A Study of ERAS-601 in People With Chordoma

A Phase 1b/2 Study of ERAS-601 SHP2 Inhibitor as a Monotherapy in Patients With Advanced and Progressing Chordoma

The researchers are doing this study is to find out whether ERAS-601 is a safe and effective treatment that causes few or mild side effects in people with advanced and progressing chordoma.

Study Overview

• Status: Active, not recruiting
• Conditions: Chordoma
• Intervention / Treatment: Drug: ERAS-601

• Study Type: Interventional
• Enrollment (Actual): 12
• Phase: Phase 2; Phase 1

Contacts and Locations

Study Locations

• United States
  • New Jersey
    • Basking Ridge, New Jersey, United States, 07920
      • Memorial Sloan Kettering at Basking Ridge (Limited Protocol Activities)
    • Middletown, New Jersey, United States, 07748
      • Memorial Sloan Kettering Monmouth (Limited Protocol Activities)
    • Montvale, New Jersey, United States, 07645
      • Memorial Sloan Kettering Bergen (Limited Protocol Activities)
  • New York
    • Commack, New York, United States, 11725
      • Memorial Sloan Kettering Cancer Center - Suffolk (Limited Protocol Activities)
    • Harrison, New York, United States, 10604
      • Memorial Sloan Kettering Westchester (Limited protocol activities)
    • New York, New York, United States, 10065
      • Memorial Sloan Kettering Cancer Center
    • Uniondale, New York, United States, 11553
      • Memorial Sloan Kettering Nassau (Limited Protocol Activities)

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Age ≥ 18 years.
• Have histologically confirmed chordoma that is not dedifferentiated or poorly differentiated subtype.
• Have progressive disease per RECIST 1.1 defined by +20% change between any two scans in the 9 months prior to enrollment.
• Have Eastern Cooperative Oncology Group Performance Status (ECOG PS) of 0 to 1
• Recovered from acute, clinically significant toxicities associated with current/recent treatments to acceptable baseline status

• Screening laboratory values must meet the following criteria and should be obtained within 30 days prior to study treatment:

  • Absolute neutrophil count (ANC) ≥ 1.5 x 103/m
  • Platelet count ≥ 75 × 103/mL without symptomatic bleeding
  • Hemoglobin > 9 g/dL
  • Serum electrolytes (sodium, potassium, magnesium, phosphorus, calcium) Grade ≤1 or within the institutional ranges of normal. If clinically appropriate, electrolytes may be corrected, and values reassessed prior to enrollment.
  • AST and ALT ≤ 2.5 × ULN or ≤ 5 × ULN for patients with liver metastases
  • Total bilirubin ≤ 1.5 × ULN (except in patients with Gilbert Syndrome who can have total bilirubin < 3.0 mg/dL)
  • Serum creatinine clearance <1.5 times ULN or ≥ 50 mL/min as determined by Cockcroft-Gault (Appendix 7) (creatinine clearance need not be calculated if serum creatinine is within normal limits).

Female patients of childbearing potential must have a negative serum beta-human chorionic gonadotropin pregnancy test within 7 days prior to receiving the first dose of study medication.

• Female patients of childbearing potential must be willing to use an adequate method of contraception, as outlined in the protocol, for the course of the study through 120 days after last dose of study medication.
• Male patients of childbearing potential must agree to use an adequate method of contraception, as outlined in the protocol, starting with the first dose of study therapy through 120 days after the last dose of study therapy.
• Willing to comply with all protocol required- visits, assessments, and procedures.
• Willing to participate in patient interviews for quality-of-life assessment and complete patient reported outcomes (PRO) questionnaires
• Non-English speaking patients will not be required to complete patient reported outcomes.

Exclusion Criteria:

• Previous treatment with a SHP2 inhibitor.
• Documented PTPN11 mutations.
• Is currently receiving another treatment within 4 weeks of the first dose of ERAS-601 that may impact the outcome of this trial.
• Patients with prior antineoplastic therapy within <21 days or 5 half-lives, whichever is shorter.
• Received radiation within 14 days of Cycle 1, Day 1.
• Received strong inhibitors or inducers of CYP3A4, including grapefruit, grapefruit juice, and herbal supplements from 7 days prior to the administration of study drug.
• History of calcium and phosphate homeostasis disorder or systemic mineral imbalance with ectopic soft tissue calcification.
• Gastrointestinal dysfunction that may affect drug absorption.
• Have an untreated, uncontrolled, active infection (bacterial, fungal, or viral) requiring treatment that will impact this protocol.
• History or current evidence of retinal pigment epithelial detachment (RPED), central serous retinopathy, retinal vein occlusion (RVO), or predisposing factors to RPED or RVO.
• Sight-limiting degenerative corneal opacity.
• Have any underlying medical condition (e.g. cardiac, pulmonary, hepatic, etc.), psychiatric condition, or social situation that, in the opinion of the Investigator, would compromise patient safety and/or efficacy evaluation as per protocol.
• Incomplete recovery or ongoing complications from prior surgery that in the opinion of the principal investigator will compromise safety of patient and/or efficacy evaluation of protocol.
• Are pregnant or breastfeeding or expecting to conceive or father children within the projected duration of the trial, starting with the screening visit through 120 days after the last dose of study therapy.
• Have a second malignancy that is active and in the opinion of the principal investigator will compromise safety of patient and/or efficacy evaluation of protocol.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: ERAS-601; All patients on the single-arm Phase 1b study will take ERAS-601 40mg BID, 3-weeks on 1-week off (3/1), as monotherapy. Each treatment cycle consists of a 4-week (28-day) treatment period.	Drug: ERAS-601; ERAS-601 40mg BID, 3-weeks on 1-week off (3/1), as monotherapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Clinical Benefit Rate (Phase Ib)	proportion of patients with CR or PR at any time or SD ≥ 6 months per RECIST 1.1)	1 year

Collaborators and Investigators

• Sponsor: Memorial Sloan Kettering Cancer Center
• Investigators: Principal Investigator: Mrinal Gounder, MD, Memorial Sloan Kettering Cancer Center

Publications and helpful links

Helpful Links

• Memorial Sloan Kettering Cancer Center

Study record dates

Study Major Dates

• Study Start (Actual): April 25, 2025
• Primary Completion (Estimated): April 1, 2027
• Study Completion (Estimated): April 1, 2027

Study Registration Dates

• First Submitted: April 25, 2025
• First Submitted That Met QC Criteria: April 25, 2025
• First Posted (Actual): May 4, 2025

Study Record Updates

• Last Update Posted (Actual): April 28, 2026
• Last Update Submitted That Met QC Criteria: April 27, 2026
• Last Verified: April 1, 2026

More Information

Terms related to this study

• Keywords: Advanced and Progressing Chordoma; ERAS-601 SHP2 Inhibitor; 25-071
• Additional Relevant MeSH Terms: Neoplasms; Neoplasms by Histologic Type; Neoplasms, Germ Cell and Embryonal; Chordoma
• Other Study ID Numbers: 25-071

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No