On November 3, 2025 Orum Therapeutics ("Orum" or the "Company") (KRX: 475830), a public biotechnology company pioneering the field of degrader-antibody conjugates (DACs), reported that preclinical data for ORM-1153, a CD123-targeting DAC with a GSPT1-degrading payload, have been selected for presentation at the upcoming 67th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting, taking place December 6 to 9, 2025, in Orlando, Florida.
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The presentation will feature data from preclinical studies of ORM-1153, a novel CD123-targeting DAC designed to deliver Orum’s proprietary GSPT1-degrading payload, SMol006, selectively into cancer cells to achieve targeted protein degradation and antitumor activity in acute myeloid leukemia (AML). The results support further investigation of ORM-1153 as a potential therapeutic option for AML and other CD123-positive hematologic malignancies, including those with TP53-mutant status.
Details of the ASH (Free ASH Whitepaper) 2025 Presentation
Title: ORM-1153: A CD123-Targeting Degrader Antibody Conjugate with GSPT1-Degrading Payload Exhibits Potent Preclinical Antitumor Activity in Acute Myeloid Leukemia
Session: 604. Molecular Pharmacology and Drug Resistance: Myeloid Neoplasms: Poster III
Session Type: Poster Presentation
Session Date and Time: December 8, 2025, from 6 pm to 8 pm ET
Location: Orange County Convention Center (OCCC), West Halls B3-B4
Abstract Number: 5051
About Orum’s TPD² Approach
Orum’s unique Dual-Precision Targeted Protein Degradation (TPD²) approach builds novel targeted protein degraders combined with the precise cell delivery mechanisms of antibodies to generate innovative, first-in-class, cell-selective TPDs for the treatment of cancer and other serious diseases. Orum has developed new targeted protein degrader payloads to specifically degrade an intracellular target protein within cancer cells via the E3 ubiquitin ligase pathway. Conjugated to antibodies, the payloads are designed to be delivered specifically to target cells and precisely degrade the intracellular target protein of interest.
(Press release, Orum Therapeutics, NOV 3, 2025, View Source [SID1234659273])