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Orismilast pharmacology

Key messages

  • Orismilast is a highly selective PDE4i, with no or negligible activity against the other 10 PDEs.
  • Compared to apremilast, orismilast is a more potent inhibitor of PDE subtypes relevant for inflammation.
  • Orismilast also inhibits TNFα secretion more potently than apremilast in PBMC and whole blood.
  • Preclinical findings demonstrate orismilast is a potent inhibitor of PDE4 subtypes involved in inflammatory signaling cascades associated with chronic inflammatory diseases.