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Shattuck Labs Announces Preliminary Clinical Data from Ongoing Phase 1 Clinical Trials of ARC Fusion Proteins SL-172154 and SL-279252
– SL-279252 (PD1-Fc-OX40L) demonstrates anti-tumor activity and evidence of dose-dependent immune activation in heavily pretreated, checkpoint experienced

About this update from Shattuck Labs, Inc.
[{"type":"text","content":"– SL-279252 (PD1-Fc-OX40L) demonstrates anti-tumor activity and evidence of dose-dependent immune activation in heavily pretreated, checkpoint experienced patients – – SL-172154 (SIRPα-Fc-CD40L) demonstrates high CD47 target occupancy and CD40 target engagement and evidence of dose-dependent immune activation in heavily pretreated platinum resistant ovarian cancer patients – – Open IND for clinical trial of SL-172154 in acute myeloid leukemia (AML) and higher-risk myelodysplastic syndromes (HR-MDS) – – SL-172154 and SL-279252 data to be presented at the Society for Immunotherapy of Cancer (SITC) 36th annual meeting – – Shattuck Labs to host conference call and webcast on November 12th at 8:00 a.m. ET – AUSTIN, Texas and DURHAM, N.C., Nov. 09, 2021 (GLOBE NEWSWIRE) -- Shattuck Labs, Inc. (Shattuck) (NASDAQ: STTK), a clinical-stage biotechnology company pioneering the development of bi-functional fusion proteins as a new class of biologic medicine for the treatment of patients with cancer and autoimmune disease with three ongoing Phase 1 clinical trials, today announced the first clinical data from its Agonist Redirected Checkpoint (ARC) platform compounds, SL-172154 and SL-279252, in patients with advanced cancer. For SL-172154 (SIRPα-Fc-CD40L), initial monotherapy Phase 1 dose-escalation data show favorable safety and tolerability for a CD40 agonist, high levels of CD47 target occupancy and CD40 target engagement, and escalating pharmacodynamic activity in heavily pretreated, platinum resistant ovarian cancer patients. For SL-279252 (PD1-Fc-OX40L), anti-tumor activity has been observed in heavily pretreated patients, including one confirmed partial response (PR), and a second unconfirmed PR, both in patients with PD-1/L1 inhibitor pretreated non-cutaneous melanoma. Both SL-172154 and SL-279252 have been well tolerated, and a recommended Phase 2 dose has not yet been identified. These data will be presented at the Society for Immunotherapy of Cancer’s 36th annual meeting being held Wednesday, November 10, 2021, to Sunday, November 14, 2021. Additional data from both programs will be presented at the meeting and on an investor call on November 12, 2021. “We are incredibly pleased to provide our first clinical update for our ARC fusion proteins, SL-172154 and SL-279252, which are both in Phase 1 dose-escalation trials,” said Lini P...