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A Study of ERAS-007 as Monotherapy or in Combination With ERAS-601 in Patients With Advanced or Metastatic Solid Tumors

A Phase 1b/2, Open-label, Multi-center Study of ERAS-007 (ERK Inhibitor) Administered as Monotherapy or in Combination With ERAS-601 (SHP2 Inhibitor) in Patients With Advanced or Metastatic Solid Tumors (HERKULES-1)

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04866134
Acronym
HERKULES-1
Enrollment
85
Registered
2021-04-29
Start date
2021-05-07
Completion date
2026-07-01
Last updated
2026-09-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced or Metastatic Solid Tumors

Keywords

ERK, solid tumor, advanced solid tumor, metastatic solid tumor, neoplasms, solid malignancies, MAPK, SHP2

Brief summary

* To evaluate the safety and tolerability of ERAS-007 monotherapy administered once weekly (QW) and twice daily-once weekly (BID-QW). * To determine the Maximum Tolerated Dose (MTD) and/or Recommended Dose (RD) of ERAS-007 monotherapy administered BID-QW. * To characterize the pharmacokinetic (PK) profile of ERAS-007 monotherapy. * To determine the optimal dose and schedule of ERAS-007 monotherapy. * To evaluate antitumor activity of ERAS-007 in various solid tumors. * To evaluate the safety and tolerability of ERAS-007 (BID-QW) and ERAS-601 (twice daily for three weeks on and 1 week off (BID 3/1)) when administered in combination. * To determine the Maximum Tolerated Dose (MTD) and/or Recommended Dose (RD) of ERAS-007 administered in combination with ERAS-601. * To characterize the pharmacokinetic (PK) profile of ERAS-007 and ERAS-601 when administered in combination. * To evaluate antitumor activity of ERAS-007 and ERAS-601 when administered in combination in various solid tumors * To evaluate antitumor activity of ERAS-007 and ERAS-601 when administered in combination in various solid tumors

Detailed description

This is a Phase 1b/2, open-label, multicenter clinical study of ERAS-007 monotherapy (QW or BID-QW) administered either QW or BID-QWand ERAS-007 (BID-QW) in combination with ERAS-601 (BID 3/1). The monotherapy RD on a weekly schedule has been determined to be 250 mg QW in a previous study. The dose escalation phases of this study will test ERAS-007 monotherapy administered BID-QW as a monotherapy or in combination with ERAS-601 in participants with any solid tumor. The monotherapy RD on a weekly schedule has been determined to be 250 mg QW in a previous study. In parallel, the dose expansion phase of this study will test ERAS-007 monotherapy administered at the RD of 250 mg QW in participants with advanced or metastatic solid tumors harboring specific molecular alterations. Once sufficient safety and PK data are available from the BID-QW dose escalation phase, the Sponsor will then determine the optimal dose and schedule of ERAS-007 administered as a monotherapy.

Interventions

ERAS-007 will be administered orally as specified in Arm description.

ERAS-601 will be administered orally as specified in Arm description.

Sponsors

Erasca, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years. * Willing and able to give written informed consent. * Have histologically or cytologically confirmed advanced or metastatic solid tumor with a relevant molecular alteration (as applicable). * 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. * Recovered from all toxicities associated with prior treatment to acceptable baseline status. * Have ECOG performance status of 0 or 1 with an anticipated life expectancy of \> 12 weeks. * Willing to comply with all protocol-required visits, assessments, and procedures. * Able to swallow oral medication.

Exclusion criteria

* 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-007. * Received previous treatment with an ERK inhibitor. * For participants being considered for ERAS-007 + ERAS-601 (Part D): prior treatment with SHP2 inhibitor. * For participants being considered for ERAS-007 + ERAS-601 (Part D): documented PTPN11 mutations * Received prior antineoplastic therapy within \< 21 days or 5 half-lives, whichever is shorter. * Received prior palliative radiation within 7 days of first dose of ERAS 007 or ERAS-601, * Received previous treatment with a MAPK inhibitor that resulted in discontinuation due to unacceptable toxicity. * 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. * 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.

Design outcomes

Primary

MeasureTime frameDescription
Evaluate safety and tolerability of escalating doses of ERAS-007 BID-QWAssessed up to 24 months from time of first doseBased on adverse events observed
Dose Limiting Toxicities (DLT)Study Day 1 up to Day 29Based on adverse events observed
Maximum tolerated dose (MTD)Study Day 1 up to Day 29Based on adverse events observed
Recommended dose (RD)Study Day 1 up to Day 29Based on adverse events observed
Adverse EventsAssessed up to 24 months from time of first doseIncidence and severity of treatment-emergent AEs and serious AEs
Plasma concentration (Cmax)Study Day 1 up to Day 29Maximum plasma concentration of ERAS-007
Time to achieve Cmax (Tmax)Study Day 1 up to Day 29Time to achieve maximum plasma concentration of ERAS-007 and ERAS-601
Area under the curveStudy Day 1 up to Day 29Area under the plasma concentration-time curve of ERAS-007 and ERAS-601
Half-lifeStudy Day 1 up to Day 29Half-life of ERAS-007 and ERAS-601

Secondary

MeasureTime frameDescription
Objective Response Rate (ORR)Assessed up to 24 months from time of first doseBased on assessment of radiographic imaging per RECIST version 1.1
Duration of Response (DOR)Assessed up to 24 months from time of first doseBased on assessment of radiographic imaging per RECIST version 1.1
Time to Response (TTR)Assessed up to 24 months from time of first doseBased on assessment of radiographic imaging per RECIST version 1.1

Countries

United States

Contacts

STUDY_DIRECTORWei Lin, M.D.

Chief Medical Officer

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 17, 2026