RE: strange23 Jan 2019 13:45
Sareum Holdings plc
("Sareum" or "the Company")
Sareum licence partner for SRA737, Sierra Oncology, to Present at the DNA Damage Response Therapeutics Summit on 30 January 2019
Sareum Holdings plc (AIM: SAR), the specialist small molecule drug development business, notes that Sierra Oncology, the licence holder advancing clinical cancer candidate SRA737, has announced that its Chief Scientific Officer, Dr. Christian Hassig, will present "Addressing Intrinsic & Acquired PARP Inhibitor (PARPi) Resistance Through Chk1 Inhibition" at the DNA Damage Response (DDR) Therapeutics Summit in Boston, MA. The presentation is scheduled for 9:00 am Eastern Time (ET) on 30 January 2019.
Further extracts from the Sierra Oncology announcement are below and a link to the full announcement can be found by clicking here.
"Targeting components of the DDR machinery that regulate replication stress, such as Chk1, represents an attractive therapeutic strategy to address both intrinsic and acquired PARPi resistance," noted Dr. Hassig. "For example, CCNE1-driven tumors, frequently found in high grade serous ovarian, breast and endometrial cancers, are associated with high replication stress and are generally insensitive to PARPi therapy. We have demonstrated that our Chk1 inhibitor, SRA737, plus low dose gemcitabine is highly effective in CCNE1-amplified preclinical models, where low-dose gemcitabine induces an additional exogenous form of replication stress further enhancing sensitivity to Chk1 inhibition. Moreover, PARPi acquired resistance is driven, in part, through increased replication fork stabilization and partial recovery of homologous recombination repair, two processes regulated by Chk1. As such, our preclinical results suggest that combining PARPi with SRA737 may prove effective in treating this significant emerging clinical issue."
Sierra Oncology is a key sponsor of the DNA Damage Response Therapeutics Summit, which will gather leading stakeholders from across drug development over two days to discuss how to advance the therapeutic potential of targeting DNA repair pathways.
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