Sirexatamab
(DKN-01)
– an anti-DKK1 antibody
A new targeted therapy in development for cancer patients with high DKK1
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News releases
Aug 12, 2026
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Leap Therapeutics is focused on developing targeted and immuno-oncology therapeutics. Leap’s most advanced clinical candidate, sirexatamab (DKN-01), is a humanized monoclonal antibody targeting the Dickkopf-1 (DKK1) protein. Sirexatamab is being developed in patients with colorectal, esophagogastric, and gynecologic cancers. Leap also has FL-501, a humanized monoclonal antibody targeting the growth and differentiation factor 15 (GDF-15) protein, in preclinical development.