What Shattuck Labs, Inc. does.

We are a clinical-stage biotechnology company pioneering the development of potentially first-in-class monoclonal and bispecific Death Receptor 3 (“DR3”) blocking antibodies for the treatment of patients with inflammatory and immune-mediated diseases. Our expertise in protein engineering and the development of novel tumor necrosis factor (“TNF”) receptor therapeutics come together in our lead program, SL-325, a potentially first-in-class DR3 blocking antibody designed to achieve a more complete blockade of the clinically validated DR3/TL1A pathway than TL1A blocking antibodies.

SL-325 is a high-affinity DR3 blocking monoclonal antibody. DR3 is the sole known receptor for tumor necrosis factor like ligand 1A (“TL1A”). In our head-to-head preclinical studies, SL-325 blocked TL1A binding to DR3 better than sequence equivalents of leading TL1A blocking antibodies. We believe that the underlying biological differences in the expression of DR3 and TL1A, and the design characteristics of SL-325, may allow SL-325 to achieve best-in-class clinical remission rates in patients with IBD due to a more complete and durable blockade of the clinically validated DR3/TL1A pathway. Additionally, we expect that SL-325 has the potential to demonstrate a superior immunogenicity profile in comparison to TL1A blocking antibodies. By targeting DR3 instead of TL1A, we expect to avoid the formation of immune complexes, which we believe are the primary source of immunogenicity for all TL1A blocking antibodies, and lead to high rates of anti-drug antibody (“ADA”) formation toward TL1A targeting antibodies. ADA to TL1A targeting antibodies has been shown to reduce efficacy in IBD patients. We are currently conducting a single ascending dose (“SAD”) and multiple ascending dose (“MAD”) Phase 1 clinical trial evaluating SL-325 in healthy volunteers. We expect this Phase 1 clinical trial to be completed in the second quarter of 2026. We expect to initiate a randomized, placebo-controlled Phase 2 clinical trial evaluating SL-325 in patients with Crohn’s Disease (“CD”) in the third quarter of 2026.

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Figures from Shattuck Labs, Inc.'s filings with the U.S. SEC, standardised automatically; prices are end-of-day closes. Not financial advice.