ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,668, issued on March 24, was assigned to Arrowhead Pharmaceuticals Inc. (Pasadena, Calif.).

"Methods for the treatment of alpha-1 antitrypsin deficiency (AATD)" was invented by Bruce Given (Charleston, S.C.), Dawn Christianson (Solana Beach, Calif.), James C. Hamilton (Arcadia, Calif.), Zhen Li (San Diego), Rui Zhu (San Diego), Christine I. Wooddell (Madison, Wis.) and Tao Pei (Middleton, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described are methods for treating alpha-1 antitrypsin deficiency (AATD) in a human patient in need of treatment, using pharmaceutical compositions that include AAT RNAi agents. The pharmaceutical compositions di...