Tests bimekizumab in children with enthesitis-related arthritis or juvenile psoriatic arthritis
Studies how bimekizumab moves through the body in children with juvenile arthritis.
Plain-language title generated from the registry record
Registry title: An Open-label Study to Evaluate the Pharmacokinetics and Safety of Bimekizumab in Pediatric Study Participants With Active Juvenile Idiopathic Arthritis Subtypes Enthesitis-related Arthritis (Including Juvenile-onset Ankylosing Spondylitis) and Juvenile Psoriatic Arthritis
Key facts
- Where
- Calgary, Montreal, and Saskatoon, CanadaSee the 3 sites
- Phase
- Phase 3
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 2 and 18 years old?
Source: NCT06668181, who can take part
Where in Canada
- Ja0005 50646Calgary, CanadaTaking people
- Ja0005 50644Montreal, CanadaTaking people
- Ja0005 50645Saskatoon, CanadaTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- UCB Biopharma SRL
- Trial code
- NCT06668181EU 2023-508845-41-00
- Record updated
- 23 October 2026
- Original description
The purpose of this study is to assess plasma bimekizumab concentrations following subcutaneous (sc) bimekizumab administration.Read full original descriptionShow less
Open-Label, Single-Arm Trial to Evaluate the Pharmacokinetics and Safety of Bimekizumab in Pediatric Study Participants From 2 to Less Than 18 Years of Age With Active Juvenile Idiopathic Arthritis Subtypes Enthesitis-Related Arthritis (Including Juvenile-Onset Ankylosing Spondylitis) and Juvenile Psoriatic Arthritis
The purpose of this study is to assess plasma bimekizumab concentrations following subcutaneous (sc) bimekizumab administration.
Inclusion: Study participant must be 2 to <18 years of age inclusive, at the Baseline Visit; Study participants who have confirmed diagnosis of enthesitis-related arthritis (ERA; including juvenile-onset ankylosing spondylitis (JAS)) and/or juvenile psoriatic arthritis (JPsA) according to the juvenile-International League of Associations for Rheumatology (JIA-ILAR) classification criteria of at least 3 months duration prior to the Screening Visit; Study participants who have active disease (ERA [including JAS] and/or JPsA) defined as having at least 3 active joints, each of which needs to be included in the joints assessed in the JADAS27, and for ERA at least 1 site of enthesitis at Baseline or documented by history; Study participants with inadequate response (at least 1 month) or intolerance to at least 1 nonsteroidal anti-inflammatory drug (NSAID); Study participants taking concomitant methotrexate or sulfasalazine are allowed to continue the medication if it has been used for the past 12 weeks with a stable dose for the 4 weeks prior to Baseline, with no change in dose for the first 16 weeks of treatment foreseen. (Note: prior or concomitant use of methotrexate or sulfasalazine is NOT required for study participation.); Study participants with no concomitant use of second line agents such as disease-modifying and/or immunosuppressive drugs with the exception of methotrexate or sulfasalazine; Body weight of ≥10kg; Male and female; A female study participant will be eligible to participate if she is not pregnant, not breastfeeding, and at least 1 of the following conditions applies:; Not a woman of childbearing potential (WOCBP) OR; A WOCBP who agrees to follow the contraceptive guidance during the Initial Treatment Period, the Open-label Extension (OLE) Period, and for at least 20 weeks after the final dose of investigational medicinal product (IMP; ie, the Safety Follow-up (SFU) Period); Capable of giving/having parent(s) or legal representative provide signed informed consent/assent (where appropriate), which includes compliance with the requirements and restrictions listed in the Informed Consent Form (ICF) and assent and in this protocol.
Exclusion: Study participant has had major surgery (including joint surgery) within the 3 months prior to the Baseline Visit or has planned major surgery within 6 months after entering the study; Study participant has received drugs listed in the protocol outside the specified timeframes relative to the Baseline Visit or receives prohibited concomitant treatments; Study participant had previous therapy with bimekizumab or prior treatment with other IL-17 biologic response modifier; Study participant had prior treatment with more than one biologic response modifier (other than an IL-17); Study participant has history of inflammatory bowel disease (IBD) or signs/symptoms suggestive of IBD; Study participant has history of active tuberculosis (TB) unless successfully treated, latent TB unless prophylactically treated; Study participant has an active infection or history of infections (such as serious infection, chronic infections, opportunistic infections, unusually severe infections); Study participant has laboratory abnormalities at Screening defined in the Protocol; Study participants fulfilling any International League of Associations for Rheumatology (ILAR) diagnostic juvenile idiopathic arthritis (JIA) category other than enthesitis-related arthritis (ERA; including juvenile-onset ankylosing spondylitis (JAS)) and/or juvenile psoriatic arthritis (JPsA); Study participant has active uncontrolled uveitis; Presence of active suicidal ideation, or positive suicide behavior; Study participant has been diagnosed with severe depression in the past 6 months.