Imago BioSciences Announces First Patient Dosed at European Site in Phase 2b Clinical Trial of IMG-7289 for Treatment of Myelofibrosis

San Francisco, September 19, 2019 — Imago BioSciences, Inc., a clinical-stage biotechnology company developing innovative treatments for myeloid diseases, today announced that the first patient has been dosed at a European site in its Phase 2b clinical study evaluating IMG-7289 (bomedemstat) for the treatment of myelofibrosis.

The multi-center Phase 2b trial is evaluating the safety, tolerability, and efficacy of IMG-7289. Outcome measures include reduction in spleen volume based on MRI scans and assessment of total symptom scores throughout the study. The trial is an expansion of a Phase 2a safety and dose-range finding study in which IMG-7289 was generally well tolerated in a cohort of 18 patients. Evaluable patients showed a reduction in spleen size with a majority demonstrating a reduction in symptom scores. “Participation of European Investigators in this study takes advantage of the excellence in hematology that resides in Europe as well as their great experience as trialists. Their involvement will help us further advance, on a global scale, this novel agent as a treatment option for patients with myelofibrosis,” said Hugh Young Rienhoff, Jr. M.D., chief executive officer of Imago BioSciences. “This study is part of a broader effort in the evaluation of novel treatments for myeloid diseases.”

About IMG-7289

U.S. Food and Drug Administration (FDA) has granted Fast Track designation for the development of IMG-7289, which is a small molecule discovered by Imago BioSciences that inhibits lysine-specific demethylase 1 (LSD1 or KDM1A), an enzyme regulating cytokine expression, myeloid differentiation and sustaining self-renewal in malignant hematopoietic stem/progenitor cells. In non-clinical studies, IMG-7289 demonstrated robust in vivo efficacy as a single agent and in combination with other therapeutic agents across a range of myeloid malignancy models, including the myeloproliferative neoplasms, which encompass myelofibrosis, essential thrombocythemia and polycythemia vera. IMG-7289 also shows activity against solid tumors in combination with checkpoint inhibitor agents in non-clinical models. Additional clinical studies in myeloid diseases are under evaluation.

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. Imago is focused on improving the management of malignant and life-threatening diseases of the bone marrow. The company is currently focused on the myeloproliferative neoplastic disorders, myelofibrosis, essential thrombocythemia and polycythemia vera. The company is based in California.

Ian Stone
Canale Communications
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