A Dose Escalation/Expansion Study of ERAS-601 in Patients With Advanced or Metastatic Solid Tumors
FLAGSHP-1
An Open-Label, Multi-Center Phase 1/1b Dose Escalation and Expansion Study of ERAS-601 SHP2 Inhibitor as a Monotherapy and in Combination With Other Anti-Cancer Therapies in Patients With Advanced or Metastatic Solid Tumors
1 other identifier
interventional
90
2 countries
14
Brief Summary
- To evaluate the safety and tolerability of escalating doses of ERAS-601 when administered as a monotherapy and in combination with other cancer therapies in study participants with advanced or metastatic solid tumors.
- To determine the Maximum Tolerated Dose (MTD) and/or recommended dose (RD) of ERAS-601 when administered as a monotherapy and in combination with other cancer therapies.
- To characterize the pharmacokinetic (PK) profile of ERAS-601 when administered as a monotherapy and in combination with other cancer therapies.
- To evaluate the antitumor activity of ERAS-601 when administered as a monotherapy and in combination with other cancer therapies.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Dec 2020
Longer than P75 for phase_1
14 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 11, 2020
CompletedStudy Start
First participant enrolled
December 15, 2020
CompletedFirst Posted
Study publicly available on registry
December 17, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2026
ExpectedMarch 25, 2026
March 1, 2026
5.1 years
December 11, 2020
March 23, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (8)
Dose Limiting Toxicities (DLT)
Based on toxicities observed
Study Day 1 up to Day 29
Maximum tolerated dose (MTD)
Based on toxicities observed
Study Day 1 up to Day 29
Recommended dose (RD)
Based on toxicities observed
Study Day 1 up to Day 29
Adverse Events
Incidence and severity of treatment-emergent AEs and serious AEs
Assessed up to 24 months from time of first dose
Plasma concentration (Cmax)
Maximum plasma concentration of ERAS-601 and cetuximab or pembrolizumab (if applicable)
Study Day 1 up to Day 29
Time to achieve Cmax (Tmax)
Time to achieve maximum plasma concentration of ERAS-601 and cetuximab or pembrolizumab (if applicable)
Study Day 1 up to Day 29
Area under the curve
Area under the plasma concentration-time curve of ERAS-601 and cetuximab or pembrolizumab (if applicable)
Study Day 1 up to Day 29
Half-life
Half-life of ERAS-601 and cetuximab or pembrolizumab (if applicable)
Study Day 1 up to Day 29
Secondary Outcomes (3)
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
Other Outcomes (1)
Pharmacodynamic assessment
Assessed up to 24 months from time of first dose
Study Arms (5)
Dose Escalation (Part A): ERAS-601 monotherapy
EXPERIMENTALERAS-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 monotherapy
EXPERIMENTALERAS-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 monotherapy
EXPERIMENTALERAS-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 cetuximab
EXPERIMENTALERAS-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 pembrolizumab
EXPERIMENTALERAS-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
Administered via intravenous infusion
Administered via intravenous infusion
Administered orally
Eligibility Criteria
You may qualify if:
- 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 profile; or standard therapy is intolerable, not effective, or not accessible; or patient has refused standard therapy
- Able to swallow oral medication
- Have Eastern Cooperative Oncology Group Performance Status (ECOG PS) of 0 or 1
- Adequate cardiovascular, hematological, liver, and renal function
- Willing to comply with all protocol-required visits, assessments, and procedures
You may not qualify if:
- Previous treatment with a SHP2 inhibitor
- Documented PTPN11 mutations
- Is currently receiving another study therapy or has participated in a study of an investigational agent and received study therapy within 4 weeks of the first dose of ERAS-601
- Received prior palliative radiation within 7 days of Cycle 1, Day 1
- Have primary central nervous system (CNS) disease or known active CNS metastases and/or carcinomatous meningitis
- Prior surgery (e.g., gastric bypass surgery, gastrectomy) or gastrointestinal dysfunction (e.g., Crohn's disease, ulcerative colitis, short gut syndrome) that may affect drug absorption
- Active, clinically significant interstitial lung disease or pneumonitis
- History of thromboembolic or cerebrovascular events ≤ 12 weeks prior to the first dose of study treatment
- History or current evidence of retinal vein occlusion (RVO) or current risk factors for RVO
- Have any underlying medical condition, psychiatric condition, or social situation that, in the opinion of the Investigator, would compromise study administration as per protocol or compromise the assessment of AEs
- Are pregnant or breastfeeding or expecting to conceive or father children within the projected duration of the trial
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Erasca, Inc.lead
Study Sites (14)
University of Alabama at Birmingham
Birmingham, Alabama, 35294, United States
Sarah Cannon Research Institute (Florida Cancer Specialists)
Sarasota, Florida, 34232, United States
Massachusetts General Hospital
Boston, Massachusetts, 02215, United States
Washington University
St Louis, Missouri, 63110, United States
Comprehensive Cancer Centers of Nevada
Henderson, Nevada, 89014, United States
Memorial Sloan Kettering Cancer Center
New York, New York, 10065, United States
University of North Carolina
Chapel Hill, North Carolina, 27599, United States
University of Cincinnati
Cincinnati, Ohio, 45267, United States
University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
Sarah Cannon Research Institute (Tennessee Oncology)
Nashville, Tennessee, 37203, United States
Mary Crowley Cancer Research
Dallas, Texas, 75251, United States
The University of Texas MD Anderson Cancer Center
Houston, Texas, 77030, United States
Peter MacCallum Cancer Centre
Melbourne, Victoria, Australia
Linear Clinical Research
Perth, Western Australia, Australia
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Les Brail, PhD
Clinical Development
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 11, 2020
First Posted
December 17, 2020
Study Start
December 15, 2020
Primary Completion
February 1, 2026
Study Completion (Estimated)
June 1, 2026
Last Updated
March 25, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share