CSL, Alentis Ink $1.55B Deal for Rare Kidney, Liver Drug
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Melbourne – October 4, 2026 -- CSL and Alentis Therapeutics have signed an exclusive global collaboration to develop and commercialize lixudebart, a potential first-in-class therapy targeting claudin-1 for rare kidney and liver diseases, with CSL paying Alentis US$355 million upfront and up to US$1.2 billion in commercial milestones.
CSL pays $355 million upfront, commits $1.2 billion in milestone payments
Under the agreement, CSL will fully fund the ongoing Phase 2 RENAL trial, the planned Phase 3 trial in ANCA-associated vasculitis with rapidly progressive glomerulonephritis (AAV-RPGN), and Phase 2 trials in focal segmental glomerulosclerosis (FSGS) and primary sclerosing cholangitis (PSC). Once commercialized, global profits will be split 55 percent to CSL and 45 percent to Alentis.