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Prescription medicine

Tebentafusp Brand names: Kimmtrak

Tebentafusp (Kimmtrak) is a prescription medicine. No generic is listed in FDA's NDC Directory.

  • No generic listed
  • Boxed warning

Check it at the source: the tebentafusp FDA label on DailyMed (effective August 20, 2026); every tebentafusp label on DailyMed.

Highlights of the record

FDA label of August 20, 2026; NDC Directory, Drugs@FDA and Orange Book, October 8, 2026

Boxed warning

CYTOKINE RELEASE SYNDROME.

Cytokine Release Syndrome (CRS), which may be serious or life-threatening, occurred in patients receiving KIMMTRAK. Monitor for at least 16 hours following first three infusions and then as clinically indicated [(see Dosage and Administration (2.2), see Warnings and Precautions (5.1) ]. WARNING: CYTOKINE RELEASE SYNDROME Cytokine Release Syndrome (CRS), which may be serious or life-threatening, occurred in patients receiving KIMMTRAK. Monitor for at least 16 hours following first three infusions and then as clinically indicated ( 2.2 , 5.1 ).

Used for

From the label: indications and usage

KIMMTRAK is indicated for the treatment of HLA-A*02:01-positive adult patients with unresectable or metastatic uveal melanoma.

Forms and strengths

  • 0.5ml

Injection (solution) (concentrate).

On the market

Generic approvals
No generic approved
Labelers listed (NDC)
1 of which 0 under generic applications, 1 under brand applications, repackagers included

Supply and safety

Pharmacy cost (NADAC)
Not in the survey
Shortage (FDA)
No current entry
Recalls by its makers (FDA)
No recall recorded
FAERS reports
581 through July 30, 2026

What is tebentafusp used for?

From the label: indications and usage

KIMMTRAK is indicated for the treatment of HLA-A*02:01-positive adult patients with unresectable or metastatic uveal melanoma. KIMMTRAK is a bispecific gp100 peptide-HLA-directed CD3 T cell engager indicated for the treatment of HLA-A*02:01-positive adult patients with unresectable or metastatic uveal melanoma ( 1 , 2.1 ).

FDA pharmacologic class: Bispecific gp100 Peptide-HLA-directed CD3 T Cell Engager.

Source: FDA drug label (KIMMTRAK), Immunocore Commercial LLC, effective August 20, 2026 (SPL set 24a49f57-d2fc-4ffe-9eb1-fe0460c6b067), via openFDA; the full label on DailyMed

What does the patient leaflet for tebentafusp say first?

The FDA-approved Medication Guide or Patient Information that comes with the medicine, in its own words.

From the patient leaflet: What is the most important information I should know about KIMMTRAK?

KIMMTRAK can cause serious side effects that can be severe or, life threatening, and usually happens within the first three infusions. These side effects include: Cytokine Release Syndrome (CRS). Tell your healthcare provider right away if you get any of the following symptoms: fever tiredness or weakness vomiting chills nausea low blood pressure dizziness and light headedness headache wheezing and trouble breathing rash Your healthcare provider will check for these problems during treatment with KIMMTRAK. Your healthcare provider may temporarily stop or completely stop your treatment with KIMMTRAK, if you have severe side effects. See “ What are the possible side effects of KIMMTRAK? ” for more information about side effects.

Source: FDA drug label (KIMMTRAK), Immunocore Commercial LLC, effective August 20, 2026 (SPL set 24a49f57-d2fc-4ffe-9eb1-fe0460c6b067), via openFDA; the full label on DailyMed

Is there a generic for tebentafusp (Kimmtrak)?

No generic tebentafusp is approved (Drugs@FDA, October 8, 2026).

Source: Drugs@FDA, FDA NDC Directory and the Orange Book (openFDA bulk files, October 8, 2026)

What do FAERS reports show for tebentafusp?

The FDA Adverse Event Reporting System holds 581 reports that list tebentafusp among the medicines taken, through July 30, 2026, each a report of something that happened, not proof the medicine caused it; 102 are coded as a death and 195 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is.

Reports received each year

The most reported reactions

  • Cytokine Release Syndrome (named in the label)115
  • Pyrexia (named in the label)104
  • Disease Progression (a use or a product term, not a reaction)72
  • Rash (named in the label)68
  • Hypotension (named in the label)67
  • Malignant Neoplasm Progression60
  • Chills (named in the label)57
  • Product Dose Omission Issue (a use or a product term, not a reaction)51

Side effects: the label's list and every FAERS reaction

Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026

What next?

Tebentafusp side effects
the label's list beside FAERS reports
Check an interaction
what two or more labels say about each other