Extension Study of Bomedemstat (IMG-7289) in Patients With Myeloproliferative Neoplasms

Inclusion Criteria:

Completed at least one Treatment Period (TP) in a prior bomedemstat MPN protocol (such as, but not limited to, IMG-7289-CTP-102 or IMG-7289-CTP-201).
In the estimation of the Investigator, the risk-benefit favors continued dosing with bomedemstat.

Exclusion Criteria:

Ongoing participation in another investigational study (except observational studies).
A history of non-compliance in a prior bomedemstat study (excluding dose suspensions that were medically warranted).
Current use of a prohibited medication (e.g., romiplostim).
Medical, psychiatric, cognitive, or other conditions that, in the Investigator's opinion, compromise the patient's safety, ability to give informed consent, or comply with the trial protocol.
Females who are pregnant or breastfeeding or plan to become pregnant or breastfeed during the study.
Women of childbearing potential (WOCBP) and fertile men unwilling to agree to use an approved method of contraception from time of enrollment until 14 days after last bomedemstat dose.