News summary

Leqembi® Pen subcutaneous formulation approved in Japan

Source: PR Newswire • Published: 16 Sept 2026, 06:18

Summarized by Masters of Longevity from PR Newswire.

Leqembi Pen coverage previews a regulatory update about a new once-weekly at-home subcutaneous autoinjector option for treating early Alzheimer’s disease, highlighting patient-friendly administration and expected impacts on care delivery.

Leqembi® Pen subcutaneous formulation approved in Japan
Key Takeaways
  • Japan approved a once-weekly 500 mg subcutaneous autoinjector formulation for early Alzheimer's disease treatment.
  • Integrated Phase 3 Clarity AD core data and LTE sub-studies showed similar exposure to IV dosing and supported comparable efficacy expectations.
  • Subcutaneous administration had a generally similar safety profile and fewer systemic injection or infusion reactions (1.4%).
Read the full article at PR Newswire

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