Create the glue. Capture the protein. Eliminate disease.

De novo molecular glues for targets beyond the reach of traditional therapies.

OUR PIPELINE

Degrader programs built on deep biological insight and rigorous clinical translation.

SEED's pipeline is built for real-world impact, targeting diseases where standard modalities fail. Our lead RBM39 degrader (ST-01156) is in Phase 1 trials for Ewing sarcoma, hepatocellular carcinoma and other related tumors; complemented by 6 active programs supported by top clinical and strategic partners

Learn more about ST-01156
Indication
Target Protein
Target Selection
E3 Ligase ID
Molecular Glue HTS
Lead ID
IND Candidate
IND Filing
Phase
1
Milestones
Oncology
Phase 1
Jan 2026:

Undisclosed
Molecular
Glue HTS
Neuro-
degeneration
2H 2025:
In Vivo PK
Partnered
Lead ID
Partnered
Molecular
Glue HTS
Immunology
Partnered
Lead ID
Internal program
Partnered program (Lilly and Eisai)
OUR SCIENCE

More ligases. Rational matches. Better results.

While much of the field relies on only two E3 ligases, our RITE3™ platform unlocks access to more than 600 ligases encoded in the human genome.

Learn more about our science

RITE3 systematically identifies optimal ligase-target pairs and empowers them with custom molecular glues.

We discover E3 ligase–substrate combinations that were previously inaccessible, enabling a broader, more precise, and more rational approach to targeted protein degradation.

SCIENTIFIC LEADERS AND OUR CO-FOUNDERS

SEED is where molecular glue began, and where it’s headed.

Learn more about SEED and our team
Nobel Laureate
Avram Hershko, MD
Co-Founder
Discoverer of the ubiquitin-proteasome system.
Advisory Board
Lan Huang, Ph.D.
Co-Founder, CEO and Chairman
Solved the first E3 Ligase structure and a serial biotech entrepreneur.
Management
Board of Directors
Ning Zheng, Ph.D.
Co-Founder
Pioneer of E3 Ligase structures and coined the phrase “molecular glue.”
Advisory Board
Michele Pagano, M.D.
Co-Founder
Preeminent expert on E3 ligase biology.
Advisory Board
OUR PARTNERSHIPS

Building stronger together.

SEED has formed strategic partnerships with industry leaders Lilly and Eisai, enhancing its capabilities in drug development. These collaborations aim to leverage cutting-edge research and innovative technologies, driving forward the discovery of new therapies that can significantly impact patient care.

Partner with us

RITE3 systematically identifies optimal ligase-target pairs and empowers them with custom molecular glues.

SEED’s agreement with Lilly further allows us to advance our pioneering platform to deliver new molecules targeting proteins that cause human diseases.

SEED AACR 2026 Presentation: RBM39 Degrader Anticancer Activity Against Neuroblastoma; MYC and CDKN2A/B as Potential Response Biomarkers

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SEED AACR 2025 Presentation: Combinatorial use of VHL and KEAP1-based PROTACs reveals unexpected synergy and hook effect relief

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Unlocking the Power of Protein Degradation: Strategy, Science, and the Future of SEED Therapeutics

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2025 TPD Think Tank Symposium

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First-in-human clinical evaluation of ST-01156, an optimized and selective degrader of RNA-binding motif 39 (RBM39): A phase 1 study in advanced solid malignancies with a focus on RBM39-dependent cancers

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SEED Therapeutics Highlights Clinical Advancement and Broad Oncology Potential of ST-01156, an RBM39 Molecular Glue Degrader in First-in-Human in Phase 1 Studies, at ASCO 2026

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SEED Therapeutics to Present Phase 1 Trial Design for ST-01156, a First-in-Human Oral RBM39 Molecular Glue Degrader, at 2026 ASCO Annual Meeting

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SEED Therapeutics Reports Tumor Eradication in a Neuroblastoma In Vivo Model with Clinical-Stage RBM39 Molecular Glue Degrader ST-01156

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SEED Therapeutics Announces Poster Presentation at AACR Annual Meeting 2026

SEED Therapeutics Announces Poster Presentation at AACR Annual Meeting 2026
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SEED Therapeutics Doses First Patient in Phase 1 Trial of ST-01156, a Molecular Glue Degrader Targeting RBM39

First-in-human study evaluates safety, pharmacokinetics, biomarker analyses, target engagement, and anti-tumor activity in patients with advanced solid tumors
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RBM39 Functions as a Potential Oncogene Through the NF-κB Signaling Pathway in Colorectal Cancer Cells

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Systematic pan-cancer analysis identifies RBM39 as an immunological and prognostic biomarker

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SEED AACR 2025 Presentation: Liu F. et al. Targeting Ewing Sarcoma with A Novel RBM39 Degrader: DNA Damage Repair Pathway Effects (Abstract 1556)

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Phase 2 trial of palbociclib and ganitumab in patients with relapsed Ewing sarcoma

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Defining molecular glues with a dual-nanobody cannabidiol sensor

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Mechanism of auxin perception by the TIR1 ubiquitin ligase

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Structure of the Cul1–Rbx1–Skp1–F boxSkp2 SCF ubiquitin ligase complex

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Structure of an E6AP-UbcH7 complex: insights into ubiquitination by the E2-E3 enzyme cascade

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Role of the Ubiquitin-Proteasome Pathway in Regulating Abundance of the Cyclin-Dependent Kinase Inhibitor

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Proposed role of ATP in protein breakdown: Conjugation of proteins with multiple chains of the polypeptide of ATP-dependent proteolysis

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Protein degraders push into novel target space

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The glue degraders

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2023 TPD Think Tank Symposium

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American Association for Cancer Research 2025 Poster – Targeting Ewing Sarcoma with A Novel RBM39 Degrader

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Molecular glue binds protein degradation experts together

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Corporate Presentation: Transforming Undruggable Targets into Therapeutics

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BeyondSpring Creates Subsidiary, Seed Therapeutics, to Focus on Protein Degradation Platform

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BeyondSpring Subsidiary, Seed Therapeutics, Announces Research Collaboration and License Agreement with Lilly

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Seed Therapeutics has completed construction of a new state of the art innovation and research center at 411 Swedeland Road in King of Prussia, Pennsylvania

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Seed Therapeutics, BeyondSpring Subsidiary, Appoints Jackson Tai to Board of Directors

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SEED Therapeutics, a BeyondSpring Subsidiary, Appoints Mr. Ko-Yung Tung to the Board of Directors Former Eisai Board Member

Former World Bank General Counsel, and Lecturer at Harvard and Yale Law Schools, Brings Five Decades of Experience in Global Health, Law, Governance, and International Business
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SEED Therapeutics Discloses Novel Molecular Glue IND Candidate for Cancer at “Targeted Protein Degradation Think Tank” Symposium

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SEED Therapeutics is Featured Prominently in a Molecular Glue Development Publication, Nature Biotechnology

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SEED Therapeutics Appoints Eisai Co., Ltd.’s Dr. Yoshiharu Mizui to Board of Directors

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Nature: Protein degraders push into novel target space

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SEED Receives FDA Rare Pediatric Disease and Orphan Drug Designations for Lead Oncology Asset RBM39 Degrader and Enters Strategic Transactions with New Investors

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SEED Therapeutics Reports Breakthroughs for Two Targeted Protein Degradation Projects at AACR Annual Meeting in Chicago

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SEED Therapeutics Highlights Breakthrough Advances in Targeted Protein Degradation at AACR 2025

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SEED Therapeutics Appoints Dr. Bill Desmarais as Chief Financial Officer and Chief Business Officer

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FDA Clears IND for SEED Therapeutics’ RBM39 Degrader ST-01156

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SEED Therapeutics Named Finalist for 2025 Prix Galien USA “Best Start-Up” Award

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20 Years of the Ubiquitin Revolution: Honoring Nobel Laureate Professor Avram Hershko and the Future of Targeted Protein Degradation

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SEED Therapeutics (SEED) Enters into Strategic Research Collaboration with Eisai Co., Ltd. to Discover and Develop Novel Molecular Glue Degraders for Neurodegeneration and Oncology Indications

SEED Concurrently Enters into Share Purchase Agreements for its Series A-3 Financing Led by Eisai
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SEED Therapeutics Completes $30 Million Series A-3 Financing

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SEED Therapeutics Receives IND Clearance from China’s NMPA for ST-01156

China Sites to Join Upcoming Global Expansion Study Evaluating RBM39-Dependent Cancers
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