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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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Clinical Scorecard: FDA Rejection for Low-Dose Atropine Formulation

At a Glance

CategoryDetail
ConditionPediatric Progressive Myopia (PPM)
Key MechanismsLow-dose atropine formulation intended to slow myopia progression.
Target PopulationChildren aged 3–14 years with myopia ranging from –0.50 D to –6.00 D.
Care SettingClinical trials and regulatory review.

Key Highlights

  • Sydnexis received a complete response letter (CRL) from the FDA for SYD-101.
  • The NDA was supported by phase III results from the STAR trial.
  • The STAR trial enrolled approximately 847 children with myopia.
  • The EMA granted a positive opinion for SYD-101 based on STAR trial data.
  • The FDA acknowledged no safety concerns but questioned efficacy.

Guideline-Based Recommendations

Diagnosis

  • Assessment of myopia in children aged 3–14 years.

Management

  • Consideration of low-dose atropine for myopia progression.

Monitoring & Follow-up

  • Regular follow-up on myopia progression rates.

Risks

  • Potential lack of efficacy in low-dose atropine treatment.

Patient & Prescribing Data

Children with myopia between –0.50 D and –6.00 D.

SYD-101 is marketed in Europe as Ryjunea®.

Clinical Best Practices

  • Engage with regulatory bodies for drug approval processes.
  • Monitor treatment outcomes in pediatric populations.

Related Resources & Content

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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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