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Data updated: Mar 10, 2026

SILIQ

BRODALUMAB Interleukin 17 Receptor A Antagonists
Immunology Approved 2017-02-15

SILIQ (brodalumab) is an interleukin-17 receptor A (IL-17RA) antagonist indicated for the treatment of moderate to severe plaque psoriasis in adult patients. It is specifically intended for individuals who are candidates for systemic therapy or phototherapy. The medication serves as a therapeutic option for patients who have either failed to respond or have lost response to other systemic therapies.

Source: FDA Label • VALEANT LUXEMBOURG • Interleukin-17 Receptor A Antagonist

How SILIQ Works

Brodalumab is a human monoclonal IgG2 antibody that selectively binds to human IL-17RA, a protein expressed on the cell surface. By binding to this receptor, the drug inhibits interactions with multiple cytokines, including IL-17A, IL-17F, IL-17C, the IL-17A/F heterodimer, and IL-25. This blockade prevents the IL-17 cytokine-induced release of pro-inflammatory cytokines and chemokines.

Source: FDA Label
1
Indication
--
Phase 3 Trials
9
Years on Market

Details

Status
Prescription
First Approved
2017-02-15
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: BRODALUMAB

SILIQ Approval History

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What SILIQ Treats

1 indications

SILIQ is approved for 1 conditions since its original approval in 2017. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Plaque Psoriasis
Source: FDA Label

SILIQ Boxed Warning

SUICIDAL IDEATION AND BEHAVIOR Suicidal ideation and behavior, including completed suicides, have occurred in patients treated with SILIQ. Prior to prescribing SILIQ, weigh the potential risks and benefits in patients with a history of depression and/or suicidal ideation or behavior. Patients with new or worsening suicidal ideation and behavior should be referred to a mental health professional, as appropriate. Advise patients and caregivers to seek medical attention for manifestations of suicid...

SILIQ 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.

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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.

SILIQ FDA Label Details

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Indications & Usage

FDA Label (PDF)

SILIQ ® (brodalumab) is indicated for the treatment of moderate to severe plaque psoriasis in adult patients who are candidates for systemic therapy or phototherapy and have failed to respond or have lost response to other systemic therapies. SILIQ is a human interleukin-17 receptor A (IL-17RA) antagonist indicated for the treatment of moderate to severe plaque psoriasis in adult patients who are candidates for systemic therapy or phototherapy and have failed to respond or have lost response to other systemic therapies.

⚠️ BOXED WARNING

WARNING: SUICIDAL IDEATION AND BEHAVIOR Suicidal ideation and behavior, including completed suicides, have occurred in patients treated with SILIQ. Prior to prescribing SILIQ, weigh the potential risks and benefits in patients with a history of depression and/or suicidal ideation or behavior. Patien...

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Data Sources

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