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IMG-7289

Phase 2

Essential Thrombocythemia | Small molecule | Hematology |Merck & Company, Inc.|Last Updated: Jan 7, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment4
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04262141IMG-7289 in Patients With Essential Thrombocythemia (ET) or Polycythemia Vera (PV)PHASE2 ACTIVE NOT_RECRUITING 4Oct 2, 2020Oct 31, 2027Jan 7, 20261 United States
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Study Endpoints
Primary Endpoints
Hematologic Response Rates
24 Weeks

As evaluated by the International Working Group-Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) and European Leukemia Net (ELN) response criteria.

Secondary Endpoints
Incidence of Treatment-Related Toxicity
Up to 3 Years
Change in Total Symptom Score (TSS) as Measured by the Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF)
Baseline, Up to 3 Years
Change in Mutational Allele Burden
Baseline, Up to 3 Years
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
IMG-7289 in ET and PV PatientsEXPERIMENTALOral daily dose of 0.6 mg/kg/day IMG-7289 will be administered: * The initial pilot period will enroll 8 participants to receive oral daily dose of IMG-7829 for 24 weeks, iteratively as long as there is clinical benefit in the absence of excess toxicity. * The second stage group will enroll an additional 16 participants to receive IMG-7829 for over 2 years, iteratively as long as there is clinical benefit in the absence of toxicity.
Interventions
NameTypeDescription
IMG-7289DRUGDaily oral dose of 0.6 mg/kg/day IMG-7829 capsules. Dose escalation an de-escalation rules applied as necessary.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Age ≥ 18 years. 2. Diagnosis of Essential Thrombocythemia or Polycythemia Vera per World Health Organization (WHO) diagnostic criteria for myeloproliferative neoplasms (Arber et al., 2016). 3. Patients that have failed at least one standard therapy (failure is the equivalent ...

Countries:United States
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Competitive Landscape -Essential Thrombocythemia 9 trials
Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT04262141primaryCompletionDate: changed
LOWMay 24, 2026NCT04262141studyFirstPostDate: changed