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

Trial Profile

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

Status: Not yet recruiting
Phase of Trial: Phase I

Latest Information Update: 03 Oct 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

  • 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.
  • 24 Apr 2025 According to SEED Therapeutics media release, SEED is rapidly transitioning into a clinical-stage company, with the planned IND filing for ST-01156 in the middle of this year.

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