Novartis announces discontinuation of CIRRUS-1 study of CFZ533 (iscalimab) in kidney transplant patients

Sep 03, 2021

Novartis today announced that following an interim analysis of data from the CIRRUS-1 study, a decision has been taken to discontinue the trial. 

  • The analysis indicated that CFZ533 (iscalimab)-based treatment is less efficacious compared to tacrolimus-based treatment in the prevention of organ rejection in patients receiving a kidney transplant. Both CFZ533 and tacrolimus were used in combination with other immunosuppressive therapies (induction therapy, mycophenolate and corticosteroids).
  • Study of CFZ533 in liver transplant continues, as do studies exploring CFZ533 as a potential treatment in other conditions, such as hidradenitis suppurativa and Sjögren’s syndrome.

Novartis is continuing to review the data from the CIRRUS-1 study. Once complete, results will be shared with the broader scientific community.

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