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Coultreon Biopharma

Clinical-stage biotechnology company developing oral small-molecule treatments for autoimmune and chronic inflammatory diseases. Formerly Onco3R Therapeutics, it uses salt-inducible kinase biology and an AI-augmented drug-design platform to optimize medicines. Its lead candidate COL-5671 is a selective, once-daily oral SIK3 inhibitor in Phase 1 development, with planned Phase 2 studies in psoriasis and ulcerative colitis. It also has discovery programs in immunology and metabolic disease.

Team

Fabrice KolbHead of Immunology; Co-founder
Gert De BeckkerHead of Regulatory
Guy PeetersChief Financial Officer; Co-founder
John-Paul GallivanHead of Development; Co-founder
Joost KolkmanCo-founder
Lawrence BlattBoard member
Lieve LammensToxicology
Maha KatabiBoard member
Marie De VulderChief Legal Officer; Co-founder
Max KlementMax KlementBoard member
Nate MassariChief Business Officer
Pierre RaboissonChief Executive Officer; Chief Scientific Officer; Co-founder; Board Member
Pieter PeetersOperating & Technology Officer; Co-founder
Prista CharuwornChief Medical Officer
Rogier RooswinkelBoard member
Tom GovaertsChemistry, Manufacturing and Controls

Investments

$125M2026-04-28Luma Group