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INCB099280

Phase 2

Advanced Solid Tumor | Small molecule | Oncology |Incyte Corporation|Last Updated: Sep 2, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDDMC
Total Trials2
Total Enrollment255

FDA Designations

No designations recorded

Clinical trial landscape

INCB099280 · 4 trials · 13 indications

Phase 2 2Phase 1 2
NCT05879822A Study to Evaluate INCB099280 in Participants With Select Solid Tumors Who Are Immune Checkpoint Inhibitor NaiveAdvanced Solid Tumor
ACTIVE NOT_RECRUITING73 Analytics
NCT05888844A Study to Evaluate INCB099280 in Participants With Advanced Cutaneous Squamous Cell CarcinomaCutaneous Squamous Cell Carcinoma
ACTIVE NOT_RECRUITING63 Analytics
PHASE2ACTIVE NOT_RECRUITING
A Study to Evaluate INCB099280 in Participants With Select Solid Tumors Who Are Immune Checkpoint Inhibitor Naive
Advanced Solid TumorUnlock trial analytics
PHASE2ACTIVE NOT_RECRUITING
A Study to Evaluate INCB099280 in Participants With Advanced Cutaneous Squamous Cell Carcinoma
Cutaneous Squamous Cell CarcinomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Objective response rate (ORR)
Up to 2 years

Defined as the percentage of participants with a best overall response of complete response (CR) or partial response (PR), as determined by investigator radiographic disease assessment according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1.

Number of participants with Treatment-emergent Adverse Events (TEAEs)
Up to 2 years 3 months

Defined as any Adverse event either reported for the first time or worsening of a pre-existing event after first dose of study drug up to 90 days after the last dose of study drug or until the start of new anticancer therapy, whichever occurs first.

Number of participants with TEAEs leading to dose modification or discontinuation
Up to 2 years

Number of participants with TEAEs leading to dose modification or discontinuation.

Total Recovery (Urine + Feces) of the Administered Radioactivity
264 hours in urine; 408 hours in feces

Radioactivity in urine and feces was reported as the percentage of the administered radioactivity excreted.

Number of treatment-emergent adverse events
Up to approximately 25 months

Defined as any adverse event either reported for the first time or worsening of a pre-existing event after first dose of study drug up to 30 days after last dose of study drug.

Secondary Endpoints

Disease Control Rate (DCR)
Up to 2 years
Duration Of Response (DOR)
Up to 2 years
INCB099280 pharmacokinetic (PK) in Plasma
Pre dose and 1, 2 and 6 hours post dose on Cycle 1 Day 1 and Cycle 2 Day 1. Pre dose every other cycle until Cycle 11 Day 1 (Cycle 3 Day 1, Cycle 5 Day 1, Cycle 7 Day 1, Cycle 9 Day 1 and Cycle 11 Day 1) (each cycle is 28 days)
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part 1: INCB099280 Dose 1EXPERIMENTALParticipants will receive INCB099280 dose 1 twice daily (BID) for up to 2 years.
Part 1: INCB099280 Dose 2EXPERIMENTALParticipants will receive INCB099280 dose 2 twice daily (BID) for up to 2 years.
Part 1: INCB099280 Dose 3EXPERIMENTALParticipants will receive INCB099280 dose 3 twice daily (BID) for up to 2 years
Part 2: INCB099280 Dose selected from Part 1EXPERIMENTALParticipants will receive INCB099280 dose selected from Part 1 twice daily (BID) for up to 2 years.
INCB099280EXPERIMENTALParticipants will be administered INCB099280 tablet orally, followed approximately 10 minutes later by an oral dose solution of radiolabeled INCB099280.
Cohort 1EXPERIMENTALParticipants with select solid tumors who are immunotherapy treatment-naive
Cohort 2EXPERIMENTALParticipants with high microsatellite instability (MSI-H) or deficient mismatch repair (dMMR) tumors who are immunotherapy treatment-naïve.
Cohort 3EXPERIMENTALParticipants with progression of any solid tumor treated with an approved anti-PD-1 monoclonal antibody therapy

Interventions

NameTypeDescription
INCB099280DRUGAdministered as specified in the treatment arm description
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites54

Inclusion Criteria: * Immunotherapy naive and without access to approved and/or available immune checkpoint inhibitor (ICI) therapy. * Measurable disease per RECIST v1.1. * One of the following disease settings: * Unresectable or metastatic Child-Pugh Class A hepatocellular carcinoma (HCC) not e...

Countries:BrazilChinaGeorgiaGreeceHungaryNew ZealandRomaniaSouth AfricaTurkey (Türkiye)AustraliaCanadaChileCroatiaFranceMontenegroNorth MacedoniaSouth KoreaSpainUnited KingdomUnited StatesBelgiumJapan
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Competitive Landscape -Other Solid Tumors 9 trials (matched to "Advanced Solid Tumor")

Recent Changes (Last 90 Days)

LOWSep 2, 2026NCT05879822primaryCompletionDate: changed
LOWSep 2, 2026NCT05879822primaryCompletionDate: changed
LOWSep 2, 2026NCT05879822primaryCompletionDate: changed
LOWAug 17, 2026NCT05888844lastUpdatePostDate: changed
LOWAug 17, 2026NCT05888844lastUpdatePostDate: changed

Frequently asked questions about INCB099280

What is INCB099280 used for?

INCB099280 is an investigational small molecule being studied for the treatment of advanced solid tumors and cutaneous squamous cell carcinoma. It is also being evaluated in healthy participants for pharmacokinetic studies. The drug is in Phase 2 clinical development and is not yet approved by regulatory authorities.

Who makes INCB099280?

INCB099280 is being developed by Incyte Corporation, a biopharmaceutical company traded on the NASDAQ under the ticker symbol INCY. Incyte is conducting clinical trials to evaluate the safety and efficacy of this investigational oncology drug.

What phase is INCB099280 in?

INCB099280 is currently in Phase 2 clinical development. It has completed a Phase 1 trial in advanced solid tumors and has active Phase 2 trials in advanced solid tumors and cutaneous squamous cell carcinoma. The drug remains investigational and has not received FDA approval.

What clinical trials is INCB099280 in?

INCB099280 has been studied in several clinical trials. NCT04242199 was a completed Phase 1 trial in advanced solid tumors. NCT05879822 is an active Phase 2 trial in immune checkpoint inhibitor naive patients with advanced solid tumors. NCT05888844 is an active Phase 2 trial in cutaneous squamous cell carcinoma. NCT06309394 was a completed Phase 1 mass balance study in healthy participants.

Is INCB099280 the same as any other drug?

INCB099280 is the sole identifier for this investigational drug. No alternative names or brand names have been associated with this compound in the clinical trial data. It is being developed by Incyte Corporation as a unique small molecule oncology candidate.

How does INCB099280 work?

The mechanism of action for INCB099280 has not been disclosed in the available clinical trial information. It is being studied as a small molecule therapeutic for advanced solid tumors and cutaneous squamous cell carcinoma, but its specific molecular target has not been publicly detailed.