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
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
2 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Funding History
Apr 2026
Investors
Similar Companies
China's leading blood products manufacturer
One of the world's largest contract research organizations (CROs), providing end-to-end clinical ...
Global contract development and manufacturing organization (CDMO) focused exclusively on sterile ...
Global contract research organization providing comprehensive drug development and laboratory ser...
Global fertility clinics platform
Biotech advancing cellular rejuvenation programming to restore cell health and reverse disease.
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/coultreon-biopharma"><img src="https://indexed.vc/api/badge/company/coultreon-biopharma" alt="Coultreon Biopharma on Indexed.vc" width="260" height="76" /></a>