Recent Updates
Recently added Catalysts

Elironrasib

Phase 1

Non-Small Cell Lung Cancer (NSCLC) | Small molecule | Oncology |Revolution Medicines, Inc.|Last Updated: Sep 22, 2026

Development status

Highest phase Phase 1
Registered trials 2 across 1 sponsor since Nov 2023

Target and mechanism

Molecular targetKRAS G12C
Target classProtein
ModalitySmall molecule

Also known as RMC-6291

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLED
Total Trials2
Total Enrollment756

FDA Designations

BREAKTHROUGH_THERAPY

Clinical trial landscape

Elironrasib · 3 trials · 10 indications

Phase 1 3
NCT06162221Study of RAS(ON) Inhibitors in Patients With Advanced RAS-mutated NSCLCNon-Small Cell Lung Cancer, NSCLC
RECRUITING616 Analytics
NCT06128551Study of Elironrasib and Daraxonrasib as Monotherapies and Combination Therapy in Participants With Advanced KRAS G12C Mutant Solid TumorsNon-Small Cell Lung Cancer (NSCLC)
RECRUITING534 Analytics
NCT05462717Dose Escalation and Dose Expansion Study of RMC-6291 Monotherapy in Subjects With Advanced KRASG12C Mutant Solid TumorsNon-Small Cell Lung Cancer (NSCLC)
ACTIVE NOT_RECRUITING222 Analytics
PHASE1RECRUITING
Study of RAS(ON) Inhibitors in Patients With Advanced RAS-mutated NSCLC
Non-Small Cell Lung Cancer, NSCLCUnlock trial analytics
PHASE1RECRUITING
Study of Elironrasib and Daraxonrasib as Monotherapies and Combination Therapy in Participants With Advanced KRAS G12C Mutant Solid Tumors
Non-Small Cell Lung Cancer (NSCLC)Unlock trial analytics
PHASE1ACTIVE NOT_RECRUITING
Dose Escalation and Dose Expansion Study of RMC-6291 Monotherapy in Subjects With Advanced KRASG12C Mutant Solid Tumors
Non-Small Cell Lung Cancer (NSCLC)Unlock trial analytics

Study Endpoints

Primary Endpoints

Adverse events
Up to 5 years

Incidence and severity of treatment-emergent Adverse Events (AEs) and serious AEs and clinically significant changes in laboratory values, ECGs and vital signs

Dose limiting toxicities
21 days

Number of participants with dose limiting toxicities

Number of patients with adverse events (AEs) in Phase 1b
Up to approximately 3 years

Incidence and severity of treatment-emergent AEs and serious AEs as assessed by Common Terminology Criteria for Adverse Events (CTCAE) v5

Changes in vital signs in Phase 1b
Up to approximately 3 years

Number of patients with clinically significant changes in vital signs

Changes in clinical laboratory test values in Phase 1b
Up to approximately 3 years

Number of patients with clinically significant changes in clinical laboratory test values

Dose Limiting Toxicities in Phase 1b
21 days

Number of participants with dose limiting toxicities

Changes in ECGs in Phase 1b
Up to approximately 3 years

Number of patients with clinically significant changes in ECGs

Overall Response Rate (ORR) in Phase 2
Up to approximately 3 years

Overall response rate per RECIST v1.1 as assessed by blinded independent central review (BICR)

Secondary Endpoints

Drug concentrations over time
Up to 21 weeks
Cmax
Up to 21 weeks
Tmax
Up to 21 weeks
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Subprotocol A: KRAS G12C-Mutated Solid TumorsEXPERIMENTALRMC-6291 (BID), RMC-6236 (QD), and Pembrolizumab (Q3W) with or without Chemotherapy (Q3W)
Subprotocol B: RAS-mutated NSCLCEXPERIMENTALRMC-6236 (QD) and Pembrolizumab (Q3W) with or without Chemotherapy (Q3W)
Subprotocol C: RAS G12D-mutated NSCLCEXPERIMENTALRMC-9805 (QD or BID), RMC-6236 (QD), and Pembrolizumab (Q3W) with or without Chemotherapy (Q3W).
Subprotocol D: RAS G12D-mutated NSCLCEXPERIMENTALRMC-9805 (QD)
Elironrasib MonotherapyEXPERIMENTALPhase 2 only
Daraxonrasib MonotherapyEXPERIMENTALPhase 2 only
Daraxonrasib + Elironrasib CombinationEXPERIMENTALPhase 1b and 2
RMC-6291EXPERIMENTALDose Escalation and Dose Expansion

Interventions

NameTypeDescription
RMC-6291DRUGOral tablet
RMC-6236DRUGOral tablet
PembrolizumabDRUGIV Infusion
CisplatinDRUGIV Infusion
CarboplatinDRUGIV Infusion
PemetrexedDRUGIV infusion
RMC-9805DRUGOral Tablet
ElironrasibDRUGoral tablets
DaraxonrasibDRUGoral tablets
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites93

Inclusion criteria: All Patients (unless otherwise noted): * ≥ 18 years of age * ECOG PS is 0 to 1 * Adequate organ function as outlined by the study * Received prior standard therapy appropriate for tumor type and stage * Must have pathologically documented, locally advanced or metastatic KRAS G1...

Countries:United StatesAustraliaAustriaCzechiaDenmarkFranceGermanyGreeceItalyNetherlandsSouth KoreaSpainTaiwanPuerto RicoMalaysiaPolandSerbiaSingaporeThailand
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

LOWSep 22, 2026NCT06128551lastUpdatePostDate: changed
LOWSep 22, 2026NCT06128551lastUpdatePostDate: changed
LOWAug 3, 2026NCT06128551lastUpdatePostDate: changed

Frequently asked questions about Elironrasib

What is Elironrasib used for?

Elironrasib is an investigational small molecule being studied for the treatment of advanced KRAS G12C-mutant solid tumors, with a primary focus on non-small cell lung cancer (NSCLC). It is also being evaluated in colorectal cancer and pancreatic ductal adenocarcinoma. Elironrasib has not been approved by the FDA and remains in clinical development.

What does Elironrasib target?

Elironrasib targets KRAS G12C, a mutant form of the KRAS protein. KRAS G12C is a driver mutation found in several solid tumors, including non-small cell lung cancer. By binding this target, Elironrasib is designed to inhibit RAS signaling that promotes tumor growth.

Who is developing Elironrasib?

Elironrasib is being developed by Revolution Medicines, Inc., which trades on the Nasdaq under the ticker RVMD. The company is running the clinical program for Elironrasib as both a monotherapy and in combination with daraxonrasib in patients with advanced KRAS G12C-mutant solid tumors.

What phase is Elironrasib in?

Elironrasib is in Phase 1 clinical development. It is investigational and has not been approved by the FDA. The Phase 1 program includes dose escalation and dose expansion studies evaluating Elironrasib as a monotherapy and in combination therapy in patients with advanced KRAS G12C-mutant solid tumors.

What clinical trials is Elironrasib in?

Elironrasib is being evaluated in three Phase 1 trials: NCT06162221, a study of RAS(ON) inhibitors in advanced RAS-mutated NSCLC; NCT06128551, a study of Elironrasib and daraxonrasib as monotherapies and combination therapy in advanced KRAS G12C-mutant solid tumors; and NCT05462717, a dose escalation and expansion study of RMC-6291 monotherapy.

Is Elironrasib the same as RMC-6291?

Yes, Elironrasib is also known as RMC-6291. RMC-6291 is the earlier code name used for the same investigational KRAS G12C-targeted compound, and it appears under that name in the Phase 1 monotherapy trial NCT05462717. Both names refer to the same drug candidate being developed by Revolution Medicines.