Providing EryDex treatment to patients with ataxia telangiectasia

An Open-Label Extension Study of EryDex in Patients With Ataxia Telangiectasia Following Participation in Study IEDAT-04-2022 (NEAT)

Phase 3 Interventional Quince Therapeutics S.p.A. · NCT06664853

This study is testing if a new treatment called EryDex can be safe and effective for people with ataxia telangiectasia who have already participated in a previous trial.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment106 (estimated)
Ages6 Years and up
SexAll
SponsorQuince Therapeutics S.p.A. Industry-sponsored
Locations19 sites (Los Angeles, California and 18 other locations)
Trial IDNCT06664853 on ClinicalTrials.gov

What this trial studies

This international, multi-center, open-label study offers EryDex treatment to patients with ataxia telangiectasia who have completed the IEDAT-04-2022 trial. The study aims to assess the safety and efficacy of EryDex, which is dexamethasone sodium phosphate encapsulated into autologous erythrocytes, over a 12-month treatment period. Participants must have completed the previous study and meet specific safety criteria to continue treatment. The study will monitor participants for any adverse effects and overall treatment outcomes.

Who should consider this trial

Good fit: Ideal candidates are patients with ataxia telangiectasia who have completed the IEDAT-04-2022 study and meet the inclusion criteria.

Not a fit: Patients with significant immune impairment or contraindications to corticosteroid treatment may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could improve neurological outcomes for patients with ataxia telangiectasia.

How similar studies have performed: Other studies involving corticosteroid treatments for neurological conditions have shown promise, but this specific approach is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* body weight ≥15 kg
* participation in IEDAT-04-2022 study and its completion, including final efficacy and safety assessments

Exclusion Criteria:

* safety contraindications for continuation of treatment, as determined by the investigator
* clinically significant immune impairment that, in the opinion of the Investigator, precludes further treatment with corticosteroids
* Current neoplastic disease or previous neoplastic disease not in remission for at least 2 years.
* requiring treatment with a systemic corticosteroid

Where this trial is running

Los Angeles, California and 18 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Ataxia Telangiectasia
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.