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Data updated: Jun 28, 2026

BIMZELX (bimekizumab-bkzx) · UCB INC

Immunology Approved 2023-10-17

BIMZELX (bimekizumab-bkzx) is a humanized monoclonal antibody indicated for the treatment of several chronic inflammatory conditions in adult patients. It is approved for adults with moderate to severe plaque psoriasis who are candidates for systemic therapy or phototherapy, as well as those with active psoriatic arthritis. Additionally, the therapy is indicated for the treatment of active non-radiographic axial spondyloarthritis, active ankylosing spondylitis, and moderate to severe hidradenitis suppurativa.

How BIMZELX Works

Bimekizumab-bkzx is an immunoglobulin IgG1/κ monoclonal antibody that selectively binds to the IL-17A, IL-17F, and IL-17-AF cytokines. By binding to these targets, the drug inhibits their interaction with the IL-17 receptor complex. This action prevents the release of proinflammatory cytokines and chemokines that are involved in normal and pathological inflammatory and immune responses.

4
Indications
--
Phase 3 Trials
2
Years on Market

Details

Status
Prescription
First Approved
2023-10-17
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: BIMEKIZUMAB-BKZX

BIMZELX Approval History

2024
2025
2026
Original
New Indication
New Form
Label Update
6 FDA actions from 2023 to 2024 · 3 indication expansions
Nov 2024 SUPPL
Efficacy
Oct 2024 SUPPL
Efficacy
Sep 2024 SUPPL
Efficacy

What BIMZELX Treats

5 indications

BIMZELX is approved for 5 conditions since its original approval in 2023. These indications span multiple therapeutic areas including oncology, immunology, and more.

Source: FDA Label

BIMZELX Target & Pathway

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Target

IL-17 (Interleukin-17) Cytokine

A pro-inflammatory cytokine produced by Th17 cells that plays a key role in psoriasis, psoriatic arthritis, and ankylosing spondylitis. Blocking IL-17 reduces the inflammatory cascade that causes skin plaques and joint inflammation.

BIMZELX Competitive Set

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

What's emerging in BIMZELX's indications

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Phase 3 candidates targeting molecules with no FDA-approved drug, in indications BIMZELX treats. First-in-class if their pivotal trials read out positive.

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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

BIMZELX FDA Label Details

Indications & Usage

FDA Label (PDF)

BIMZELX is a humanized interleukin-17A and F antagonist indicated for the treatment of: Moderate to severe plaque psoriasis (PSO) in adults who are candidates for systemic therapy or phototherapy. Adults with active psoriatic arthritis (PsA) . Adults with active non-radiographic axial spondyloarthritis ( nr-axSpA ) with objective signs of inflammation. Adults with active ankylosing spondylitis ( AS ). Adults with moderate to severe hidradenitis suppurativa (HS) . 1.1 Plaque Psoriasis BIMZELX is indicated for the treatment of moderate to severe plaque psoriasis in adults who are candidates for ...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.