UCB announces a head-to-head study evaluating BIMZELX[®]▼(bimekizumab) versus SKYRIZI® (risankizumab) in active psoriatic arthritis

Brussels (Belgium), September 30, 2024 – 07:00 (CET) – UCB, a global biopharmaceutical company, today announced the start of BE BOLD, a head-to-head Phase 3b study, comparing BIMZELX^® (bimekizumab), an IL-17A and IL-17F inhibitor, with SKYRIZI^® (risankizumab), an IL-23 inhibitor, in the treatment of adults with active psoriatic arthritis (PsA). BE BOLD is the first head-to-head study in PsA evaluating the superiority of an IL-17A and IL-17F inhibitor to an IL-23 inhibitor. 

“The conduct of head-to-head, evidence-based, clinical studies in psoriatic arthritis is important since they add to the existing scientific evidence available to healthcare professionals and patients and can help to make informed treatment decisions,” said Philip J. Mease, MD, Director of Rheumatology Research at the Providence Swedish Medical Center and Clinical Professor at the University of Washington School of Medicine in Seattle, WA, U.S. “This is the first Phase 3b head-to-head study in psoriatic arthritis to utilize the primary endpoint of ACR50 at Week 16. This robust assessment is set to provide a meaningful comparison of bimekizumab vs. risankizumab on inflamed joints, one of the areas of most concern for many people living with psoriatic arthritis. We look forward to the results and the implications for future clinical practice.”   

“In moderate to severe plaque psoriasis UCB has conducted three head-to-head Phase 3/3b studies with bimekizumab versus commonly used biologics, and results from these studies showed that bimekizumab was superior to secukinumab, ustekinumab and adalimumab,” said Fiona du Monceau, Executive Vice President, Head of Patient Evidence, UCB. “BE BOLD represents the fourth head-to-head study in the bimekizumab clinical trial program, the first to be conducted in psoriatic arthritis, and the first versus an IL-23 inhibitor. This study underscores our confidence in the potential of bimekizumab for people living with psoriatic disease. We look forward to communicating the top-line results in 2026.” 

BE BOLD is a multicentre, randomized, double-blind, risankizumab controlled, parallel-group study designed to evaluate the efficacy and safety of bimekizumab in adult study participants (n=~550) with active psoriatic arthritis. The study population will include adults with active psoriatic arthritis who are biologic treatment naïve or who had previous exposure to one tumour necrosis factor-inhibitor (TNFi) with an inadequate or intolerant response. The primary endpoint will assess American College of Rheumatology 50 (ACR50, i.e., 50 percent or greater improvement in the signs and symptoms of psoriatic arthritis) at Week 16. Key ranked secondary endpoints include minimal disease activity at Week 16, and the composite endpoint, ACR50 and PASI100 (complete skin clearance) at Week 16. 

SKYRIZI^® is a registered trademark of AbbVie Biotechnology Ltd.

Notes to editors:

About Psoriatic Arthritis

Psoriatic arthritis (PsA) is a serious, highly heterogeneous, chronic, systemic inflammatory condition affecting both the joints and skin, with a prevalence of 0.02 percent to 0.25 percent of the population and 6 percent to 41 percent of patients with psoriasis.¹ Symptoms include joint pain and stiffness, skin plaques, swollen toes and fingers (dactylitis) and inflammation of the sites where tendons or ligaments insert into the bone (enthesitis).²

About bimekizumab
Bimekizumab is a humanized monoclonal IgG1 antibody that is designed to selectively inhibit both interleukin 17A (IL-17A) and interleukin 17F (IL-17F), two key cytokines driving inflammatory processes.³

The therapeutic indications in the European Union are: 

• Plaque psoriasis: Bimekizumab is indicated for the treatment of moderate to severe plaque psoriasis in adults who are candidates for systemic therapy.⁴
• Psoriatic arthritis: Bimekizumab, alone or in combination with methotrexate, is indicated for the treatment of active psoriatic arthritis in adults who have had an inadequate response or who have been intolerant to one or more disease-modifying antirheumatic drugs (DMARDs).⁴ 
• Axial spondyloarthritis: Bimekizumab is indicated for the treatment of adults with active non radiographic axial spondyloarthritis with objective signs of inflammation as indicated by elevated C-reactive protein (CRP), and/or magnetic resonance imaging (MRI), who have responded inadequately or are intolerant to non-steroidal anti-inflammatory drugs (NSAIDs), and for the treatment of adults with active ankylosing spondylitis who have responded inadequately or are intolerant to conventional therapy.⁴ 
• Hidradenitis suppurativa: Bimekizumab is indicated for the treatment of active moderate to severe hidradenitis suppurativa (HS; acne inversa) in adults with an inadequate response to conventional systemic HS therapy.⁴

BIMZELX^®▼ (bimekizumab) EU/EEA* Important Safety Information⁴  

The most frequently reported adverse reactions with bimekizumab were upper respiratory tract infections (14.5%, 14.6%, 16.3%, 8.8% in plaque psoriasis, psoriatic arthritis, axial spondyloarthritis (axSpA) and hidradenitis suppurativa, respectively) and oral candidiasis (7.3%, 2.3%, 3.7%, 5.6% in PSO, PsA, axSpA and HS, respectively). Common adverse reactions (≥1/100 to <1/10) were oral candidiasis, tinea infections, ear infections, herpes simplex infections, oropharyngeal candidiasis, gastroenteritis, folliculitis, vulvovaginal mycotic infection (including vulvovaginal candidiasis), headache, rash, dermatitis and eczema, acne, injection site reactions, fatigue. Elderly may be more likely to experience certain adverse reactions such as oral candidiasis, dermatitis and eczema when using bimekizumab.

Bimekizumab is contraindicated in patients with hypersensitivity to the active substance or to any of the excipients and in patients with clinically important active infections (e.g. active tuberculosis).

Bimekizumab may increase the risk of infections. Treatment with bimekizumab must not be initiated in patients with any clinically important active infection. Patients treated with bimekizumab should be instructed to seek medical advice if signs or symptoms suggestive of an infection occur. If a patient develops an infection the patient should be carefully monitored. If the infection becomes serious or is not responding to standard therapy, treatment should be discontinued until the infection resolves. Prior to initiating treatment with bimekizumab, patients should be evaluated for tuberculosis (TB) infection. Bimekizumab should not be given in patients with active TB. Patients receiving bimekizumab should be monitored for signs and symptoms of active TB.

Cases of new or exacerbations of inflammatory bowel disease have been reported with bimekizumab. Bimekizumab is not recommended in patients with inflammatory bowel disease. If a patient develops signs and symptoms of inflammatory bowel disease or experiences an exacerbation of pre-existing inflammatory bowel disease, bimekizumab should be discontinued and appropriate medical management should be initiated.

Serious hypersensitivity reactions including anaphylactic reactions have been observed with IL-17 inhibitors. If a serious hypersensitivity reaction occurs, administration of bimekizumab should be discontinued immediately and appropriate therapy initiated.

Live vaccines should not be given in patients treated with bimekizumab.

Please consult the Summary of Product Characteristics in relation to other side effects, full safety and prescribing information.

European SmPC date of revision: August 2024. https://www.ema.europa.eu/en/documents/product-information/bimzelx-epar-product- information_en.pdf 

*EU/EEA means European Union/European Economic Area

▼ This medicinal product is subject to additional monitoring. This will allow quick identification of new safety information. Healthcare professionals are asked to report any suspected adverse reactions.

European SmPC date of revision: August 2024.

Last accessed: September 2024.

For further information, contact UCB: 

Investor Relations
Antje Witte
T +32.2.559.94.14
email antje.witte@ucb.com

Corporate Communications
Laurent Schots
T +32.2.559.92.64
email laurent.schots@ucb.com

Brand Communications
Eimear O’Brien
T +32.2.559.92.71
email eimear.obrien@ucb.com

About UCB 
UCB, Brussels, Belgium (www.ucb.com) is a global biopharmaceutical company focused on the discovery and development of innovative medicines and solutions to transform the lives of people living with severe diseases of the immune system or of the central nervous system. With approximately 9,000 people in approximately 40 countries, the company generated revenue of €5.3 billion in 2023. UCB is listed on Euronext Brussels (symbol: UCB). Follow us on Twitter: @UCB_news.

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References

1. Ogdie A, Weiss P. The epidemiology of psoriatic arthritis. Rheum Dis Clin North Am. 2015;41:545-68.
    
2. Mease PJ, Armstrong AW. Managing patients with psoriatic disease: the diagnosis and pharmacologic treatment of psoriatic arthritis in patients with psoriasis. Drugs. 2014;74:423–41.
3. Glatt S, Helmer E, Haier B, et al. First-in-human randomized study of bimekizumab, a humanized monoclonal antibody and selective dual inhibitor of IL-17A and IL-17F, in mild psoriasis. Br J Clin Pharmacol. 2017;83:991–1001.
4. BIMZELX^® (bimekizumab) EU SmPC. https://www.ema.europa.eu/en/documents/product-information/bimzelx-epar-product-information_en.pdf. Accessed on September 2024.