Press Release

Ipsen adds another program into its pre-clinical R&D Oncology pipeline through an exclusive worldwide collaboration with Accent Therapeutics, targeting the RNA modifying protein, METTL3

  • Ipsen obtains an exclusive license to develop, manufacture and commercialize
    a pre-clinical stage METTL3-inhibitor program
  • Building on recent announcements, this collaboration with Accent Therapeutics reinforces Ipsen’s expansion into hematological malignancies, with a focus on acute myeloid leukemia


Paris (France), 18 October 2021 – Ipsen (Euronext: IPN; ADR: IPSEY) and Accent Therapeutics (Accent) have signed an exclusive worldwide-collaboration agreement to research, develop, manufacture, and commercialize Accent’s pre-clinical stage METTL3 program.


Acute myeloid leukemia (AML) is a difficult to treat cancer of the blood and bone marrow, accounting for a third of all new cases of leukemia in the US each year.1 Globally, the incidence of AML has been increasing year on year across the last 20 years.2 RNA modifying proteins (RMPs) are an emerging target class that control multiple aspects of RNA biology and represent a new approach for the potential treatment of various cancers. METTL3 is an RMP that has been validated pre-clinically as a novel therapeutic target for AML.1,3 This collaboration combines Accent’s expertise in RMP-targeting therapeutics with Ipsen’s capabilities and proven track record in Oncology medicine development and commercialization.


Christelle Huguet, Senior Vice President, Head of Research, External Innovation and Early Development, Ipsen, said “Oncology is a key focus area for Ipsen as we grow our pipeline. We are delighted to partner with Accent to progress the METTL3 program as we continue our expansion into hematologic oncology. Our teams are steadfast in our commitment to areas of high unmet medical need including rare cancers, so this collaboration is strongly aligned with Ipsen’s mission and strategy for growth.”


Shakti Narayan, Chief Executive Officer of Accent Therapeutics said “This collaboration blends Ipsen’s commitment to developing and commercializing transformative oncology medicines with Accent’s leading expertise in the field of RNA modification. As we focus on developing our rich pipeline of novel RMP-targeted therapies, we are pleased to entrust our METTL3 program to the innovative team at Ipsen to bring this novel investigational therapy to patients in need.”


Under the agreement, Ipsen will pay up to $446m, comprising upfront payment as well as pre-clinical, clinical, regulatory, and sales-based milestone payments, plus tiered sales royalties ranging from mid-single digits to low-double digits.




  1. American Cancer Society. Key statistics for Acute Myeloid Leukemia.
  2. Yin Dong, Oumin Shi, Quanxiang Zeng, Xiaoquin Lu, Wei Wang, Yong Li, Qi Wang, Yong Li and Qi Wang, Leukemia incidence trends at the global, regional, and national level between 1990 and 2017. Experimental Hematology & Oncology 9, Article number 14. 2020
  3. Shane M Buker, Zachary A Gurard-Levin, Benjamin D Wheeler, Michael D Scholle, April W Case, Jeffrey L Hirsch, Scott Ribich, Robert A Copeland, P Ann Boriack-Sjodin. A Mass Spectrometric Assay of METTL3/METTL14 Methyltransferase Activity. SLAS Discov. 2020 Apr;25(4):361-371. Epub 2019 Oct 4.
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