Atsena Advances XLRS Gene Therapy - Summary - MDSpire

Atsena Advances XLRS Gene Therapy

  • June 30, 2026

  • 2 min

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Objective:

To evaluate the efficacy of ATSN-201, an investigational gene therapy for X-linked retinoschisis (XLRS), in a Phase 3 pivotal trial.

Approach:
  • Trial Design: The LIGHTHOUSE trial is enrolling 76 adults and children aged six years and older, randomized 1:1 to receive ATSN-201 or enter a control arm for 12 months.
  • Endpoints: The primary endpoint is the change in microperimetry at 52 weeks.
Key Findings:
  • Enrollment began in May and has reached 10% of the planned study population.
  • Topline results are anticipated in the first half of 2028.
  • A Biologics License Application filing is targeted for the second half of 2028.
Interpretation:

XLRS is a rare inherited retinal disease with no approved treatments, and ATSN-201 represents a potential therapeutic option.

Limitations:
  • The study is still ongoing, and results are not yet available.
Conclusion:

Dosing the first patient marks a significant milestone for Atsena and the XLRS community.

Sources:

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