Study of RMC-5127 in Patients With Advanced KRAS G12V-Mutant Solid Tumors
Phase 1/1b, Multicenter, Open-Label, Study of RMC-5127 in Patients With Advanced KRAS G12V-Mutant Solid Tumors
1 other identifier
interventional
574
1 country
5
Brief Summary
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics (PK), and preliminary antitumor activity of RMC-5127 as a monotherapy and in combination with either daraxonrasib or cetuximab in adults with KRAS G12V-mutant solid tumors.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Jan 2026
Typical duration for phase_1
5 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
Study Start
First participant enrolled
January 8, 2026
CompletedFirst Submitted
Initial submission to the registry
January 9, 2026
CompletedFirst Posted
Study publicly available on registry
January 16, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 1, 2028
February 4, 2026
February 1, 2026
2.2 years
January 9, 2026
February 3, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (5)
Number of patients with adverse events (AEs)
Number of patients with AEs as assessed by Common Terminology Criteria for Adverse Events CTCAE v5
Up to approximately 3 years
Changes in vital signs
Number of patients with changes from baseline in vital signs
Up to approximately 3 years
Changes in electrocardiogram (ECG) test values
Number of patients with changes from baseline in ECG test values
Up to approximately 3 years
Changes in clinical laboratory test values
Number of patients with changes from baseline in clinical laboratory test values
Up to approximately 3 years
Dose Limiting Toxicities
Number of patients with dose limiting toxicities
Up to 28 days
Secondary Outcomes (7)
Cmax concentrations of RMC-5127 and daraxonrasib
Up to Cycle 5 Day 1 (each cycle is up to 28 days)
Tmax concentration of RMC-5127 and daraxonrasib
Up to Cycle 5 Day 1 (each cycle is up to 28 days)
AUC concentrations of RMC-5127 and daraxonrasib
Up to Cycle 5 Day 1 (each cycle is up to 28 days)
Ratio of accumulation of RMC-5127
Up to Cycle 5 Day 1 (each cycle is up to 28 days)
Half-Life of RMC-5127 and daraxonrasib
Up to Cycle 5 Day 1 (each cycle is up to 28 days)
- +2 more secondary outcomes
Study Arms (3)
Arm A: RMC-5127 Monotherapy
EXPERIMENTALDose Escalation and Dose Expansion
Arm B: RMC-5127 + Daraxonrasib Combination
EXPERIMENTALDose Escalation and Dose Expansion
Arm C: RMC-5127 + Cetuximab Combination
EXPERIMENTALDose Escalation and Dose Expansion
Interventions
oral tablets
Eligibility Criteria
You may qualify if:
- At least 18 years old and has provided informed consent.
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
- Pathologically documented, locally advanced or metastatic KRAS G12V-mutated solid tumor malignancy.
- Received and progressed or been intolerant to prior standard therapy (including targeted therapy) appropriate for tumor type and stage.
- Measurable per RECIST v1.1
- Adequate organ function (bone marrow, liver, kidney, coagulation).
- Able to take oral medications.
You may not qualify if:
- Primary central nervous system (CNS) tumors
- Prior therapy with KRAS G12V inhibitor or direct RAS-targeted therapy (eg. degraders and/or inhibitors).
- Any conditions that may affect the ability to take or absorb study drug.
- Major surgery within 28 days prior to receiving study drug(s).
- Patient is unable or unwilling to comply with protocol-required study visits or procedures.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (5)
START Midwest
Grand Rapids, Michigan, 49546, United States
NEXT - Dallas
Dallas, Texas, 75039, United States
NEXT
San Antonio, Texas, 78229, United States
START - San Antonio
San Antonio, Texas, 78229, United States
NEXT - Virginia
Fairfax, Virginia, 22031, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 9, 2026
First Posted
January 16, 2026
Study Start
January 8, 2026
Primary Completion (Estimated)
April 1, 2028
Study Completion (Estimated)
October 1, 2028
Last Updated
February 4, 2026
Record last verified: 2026-02