A study to evaluate how well single and multiple doses of O3R-5671-PRO are tolerated in healthy adult subjects

2025-522571-28-00 Protocol O3R-5671-CL-101 Human pharmacology (Phase I) - First administration to humans Ongoing, recruiting

Start 28 Aug 2025 · Status Ongoing, recruiting · 1 EU/EEA countries · 1 sites · Protocol O3R-5671-CL-101

Overview

Sponsor-declared trial summary

Phase Human pharmacology (Phase I) - First administration to humans
Status Ongoing, recruiting
Participants planned 88
Countries 1
Sites 1

Inflammatory bowel diseases and psoriasis.

Key facts

Sponsor
Coultreon Biopharma
Participant type
Healthy volunteers
Age range
18-64 years
Gender
Male
Therapeutic area
Diseases [C] - Immune System Diseases [C20]
Trial duration
28 Aug 2025 → ongoing
Decision date (initial)
2025-08-13
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No

Trial design

CTIS Part I — objectives, methods, condition coding

Conditions and MedDRA coding

Inflammatory bowel diseases and psoriasis.

VersionLevelCodeTermSystem organ class
20.1 PT 10021972 Inflammatory bowel disease 100000004856
20.0 PT 10037153 Psoriasis 100000004858

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Coultreon Biopharma

Sponsor organisation
Coultreon Biopharma
Address
Gaston Geenslaan 3
City
Leuven
Postcode
3001
Country
Belgium

Scientific contact point

Organisation
ONCO3R Therapeutics
Contact name
Magdalena Petkova

Public contact point

Organisation
ONCO3R Therapeutics
Contact name
Magdalena Petkova

Locations

1 EU/EEA country · 1 investigational sites

By country

CountryMS statusPlanned subjectsSites
Belgium Ongoing, recruiting 88 1
Rest of world 0

Investigational sites

Belgium

1 site · Ongoing, recruiting
SGS Belgium
SGS-Clinical Research CPU, Drie Eikenstraat 655, 2650, Edegem

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Belgium 2025-08-28 2025-08-28

Application history

5 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-07-01 Belgium Acceptable
2025-08-08
2025-08-13
2 NON SUBSTANTIAL MODIFICATION NSM-1 2025-08-26 Belgium Acceptable
2025-08-08
2025-08-26
3 SUBSTANTIAL MODIFICATION SM-1 2026-01-08 Belgium Acceptable
2026-01-26
2026-01-26
4 SUBSTANTIAL MODIFICATION SM-2 2026-02-10 Belgium Acceptable
2026-02-23
2026-02-24
5 NON SUBSTANTIAL MODIFICATION NSM-2 2026-05-06 Belgium Acceptable
2026-02-23
2026-05-06