Mid-stage da­ta on Al­lena's hy­per­ox­aluria drug fu­el op­ti­mism ahead of piv­otal read­out

Ahead of the piv­otal da­ta of its lead ex­per­i­men­tal drug for hy­per­ox­aluria, Al­lena Phar­ma­ceu­ti­cals re­vealed in­ter­im da­ta from a small mid-stage study on Wednes­day, that sig­naled the drug con­fers ben­e­fits in cer­tain pa­tients with ad­vanced chron­ic kid­ney dis­ease (CKD) that are at risk of sys­temic ox­alo­sis, a po­ten­tial­ly life-threat­en­ing con­di­tion.

Hy­per­ox­aluria oc­curs due to high lev­els of ox­alate — a nat­ur­al chem­i­cal — in urine. Ox­alo­sis oc­curs af­ter the kid­neys fail in in­di­vid­u­als who have pri­ma­ry and in­testi­nal caus­es of hy­per­ox­aluria, and ex­cess ox­alate builds up in the blood. This can lead to ox­alate de­posits in blood ves­sels, bones and body or­gans, ac­cord­ing to the Mayo Clin­ic.

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