TheraRadar

Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

SELARSDI

USTEKINUMAB-AEKN
Immunology Approved 2024-04-16

SELARSDI (ustekinumab-aekn) is a human interleukin-12 and -23 antagonist indicated for the treatment of several chronic inflammatory conditions. It is approved for use in adult and pediatric patients aged six years and older with moderate to severe plaque psoriasis or active psoriatic arthritis. Additionally, the drug is indicated for adult patients with moderately to severely active Crohn’s disease or ulcerative colitis. Its therapeutic role focuses on managing systemic inflammation in patients who are candidates for phototherapy or systemic therapy.

Source: FDA Label • ALVOTECH USA INC

How SELARSDI Works

SELARSDI is a monoclonal antibody that binds to the p40 protein subunit shared by the IL-12 and IL-23 cytokines. By targeting this subunit, the drug prevents these cytokines from interacting with the IL-12Rβ1 receptor found on the surface of immune cells. This disruption inhibits signaling pathways and cytokine cascades responsible for natural killer cell activation and T-cell differentiation. This mechanism helps control the chronic inflammation and immune responses that characterize psoriasis and inflammatory bowel diseases.

Source: FDA Label
1
Indication
--
Phase 3 Trials
1
Years on Market

Details

Status
Prescription
First Approved
2024-04-16
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: USTEKINUMAB-AEKN

SELARSDI Approval History

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What SELARSDI Treats

4 indications

SELARSDI is approved for 4 conditions since its original approval in 2024. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Plaque Psoriasis
  • Psoriatic Arthritis
  • Crohn’s Disease
  • Ulcerative Colitis
Source: FDA Label

SELARSDI Target & Pathway

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Target

IL-23 (Interleukin-23) Cytokine

A cytokine that promotes Th17 cell development and maintenance. IL-23 is upstream of IL-17 in the inflammatory cascade driving psoriasis and inflammatory bowel disease. Blocking IL-23 provides sustained control of these conditions.

Auto-substitute OK for Stelara

Pharmacists can substitute SELARSDI for Stelara without calling the prescriber. This is a lower-cost alternative with no clinically meaningful differences.

SELARSDI Competitors

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6 other drugs also target IL-12. Compare mechanisms, indications, and trial activity.

Drug = Competitor name Company = Manufacturer N indic. = FDA-approved indications → Date = Patent/exclusivity expiry

Competitors share the same molecular target (IL-12). Earlier expiry dates signal biosimilar/generic opportunities.

Drugs Similar to SELARSDI

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

HULIO
ADALIMUMAB-FKJP
4 shared
Viatris
Shared indications:
Psoriatic ArthritisCrohn’s DiseaseUlcerative Colitis +1 more
IDACIO
ADALIMUMAB-AACF
4 shared
Fresenius Kabi
Shared indications:
Psoriatic ArthritisCrohn’s DiseaseUlcerative Colitis +1 more
IMULDOSA
USTEKINUMAB-SRLF
4 shared
ACCORD BIOPHARMA INC.
Shared indications:
Plaque PsoriasisPsoriatic ArthritisCrohn’s Disease +1 more
SIMLANDI
ADALIMUMAB-RYVK
4 shared
ALVOTECH USA INC
Shared indications:
Psoriatic ArthritisCrohn’s DiseaseUlcerative Colitis +1 more
STARJEMZA
ustekinumab-hmny
4 shared
BIO-THERA SOLUTIONS LTD
Shared indications:
Plaque PsoriasisPsoriatic ArthritisCrohn’s Disease +1 more
ABRILADA
ADALIMUMAB-AFZB
3 shared
Pfizer
Shared indications:
Psoriatic ArthritisCrohn’s DiseaseUlcerative Colitis
CYLTEZO
ADALIMUMAB-ADBM
3 shared
Boehringer Ingelheim
Shared indications:
Psoriatic ArthritisUlcerative ColitisPlaque Psoriasis
HADLIMA
ADALIMUMAB-BWWD
3 shared
SAMSUNG BIOEPIS CO LTD
Shared indications:
Psoriatic ArthritisCrohn’s DiseaseUlcerative Colitis
HUMIRA
ADALIMUMAB
3 shared
AbbVie
Shared indications:
Psoriatic ArthritisUlcerative ColitisPlaque Psoriasis
OTULFI
USTEKINUMAB-AAUZ
3 shared
Fresenius Kabi
Shared indications:
Plaque PsoriasisPsoriatic ArthritisUlcerative Colitis
PYZCHIVA
USTEKINUMAB-TTWE
3 shared
SAMSUNG BIOEPIS CO LTD
Shared indications:
Plaque PsoriasisPsoriatic ArthritisUlcerative Colitis
REMICADE
INFLIXIMAB
3 shared
Johnson & Johnson
Shared indications:
Ulcerative ColitisPsoriatic ArthritisPlaque Psoriasis
STELARA
USTEKINUMAB
3 shared
Johnson & Johnson
Shared indications:
Plaque PsoriasisPsoriatic ArthritisUlcerative Colitis
WEZLANA
USTEKINUMAB-AUUB
3 shared
Amgen
Shared indications:
Plaque PsoriasisPsoriatic ArthritisUlcerative Colitis
YESINTEK
USTEKINUMAB-KFCE
3 shared
BIOCON BIOLOGICS INC
Shared indications:
Plaque PsoriasisPsoriatic ArthritisUlcerative Colitis
YUFLYMA
ADALIMUMAB-AATY
3 shared
CELLTRION
Shared indications:
Psoriatic ArthritisUlcerative ColitisPlaque Psoriasis
YUSIMRY
ADALIMUMAB-AQVH
3 shared
COHERUS BIOSCIENCES INC
Shared indications:
Psoriatic ArthritisCrohn’s DiseaseUlcerative Colitis
AMJEVITA
ADALIMUMAB-ATTO
2 shared
Amgen
Shared indications:
Psoriatic ArthritisUlcerative Colitis
BIMZELX
BIMEKIZUMAB-BKZX
2 shared
UCB INC
Shared indications:
Plaque PsoriasisPsoriatic Arthritis
CIMZIA
CERTOLIZUMAB PEGOL
2 shared
UCB INC
Shared indications:
Psoriatic ArthritisPlaque Psoriasis
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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.

SELARSDI FDA Label Details

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Indications & Usage

FDA Label (PDF)

SELARSDI is a human interleukin-12 and -23 antagonist indicated for the treatment of: Adult patients with: moderate to severe plaque psoriasis (PsO) who are candidates for phototherapy or systemic therapy. active psoriatic arthritis (PsA) . moderately to severely active Crohn’s disease (CD). moderately to severely active ulcerative colitis. Pediatric patients 6 years and older with: moderate to severe plaque psoriasis (PsO), who are candidates for phototherapy or systemic therapy. active psoriatic arthritis (PsA) . 1.1 Plaque Psoriasis (PsO) SELARSDI™ is indicated for the treatment of adults a...

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Data Sources

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