On November 7, 2022 Promontory Therapeutics Inc., a clinical stage pharmaceutical company advancing small molecule immunotherapies in oncology, reported that it will present data on lead therapeutic candidate, PT-112, and its immunological effects on cancer cell mitochondria (Press release, Promontory Therapeutics, NOV 7, 2022, View Source [SID1234623272]). The presentation will take place at the 34th Annual Meeting of the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper). SITC (Free SITC Whitepaper) 2022 will take place virtually and in Boston on November 8-12.
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About PT-112
PT-112 is the first small-molecule conjugate of pyrophosphate in oncology, and possesses a unique pleiotropic mechanism of action that promotes immunogenic cell death (ICD), through the release of damage associated molecular patterns (DAMPs) that bind to dendritic cells and lead to downstream immune effector cell recruitment in the tumor microenvironment. PT-112 represents a highly potent inducer of this immunological form of cancer cell death. Further, PT-112 harbors a property known as osteotropism, or the propensity of the drug to reach its highest concentrations in certain areas of the bone, making it a candidate for treatment of patients with cancers that originate in, or metastasize to, the bone. The first in-human study of PT-112 demonstrated an attractive safety profile and evidence of long-lasting responses among heavily pre-treated patients and won "Best Poster" within the Developmental Therapeutics category at the ESMO (Free ESMO Whitepaper) 2018 Annual Congress. The combination Phase 1b dose escalation study of PT-112 with PD-L1 checkpoint inhibitor avelumab in solid tumors was reported in an oral presentation at the ESMO (Free ESMO Whitepaper) 2020 Virtual Congress. The Phase 1 study in patients with relapsed or refractory multiple myeloma presented at ASH (Free ASH Whitepaper) is the third completed Phase 1 study of PT-112. Monotherapy Phase 2 development is ongoing in mCRPC, and now includes the Phase 2 proof of concept study in thymic epithelial tumors under the company’s formal collaboration with the NCI. The PD-L1 combination Phase 2a study is ongoing in a dose confirmation cohort of non-small cell lung cancer (NSCLC) patients.