A Nature paper finds that one arginine transfer RNA, tRNA1 Arg(UCU), keeps prostate tumors on androgen receptor signaling. When it falls, cells slip into a lineage-plastic, AR-inhibitor-resistant state.
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KRAS sat on the undruggable list for decades. Silexion's SIL204 is built to silence the mutation earlier in the cell, and the Phase 2/3 program is now moving into patients.
Celcuity's REVTORPYK became commercially available September 30, claiming the PIK3CA wild-type corner of second-line HR-positive breast cancer no approved PI3K or AKT label covers. The launch must now overcome an immature survival read, heavy stomatitis, and a weekly IV schedule.
Mirum's brelovitug hit its Phase 3 endpoint in hepatitis delta, but Gilead's Hepcludex already holds the US approval and Vir's program is in flight. A strong readout no longer guarantees the market follows.