NCT06606808 Fluorescence Imaging of Risankizumab-800CW in Inflammatory Bowel Disease
| NCT ID | NCT06606808 |
| Status | Recruiting |
| Phase | Phase 1, Phase 2 |
| Sponsor | University Medical Center Groningen |
| Condition | Ulcerative Colitis (UC) |
| Study Type | INTERVENTIONAL |
| Enrollment | 18 participants |
| Start Date | 2024-11-08 |
| Primary Completion | 2025-08 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.
This trial targets 18 participants in total. It began in 2024-11-08 with a primary completion date of 2025-08.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
Crohn\'s Disease (CD) and Ulcerative Colitis (UC) are chronic inflammatory bowel diseases (IBD). Risankizumab is a human monoclonal antibody against IL23 p19, part of a pro-inflammatory cytokine that mediates the inflammatory response in IBD upon binding to its receptor. Primary non-response to risankizumab is high in both CD and UC. Currently, there are no predictors of response to risankizumab and the actual mechanism of action has not yet been elucidated. To gain better understanding of the drug targeting of risankizumab in IBD, the University Medical Center Groningen (UMCG) developed fluorescently labeled risankizumab (risankizumab-800CW). This study aims to assess the safety and the optimal dose of risankizumab-800CW to visualize and potentially quantify the local drug concentration and predict treatment response in IBD patients using in vivo and ex vivo fluorescence molecular imaging (FMI).
Eligibility Criteria
Inclusion Criteria for part A: * Established IBD diagnosis * Active disease: clinically active disease of the bowel is defined clinically as at least mild activity using dedicated scoring indices or biochemically active disease as defined by a fecal calprotectin \> 60 μg/g * Patients must be eligible for risankizumab therapy * Minimum age of 18 years * Written informed consent * Clinical indication for an endoscopic procedure Inclusion Criteria for part B: * Established IBD diagnosis * Patients must be on risankizumab therapy for at least 14 weeks * Minimum age of 18 years * Written informed consent * Clinical indication for an endoscopic procedure Exclusion Criteria for part A: * A female study patient who is pregnant or provides breastfeeding * A female study patient of premenopausal age who does not use any reliable form of contraception at the time of risankizumab-800CW administration and the following 10 weeks * Medical or psychiatric conditions that compromise the patient's ability to give informed consent * Prior anti-IL23-specific therapy (IL23/IL12 combination therapy is not an exclusion criteria) * Active extra gastrointestinal manifestations of Crohn's disease (e.g. uveitis or pyoderma gangrenosum at vital locations) Exclusion Criteria for part B: * A female study patient who is pregnant or provides breastfeeding * A female study patient of premenopausal age who does not use any reliable form of contraception at the time of risankizumab-800CW administration and the following 10 weeks * Medical or psychiatric conditions that compromise the patient's ability to give informed consent * Active extra gastrointestinal manifestations of Crohn's disease (e.g. uveitis or pyoderma gangrenosum at vital locations)
Contact & Investigator
Frequently Asked Questions
Who can join the NCT06606808 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, studying Ulcerative Colitis (UC). Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
What phase is the NCT06606808 trial and what does that mean for participants?
Phase 1 trials are the first stage of human testing. The primary goal is to assess safety and determine appropriate dosage levels. Participants are closely monitored. These trials typically involve a small number of volunteers.
Is NCT06606808 currently recruiting?
Yes, NCT06606808 is actively recruiting participants. Contact the research team at w.b.nagengast@umcg.nl for enrollment information.
Where is the NCT06606808 trial being conducted?
This trial is being conducted at Groningen, Netherlands.
Who is sponsoring the NCT06606808 clinical trial?
NCT06606808 is sponsored by University Medical Center Groningen. The trial plans to enroll 18 participants.
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