A Study to Evaluate Safety and Efficacy of Bomedemstat (MK-3543-017)

NCT ID: NCT06351631

Last Updated: 2025-12-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

400 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-05-23

Study Completion Date

2034-12-04

Brief Summary

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The primary purpose of the study is to transition participants into an extension study to collect long-term safety and efficacy data. The study will include participants who are safely tolerating bomedemstat, receiving clinical benefit from its use in estimation of the investigator, and have shown the following criteria:

* Participants from the IMG-7289-202/MK-3543-005 (NCT05223920) study must have received at least 6 months of treatment with bomedemstat;
* Essential thrombocythemia (ET) and polycythemia vera (PV) participants from studies other than IMG-7289-202/MK-3543-005 must have achieved confirmed hematologic remission.

No hypothesis testing will be conducted in this study.

Detailed Description

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Conditions

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Thrombocythemia, Essential Primary Myelofibrosis Myelofibrosis Post-polycythemia Vera Myelofibrosis Post-essential Thrombocythemia Myelofibrosis Polycythemia Vera

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Bomedemstat

Participants will receive oral capsules of bomedemstat once daily for up to 10 years, with the starting dose as the same dose that the participant was on at the time of transition from the feeder study.

Group Type EXPERIMENTAL

Bomedemstat

Intervention Type DRUG

10, 15, 20, and 50 mg oral capsules

Interventions

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Bomedemstat

10, 15, 20, and 50 mg oral capsules

Intervention Type DRUG

Other Intervention Names

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MK-3543 IMG-7289

Eligibility Criteria

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Inclusion Criteria

* Is from a bomedemstat study sponsored by Imago BioSciences, Inc. (a subsidiary of Merck \& Co., Inc.) or MSD, and established by the Sponsor as MK-3543-017 ready
* Has received at least 6 months of treatment with bomedemstat in the IMG-7289-202/MK-3543-005 study, while safely tolerating bomedemstat, and receiving clinical benefit from its use in the estimation of the investigator
* ET and PV participants from established feeder studies other than IMG-7289- 202/MK-3543-005 must have achieved confirmed hematologic remission, must be safely tolerating bomedemstat, and must be receiving clinical benefit from its use in the estimation of the investigator
* Is not currently on a dose hold
* Participant must be able to swallow oral medication and follow instructions for at-home dosing of bomedemstat

Exclusion Criteria

* Has received prohibited concomitant medications
* Ongoing or planned participation in another investigational study
* Has noncompliance in prior bomedemstat study receiving \<90% of assigned doses excluding suspensions or holds as assigned by the investigator
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Merck Sharp & Dohme LLC

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Medical Director

Role: STUDY_DIRECTOR

Merck Sharp and Dohme LLC

Locations

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University of Michigan ( Site 6000)

Ann Arbor, Michigan, United States

Site Status RECRUITING

DUHS Duke Blood Cancer Center ( Site 6005)

Durham, North Carolina, United States

Site Status RECRUITING

UPMC Hillman Cancer Center ( Site 6004)

Pittsburgh, Pennsylvania, United States

Site Status RECRUITING

Royal Prince Alfred Hospital ( Site 1003)

Camperdown, New South Wales, Australia

Site Status RECRUITING

Royal North Shore Hospital ( Site 1001)

St Leonards, New South Wales, Australia

Site Status RECRUITING

Sunshine Coast Hematology and Oncology Clinic ( Site 1006)

Buderim, Queensland, Australia

Site Status RECRUITING

Gold Coast University Hospital-Cancer and Blood Disorders Clinical Trial Team ( Site 1002)

Southport, Queensland, Australia

Site Status RECRUITING

Royal Adelaide Hospital-Haematology Clinical Trials Unit ( Site 1000)

Adelaide, South Australia, Australia

Site Status RECRUITING

Monash Health ( Site 1004)

Clayton, Victoria, Australia

Site Status RECRUITING

Queen Mary Hospital ( Site 1601)

Hksar, , Hong Kong

Site Status ACTIVE_NOT_RECRUITING

Azienda Ospedaliero-Universitaria SS. Antonio e Biagio e Cesare Arrigo ( Site 2703)

Alessandria, Ancona, Italy

Site Status RECRUITING

Azienda Ospedaliera Universitaria Careggi ( Site 2700)

Florence, Tuscany, Italy

Site Status RECRUITING

IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico di Sant'Orsola ( Site 2702)

Bologna, , Italy

Site Status RECRUITING

Ospedale di Circolo e Fondazione Macchi Varese ( Site 2701)

Varese, , Italy

Site Status RECRUITING

North Shore Hospital-Department of Haematology ( Site 1401)

Auckland, , New Zealand

Site Status ACTIVE_NOT_RECRUITING

Aotearoa Clinical Trials ( Site 1400)

Auckland, , New Zealand

Site Status ACTIVE_NOT_RECRUITING

Imperial College Healthcare NHS Trust - Hammersmith Hospital ( Site 3402)

London, Hammersmith and Fulham, United Kingdom

Site Status RECRUITING

Boston Pilgrim Hospital ( Site 3403)

Boston, Lincolnshire, United Kingdom

Site Status RECRUITING

University College London Hospital ( Site 3400)

London, London, City of, United Kingdom

Site Status RECRUITING

Guy's & St Thomas' NHS Foundation Trust ( Site 3401)

London, London, City of, United Kingdom

Site Status RECRUITING

Countries

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United States Australia Hong Kong Italy New Zealand United Kingdom

Central Contacts

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Toll Free Number

Role: CONTACT

Phone: 1-888-577-8839

Email: [email protected]

Facility Contacts

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Study Coordinator

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Study Coordinator

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Study Coordinator

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Study Coordinator

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Study Coordinator

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Study Coordinator

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Related Links

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Other Identifiers

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3543-017

Identifier Type: -

Identifier Source: org_study_id

2023-506996-89-00

Identifier Type: REGISTRY

Identifier Source: secondary_id

U1111-1294-8621

Identifier Type: REGISTRY

Identifier Source: secondary_id

MK-3543-017

Identifier Type: OTHER

Identifier Source: secondary_id