On September 21, 2023 Hepion Pharmaceuticals, Inc. (NASDAQ:HEPA), a clinical stage biopharmaceutical company focused on Artificial Intelligence ("AI")-driven therapeutic drug development for the treatment of non-alcoholic steatohepatitis ("NASH"), fibrotic diseases, hepatocellular carcinoma ("HCC"), and other chronic diseases, reported results from a study with in which the anti-cancer activity of Hepion’s lead drug candidate, rencofilstat, was tested in a high through-put screen on 850 cancer cell lines spanning 28 types of cancer at the PRISM lab at the Broad Institute of MIT and Harvard (Press release, Hepion Pharmaceuticals, SEP 21, 2023, View Source [SID1234635309]).
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The Broad Institute is one of the few institutions in the world with such an expansive cancer cell line screening program. By utilizing advanced technologies and global collaborations, the Broad Institute has become a global leader in understanding cancer and other human diseases and helping to develop effective therapeutics.
Rencofilstat was administered at eight concentrations to each cancer cell line in culture for 5 days, followed by measurement of surviving cells to determine how effectively the drug candidate killed or suppressed proliferation of the cancer cells. Defining "anti-cancer responsiveness" as 50% or greater reduction in viability following treatment, 26% of all tested cancer cell lines (220/850) spanning 86% of cancer cell types (24/28) were responsive to rencofilstat. Some of the rencofilstat-sensitive cell lines were HCC cells, which further supports Hepion’s plans for a clinical trial in this indication. Furthermore, the reductions in viability in responsive cells occurred at drug concentrations similar to those observed in individuals participating in Hepion’s NASH clinical trials. Thus, administration of rencofilstat to cancer patients with the standard regimen of once-daily oral dosing may be efficacious for those with responsive types of cancer.
The screening study also integrated additional information collected by the Broad Institute about the cancer cell lines, such as gene mutations, gene expression, and protein and metabolic profiles, to provide insights into rencofilstat’s mechanisms of action and identify biomarkers associated with its anti-cancer activity. Some of the markers uncovered by these analyses were related to familiar rencofilstat mechanisms, whereas others pointed to new processes. Genes known to be mutated in HCC or other types of cancer, including ATM, PTPRB, HNF1A, NOTCH1, ALK, TP63, IDH2 and MAP3K, were among the many genes identified to possibly influence the sensitivity of cells to rencofilstat.
"The results from this high-throughput screen provide valuable insights into how rencofilstat directly arrests cancer cells and adds to the discoveries being made from our in-house research. These direct effects on cancer cell lines may be an important part of rencofilstat’s anti-cancer activity," remarked Daren Ure, Hepion’s Chief Scientific Officer. "We have already observed that rencofilstat fights cancer through other indirect mechanisms, and in particular by changing the tissue environment in which the tumor grows. For example, we previously found that rencofilstat altered the immune cell composition of liver tumors in mice, suggesting an enhanced immune attack on the tumors. Directly targeting cancer cells while simultaneously modulating their microenvironment provides additional weapons for attacking cancer. Our ongoing research aims to further define the characteristics of liver cancer and other types of cancer that make them most susceptible to rencofilstat, and to thereby help identify who may benefit most from treatment."