AI drug discovery company Pathos AI has partnered with pharmaceutical company Prelude Therapeutics to globally license Prelude's oncology candidate PRT811, renaming it to P-500.
P-500 is a selective brain-penetrant small molecule inhibitor of protein arginine methyltransferase 5 (PRMT5) targeting advanced solid tumors, including high-grade glioma and uveal melanoma. The drug was assessed in a phase I trial in March 2023, where, reportedly, out of 16 cases of high-grade glioma with isocitrate dehydrogenase mutations (IDH+), two confirmed complete responses (CR) were observed. In the same trial, out of 23 uveal melanoma patients, the results claim to have demonstrated one confirmed partial response (PR) and a second unconfirmed PR.
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