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TheraSphere Yttrium-90 Glass Microspheres

Phase 3

Inoperable Hepatocellular Carcinoma | Small molecule | Oncology |Boston Scientific Corporation|Last Updated: Jun 8, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedACTIVE_CONTROLLEDBiomarker
Total Trials1
Total Enrollment92
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05016245MANDARIN (S6371)PHASE3 ACTIVE NOT_RECRUITING 92Sep 13, 2021Oct 30, 2026Jun 8, 20261 China
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Study Endpoints
Primary Endpoints
Time to progression (TTP)
through study completion, an average of 18 months

Time to progression (TTP) Definition of progression: Progressive Disease (PD) assessment occurs according to mRECIST occurs according to mRECIST

Safety assessed within 60 days post treatment using NCI-CTCAE v5.0
within 60 days post treatment
Secondary Endpoints
Hepatic time to progression (hTTP) determined by localized mRECIST (within the treated area)
through study completion, an average of 18 months
Objective response rate (ORR) of the index lesion according to localized mRECIST (within the treatment area)
through study completion, an average of 18 months
Confirmed ORR according to mRECIST
through study completion, an average of 18 months
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
TheraSphere™ Yttrium-90 Glass MicrospheresEXPERIMENTAL -
conventional Transarterial Chemoembolization(cTACE)ACTIVE_COMPARATOR -
Interventions
NameTypeDescription
TheraSphere™ Yttrium-90 Glass MicrospheresCOMBINATION_PRODUCTTheraSphere™ Yttrium-90 Glass Microspheres TheraSphere™ is steam sterilized and supplied in 6 standard dose sizes: 3 GBq, 5 GBq, 7 GBq, 10 GBq, 15 GBq, 20 GBq. Custom dose sizes are also available in 0.5 GBq increments between 3 and 20 GBq. TheraSphereTM is supplied with the following accessories: Administration Set Administration Accessory Kit
conventional Transarterial Chemoembolization(cTACE)PROCEDUREconventional Transarterial Chemoembolization(cTACE) is comprised of an anti-neoplastic agent(s) (i.e. cisplatin), lipiodol and embolic agent(s). The choice of agent(s) to be used is per usual local site practice. Chemotherapy agents can be as a single agent or used in combination, as per local practice.
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Eligibility Criteria
Age Range18 Years — 80 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: * ≥18 and ≤80 age and provided study consent * Patients diagnosed with HCC and clinically evaluated as inoperable (as per local practice) or who refuse operation (ablation, hepatectomy and liver transplantation) * At least one well defined HCC tumor measurable by mRECIST in cont...

Countries:China
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Recent Changes (Last 90 Days)
LOWJun 8, 2026NCT05016245lastUpdatePostDate: changed
LOWJun 8, 2026NCT05016245lastUpdatePostDate: changed
LOWJun 8, 2026NCT05016245lastUpdatePostDate: changed
LOWMay 26, 2026NCT05016245primaryCompletionDate: changed
LOWMay 24, 2026NCT05016245studyFirstPostDate: changed