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Data updated: Mar 10, 2026

ULTOMIRIS

RAVULIZUMAB-CWVZ Complement Inhibitors
Approved 2018-12-21

Ultomiris (ravulizumab-cwvz) is a complement inhibitor indicated for the treatment of adult and pediatric patients aged one month and older with paroxysmal nocturnal hemoglobinuria (PNH) or atypical hemolytic uremic syndrome (aHUS). It is also approved for adult patients with anti-acetylcholine receptor (AChR) antibody-positive generalized myasthenia gravis (gMG) and anti-aquaporin-4 (AQP4) antibody-positive neuromyelitis optica spectrum disorder (NMOSD). The therapy is used to inhibit complement-mediated processes, though it is specifically not indicated for Shiga toxin E. coli related hemolytic uremic syndrome (STEC-HUS).

Source: FDA Label • ALEXION PHARM • Complement Inhibitor

How ULTOMIRIS Works

Ravulizumab-cwvz is a terminal complement inhibitor that binds with high affinity to the complement protein C5. This binding prevents the cleavage of C5 into C5a and C5b, which stops the formation of the membrane attack complex (MAC). By blocking MAC formation, the drug inhibits terminal complement-mediated intravascular hemolysis in PNH and thrombotic microangiopathy in aHUS. In gMG and NMOSD, the therapeutic effect is presumed to involve the reduction or inhibition of terminal complement complex deposition at the neuromuscular junction or other targeted tissues.

Source: FDA Label
7
Indications
--
Phase 3 Trials
4
Priority Reviews
7
Years on Market

Details

Status
Prescription
First Approved
2018-12-21
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: RAVULIZUMAB-CWVZ

ULTOMIRIS Approval History

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What ULTOMIRIS Treats

4 indications

ULTOMIRIS is approved for 4 conditions since its original approval in 2018. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Paroxysmal nocturnal hemoglobinuria (PNH)
  • Atypical hemolytic uremic syndrome (aHUS)
  • Anti-acetylcholine receptor (AChR) antibody-positive generalized myasthenia gravis (gMG)
  • Anti-aquaporin-4 (AQP4) antibody-positive neuromyelitis optica spectrum disorder (NMOSD)
Source: FDA Label

ULTOMIRIS Boxed Warning

SERIOUS MENINGOCOCCAL INFECTIONS ULTOMIRIS, 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 ...

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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.

ULTOMIRIS FDA Label Details

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Indications & Usage

FDA Label (PDF)

ULTOMIRIS is a complement inhibitor indicated for: the treatment of adult and pediatric patients one month of age and older with paroxysmal nocturnal hemoglobinuria (PNH). the treatment of adult and pediatric patients one month of age and older with atypical hemolytic uremic syndrome (aHUS) to inhibit complement-mediated thrombotic microangiopathy (TMA). Limitations of Use: ULTOMIRIS is not indicated for the treatment of patients with Shiga toxin E. coli related hemolytic uremic syndrome (STEC-HUS). the treatment of adult patients with generalized myasthenia gravis (gMG) who are anti-acetylcho...

⚠️ BOXED WARNING

WARNING: SERIOUS MENINGOCOCCAL INFECTIONS ULTOMIRIS, 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 inhibit...

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Data Sources

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