TheraRadar

Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

ZEVALIN

IBRITUMOMAB TIUXETAN
Oncology Approved 2002-02-19

Zevalin (ibritumomab tiuxetan) is a CD20-directed radiotherapeutic antibody indicated for the treatment of adult patients with specific forms of B-cell non-Hodgkin's lymphoma (NHL). It is used to treat patients with relapsed or refractory, low-grade or follicular B-cell NHL. Additionally, the drug is indicated for patients with previously untreated follicular NHL who have achieved a partial or complete response following first-line chemotherapy.

Source: FDA Label • SPECTRUM PHARMS

How ZEVALIN Works

Ibritumomab tiuxetan targets the CD20 antigen, a protein expressed on the surface of more than 90% of B-cell non-Hodgkin’s lymphomas and mature B lymphocytes. The antibody is covalently linked to a chelate that binds the radioisotope Y-90, which delivers beta radiation to the site of the tumor. This beta emission induces cellular damage by forming free radicals within the target cells and neighboring cells.

Source: FDA Label
5
Indications
--
Phase 3 Trials
2
Priority Reviews
24
Years on Market

Details

Status
Prescription
First Approved
2002-02-19
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: IBRITUMOMAB TIUXETAN

ZEVALIN Approval History

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What ZEVALIN Treats

1 indications

ZEVALIN is approved for 1 conditions since its original approval in 2002. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Non-Hodgkin's Lymphoma
Source: FDA Label

ZEVALIN Boxed Warning

SERIOUS INFUSION REACTIONS, PROLONGED AND SEVERE CYTOPENIAS, and SEVERE CUTANEOUS AND MUCOCUTANEOUS REACTIONS Serious Infusion Reactions: Deaths have occurred within 24 hours of rituximab infusion, an essential component of the Zevalin therapeutic regimen. These fatalities were associated with hypoxia, pulmonary infiltrates, acute respiratory distress syndrome, myocardial infarction, ventricular fibrillation, or cardiogenic shock. Most (80%) fatalities occurred with the first rituximab infusion ...

ZEVALIN Target & Pathway

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Target

CD20 (B-Lymphocyte Antigen CD20) Cell Surface Marker

A protein found on the surface of B-cells but not stem cells or plasma cells. Anti-CD20 antibodies deplete B-cells, making them effective in B-cell cancers and autoimmune diseases where B-cells drive pathology.

ZEVALIN Competitors

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10 other drugs also target CD20. Compare mechanisms, indications, and trial activity.

View all 10 CD20 drugs →
Drug = Competitor name Company = Manufacturer N indic. = FDA-approved indications → Date = Patent/exclusivity expiry

Competitors share the same molecular target (CD20). Earlier expiry dates signal biosimilar/generic opportunities.

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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.

ZEVALIN FDA Label Details

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Indications & Usage

FDA Label (PDF)

Zevalin is a CD20-directed radiotherapeutic antibody administered as part of the Zevalin therapeutic regimen indicated for the treatment of adult patients with: relapsed or refractory, low-grade or follicular B-cell non-Hodgkin's lymphoma (NHL) . previously untreated follicular NHL who achieve a partial or complete response to first-line chemotherapy . 1.1 Relapsed or Refractory, Low-grade or Follicular NHL Zevalin is indicated for the treatment of adult patients with relapsed or refractory, low-grade or follicular B-cell non-Hodgkin's lymphoma (NHL). 1.2 Previously Untreated Follicular NHL Ze...

⚠️ BOXED WARNING

WARNING: SERIOUS INFUSION REACTIONS, PROLONGED AND SEVERE CYTOPENIAS, and SEVERE CUTANEOUS AND MUCOCUTANEOUS REACTIONS Serious Infusion Reactions: Deaths have occurred within 24 hours of rituximab infusion, an essential component of the Zevalin therapeutic regimen. These fatalities were associated w...

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Data Sources

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