Imago Receives Fast Track Designation from U.S. FDA for Bomedemstat for Treatment of Essential Thrombocythemia

January 13, 2020 |

2 min read

Imago BioSciences, Inc. announced that the U.S. Food and Drug Administration has granted Fast Track designation for the development of bomedemstat for the treatment of essential thrombocythemia, a bone marrow disease associated with high platelet counts and potentially catastrophic vascular complications.

Jan. 13, 2020 13:00 UTC

SAN FRANCISCO--(BUSINESS WIRE)-- Imago BioSciences, Inc., a clinical-stage biotechnology company developing innovative treatments for myeloid diseases, today announced that the U.S. Food and Drug Administration (FDA) has granted Fast Track designation for the development of bomedemstat (IMG-7289) for the treatment of essential thrombocythemia (ET), a bone marrow disease associated with high platelet counts and potentially catastrophic vascular complications. Bomedemstat inhibits the enzyme LSD1 (lysine-specific demethylase 1), thus preventing excess platelet and neutrophil production.

“The Fast Track designation by the FDA recognizes the need for novel therapeutics for myeloid diseases and mirrors our own urgency in addressing these devastating conditions,” said Hugh Young Rienhoff, Jr. M.D., CEO, Imago Biosciences. “ET is a quiet bone marrow cancer than can linger for years. In a subset of patients, the excess of platelets leads to bleeding and clotting including strokes and infractions, each having a significant impact on these patients. With only one FDA approved therapy, one that does not increase overall survival, patients are in desperate need of new options. Based on its mechanism and safety data obtained to date, we believe bomedemstat has the promise to be that new treatment.”

The FDA grants Fast Track designation to facilitate development and expedite the review of therapies with the potential to treat a serious condition where there is an unmet medical need. A therapeutic that receives Fast Track designation can benefit from early and frequent communication with the agency, in addition to a rolling submission of the marketing application, with the objective of getting important new therapies to patients more quickly.

About Bomedemstat (IMG-7289)

Bomedemstat is a small molecule discovered by Imago BioSciences that inhibits lysine-specific demethylase 1 (LSD1 or KDM1A), an enzyme essential for production and normal function of megakaryocytes and for self-renewal of malignant hematopoietic stem or progenitor cells. Megakaryocytes are the primary producer of platelets and cytokines that drive essential thrombocythemia pathogenesis.

In non-clinical studies, bomedemstat demonstrated robust in vivo efficacy as a single agent, and in combination with other therapeutics across a range of myeloid malignancy models including the myeloproliferative neoplasms encompassing myelofibrosis, essential thrombocythemia and polycythemia vera.

The FDA has also granted Fast Track designation to bomedemstat for the treatment of myelofibrosis, which is currently being studied in an international Phase 2b study. In this study IMG-7289 was effective in reducing spleen volumes and substantially improved symptom scores in a majority of evaluable patients. For more information visit www.clinicaltrials.gov (NCT03136185). Additional clinical studies in hematologic disorders will begin in 2020.

About Imago BioSciences

Imago BioSciences is a clinical-stage, venture-backed pharmaceutical company whose investors include a fund managed by Blackstone Life Sciences, Frazier Healthcare Partners, Omega Funds, Amgen Ventures, MRL Ventures Fund, HighLight Capital, Pharmaron, Greenspring Associates and Xeraya Capital, as well as other corporate and venture investors.