Create the glue. Capture the protein. Eliminate disease.
De novo molecular glues for targets beyond the reach of traditional therapies.
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
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.
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.

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


Avram Hershko, MD


Lan Huang, Ph.D.


Ning Zheng, Ph.D.


Michele Pagano, M.D.
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.


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 in the Spotlight

SEED Therapeutics Doses First Patient in Phase 1 Trial of ST-01156, a Molecular Glue Degrader Targeting RBM39
January 9, 2026

SEED Therapeutics Doses First Patient in Phase 1 Trial of ST-01156, a Molecular Glue Degrader Targeting RBM39
January 9, 2026

SEED Therapeutics Doses First Patient in Phase 1 Trial of ST-01156, a Molecular Glue Degrader Targeting RBM39
January 9, 2026

RBM39 Functions as a Potential Oncogene Through the NF-κB Signaling Pathway in Colorectal Cancer Cells
March 29, 2025

RBM39 Functions as a Potential Oncogene Through the NF-κB Signaling Pathway in Colorectal Cancer Cells
March 29, 2025

RBM39 Functions as a Potential Oncogene Through the NF-κB Signaling Pathway in Colorectal Cancer Cells
March 29, 2025

Systematic pan-cancer analysis identifies RBM39 as an immunological and prognostic biomarker
August 21, 2022

Systematic pan-cancer analysis identifies RBM39 as an immunological and prognostic biomarker
August 21, 2022

Systematic pan-cancer analysis identifies RBM39 as an immunological and prognostic biomarker
August 21, 2022
