covalent-chemistry
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Antares Therapeutics
Antares Therapeutics is a Boston-based biotechnology company that discovers small-molecule precision medicines against historically 'undruggable' targets in cancer and other serious diseases. Spun out of Scorpion Therapeutics in June 2025 with $177 million in Series A financing, Antares combines proprietary compound libraries, next-generation mass spectrometry, chemical proteomics, and machine-learning-driven computational chemistry to find new binding pockets on proteins - such as transcription factors - that were long considered impossible to drug. Its lead program is slated to enter the clinic in 2026, and the company signed a collaboration worth up to $1.9 billion with Novartis in mid-2026.
Frontier Medicines
Frontier Medicines is a precision-medicine biotech using chemoproteomics, covalent chemistry, and machine learning to drug proteins long considered 'undruggable.' Its lead candidate, FMC-376, is a first-in-class dual ON/OFF inhibitor of KRAS G12C now in the Phase 1/2 PROSPER trial. Backed by $315M+ in venture funding and a major AbbVie partnership, the company is one of the most-watched names in next-generation targeted cancer therapy.