Debiopharm Archives

Debiopharm, an independent Swiss-based, biopharmaceutical company, has obtained the global rights for FT-3171, a small molecule USP1 inhibitor program targeting a novel DNA damage repair (DDR) pathway from Novo Nordisk. FT-3171 was developed by Forma Therapeutics, which was acquired by Novo Nordisk in 2022, and is currently in late preclinical development. FT-3171 (Debio 0432) could potentially be deployed to combat multiple tumor types in poly ADP ribose pathway inhibitor-sensitive and resistant settings. This new pipeline entry will join WEE1-inhibitor Debio 0123. Debiopharm aims to improve cancer patients' treatment response and overcome treatment resistance to current therapies. "In 2017, Debiopharm dove into the DDR inhibitor field, firstly through its WEE1-inhibitor Debio 0123 and now through this innovative asset, targeting USP1. We are eager to establish the research necessary to bring this product to the clinical phase," said Angela Zubel, chief development officer at Debiopharm. "Leveraging the principle of synthetic lethality by inhibiting the right DDR pathway targets to enable tumor cell destruction is an emerging field that deserves further exploration, this target is complementary with Debiopharm development pipeline like our ADC programs or Debio 0123," said Bertrand Ducrey, CEO, Debiopharm. "We are thrilled about this licensing deal with Forma Therapeutics and Novo Nordisk and evaluating the potential of this USP1-inhibitor program." About ubiquitin-specific protease 1 (USP1) The USP family is one of the largest subfamily of deubiquitinases (DUB). Ubiquitin-specific protease 1 (USP1), in particular, is a nucleus-localized enzyme and a well-established component of DNA repair, acting both in the Fanconi Anemia pathway (on FANCD2 and FANC1) and in translesion synthesis (TLS) on PCNA (proliferating cell nuclear antigen) substrate. It catalyzes the removal of specific monoubiquitin signals, is a critical regulator of genome integrity and its dysfunction plays a key role in cancer initiation and progression, explaining why USP1 has recently drawn special attention as a cancer target. In addition, USP1 was recently identified as a novel synthetic lethal interaction partner with BRCA1 loss offering a good rationale for the investigation of USP1 inhibitors in patient populations currently treated with PARP inhibitors. The potential of this class of new therapeutic agents might however be exploited in further settings as understanding of USP1 biology is progressing.

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