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TheraSphere GBM

Phase 1

Glioblastoma Multiforme | Unknown | Oncology |Boston Scientific Corporation|Last Updated: Jun 1, 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
CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment36
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05303467A Feasibility Study to Evaluate the Safety of the TheraSphere Glioblastoma (GBM) Device in Patients With Recurrent GBMPHASE1 RECRUITING 36Jul 30, 2022Jan 31, 2027Jun 1, 20269 United States
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Study Endpoints
Primary Endpoints
The number of grade 3-5 non-hematological toxicities
30 days post index procedure
The number of ≥ grade 3 CNS toxicities related to non-target embolization
30 days post index procedure
Occurrence of symptomatic brain radiation necrosis requiring medical or surgical intervention and confirmed by pathology
30 days post index procedure
The number of Grade 4 neutropenia events persisting for longer than 5 days
30 days post index procedure
The number of grade 4 febrile neutropenia
30 days post index procedure
The number of grade 4 thrombocytopenia or grade 3 thrombocytopenia with hemorrhage
30 days post index procedure
Secondary Endpoints
Rate of any treatment-related adverse events and treatment-related serious adverse events (not including predefined Limiting Toxicities) from first patient enrolled through study completion.
Enrollment through 6 months post index procedure
Change in post-treatment neurological function as assessed by the National Institute of Health Stroke Scale (NIHSS).
Enrollment through 6 months post index procedure
Change in post-treatment neurological function as assessed by the modified Rankin Scale (mRS).
Enrollment through 6 months post index procedure
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Treatment Group AEXPERIMENTALSubjects in which the perfused volume encompasses the non-dominant hemisphere and non-eloquent regions of the brain. The projected radiation absorbed dose to the treatment volume is 40 Gy ±10%.
Treatment Group BEXPERIMENTALSubjects in which the perfused volume encompasses the non-dominant hemisphere and eloquent regions of the brain. The projected radiation absorbed dose to the treatment volume is 40 Gy ±10%.
Treatment Group CEXPERIMENTALSubjects in which the perfused volume encompasses the dominant hemisphere and non-eloquent regions of the brain. The projected radiation absorbed dose to the treatment volume is 40 Gy ±10%.
Treatment Group DEXPERIMENTALSubjects in which the perfused volume encompasses the dominant hemisphere and eloquent regions of the brain. The projected radiation absorbed dose to the treatment volume is 40 Gy ±10%.
Interventions
NameTypeDescription
TheraSphere GBMDEVICESingle treatment of TheraSphere GBM device
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites9

Inclusion Criteria: 1. Subject is 18 years or older and has signed and dated the trial informed consent form (ICF) 2. Life expectancy ≥ 12 weeks 3. Subject is willing and able to comply with the trial testing, procedures, and follow-up schedule 4. History of a histologically confirmed diagnosis of ...

Countries:United States
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Recent Changes (Last 90 Days)
LOWJun 2, 2026NCT05303467lastUpdatePostDate: changed
LOWJun 2, 2026NCT05303467lastUpdatePostDate: changed
LOWJun 2, 2026NCT05303467lastUpdatePostDate: changed
LOWMay 26, 2026NCT05303467primaryCompletionDate: changed
LOWMay 24, 2026NCT05303467studyFirstPostDate: changed