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Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

SOLIRIS

ECULIZUMAB Complement Inhibitors
Approved 2007-03-16

Soliris (eculizumab) is a complement inhibitor indicated for the treatment of paroxysmal nocturnal hemoglobinuria (PNH) and atypical hemolytic uremic syndrome (aHUS). It is also approved for adult and pediatric patients aged six years and older with anti-acetylcholine receptor (AChR) antibody-positive generalized myasthenia gravis (gMG). Additionally, the drug is used to treat adult patients with anti-aquaporin-4 (AQP4) antibody-positive neuromyelitis optica spectrum disorder (NMOSD). The medication's therapeutic role focuses on reducing hemolysis and inhibiting complement-mediated thrombotic microangiopathy.

Source: FDA Label • ALEXION PHARM • Complement Inhibitor

How SOLIRIS Works

Eculizumab is a monoclonal antibody that binds to the complement protein C5, preventing its cleavage into C5a and C5b. This action inhibits the formation of the terminal complement complex C5b-9, which otherwise mediates cell destruction. In PNH and aHUS, this process prevents intravascular hemolysis and thrombotic microangiopathy. In patients with gMG and NMOSD, the therapeutic effect is presumed to involve the inhibition of C5b-9 deposition at the neuromuscular junction or other targeted tissues.

Source: FDA Label
6
Indications
--
Phase 3 Trials
4
Priority Reviews
18
Years on Market

Details

Status
Prescription
First Approved
2007-03-16
Routes
IV (INFUSION)
Dosage Forms
INJECTABLE

Companies

Active Ingredient: ECULIZUMAB

SOLIRIS Approval History

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What SOLIRIS Treats

4 indications

SOLIRIS is approved for 4 conditions since its original approval in 2007. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Paroxysmal nocturnal hemoglobinuria (PNH)
  • Atypical hemolytic uremic syndrome (aHUS)
  • Generalized myasthenia gravis (gMG)
  • Neuromyelitis optica spectrum disorder (NMOSD)
Source: FDA Label

SOLIRIS Boxed Warning

SERIOUS MENINGOCOCCAL INFECTIONS SOLIRIS, a complement inhibitor, increases the risk of serious infections caused by Neisseria meningitidis [see Warnings and Precautions (5.1) ] . Life-threatening and fatal meningococcal infections have occurred in patients treated with complement inhibitors. These infections may become rapidly life-threatening or fatal if not recognized and treated early. Complete or update vaccination for meningococcal bacteria (for serogroups A, C, W, Y, and B) at least 2 wee...

SOLIRIS Biosimilars

2 FDA-approved

1 can be substituted at the pharmacy without calling the prescriber. The other 1 require prescriber approval to switch.

What are biosimilars? Lower-cost alternatives to SOLIRIS with no clinically meaningful differences.

Auto-substitute OK = FDA "interchangeable" designation — pharmacist can switch without calling the doctor.

Drugs Similar to SOLIRIS

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Active Pipeline

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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.

SOLIRIS FDA Label Details

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Indications & Usage

FDA Label (PDF)

SOLIRIS is a complement inhibitor indicated for: the treatment of patients with paroxysmal nocturnal hemoglobinuria (PNH) to reduce hemolysis. the treatment of patients with atypical hemolytic uremic syndrome (aHUS) to inhibit complement-mediated thrombotic microangiopathy. Limitation of Use SOLIRIS is not indicated for the treatment of patients with Shiga toxin E. coli related hemolytic uremic syndrome (STEC-HUS). the treatment of generalized myasthenia gravis (gMG) in adult and pediatric patients six years of age and older who are anti-acetylcholine receptor (AChR) antibody positive. the tre...

⚠️ BOXED WARNING

WARNING: SERIOUS MENINGOCOCCAL INFECTIONS SOLIRIS, a complement inhibitor, increases the risk of serious infections caused by Neisseria meningitidis [see Warnings and Precautions (5.1) ] . Life-threatening and fatal meningococcal infections have occurred in patients treated with complement inhibitor...

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Data Sources

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