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ERAS-801

Phase 1

Glioblastoma Multiforme | Small molecule | Oncology |Erasca, Inc.|Last Updated: Aug 17, 2025

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 Enrollment52
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05222802A Study to Evaluate ERAS-801 in Patients With Recurrent Glioblastoma (THUNDERBBOLT-1)PHASE1 ACTIVE NOT_RECRUITING 52Feb 25, 2022Sep 30, 2025Aug 17, 20258 United States
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Study Endpoints
Primary Endpoints
Dose Limiting Toxicities (DLT)
Study Day 1 up to Day 29

Based on adverse events observed during dose escalation

Maximum Tolerated Dose (MTD)
Study Day 1 up to Day 29

Based on adverse events observed during dose escalation

Recommended Dose (RD)
Study Day 1 up to Day 29

Based on adverse events observed during dose escalation

Adverse Events
Assessed up to 24 months from time of first dose

Incidence and severity of treatment-emergent AEs and serious AEs

Secondary Endpoints
Plasma concentration (Cmax)
Study Day 1 up to Day 29
Time to achieve Cmax (Tmax)
Study Day 1 up to Day 29
Area under the curve
Study Day 1 up to Day 29
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Dose Escalation (Part 1)EXPERIMENTALERAS-801 will be orally administered to study participants with recurrent GBM in sequential ascending doses until unacceptable toxicity, disease progression, or withdrawal of consent.
Dose Expansion (Part 2)EXPERIMENTALERAS-801 will be orally administered at the recommended dose (as determined from Part 1) to study participants with recurrent GBM harboring alterations in EGFR.
Interventions
NameTypeDescription
ERAS-801DRUGAdministered orally
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Eligibility Criteria
Age Range18 Years — 99 Years
SexALL
Healthy VolunteersNo
Study Sites8

Inclusion Criteria: * Age ≥ 18 years * Willing and able to give written informed consent * Diagnosis of Glioblastoma, IDH WT as defined by the WHO 2021 criteria * Adequate organ function * Willing to comply with all protocol-required visits, assessments, and procedures * Able to swallow oral medica...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT05222802primaryCompletionDate: changed
LOWMay 24, 2026NCT05222802studyFirstPostDate: changed