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A Phase 1/1B Study of ST-01156, a Small Molecule RBM39 Degrader, in Patients With Advanced Solid Malignancies

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Trial Profile

A Phase 1/1B Study of ST-01156, a Small Molecule RBM39 Degrader, in Patients With Advanced Solid Malignancies

Status: Recruiting
Phase of Trial: Phase I

Latest Information Update: 20 Dec 2025

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At a glance

  • Drugs ST 01156 (Primary)
  • Indications Ewing's sarcoma; Haematological malignancies; Solid tumours
  • Focus Adverse reactions; First in man
  • Sponsors Seed Therapeutics

Most Recent Events

  • 09 Dec 2025 Status changed from not yet recruiting to recruiting.
  • 29 Sep 2025 Status changed from planning to not yet recruiting.
  • 11 Aug 2025 According to SEED Therapeutics media release, company announced that the U.S. Food and Drug Administration (FDA) has cleared its Investigational New Drug (IND) application for ST-01156. The clearance enables initiation of a first-in-human Phase 1 clinical trial in patients with advanced solid tumor and hematological malignancies, prioritizing multiple cancers with convincing preclinical evidence of RBM39 dependency. First patient dosing is expected in the first quarter of 2026.

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