Coultreon Biopharma
Transforming lives with groundbreaking treatments
Leuven, United States · Founded 2025 · $125.0M raised
- Headquarters
- Leuven
- Employees
- 11–50
- Founded
- 2025
- Business Model
- B2B
- Website
- coultreon.com
- Total Funding
- $125.0M
- Last Round
- $125.0M Series AApr 2026
- Rounds
- 1
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
Coultreon Biopharma (formerly Onco3R Therapeutics) is a Leuven, Belgium-based clinical-stage biotech founded in 2025 developing precision medicines for autoimmune and inflammatory diseases. Its lead asset COL-5671 is a selective SIK3 inhibitor that completed Phase 1 with favorable safety and pharmacokinetic data, targeting ulcerative colitis and other immune-mediated conditions with a once-daily oral therapy.
Summary
Coultreon Biopharma is a Biotech company based in Leuven, United States, founded in 2025. It has raised $125.0M in total across 1 round, most recently a $125.0M Series A round in Apr 2026. Investors include Sofinnova Investments, Forbion Capital Partners and Galapagos.
Tech & App Stack
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Funding History
Apr 2026
Investors
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