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BAY3498264

Phase 1

Advanced Solid Tumors Harboring KRAS G12C Mutation | Small molecule | Oncology |Bayer AG|Last Updated: Aug 26, 2026

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment104

FDA Designations

No designations recorded

Clinical trial landscape

BAY3498264 · 1 trial · 1 indication

Phase 1 1
NCT06659341A Phase I Study of BAY3498264 Given Together With Sotorasib in Participants Who Have Advanced Solid Cancers With Specific Genetic Changes Called KRASG12C MutationAdvanced Solid Tumors Harboring KRAS G12C Mutation
RECRUITING104 Analytics
PHASE1RECRUITING
A Phase I Study of BAY3498264 Given Together With Sotorasib in Participants Who Have Advanced Solid Cancers With Specific Genetic Changes Called KRASG12C Mutation
Advanced Solid Tumors Harboring KRAS G12C MutationUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants with treatment-emergent adverse events (TEAEs) and treatment-emergent serious adverse events (TESAEs) categorized by severity.
30-35 days after the last dose
Maximum tolerated dose (MTD) or Maximum administered dose (MAD) of BAY 3498264 in combination with sotorasib.
Approximate 3 years
Number of participants with Dose-limiting toxicity (DLTs) during the DLT observation period categorized by severity.
DLT evaluation period (Cycle 1) includes 28 days
Maximum observed drug concentration in plasma (Cmax) of the respective dosing interval of BAY3498264 after single dose and multiple dose administrations.
Multiple time points: Cycle 1 28-day cycle followed by 21-day treatment cycles
Area under the concentration vs. time curve (AUC) of the respective dosing interval of BAY3498264 after single dose and multiple dose administrations.
Multiple time points: Cycle 1 28-day cycle followed by 21-day treatment cycles

Secondary Endpoints

Objective response rate (ORR) per Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST v1.1) by investigator assessment.
Every 6 weeks (±7 days) for the first 36 weeks and every 9 weeks (± 7 days) thereafter until radiological disease progression (PD) occurs
Recommended dose(s) and schedule(s) of BAY 3498264 to be used in combination with sotorasib for further development stages.
Approximate 3 years
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Dose escalationEXPERIMENTALDuring dose escalation, at each dose level BAY3498264 monotherapy will be administered for 7 days as a safety run-in, prior to introduction of a combination agent (sotorasib) for 21-day treatment cycles. Intra-participant dose escalation will be implemented: participants will be able to move to a cohort offering a higher dose level of BAY3498264 provided protocol-specified criteria are met.
Backfill cohortsEXPERIMENTALBackfill cohorts may be initiated concurrently with dose escalation cohorts to generate additional safety, PK, and PD data to facilitate the selection of the optimal doses for use in further development.
Exploratory expansion cohortsEXPERIMENTALExploratory expansion cohorts may be recruited to provide additional safety, PK/PD, and efficacy data.

Interventions

NameTypeDescription
BAY3498264DRUGOral
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites10

Inclusion Criteria: * Histologically confirmed solid tumor malignancy with documented KRAS\^G12C mutation as assessed by an appropriately accredited laboratory. * Documented disease progression after treatment with at least 1 prior standard of care (SoC) systemic therapy other than a G12C inhibitor...

Countries:AustraliaDenmarkItalySpainUnited Kingdom
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Recent Changes (Last 90 Days)

MEDIUMAug 26, 2026NCT06659341primaryCompletionDate: changed
MEDIUMAug 26, 2026NCT06659341primaryCompletionDate: changed
LOWAug 3, 2026NCT06659341Completion: 2027-06-15 → 2027-07-30

Frequently asked questions about BAY3498264

What is BAY3498264 used for?

BAY3498264 is an investigational small molecule being studied for the treatment of advanced solid tumors that harbor a KRAS G12C mutation. It is currently in Phase 1 clinical development and is not yet approved by regulatory authorities.

What does BAY3498264 target?

BAY3498264 is being studied in patients with advanced solid tumors that have a specific genetic change called the KRAS G12C mutation. It is given together with sotorasib, another KRAS G12C-targeted therapy, in a Phase 1 clinical trial.

Who is developing BAY3498264?

BAY3498264 is being developed by Bayer AG, a multinational pharmaceutical company. The company is conducting a Phase 1 clinical trial to evaluate the drug in combination with sotorasib for advanced solid tumors with the KRAS G12C mutation.

What phase is BAY3498264 in?

BAY3498264 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by the FDA or other regulatory agencies. The ongoing Phase 1 trial is currently recruiting participants.

What clinical trials is BAY3498264 in?

BAY3498264 is being studied in a Phase 1 clinical trial registered as NCT06659341. This trial evaluates BAY3498264 in combination with sotorasib in participants with advanced solid cancers harboring the KRAS G12C mutation. The trial is recruiting 104 participants across Australia, Denmark, Italy, Spain, and the United Kingdom.

Is BAY3498264 the same as sotorasib?

No, BAY3498264 is not the same as sotorasib. BAY3498264 is an investigational drug being developed by Bayer AG, while sotorasib is a separate KRAS G12C inhibitor. In the ongoing Phase 1 trial, BAY3498264 is being studied in combination with sotorasib.