TheraSphere™ Y-90 Glass Microspheres

Name: TheraSphere™ Y-90 Glass Microspheres - Boston Scientific
Brand: Boston Scientific

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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Instructions for use are found inside the product packaging and on our product literature website.

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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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Durability leads to quality of life

TheraSphere delivers durable patient outcomes and reproducible results to you and your multi-disciplinary team, while also preserving patient quality of life.

Clinical data since 1999 shows TheraSphere is a proven, evidence-based therapy across different HCC stages, with more than 100,000 patient treatments globally.

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Reproducible results backed by Dosimetry Steering Committee recommendations

Key updates from an international multidisciplinary working group provide dosing recommendations based on contemporary clinical data, including results from TheraSphere landmark studies LEGACY, TARGET and DOSISPHERE-01 Trial.

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Product details

Pure beta emitter
Average energy of 0.9367 MeV
Average tissue penetration range of 2.5 mm
Available personalized doses: 3 – 20 GBq (in 0.5 GBq increments), ranging from 750,000 to 5 million microspheres
Insoluble glass microspheres with a mean diameter of 20-30 µm
Y-90 is an integral constituent of the glass

Learn more about how TheraSphere works

TheraSphere Y-90 glass microsphere is approximately 25 microns in diameter.

Ordering information

Current TheraSphere Customers

TheraSphere Now online ordering platform

This free cloud-based platform provides real-time inventory viewing, dose and accessory ordering, delivery tracking, and more!

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TheraSphere Now FAQs

If you do not wish to use TheraSphere Now, please proceed to this online order form.

TheraSphere Order Form in PDF

Need a printed copy for your patient files? Please download the PDF to your computer, fill out the form, and submit directly to TherasphereCustomerSupport@bsci.com.

First Time Ordering TheraSphere?

If this is your first time ordering TheraSphere, please note that our Customer Service team requires a completed Customer Information Form prior to account set up.

Please download the PDFs to your computer, fill out the form and submit to our Customer Service team:

Training resources to advance your Y-90 investment

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From clinical data downloads and data presentation templates, to patient education, practice support and reimbursement resources, we are committed to helping support your Y-90 program.