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The Ophthalmologist / Issues / 2025 / November / FDA Rejection for Low-Dose Atropine Formulation
Refractive News Latest

FDA Rejection for Low-Dose Atropine Formulation 

Sydexis' SYD-101 receives Complete Response Letter from FDA

11/18/2025 1 min read

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Objective:

To report on the FDA's complete response letter regarding SYD-101, a low-dose atropine formulation for pediatric myopia.

Approach:
  • Study Overview: The NDA for SYD-101 was supported by phase III results from the STAR trial, which involved approximately 847 children with myopia.
  • Regulatory Status: The European Medicines Agency granted a positive opinion for SYD-101 based on the STAR trial data.
Key Findings:
  • SYD-101 met its primary efficacy endpoint in the STAR trial.
  • The FDA acknowledged no safety concerns but questioned the efficacy of low-dose atropine for myopia treatment.
Interpretation:

Limitations:
  • The FDA's CRL suggests that current data does not sufficiently support the efficacy claims for SYD-101.
Conclusion:

Sydnexis plans to work with the FDA to address the concerns raised in the CRL.

Sources:
  • Business Wire

This content is an AI-generated, fully rewritten summary based on a published scholarly article. It does not reproduce the original text and is not a substitute for the original publication. Readers are encouraged to consult the source for full context, data, and methodology.

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