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LY4052031

Phase 1

Metastatic Solid Tumor | Small molecule | Oncology |Eli Lilly and Company|Last Updated: Sep 4, 2026

Target and mechanism

Molecular targetNectin-4
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment420

FDA Designations

No designations recorded

Clinical trial landscape

LY4052031 · 1 trial · 14 indications

Phase 1 1
NCT06465069A Study of LY4052031 in Participants With Advanced or Metastatic Urothelial Cancer or Other Solid TumorsMetastatic Solid Tumor
RECRUITING420 Analytics
PHASE1RECRUITING
A Study of LY4052031 in Participants With Advanced or Metastatic Urothelial Cancer or Other Solid Tumors
Metastatic Solid TumorUnlock trial analytics

Study Endpoints

Primary Endpoints

Phase 1a: To determine the recommended phase 2 dose (RP2D) optimal dose(s) of LY4052031
Cycle 1 (21 Days)

Number of participants with dose-limiting toxicities (DLTs)

Phase 1b: To assess the antitumor activity of LY4052031 Monotherapy: Overall response rate (ORR)
Up to Approximately 48 Months or 4 Years

ORR per investigator assessed Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1)

Secondary Endpoints

To characterize the pharmacokinetics (PK) properties of LY4052031: Minimum Plasma Concentration (Cmin)
Cycle 1 (21 Days)
To characterize the PK properties of LY4052031: Area under the concentration versus time curve (AUC)
Cycle 1 (21 Days)
To evaluate the preliminary antitumor activity of LY4052031: Overall response rate (ORR)
Up to Approximately 48 Months or 4 Years
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
LY4052031 (Dose-escalation, Cohort A1)EXPERIMENTALEscalating doses of LY4052031 administered intravenously (IV).
LY4052031 (Dose-optimization, Cohort A2)EXPERIMENTALComparing 2 or more doses (evaluated during dose escalation) of LY4052031 administered IV.
LY4052031 (Dose-expansion, Cohort B1, B2, C1)EXPERIMENTALLY4052031 administered IV.

Interventions

NameTypeDescription
LY4052031DRUGIntravenous
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites39

Inclusion Criteria: * Have one of the following solid tumor cancers: * Cohort A1: urothelial carcinoma, triple negative breast cancer, non-small cell lung cancer, esophageal cancer, pancreatic cancer, ovarian cancer, cervical cancer (squamous cell carcinoma), head and neck squamous cell carcinom...

Countries:United StatesAustraliaChinaFranceJapanSouth KoreaSpainUnited Kingdom
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Competitive Landscape -Other Solid Tumors 9 trials (matched to "Metastatic Solid Tumor")

Recent Changes (Last 90 Days)

LOWSep 4, 2026NCT06465069lastUpdatePostDate: changed
LOWAug 24, 2026NCT06465069lastUpdatePostDate: changed
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LOWJul 27, 2026NCT06465069lastUpdatePostDate: changed
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LOWJul 20, 2026NCT06465069lastUpdatePostDate: changed
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LOWJul 7, 2026NCT06465069lastUpdatePostDate: changed
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Frequently asked questions about LY4052031

What is LY4052031 used for?

LY4052031 is an investigational small molecule being studied for the treatment of metastatic solid tumors, including advanced or metastatic urothelial cancer and other solid tumors such as triple negative breast cancer, non-small cell lung cancer, esophageal cancer, pancreatic cancer, ovarian cancer, cervical cancer, head and neck squamous cell carcinoma, prostate cancer, renal pelvis cancer, and bladder cancer.

What does LY4052031 target?

LY4052031 targets Nectin-4, a protein involved in cell adhesion that is expressed on the surface of certain tumor cells. By targeting Nectin-4, the drug is designed to interfere with tumor cell signaling and growth in cancers that express this protein.

Who is developing LY4052031?

LY4052031 is being developed by Eli Lilly and Company, a biopharmaceutical company traded on the NYSE under the ticker symbol LLY. The company is conducting clinical research to evaluate the safety and efficacy of this investigational therapy in patients with advanced or metastatic solid tumors.

What phase is LY4052031 in?

LY4052031 is currently in Phase 1 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities and is still being studied in clinical trials to assess its safety, tolerability, and potential efficacy in patients with metastatic solid tumors.

What clinical trials is LY4052031 in?

LY4052031 is being evaluated in a Phase 1 clinical trial with the identifier NCT06465069. This study is recruiting participants with advanced or metastatic urothelial cancer or other solid tumors and is being conducted in the United States, Australia, China, France, Japan, South Korea, Spain, and the United Kingdom.

Is LY4052031 the same as other Nectin-4 targeting drugs?

LY4052031 is a distinct investigational small molecule that targets Nectin-4. It is not the same as other Nectin-4 targeting therapies, such as antibody-drug conjugates, because it is a small molecule rather than an antibody-based therapy. Its specific chemical structure and mechanism of action differentiate it from other agents in this class.