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Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

LUNSUMIO

MOSUNETUZUMAB-AXGB
Oncology Approved 2022-12-22

LUNSUMIO (mosunetuzumab-axgb) is a bispecific CD20-directed CD3 T-cell engager indicated for the treatment of adult patients with follicular lymphoma. It is specifically used for cases where the disease is relapsed or refractory following two or more lines of systemic therapy. The drug received accelerated approval based on response rate, and its continued indication may depend on the verification of clinical benefit in confirmatory trials.

Source: FDA Label • Roche

How LUNSUMIO Works

Mosunetuzumab-axgb is a bispecific antibody that binds to the CD3 receptor on T-cells and the CD20 antigen on lymphoma cells and certain healthy B-cells. By engaging both targets simultaneously, the drug activates the T-cells and triggers the release of proinflammatory cytokines. This immune activation leads to the direct lysis of the targeted B-cells.

Source: FDA Label
3
Indications
--
Phase 3 Trials
1
Priority Reviews
3
Years on Market

Details

Status
Prescription
First Approved
2022-12-22
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: MOSUNETUZUMAB-AXGB

LUNSUMIO Approval History

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What LUNSUMIO Treats

1 indications

LUNSUMIO is approved for 1 conditions since its original approval in 2022. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Follicular Lymphoma
Source: FDA Label

LUNSUMIO Boxed Warning

CYTOKINE RELEASE SYNDROME Cytokine release syndrome (CRS), including serious or life-threatening reactions, can occur in patients receiving LUNSUMIO. Initiate treatment with the LUNSUMIO step-up dosing schedule to reduce the risk of CRS. Withhold LUNSUMIO until CRS resolves or permanently discontinue based on severity [see Dosage and Administration (2.1 and 2.4) and Warnings and Precautions (5.1) ] . WARNING: CYTOKINE RELEASE SYNDROME See full prescribing information for complete boxed warning. ...

LUNSUMIO 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.

LUNSUMIO 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.

LUNSUMIO FDA Label Details

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Indications & Usage

FDA Label (PDF)

LUNSUMIO is a bispecific CD20-directed CD3 T-cell engager indicated for the treatment of adult patients with relapsed or refractory follicular lymphoma after two or more lines of systemic therapy. This indication is approved under accelerated approval based on response rate. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s). 1.1 Follicular Lymphoma LUNSUMIO is indicated for the treatment of adult patients with relapsed or refractory follicular lymphoma after two or more lines of systemic therapy. This indic...

⚠️ BOXED WARNING

WARNING: CYTOKINE RELEASE SYNDROME Cytokine release syndrome (CRS), including serious or life-threatening reactions, can occur in patients receiving LUNSUMIO. Initiate treatment with the LUNSUMIO step-up dosing schedule to reduce the risk of CRS. Withhold LUNSUMIO until CRS resolves or permanently d...

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Data Sources

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