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INCB160058

Phase 1

Healthy Participants | Small molecule | Other |Incyte Corporation|Last Updated: Aug 12, 2026

Target and mechanism

Molecular targetJAK2V617F
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials1
Total Enrollment137

FDA Designations

No designations recorded

Clinical trial landscape

INCB160058 · 2 trials · 2 indications

Phase 1 2
NCT06313593A Study to Evaluate the Safety, Tolerability of INCB160058 in Participants With Myeloproliferative NeoplasmsMyeloproliferative Neoplasms
ACTIVE NOT_RECRUITING37 Analytics
NCT06213818A Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of INCB160058 When Administered Orally to Healthy Adult ParticipantHealthy Participants
COMPLETED137 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Study to Evaluate the Safety, Tolerability of INCB160058 in Participants With Myeloproliferative Neoplasms
Myeloproliferative NeoplasmsUnlock trial analytics
PHASE1COMPLETED
A Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of INCB160058 When Administered Orally to Healthy Adult Participant
Healthy ParticipantsUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants with Dose Limiting Toxicities (DLTs)
Up to 28 days

Dose-limiting toxicity will be defined as the occurrence of any of the toxicities as per protocol.

Number of participants with Treatment-emergent Adverse Events (TEAEs)
Up to 2 years and 30 days

Defined as adverse events reported for the first time or worsening of a pre-existing event after first dose of study drug.

Number of participants with TEAEs leading to dose modification or discontinuation
Up to 2 years and 30 days

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

Number of participants with Treatment Emergent Adverse Events (TEAEs)
Up to Day 28

Defined as adverse events reported for the first time or worsening of a pre-existing event after first dose of study drug.

INCB160058 pharmacokinetic (PK) when administered as solid tablets in Plasma
Up to Day 5

INCB160058 concentration in plasma.

INCB160058 pharmacokinetic (PK) when administered as a soft gel capsule in Plasma
Up to Day 5

INCB160058 concentration in plasma.

INCB160058 pharmacokinetic (PK) when administered as ASD tablets in Plasma
Up to Day 5

INCB160058 concentration in plasma.

INCB160058 pharmacokinetic (PK) in Plasma to determine the effect of food administered as solid tablets
Up to Day 12

INCB160058 concentration in plasma.

INCB160058 pharmacokinetic (PK) in Plasma to determine the effect of food administered as ASD tablets
Up to Day 12

INCB160058 concentration in plasma.

INCB160058 pharmacokinetic (PK) in Plasma to assess the effect of esomeprazole administered as solid tablets
Up to Day 14

INCB160058 concentration in plasma.

INCB160058 pharmacokinetic (PK) in Plasma to assess the effect of esomeprazole administered as ASD tablets
Up to Day 14

INCB160058 concentration in plasma.

INCB160058 pharmacokinetic (PK) in Plasma to assess the effect of famotidine administered as solid tablets
Up to Day 14

INCB160058 concentration in plasma.

INCB160058 pharmacokinetic (PK) in Plasma to assess the effect of famotidine administered as ASD tablets
Up to Day 14

INCB160058 concentration in plasma.

Secondary Endpoints

INCB160058 and a standard disease-directed therapy pharmacokinetic (PK) in Plasma
Up to Day 57
For participants with MF: Response using the revised IWG-MRT and ELN response criteria for MF
Week 12 and 24 and then every 24 weeks up to 2 years
For participants with MF: Percentage of participants achieving spleen volume reduction as defined in the protocol
Week 12 and Week 24
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part 1 Dose Escalation - with MF, PV or ETEXPERIMENTALINCB160058 will be administered at a protocol defined starting regimen to identify the maximum tolerated dose (MTD) and/or recommended dose for expansion (RDE\[s\]). Participants with myelofibrosis (MF), polycythemia vera (PV) or essential thrombocythemia (ET) will enroll in this group.
Part 1 Dose Escalation - with MF SubOpt REXPERIMENTALINCB160058 will be administered at a protocol defined starting regimen and will allow for the evaluation of INCB160058 in combination with a standard disease-directed therapy to identify the maximum tolerated dose (MTD) and/or recommended dose for expansion (RDE\[s\]). Participants with myelofibrosis (MF), suboptimal response to a standard disease-directed therapy (SubOpt R) will enroll in this group.
Part 2 Dose Expansion - with MF, PV or ETEXPERIMENTALINCB160058 will be administered at the RDE(s) identified during Part 1. Participants with MF, PV or ET will enroll in this group.
Part 2 Dose Expansion - with MF SubOpt REXPERIMENTALINCB160058 will be administered as an add-on therapy in combination with a standard disease-directed therapy at the RDE(s) identified during Part 1. Participants with myelofibrosis (MF), suboptimal response to a standard disease-directed therapy (SubOpt R) will enroll in this group.
Cohort 1: DoseEXPERIMENTALINCB160058 or placebo will be administered at protocol defined dose after an overnight fast.
Cohort 2: DoseEXPERIMENTALINCB160058 or placebo will be administered at protocol defined dose after an overnight fast.
Cohort 3: DoseEXPERIMENTALINCB160058 or placebo will be administered at protocol defined dose after an overnight fast.
Cohort 4: DoseEXPERIMENTALINCB160058 or placebo will be administered at protocol defined dose after an overnight fast.
Cohort 5: DoseEXPERIMENTALINCB160058 or placebo will be administered at protocol defined dose after an overnight fast.
Cohort 6: Dose Treatment AEXPERIMENTALINCB160058 will be administered at protocol defined dose after an overnight fast.
Cohort 6: Dose Treatment BEXPERIMENTALINCB160058 will be administered at protocol defined dose after a high-fat, high-calorie meal.
Cohort 7: DoseEXPERIMENTALINCB160058 and esomeprazole will be administered at protocol defined schedule and dose.
Cohort 8: DoseEXPERIMENTALINCB160058 will be administered at protocol defined dose after an overnight fast.
Cohort 9: DoseEXPERIMENTALINCB160058 or placebo will be administered at protocol defined dose after an overnight fast.
Cohort 10: Dose Treatment AEXPERIMENTALINCB160058 will be administered at protocol defined dose after an overnight fast.
Cohort 10: Dose Treatment BEXPERIMENTALINCB160058 will be administered at protocol defined dose after a high-fat, high-calorie meal.
Cohort 11: DoseEXPERIMENTALINCB160058 and esomeprazole will be administered at protocol defined schedule and dose.
Cohort 12: DoseEXPERIMENTALINCB160058 and famotidine will be administered at protocol defined schedule and dose.
Cohort 13: DoseEXPERIMENTALINCB160058 or placebo will be administered at protocol defined dose after an overnight fast.
Cohort 14: DoseEXPERIMENTALINCB160058 and famotidine will be administered at protocol defined schedule and dose.
Cohort 15: DoseEXPERIMENTALINCB160058 or placebo will be administered at protocol defined dose after an overnight fast.

Interventions

NameTypeDescription
INCB160058DRUGOral; Tablet
Standard disease-directed therapyDRUGA standard disease-directed therapy will be administered according to Prescribing Information/SmPC.
PlaceboDRUGOral; Tablet
EsomeprazoleDRUGOral; Delayed-release capsule or tablet
FamotidineDRUGOral; Tablet
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites30

Inclusion Criteria: * Age ≥ 18 years * MF: * Intermediate-1 or higher risk PMF, post-PV MF, or post-ET MF with evidence of minimum burden of disease based on splenomegaly, and for the monotherapy cohort, participants must have been previously treated with at least 1 JAK inhibitor for ≥ 12 weeks ...

Countries:United StatesCanadaFranceGermanyItalyNorwaySwitzerlandUnited KingdomAustralia
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Recent Changes (Last 90 Days)

HIGHAug 12, 2026NCT06313593Status: RECRUITING → ACTIVE_NOT_RECRUITING
HIGHAug 12, 2026NCT06313593Status: RECRUITING → ACTIVE_NOT_RECRUITING

Frequently asked questions about INCB160058

What is INCB160058 used for?

INCB160058 is an investigational small molecule being studied for use in healthy participants and in patients with myeloproliferative neoplasms (MPNs). It is currently in Phase 1 clinical development, with trials evaluating its safety, tolerability, and pharmacokinetics when administered orally.

What does INCB160058 target?

INCB160058 targets the JAK2V617F mutation, a specific genetic alteration associated with myeloproliferative neoplasms. By targeting this mutated kinase, the drug is designed to interfere with the signaling pathways that drive abnormal blood cell production in these conditions.

Who is developing INCB160058?

INCB160058 is being developed by Incyte Corporation, a biopharmaceutical company traded on the NASDAQ under the ticker symbol INCY. The company is conducting Phase 1 clinical trials to evaluate the drug's safety and tolerability in healthy participants and in patients with myeloproliferative neoplasms.

What phase is INCB160058 in?

INCB160058 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities and is still undergoing early-stage clinical trials to assess its safety, tolerability, and pharmacokinetics in humans.

What clinical trials is INCB160058 in?

INCB160058 is being evaluated in two Phase 1 clinical trials. NCT06213818 is a completed study in healthy adult participants in Australia, with 137 enrolled. NCT06313593 is an active, not recruiting study in patients with myeloproliferative neoplasms across multiple countries, with 37 enrolled.

Is INCB160058 the same as any other drug?

No alternative names for INCB160058 have been disclosed. The drug is identified solely by its development code INCB160058, and no other names or aliases are currently associated with it in clinical trial registries.