← Patent-cliff monitor small molecule KYPROLIS CARFILZOMIB
Loss of exclusivity October 2041 latest FDA-listed patent expiry
Company ONYX PHARMACEUTICALS INC A WHOLLY OWNED SUB OF AMGEN INC
Drug detail Brand name KYPROLIS Active ingredient CARFILZOMIB Strength 10MG/VIAL Dosage form POWDER Route INTRAVENOUS Modality Small molecule FDA approval June 2018 Marketing status RX
Listed patents Patent Expires Type 12636340*PED October 2041 — 12636340 April 2041 use U-4551 9493582*PED August 2033 — 9493582 February 2033 product RE47954*PED April 2030 — RE47954 October 2029 use U-3449 7737112*PED June 2028 — 7737112 December 2027 product 7417042*PED January 2027 — 7417042 July 2026 substance, product
Regulatory exclusivity Code Expires PED November 2028 M-14 May 2028
Source: FDA Orange Book, layered on the CliffBio company graph. Cliff dates are the latest FDA-listed patent expiry; estimates are projections, not legal advice.