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IMG-7289

Phase 2

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

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment4

FDA Designations

No designations recorded

Clinical trial landscape

IMG-7289 · 2 trials · 3 indications

Phase 2 2
NCT04262141IMG-7289 in Patients With Essential Thrombocythemia (ET) or Polycythemia Vera (PV)Essential Thrombocythemia
ACTIVE NOT_RECRUITING4 Analytics
NCT04081220Hematology, IMG-7289, LSD1 (Lysine-Specific Demethylase 1) Inhibitor, Essential Thrombocythemia (ET), Ph 2Thrombocythemia, Essential
ACTIVE NOT_RECRUITING9 Analytics
PHASE2ACTIVE NOT_RECRUITING
IMG-7289 in Patients With Essential Thrombocythemia (ET) or Polycythemia Vera (PV)
Essential ThrombocythemiaUnlock trial analytics
PHASE2ACTIVE NOT_RECRUITING
Hematology, IMG-7289, LSD1 (Lysine-Specific Demethylase 1) Inhibitor, Essential Thrombocythemia (ET), Ph 2
Thrombocythemia, EssentialUnlock trial analytics

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.

The Proportion of Patients Who Achieve Complete Hematologic Remission at Week 24 Using ELN Response Criteria for ET (Barosi et al., 2013)
24 weeks

ELN 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.
IMG-7289EXPERIMENTAL -

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 to 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

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Frequently asked questions about IMG-7289

What is IMG-7289 used for in essential thrombocythemia?

IMG-7289 is an investigational small molecule being studied for the treatment of essential thrombocythemia (ET), a blood disorder characterized by an elevated platelet count. It is currently in Phase 2 clinical development for this condition. The drug is also being investigated in patients with polycythemia vera (PV), another myeloproliferative neoplasm.

What does IMG-7289 target?

IMG-7289 targets LSD1 (lysine-specific demethylase 1), an enzyme involved in epigenetic regulation. By inhibiting LSD1, the drug may alter gene expression related to blood cell production. This mechanism is being explored in essential thrombocythemia and polycythemia vera, where abnormal blood cell proliferation occurs.

Who is developing IMG-7289?

IMG-7289 is being developed by Merck & Company, Inc., a global biopharmaceutical company listed on the New York Stock Exchange under the ticker symbol MRK. The drug is currently in Phase 2 clinical trials for hematologic conditions, including essential thrombocythemia.

What phase is IMG-7289 in?

IMG-7289 is in Phase 2 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The ongoing trials are active but not recruiting participants, indicating that enrollment has been completed and the studies are continuing to evaluate the drug's safety and efficacy.

What clinical trials is IMG-7289 in?

IMG-7289 is being studied in two Phase 2 clinical trials. NCT04081220 is evaluating the drug in patients with essential thrombocythemia, with an enrollment of 9 participants. NCT04262141 is investigating IMG-7289 in patients with essential thrombocythemia or polycythemia vera, with an enrollment of 4 participants. Both trials are active but not recruiting.

Is IMG-7289 the same as bomedemstat?

IMG-7289 is also known as bomedemstat, an alternative name for the drug. It is an LSD1 inhibitor being developed by Merck & Company, Inc. for the treatment of myeloproliferative neoplasms, including essential thrombocythemia and polycythemia vera.