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Ustekinumab

Generic Name
Ustekinumab
Brand Names
Stelara, Pyzchiva, Uzpruvo, Wezenla, Steqeyma, Otulfi, Fymskina, Eksunbi, Absimky, Imuldosa, Yesintek, Qoyvolma, Usymro
Drug Type
Biotech
CAS Number
815610-63-0
Unique Ingredient Identifier
FU77B4U5Z0

Overview

Ustekinumab is a human immunoglobulin (Ig) G1 kappa monoclonal antibody directed against interleukin(IL)-12 and IL-23, which are cytokines that are involved in immune and inflammatory responses. It was generated via recombinant human IL-12 immunization of human Ig (hu-Ig) transgenic mice. It is a targeted biologic disease-modifying anti-rheumatic drug (bDMARDs) that is used in the management of various inflammatory conditions that involve the activation of IL-12 and IL-23 signalling pathways. The therapeutic use of the drug started in Canada, the US, and Europe since 2009 when it was first approved for the treatment of adult patients with moderate to severe plaque psoriasis and active psoriatic arthritis, alone or in combination with methotrexate. In September 2016, ustekinumab was additionally approved for the management of moderate to severe Crohn's disease in selected adult patients. In October 2019, it was also approved by the FDA for use to manage moderately to severely active ulcerative colitis in adults. Ustekinumab is currently the first and only approved biologic therapy for ulcerative colitis that targets the interleukin (IL)-12 and IL-23 cytokines. The dosing regimen for ustekinumab is based on the patient's weight and there are intravenous and subcutaneous formulations of the drug based on the dosing schedule and condition being treated. Ustekinumab is commonly marketed under the trade name STELARA.

Indication

Ustekinumab is indicated for the management of moderate to severe plaque psoriasis in patients 6 years of age and older who are candidates for phototherapy or systemic therapy. In adult patients, it is also indicated for the management of active psoriatic arthritis (PsA) alone or in combination with methotrexate, moderately to severely active Crohn’s disease (CD) and moderately to severely active ulcerative colitis.

Associated Conditions

  • Severe Plaque psoriasis
  • Ulcerative Colitis, Active Severe
  • Active Psoriatic arthritis
  • Moderate Plaque psoriasis
  • Moderate Ulcerative colitis
  • Moderate, active Crohn´s Disease
  • Severe, active Crohn´s Disease

Research Report

Published: Jul 11, 2025

Ustekinumab (Stelara®): A Comprehensive Monograph on a First-in-Class IL-12/23 Inhibitor

Executive Summary

Ustekinumab is a first-in-class, fully human IgG1κ monoclonal antibody that represents a significant milestone in the treatment of immune-mediated inflammatory diseases. Marketed under the brand name Stelara® and now available as multiple biosimilars, it functions as a dual inhibitor, uniquely targeting the shared p40 protein subunit of two critical cytokines: Interleukin-12 (IL-12) and Interleukin-23 (IL-23).[1] This targeted mechanism of action allows Ustekinumab to potently downregulate the Th1 and Th17 inflammatory pathways, which are central to the pathophysiology of several autoimmune conditions.[1]

The therapeutic utility of Ustekinumab has been firmly established through a robust clinical development program, leading to regulatory approvals for a range of indications. These include the treatment of moderate-to-severe plaque psoriasis (PsO), active psoriatic arthritis (PsA), moderately to severely active Crohn's disease (CD), and moderately to severely active ulcerative colitis (UC).[1] Its approval extends to pediatric populations for both plaque psoriasis and psoriatic arthritis, underscoring its well-characterized efficacy and safety profile across different age groups.[7] Clinical trials have consistently demonstrated that Ustekinumab can achieve significant clinical endpoints, including skin clearance in psoriasis, joint symptom improvement in psoriatic arthritis, and clinical and endoscopic remission in inflammatory bowel diseases.[9]

Continue reading the full research report

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