Circle Pharma Announces Publication in Nature Demonstrating Robust Pre-clinical Anti-tumor Activity of Cyclin A/B RxL Inhibition

SOUTH SAN FRANCISCO, Calif.--(BUSINESS WIRE)--Circle Pharma, Inc., a clinical-stage biopharmaceutical company pioneering next-generation targeted macrocycle therapeutics for difficult-to-treat cancers, today announced a Nature publication describing robust pre-clinical tumor suppression and novel mechanistic insights from inhibiting the binding of certain protein substrates (that bind via RxL motifs) to cyclins A and B in E2F-high tumor cells. Circle Pharma’s oral cyclin A/B RxL inhibitor, CID-