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RecruitingNCT06128551Updated Sep 22, 2026

Study of Elironrasib and Daraxonrasib as Monotherapies and Combination Therapy in Participants With Advanced KRAS G12C Mutant Solid Tumors

A Phase 1/2 interventional study of Elironrasib and Daraxonrasib in Non-Small Cell Lung Cancer (NSCLC), Colorectal Cancer and Pancreatic Ductal Adenocarcinoma, sponsored by Revolution Medicines, Inc.. Recruiting at 56 sites in 7 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-22.

Sponsored by Revolution Medicines, Inc. · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Started Nov 2023; still recruiting 2 years 11 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
534
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is to evaluate the safety, tolerability, and PK profiles of Elironrasib and Daraxonrasib as monotherapies and combination therapy in patients with KRAS G12C-mutated solid tumors.

Read the detailed description

This is an open-label, multicenter, Phase 1b/2 study evaluating elironrasib and daraxonrasib, administered as monotherapy and in combination, in patients with advanced KRAS G12C-mutated solid tumors to determine the maximum tolerated dose (MTD), identify the recommended Phase 2 dose and schedule (RP2DS), and preliminarily assess antitumor activity.

The study includes a Phase 1b dose escalation and expansion of combination therapy, followed by a Phase 2 evaluation of the selected RP2DS as monotherapy and combination therapy to further assess safety and antitumor activity.

02

Conditions studied

  • Non-Small Cell Lung Cancer (NSCLC)
  • Colorectal Cancer
  • Pancreatic Ductal Adenocarcinoma

Keywords

  • RMC-6291
  • RAS (ON)
  • KRAS
  • KRASG12C
  • KRASG12C (ON)
  • Targeted therapy
  • Metastatic Cancer
  • Lung Cancer
  • Lung Neoplasms
  • Thoracic Neoplasms
  • Non-small Cell Lung Cancer
  • Carcinoma, Non-Small Cell Lung
  • NSCLC
  • Colorectal Cancer
  • Colonic Neoplasms
  • CRC
  • Appendiceal Cancer
  • KRAS mutation
  • STK11/LKB1
  • KEAP1
  • Bronchial neoplasms
  • Respiratory tract neoplasms
  • Neoplasms by site
  • Neoplasms
  • Colon Cancer
  • Rectal Cancer
  • Lung disease
  • Respiratory tract diseases
  • Pancreatic Cancer
  • Carcinoma, Pancreatic Ductal
  • PDAC
  • Gastrointestinal Neoplasms
  • Intestinal Neoplasms
  • Esophageal Cancer
  • Ampullary Cancer
  • Gastric Cancer
  • Gynecological Cancer
  • Ovarian Cancer
  • Endometrial Cancer
  • RMC-6236
  • Elironrasib
  • Daraxonrasib
03

In context

Carcinoma, Non-Small-Cell Lung

7,620 studies on the registry are indexed under Carcinoma, Non-Small-Cell Lung; 1,838 are open to participants now.

This study's planned enrollment of 534 is above the median of 62 across 6,019 interventional studies indexed under Carcinoma, Non-Small-Cell Lung.

Browse Carcinoma, Non-Small-Cell Lung studies →

Lead sponsor

Revolution Medicines, Inc. is the lead sponsor of 20 studies on the registry; 13 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 18 years of age
  • Histology: documented, KRAS G12C-mutated, advanced or solid tumors not amendable to curative therapy

    1. Phase 1b Dose Escalation: solid tumors, previously treated
    2. Phase 1b Dose Expansion and Phase 2:

    i. NSCLC, previously treated with immunotherapy, chemotherapy, and KRAS G12C (OFF) inhibitors ii. Solid tumors, previously treated, naïve to KRAS G12C (OFF) inhibitors.

  • performance status 0 or 1
  • Adequate organ function

Exclusion criteria

Exclusion Criteria:

  • Primary central nervous system (CNS) tumors
  • Active
  • Known impairment of GI function that would alter the absorption
  • Major surgical procedures within 28 days or non-study related minor procedures within 7 days of treatment
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
534 participants (estimated)

Study arms

  • Experimental
    Elironrasib Monotherapy

    Phase 2 only

    Drug: Elironrasib

  • Experimental
    Daraxonrasib Monotherapy

    Phase 2 only

    Drug: Daraxonrasib

  • Experimental
    Daraxonrasib + Elironrasib Combination

    Phase 1b and 2

    Drug: Elironrasib · Drug: Daraxonrasib

Interventions

06

What researchers measure

Primary outcomes

  1. Number of patients with adverse events (AEs) in Phase 1b

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

    Time frame: Up to approximately 3 years

  2. Changes in vital signs in Phase 1b

    Number of patients with clinically significant changes in vital signs

    Time frame: Up to approximately 3 years

  3. Changes in clinical laboratory test values in Phase 1b

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

    Time frame: Up to approximately 3 years

  4. Dose Limiting Toxicities in Phase 1b

    Number of participants with dose limiting toxicities

    Time frame: 21 days

  5. Changes in ECGs in Phase 1b

    Number of patients with clinically significant changes in ECGs

    Time frame: Up to approximately 3 years

  6. Overall Response Rate (ORR) in Phase 2

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

    Time frame: Up to approximately 3 years

Secondary outcomes

  1. Maximum Observed Blood Concentration of Elironrasib and Daraxonrasib

    Cmax

    Time frame: up to 21 weeks

  2. Time to Reach Maximum Blood Concentration of Elironrasib and Daraxonrasib

    Tmax

    Time frame: up to 21 weeks

  3. Area Under Blood Concentration Time Curve of Elironrasib and Daraxonrasib

    AUC

    Time frame: up to 21 weeks

  4. Elimination Half-Life of Elironrasib and Daraxonrasib

    t1/2

    Time frame: up to 21 weeks

  5. Ratio of accumulation of Elironrasib and Daraxonrasib from a single dose to steady state with repeated dosing

    accumulation ratio

    Time frame: up to 21 weeks

  6. Overall Response Rate (ORR) in Phase 1b

    Overall response rate per RECIST v1.1

    Time frame: Up to approximately 3 years

  7. Duration of Response (DOR)

    Duration of response per RECIST v1.1

    Time frame: Up to approximately 3 years

  8. Disease Control Rate in Phase 1b

    Disease Control rate per RECIST v1.1

    Time frame: Up to approximately 3 years

  9. Time to Response (TTR) in Phase 1b

    Time to response per RECIST v1.1

    Time frame: Up to approximately 3 years

  10. Progression-Free Survival (PFS)

    Progression-free survival per RECIST v1.1

    Time frame: Up to approximately 3 years

  11. Number of patients with AEs in Phase 2

    Incidence and severity of treatment-emergent AEs and serious AEs as assessed by CTCAE v5

    Time frame: Up to approximately 3 years

  12. Changes in vital signs in Phase 2

    Number of patients with clinically significant changes in vital signs

    Time frame: Up to approximately 3 years

  13. Changes in clinical laboratory values in Phase 2

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

    Time frame: Up to approximately 3 years

  14. Overall Survival (OS) in Phase 2

    OS is defined as time from enrollment until death from any cause

    Time frame: Up to approximately 3 years

07

Study locations

52 of 56 sites recruiting
08

References and documents

Publications

  • Cregg J, Edwards AV, Chang S, Lee BJ, Knox JE, Tomlinson ACA, Marquez A, Liu Y, Freilich R, Aay N, Wang Y, Jiang L, Jiang J, Wang Z, Flagella M, Wildes D, Smith JAM, Singh M, Wang Z, Gill AL, Koltun ES. Discovery of Daraxonrasib (RMC-6236), a Potent and Orally Bioavailable RAS(ON) Multi-selective, Noncovalent Tri-complex Inhibitor for the Treatment of Patients with Multiple RAS-Addicted Cancers. J Med Chem. 2025 Mar 27;68(6):6064-6083. doi: 10.1021/acs.jmedchem.4c02314. Epub 2025 Mar 8. PubMed 40056080 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Nov 2023 (actual). Primary completion is estimated for Dec 2028, 61 months after the start.

Of 308 industry-sponsored phase 1/2 interventional studies under Carcinoma, Non-Small-Cell Lung, half reached primary completion within 58 months of starting (the median), counting those still running; a quarter within 39 and three quarters within 77. This study's planned 61 months is close to that.

Counting every sponsor, half of 431 studies reached it within 63 months; a quarter within 42 and three quarters within 80.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 7, 2023
First posted
Nov 13, 2023
StartActual
Nov 14, 2023
Primary completionEst.
Dec 2028
CompletionEst.
Jun 2029
Last update
Sep 22, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 22, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06128551
Responsible party
Sponsor
First posted
Nov 13, 2023
Start date
Nov 14, 2023
Primary completion
Dec 2028 (estimated)
Completion
Jun 2029 (estimated)
Last update
Sep 22, 2026

Study contacts

Revolution Medicines, Inc.
Contact
medinfo@revmed.com
1-844-2-REVMED
Revolution Medicines, Inc.
study director · Revolution Medicines, Inc.

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Elironrasib · Daraxonrasib

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