in France is designed to provide ATH434 orally BID to eligible patients who completed the Phase 2 study ATH434-201, and who may benefit from this treatment according to the evaluation by the Investigator.

The group in the trial

  • ATH434 75mg BIDTreatment being tested

    Participants who completed the prior ATH434-201 Phase 2 trial will receive ATH434 75 mg orally twice daily (BID). Treatment consists of an initial 12-month treatment phase, followed by an ongoing extension phase based on investigator assessment of continued clinical benefit, safety, and tolerability

    Treatment: ATH434

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

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Data and sources

Registry record
Listed on ClinicalTrials.gov and on the EU's official list of trials (CTIS).
Official title
Open-Label Extension Study to Provide Access to ATH434 in Patients With Multiple System Atrophy
Record updated
9 October 2026