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ERAS-601

Phase 1

Advanced or Metastatic Solid Tumors | Small molecule | Oncology |Erasca, Inc.|Last Updated: Mar 25, 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 Enrollment90
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04670679A Dose Escalation/Expansion Study of ERAS-601 in Patients With Advanced or Metastatic Solid TumorsPHASE1 ACTIVE NOT_RECRUITING 90Dec 15, 2020Jun 1, 2026Mar 25, 202614 United States, Australia
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Study Endpoints
Primary Endpoints
Dose Limiting Toxicities (DLT)
Study Day 1 up to Day 29

Based on toxicities observed

Maximum tolerated dose (MTD)
Study Day 1 up to Day 29

Based on toxicities observed

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

Based on toxicities observed

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

Incidence and severity of treatment-emergent AEs and serious AEs

Plasma concentration (Cmax)
Study Day 1 up to Day 29

Maximum plasma concentration of ERAS-601 and cetuximab or pembrolizumab (if applicable)

Time to achieve Cmax (Tmax)
Study Day 1 up to Day 29

Time to achieve maximum plasma concentration of ERAS-601 and cetuximab or pembrolizumab (if applicable)

Area under the curve
Study Day 1 up to Day 29

Area under the plasma concentration-time curve of ERAS-601 and cetuximab or pembrolizumab (if applicable)

Half-life
Study Day 1 up to Day 29

Half-life of ERAS-601 and cetuximab or pembrolizumab (if applicable)

Secondary Endpoints
Objective Response Rate (ORR)
Assessed up to 24 months from time of first dose
Duration of Response (DOR)
Assessed up to 24 months from time of first dose
Time to Response (TTR)
Assessed up to 24 months from time of first dose
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Dose Escalation (Part A): ERAS-601 monotherapyEXPERIMENTALERAS-601 monotherapy will be administered in sequential ascending doses to study participants with advanced or metastatic solid tumors until unacceptable toxicity, disease progression, or withdrawal of consent.
Dose Escalation (Part B): ERAS-601 monotherapyEXPERIMENTALERAS-601 monotherapy will be administered in sequential ascending doses to study participants with advanced or metastatic solid tumors until unacceptable toxicity, disease progression, or withdrawal of consent.
Dose Escalation (Part C): ERAS-601 monotherapyEXPERIMENTALERAS-601 will be administered in sequential ascending doses to study participants with advanced or metastatic solid tumors until unacceptable toxicity, disease progression or withdrawal of consent.
Dose Escalation and Dose Expansion (Part D): ERAS-601 in combination with cetuximabEXPERIMENTALERAS-601 will be administered in sequential ascending doses with cetuximab to study participants with advanced metastatic solid tumors until unacceptable toxicity, disease progression or withdrawal of consent. Once the combination therapy recommended dose has been determined, this will be administered to study participants with HPV negative advanced or metastatic head and neck squamous cell carcinoma (HNSCC) or colorectal cancer (CRC).
Dose Escalation and Dose Expansion (Part E): ERAS-601 in combination with pembrolizumabEXPERIMENTALERAS-601 will be administered in sequential ascending doses with pembrolizumab to study participants with advanced metastatic solid tumors until unacceptable toxicity, disease progression or withdrawal of consent. Once the combination therapy recommended dose has been determined, this will be administered to study participants with HPV negative advanced or metastatic head and neck squamous cell carcinoma (HNSCC) or non small cell lung cancer (NSCLC).
Interventions
NameTypeDescription
ERAS-601DRUGAdministered orally
CetuximabDRUGAdministered via intravenous infusion
PembrolizumabDRUGAdministered via intravenous infusion
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Eligibility Criteria
Age Range18 Years — 99 Years
SexALL
Healthy VolunteersNo
Study Sites14

Inclusion Criteria: * Age ≥ 18 years * Willing and able to give written informed consent * Have histologically or cytologically confirmed advanced or metastatic solid tumor * There is no available standard systemic therapy available for the patient's tumor histology and/or molecular biomarker profi...

Countries:United StatesAustralia
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Recent Changes (Last 90 Days)
HIGHMay 26, 2026NCT04670679Enrollment: 200 → 90
LOWMay 24, 2026NCT04670679studyFirstPostDate: changed