Skip to content

A Phase 1 Study of MRTX0902 in Solid Tumors With Mutations in the KRAS MAPK Pathway

A Phase 1 Multiple Expansion Cohort Trial of the SOS1 Inhibitor MRTX0902 in Patients With Advanced Solid Tumors Harboring Mutations in the KRAS MAPK Pathway

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05578092
Enrollment
64
Registered
2022-10-13
Start date
2022-12-02
Completion date
2026-02-03
Last updated
2026-02-19

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

Conditions

Solid Tumor, Advanced Solid Tumor, Non Small Cell Lung Cancer, Colo-rectal Cancer

Keywords

Non Small Cell Lung Cancer, NSCLC, Colorectal Cancer, CRC, EGFR, KRAS, SOS1, Solid Tumor, Advanced Solid Tumor, Malignant

Brief summary

This is a Phase 1, open-label, multicenter, study evaluating the safety, tolerability, PK, PD, and anti-tumor activity of MRTX0902 alone and in combination with MRTX849 (adagrasib) in patients with advanced solid tumor malignancy harboring mutations in the KRAS-MAPK pathways.

Detailed description

This first-in-human clinical trial will begin with an exploration of MRTX0902 dose and regimen. Once safety experience and PK data are available for the monotherapy regimen, dose escalation of the combination of MRTX0902 and adagrasib will be initiated, and will include a separate preliminary food effect assessments on MRTX0902 PK in combination with adagrasib. As potentially viable regimens are identified, Phase 1b expansion cohorts may be implemented to ensure collection of sufficient safety and PK information.

Interventions

DRUGMRTX0902

SOS1 inhibitor

KRAS G12C inhibitor

Sponsors

Mirati Therapeutics Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Histologically confirmed diagnosis of a solid tumor malignancy with any of the following oncogenic mutations detected in tumor tissue or ctDNA by a sponsor-approved test: 1. MRTX0902 monotherapy: known KRAS mutations, known annotated recurrent activating SOS1, PTPN11, class III BRAF, or EGFR mutation, or known annotated recurrent inactivating NF1 mutation; 2. MRTX0902 and adagrasib combination therapy: KRAS G12C mutation. * Unresectable or metastatic disease * No available treatment with curative intent; standard treatment is not available or patient declines * Presence of tumor lesions to be evaluated per RECIST 1.1. Phase 1 dose escalation, RECIST 1.1 measurable or evaluable disease * Presence of a tumor lesion amenable to mandatory biopsy for pharmacodynamic evaluation at baseline and on-study unless Sponsor-confirmed as medically unsafe or infeasible. * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. * Adequate organ function

Exclusion criteria

* Active brain metastases or carcinomatous meningitis * Prior treatment with a KRAS G12C inhibitor (for Phase 1b expansion for MRTX0902 and adagrasib combination). * History of significant hemoptysis or hemorrhage within 4 weeks of the first dose of study treatment. * Major surgery within 4 weeks of first dose of study treatment * History of pneumonitis or interstitial lung disease * Ongoing need for medication with following characteristics: substrate of CYP3A; strong inducer or inhibitor or CYP3A and/or P-gp; strong inhibitors of BRCP and proton pump inhibitors * Cardiac abnormalities * History of intestinal disease, inflammatory bowel disease, major gastric surgery, or other gastrointestinal conditions (eg, uncontrolled nausea, vomiting, malabsorption syndrome) likely to alter absorption of study treatment or result in inability to swallow oral medications

Design outcomes

Primary

MeasureTime frame
Number of Patients who Experience Dose-Limiting Toxicity21 Days
Number of patients who experience a treatment-related adverse eventUp to 2 years

Secondary

MeasureTime frameDescription
Area under the plasma concentration versus time curveUp to 4 daysAUC - MRTX0902 and adagrasib
Time to achieve maximal plasma concentrationUp to 4 daysTmax - MRTX0902 and adagrasib
Maximum observed plasma concentrationUp to 4 daysCmax - MRTX0902 and adagrasib
Terminal elimination half-lifeUp to 4 dayst1/2 - MRTX0902
Apparent total plasma clearance when dosed orallyUp to 4 daysCL/F - MRTX0902
Apparent volume of distribution when dosed orallyUp to 4 daysVz/F - MRTX0902

Countries

Puerto Rico, United States

Contacts

STUDY_DIRECTORBristol-Myers Squibb

Bristol-Myers Squibb

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026