Shattuck Labs (Nasdaq: STTK) announced a strategic pipeline prioritization, discontinuing its SL-172154 clinical program due to modest improvements in overall survival for TP53 mutant AML and HR-MDS patients. The company will focus on SL-325, a first-in-class DR3 antagonist antibody for inflammatory bowel disease (IBD), with an IND filing expected in Q3 2025.