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BAY3375968

Phase 1

Advanced Solid Tumors | Small molecule | Oncology |Bayer AG|Trials Updated: Jul 7, 2026

BAY3375968 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Sep 2022

BAY3375968 target and mechanism

ModalitySmall molecule

Also known as Lanerkitug (INN)

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDBiomarker
Total Trials1
Total Enrollment129

FDA Designations

No designations recorded

BAY3375968 clinical trials

BAY3375968 · 1 trial · 1 indication

Phase 1 1
NCT05537740A First-in-human Study to Learn How Safe the Study Drug BAY3375968, an Anti-CCR8 Antibody, is, When Given Alone or in Combination With Pembrolizumab, How it Affects the Body, How it Moves Into, Through, and Out of the Body, and to Find the Best Dose in Participants With Advanced Solid TumorsAdvanced Solid Tumors
ACTIVE NOT_RECRUITING129 Analytics
PHASE1ACTIVE NOT_RECRUITING
A First-in-human Study to Learn How Safe the Study Drug BAY3375968, an Anti-CCR8 Antibody, is, When Given Alone or in Combination With Pembrolizumab, How it Affects the Body, How it Moves Into, Through, and Out of the Body, and to Find the Best Dose in Participants With Advanced Solid Tumors
Advanced Solid TumorsUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants with treatment-emergent adverse events (TEAEs) categorized by severity
First administration of study treatment up to 90 days after the last dose of study treatment
Maximum tolerated dose (MTD) or Maximum administered dose (MAD)
Up to 21 days
Number of participants experiencing dose-limiting toxicity (DLTs) at each dose level in the dose-escalation part of the study
Up to 21 days
Recommended dose for expansion (RDE)
Approximately 34 months
Peak plasma concentration after drug administration (Cmax) of BAY3375968
Up to 21 days after first drug administration
Area under the concentration-time curve (AUC) of BAY3375968
Up to 21 days after first drug administration

Secondary Endpoints

Objective response rate (ORR)
From start of treatment up to end of safety follow-up (90 days (±7 days) after the last administration of study treatment)
Fold change in serum IFN (Interferon)-γ in on-treatment compared with baseline serum samples
Approximately 60 months
Fold change in intratumor CD8+ T cell/Treg ratio in on-treatment compared with baseline tumor biopsies
Approximately 60 months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Dose escalation - Arm 1AEXPERIMENTALDose escalation of BAY3375968 as monotherapy
Dose escalation - Arm 1BEXPERIMENTALDose escalation of BAY 3375968 in combination with pembrolizumab
Dose expansion - Arm 2AEXPERIMENTALBAY3375968 monotherapy-mode-of-action (monotherapy-MoA) expansion in subjects with one of the following tumor types: NSCLC, TNBC, HNSCC, or melanoma. The tumors should have primary (ICI-refractory) or secondary (ICI-relapsed) resistance to prior ICI-therapy. The final decision on the enrolled tumor type is at the discretion of the Sponsor.
Dose expansion - Arm 2BEXPERIMENTALDisease-specific combination expansion with separate cohorts in ICI-relapsed tumor types (NSCLC, TNBC, HNSCC, gastric cancer, or melanoma)

Interventions

NameTypeDescription
BAY3375968DRUGIntravenous (IV) infusion
PembrolizumabDRUGIV infusion
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites26

Inclusion Criteria: * Capable of giving signed informed consent. * Has received, been intolerant to, or been ineligible for all treatment options proven to confer clinical benefit. * Measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1. * Eastern Cooperative Oncology Gro...

Countries:United StatesBelgiumCanadaChinaFranceSingaporeSpainUnited Kingdom
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Competitive Landscape -Other Solid Tumors 10 trials (matched to "Advanced Solid Tumors")

Frequently asked questions about BAY3375968

What is BAY3375968 used for?

BAY3375968 is an investigational therapy being studied for the treatment of advanced solid tumors. It is not approved for any indication and remains in clinical development. The Phase 1 trial enrolls adults with advanced solid tumors, including biomarker-selected patients, to evaluate safety and determine the best dose.

What does BAY3375968 target?

BAY3375968 targets CCR8, a receptor expressed on certain immune cells in the tumor microenvironment. By binding CCR8, the drug is designed to modulate immune activity against cancer cells. The Phase 1 study evaluates BAY3375968 alone and in combination with pembrolizumab in advanced solid tumors.

Who is developing BAY3375968?

BAY3375968 is being developed by Bayer AG, which trades on the OTC market under the ticker BAYRY. Bayer is the sole sponsor of the ongoing Phase 1 clinical trial for this asset.

What phase is BAY3375968 in?

BAY3375968 is in Phase 1 clinical development. It is an investigational small molecule and has not been approved by the FDA or any regulatory agency. The first-in-human study is currently active and not recruiting, with a planned enrollment of 129 participants.

What clinical trials is BAY3375968 in?

BAY3375968 is being evaluated in a single Phase 1 trial, NCT05537740. This first-in-human study is testing the drug alone and in combination with pembrolizumab in participants with advanced solid tumors. The trial is active but not recruiting and is being conducted in the United States, Belgium, Canada, China, France, Singapore, Spain, and the United Kingdom.