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Data updated: Mar 10, 2026

CAMPATH

ALEMTUZUMAB CD52-directed Antibody Interactions
Oncology Approved 2001-05-07

CAMPATH (alemtuzumab) is a CD52-directed cytolytic antibody. It is indicated as a single-agent therapy for the treatment of patients with B-cell chronic lymphocytic leukemia (B-CLL). The medication provides a targeted approach for managing this malignancy by focusing on specific immune cell populations.

Source: FDA Label • Sanofi • CD52-directed Cytolytic Antibody

How CAMPATH Works

Alemtuzumab binds to CD52, an antigen located on the surface of B and T lymphocytes, monocytes, macrophages, and natural killer cells. It also targets a proportion of bone marrow cells that express variable levels of this antigen. Following cell surface binding to leukemic cells, the drug induces antibody-dependent cellular-mediated lysis, leading to the destruction of the targeted cells.

Source: FDA Label
4
Indications
--
Phase 3 Trials
2
Priority Reviews
24
Years on Market

Details

Status
Prescription
First Approved
2001-05-07
Routes
INTRAVENOUS
Dosage Forms
VIAL

Companies

Active Ingredient: ALEMTUZUMAB

CAMPATH Approval History

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What CAMPATH Treats

1 indications

CAMPATH is approved for 1 conditions since its original approval in 2001. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • B-Cell Chronic Lymphocytic Leukemia
Source: FDA Label

CAMPATH Boxed Warning

CYTOPENIAS, INFUSION-RELATED REACTIONS, AND INFECTIONS WARNING: CYTOPENIAS, INFUSION-RELATED REACTIONS, AND INFECTIONS See full prescribing information for complete boxed warning. Serious, including fatal, cytopenias, infusion-related reactions, and infections can occur (5.1–5.3). Limit doses to 30 mg (single) and 90 mg (cumulative weekly); higher doses increase risk of pancytopenia. ( 2.1 ) Escalate dose gradually and monitor patients during infusion. Withhold therapy for Grade 3 or 4 infusion-...

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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.

CAMPATH FDA Label Details

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Indications & Usage

FDA Label (PDF)

CAMPATH is indicated as a single agent for the treatment of B-cell chronic lymphocytic leukemia (B-CLL). CAMPATH is a CD52-directed cytolytic antibody indicated as a single agent for the treatment of B-cell chronic lymphocytic leukemia (B-CLL).

⚠️ BOXED WARNING

WARNING: CYTOPENIAS, INFUSION-RELATED REACTIONS, AND INFECTIONS WARNING: CYTOPENIAS, INFUSION-RELATED REACTIONS, AND INFECTIONS See full prescribing information for complete boxed warning. Serious, including fatal, cytopenias, infusion-related reactions, and infections can occur (5.1–5.3). Limit dos...

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Data Sources

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