Coultreon Biopharma focuses on developing therapies that target clinically validated pathways in immunology and metabolic diseases, leveraging expertise in disease biology, drug discovery and translational science. Its pipeline centers on selectively modulating salt-inducible kinase (SIK) biology to address key inflammatory pathways. The company's lead program, COL-5671 (formerly O3R-5671), is a highly selective, oral once-daily SIK3 inhibitor currently in Phase 1 clinical studies. Coultreon intends to use the $125M Series A proceeds to support further clinical development of COL-5671. The company is led by CEO Pierre Raboisson and is based in Leuven, Belgium. No revenue, user, founding year or prior-round financial metrics were reported in the article.

Total raised

$125M

Funding rounds

1

Latest round

Series A

Latest activity

Apr 2026