Skip to main content
Clinical Trials/NCT07021898
NCT07021898RecruitingPhase 1

A Phase 1 First-in-Human Open-label Study Evaluating the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Preliminary Efficacy of ERAS-4001 Monotherapy and in Combination in Patients With Advanced Solid Tumors

Erasca, Inc.4 sites in 1 country200 target enrollmentStarted: August 6, 2025Last updated:
Interventions
Drugs

Trial Snapshot

Phase
Phase 1
Status
Recruiting
Enrollment
200
Locations
4
Primary Endpoint
Dose Limiting Toxicities (DLT)

Study Overview

Brief Summary

The main purpose of the study is to assess whether the study drug, ERAS-4001, is safe and tolerable when administered to patients with advanced or metastatic solid tumors with certain KRAS mutations. ERAS-4001 will be given alone or in combination with other treatments.

Detailed Description

This is a first-in-human, Phase 1/1b, open-label, multicenter clinical study of ERAS-4001 as a monotherapy and in combination with other cancer therapies. The study will commence with dose optimization of ERAS-4001 monotherapy, followed by dose optimization of ERAS-4001 in combination with other cancer therapies.

Study Design

Study Type
Interventional
Allocation
Non Randomized
Intervention Model
Sequential
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
18 Years to 99 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Age ≥ 18 years
  • Willing and able to give written informed consent
  • Pathological documentation of tumor type and mutation prior to the first dose of study drug(s)
  • 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

Exclusion Criteria

  • Previous treatment with a RAS inhibitor
  • 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-4001
  • Received prior palliative radiation within 14 days of Cycle 1, Day 1
  • Have primary central nervous system (CNS) tumors
  • 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

Arms & Interventions

ERAS-4001 Monotherapy Dose Optimization.

Experimental

Escalating doses of ERAS-4001 administered orally.

Intervention: ERAS-4001 (Drug)

ERAS-4001 Combination Dose Optimization

Experimental

ERAS-4001 administered orally with another investigational agent.

Intervention: ERAS-4001 in combination (Drug)

Outcomes

Primary Outcomes

Dose Limiting Toxicities (DLT)

Time Frame: Study Day 1 up to Day 21

Based on toxicities observed

Maximum tolerated dose (MTD)

Time Frame: Study Day 1 up to Day 21

Based on toxicities observed

Recommended dose for expansion (RDE)

Time Frame: Study Day 1 up to Day 21

Based on toxicities observed

Adverse Events

Time Frame: Study Day 1 up to Day 21

Incidence and severity of treatment-emergent AEs and serious AEs

Plasma concentration (Cmax)

Time Frame: Study Day 1 up to Day 65

Maximum plasma concentration of ERAS-4001

Time to achieve Cmax (Tmax)

Time Frame: Study Day 1 up to Day 65

Time of achieve maximum plasma concentration of ERAS-4001

Area under the curve

Time Frame: Study Day 1 up to Day 65

Area under the plasma concentration-time curve of ERAS-4001

Half-life

Time Frame: Study Day 1 up to Day 65

Half-life of ERAS-4001

Secondary Outcomes

  • 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)

Investigators

Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (4)

Loading locations...

Similar Trials