The first and only approved
biologic to selectively inhibit both IL-17A and IL-17F1

MOA

IL-17F is a key driver in HS, more prevalent than IL-17A2,3

  • Both IL-17A and IL-17F are key drivers of inflammation and disease progression in HS2
  • Over time, IL-17F becomes the dominant cytokine in driving inflammation3
  • Predominantly IL-17F-expressing cells were found to be highly associated with HS tunnels3

Dual blocking of IL-17F + IL-17A may provide more inhibition of key drivers of HS than blocking IL-17A alone4*

Immune cells that produce
IL-17A & IL-17F.5

HS MOA

IL-17A & IL-17F homodimers and heterodimers bind to the same receptor complex.5

HS MOA

BIMZELX binds to IL-17 A+A, F+F, and A+F The dual inhibition of BIMZELX neutralizes both IL-17A and F and provides more suppression of inflammation versus targeting IL-17A alone.3,5†

HS MOA
Image
Dual blocking of IL-17F + IL-17A

Adapted from: Tanaka Y, Shaw S. Bimekizumab for the treatment of psoriatic arthritis. Expert Rev Clin Immunol. 2024;20(2):155-168.5

Based on preclinical in vitro studies.

The clinical relevance of the mechanism of action is unknown. For illustrative purposes only.

IL-17F is a key driver in HS, overexpressed, and more prevalent than IL-17A2,4

Image
IL-17A and IL-17F Gene Expression Levels

IL-17A

Image
IL-17A

IL-17F

Image
IL-17F

50% structural homology4

  • In lesional HS skin, IL-17A expression was ~130 times higher than in healthy tissue.2
  • IL-17F levels were even more elevated, with a ~155-fold increase.2

HS=hidradenitis suppurativa; IL=interleukin; MOA=mechanism of action; TH17=T helper 17 cells.

References: 1. BIMZELX [prescribing information]. Smyrna, GA: UCB, Inc. 2. Rumberger BE, Boarder EL, Owens SL, et al. Transcriptomic analysis of hidradenitis suppurativa skin suggests roles for multiple inflammatory pathways in disease pathogenesis. Inflamm Res. 2020;69(10):967-973. 3. Rastrick J, Edwards H, Ferecsko AS, et al. The roles of interleukin (IL)-17A and IL-17F in hidradenitis suppurativa pathogenesis: evidence from human in vitro preclinical experiments and clinical samples. Br J Dermatol. 2025;192(4):660-671. 4. Hymowitz SG, Filvaroff EH, Yin JP, et al. IL-17s adopt a cystine knot fold: structure and activity of a novel cytokine, IL-17F, and implications for receptor binding. EMBO J. 2001;20(19):5332-5341. 5. Tanaka Y, Shaw S. Bimekizumab for the treatment of psoriatic arthritis. Expert Rev Clin Immunol. 2024;20(2):155-168.

US-BK-2501390

INDICATIONS

BIMZELX is indicated for the treatment of adults with active psoriatic arthritis, active non-radiographic axial spondyloarthritis with objective signs of inflammation, active ankylosing spondylitis, moderate-to-severe plaque psoriasis who are candidates for systemic therapy or phototherapy, and moderate-to-severe hidradenitis suppurativa.

 

IMPORTANT SAFETY INFORMATION

Suicidal Ideation and Behavior

BIMZELX may increase the risk of suicidal ideation and behavior (SI/B). A causal association between treatment with BIMZELX and increased risk of SI/B has not been definitively established. Prescribers should weigh the potential risks and benefits before using BIMZELX in patients with a history of severe depression or SI/B. Advise monitoring for the emergence or worsening of depression, suicidal ideation, or other mood changes. If such changes occur, instruct to promptly seek medical attention, refer to a mental health professional as appropriate, and re-evaluate the risks and benefits of continuing treatment.

Infections

BIMZELX may increase the risk of infections, including serious infections. Do not initiate treatment with BIMZELX in patients with any clinically important active infection until the infection resolves or is adequately treated. In patients with a chronic infection or a history of recurrent infection, consider the risks and benefits prior to prescribing BIMZELX. Instruct patients to seek medical advice if signs or symptoms suggestive of clinically important infection occur. If a patient develops such an infection or is not responding to standard therapy, monitor the patient closely and do not administer BIMZELX until the infection resolves.

Tuberculosis

Evaluate patients for tuberculosis (TB) infection prior to initiating treatment with BIMZELX. Avoid the use of BIMZELX in patients with active TB infection. Initiate treatment of latent TB prior to administering BIMZELX. Consider anti-TB therapy prior to initiation of BIMZELX in patients with a past history of latent or active TB in whom an adequate course of treatment cannot be confirmed. Closely monitor patients for signs and symptoms of active TB during and after treatment.

Liver Biochemical Abnormalities

Elevated serum transaminases were reported in clinical trials with BIMZELX. Test liver enzymes, alkaline phosphatase, and bilirubin at baseline, periodically during treatment with BIMZELX, and according to routine patient management. If treatment-related increases in liver enzymes occur and drug-induced liver injury is suspected, interrupt BIMZELX until a diagnosis of liver injury is excluded. Permanently discontinue use of BIMZELX in patients with causally associated combined elevations of transaminases and bilirubin. Avoid use of BIMZELX in patients with acute liver disease or cirrhosis.

Inflammatory Bowel Disease

Cases of inflammatory bowel disease (IBD) have been reported in patients treated with IL-17 inhibitors, including BIMZELX. Avoid use of BIMZELX in patients with active IBD. During BIMZELX treatment, monitor patients for signs and symptoms of IBD and discontinue treatment if new onset or worsening of signs and symptoms occurs.

Immunizations

Prior to initiating therapy with BIMZELX, complete all age-appropriate vaccinations according to current immunization guidelines. Avoid the use of live vaccines in patients treated with BIMZELX.

MOST COMMON ADVERSE REACTIONS

Most common (≥1%) adverse reactions in plaque psoriasis and hidradenitis suppurativa include upper respiratory tract infections, oral candidiasis, headache, injection site reactions, tinea infections, gastroenteritis, herpes simplex infections, acne, folliculitis, other candida infections, and fatigue.

Most common (≥2%) adverse reactions in psoriatic arthritis include upper respiratory tract infections, oral candidiasis, headache, diarrhea, and urinary tract infections.

Most common (≥2%) adverse reactions in non-radiographic axial spondyloarthritis include upper respiratory tract infections, oral candidiasis, headache, diarrhea, cough, fatigue, musculoskeletal pain, myalgia, tonsillitis, transaminase increase, and urinary tract infections.

Most common (≥2%) adverse reactions in ankylosing spondylitis include upper respiratory tract infections, oral candidiasis, headache, diarrhea, injection site pain, rash, and vulvovaginal mycotic infection.

Please see the full Prescribing Information.

Most common (≥2%) adverse reactions in PsA, nr-axSpA, and AS include upper respiratory tract infections, oral candidiasis, headache, diarrhea, and urinary tract infections. Other most common (≥2%) adverse reactions specific to each indication include: urinary tract infections (PsA); cough, fatigue, musculoskeletal pain, myalgia, tonsillitis, transaminase increase, and urinary tract infections (nr-axSpA); injection site pain, rash, and vulvovaginal mycotic infections (AS).