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Taking people in FrancePhase 2

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

Key facts

Who runs it
Alterity Therapeutics
Where
Bordeaux, Marseille, Paris, and Toulouse, FranceSee the 4 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

Where in France

  • Centre hospitalier Universitaire de BordeauxBordeaux, FranceTaking people
  • Centre Hospitalier Regional De MarseilleMarseille, FranceTaking people
  • Assistance Publique Hopitaux de ParisParis, FranceTaking people
  • CHU ToulouseToulouse, FranceTaking people

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