TheraSphere™ Y-90 Glass Microspheres vial and microsphere.

TheraSphere™ Y-90 Glass Microspheres

Designed for control to achieve durable outcomes, TheraSphere is a targeted radioembolization therapy made of glass microspheres containing radioactive Yttrium-90 (Y-90). TheraSphere is uniquely engineered to have unmatched radiation per microsphere (RPM) to maximize dose to tumor and minimize dose to healthy tissue.
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Most studied, evidence-based Y-90 therapy

TheraSphere preserves quality of life and provides reproducible results for treating and referring physicians. Backed by positive level 1 clinical evidence, TheraSphere remains the only FDA-approved Y-90 therapy for HCC.

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TheraSphere mechanism of action explained

Unique, optimal design for tumor control

  • The only Y-90 microsphere with radiation embedded throughout
  • Maximizes radiation per microsphere (RPM) while minimizing risk of stasis or reflux
  • Arrives in a personalized, sealed source vial with easy and safe set-up
  • Dose vial administration takes less than five minutes

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TheraSphere is a registered trademark of Theragenics Corporation used under license by Boston Scientific Medical Device Limited, a wholly owned indirect subsidiary of Boston Scientific Corporation.