Endeavor Biomedicines logo

Endeavor Biomedicines

Emerging

Endeavor Biomedicines is a Cambridge-based clinical-stage biotech targeting drivers of fibrosis and oncology with precision small molecules; raised $450M in a 2024 Series B led by Arch Venture Partners and GV;

Best for: Precision Medicine for Fibrosis & OncologyEmerging, rapid growth
Life Sciences & BioTechPrecision Medicine for Fibrosis & OncologyWebsiteUpdated May 2026

Company Overview

About Endeavor Biomedicines

Endeavor Biomedicines is a clinical-stage biotechnology company founded in 2022 and headquartered in Cambridge, Massachusetts, that is developing precision small-molecule medicines targeting the molecular drivers of fibrotic diseases and cancer. The company's scientific focus is on identifying and inhibiting protein targets that are specifically activated in disease states — particularly in idiopathic pulmonary fibrosis (IPF), a fatal scarring lung disease, and solid tumor oncology. Endeavor's platform emphasizes structural biology and medicinal chemistry to design compounds with high selectivity for disease-driving targets, minimizing off-target effects that have limited the tolerability of earlier investigational drugs. The company is led by CEO Tomas Kiselak and supported by a scientific advisory board of leading experts in fibrosis and cancer biology.

Business Model & Competitive Advantage

Endeavor Biomedicines raised a landmark $450M Series B in 2024 led by Arch Venture Partners and GV (Google Ventures), with participation from RA Capital Management, Bristol-Myers Squibb, and other prominent life sciences investors. This is one of the largest Series B financings in biotech history, reflecting the high unmet need in fibrosis and the investors' conviction in Endeavor's target selection and drug discovery platform. The company's lead program is an inhibitor of THY1 (also known as CD90) — a cell surface protein implicated in the activation of fibroblasts and cancer-associated stromal cells — which is advancing toward clinical trials in IPF and potentially in solid tumors with fibrotic stroma.

Competitive Landscape 2025–2026

Endeavor Biomedicines competes in the fibrosis drug development space alongside companies like United Therapeutics, Galapagos (partnered with Gilead), Pliant Therapeutics, and Bridge Biotherapeutics. IPF has an FDA-approved standard of care (pirfenidone and nintedanib) that slows disease progression but does not reverse fibrosis or significantly improve survival, representing a clear opportunity for transformative therapies. In oncology, the tumor microenvironment and cancer-associated fibroblasts are increasingly recognized as critical barriers to immunotherapy efficacy, creating a second major opportunity for Endeavor's anti-fibrotic target biology.

Founded
2022
Headquarters
Cambridge, Massachusetts
Curated content • Fact-checked and verified

Key Differentiators

Emerging Innovator

Endeavor Biomedicines is an emerging player bringing innovative solutions to the Life Sciences & BioTech market.

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