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Enfuvirtide

Enfuvirtide is an HIV-1 fusion-inhibiting peptide marketed as FUZEON. Its role is combination antiretroviral treatment in selected treatment-experienced patients.

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At a glance

Evidence stage
Approved use
Regulatory status
FUZEON was US-approved for combination treatment of treatment-experienced HIV-1 infection; the current FDA application record lists the product as discontinued.
Research context
Enfuvirtide is an HIV-1 fusion-inhibiting peptide marketed as FUZEON. Its role is combination antiretroviral treatment in selected treatment-experienced patients.

What this is

  • Enfuvirtide is an HIV-1 fusion-inhibiting peptide marketed as FUZEON. Its role is combination antiretroviral treatment in selected treatment-experienced patients.

What this isn't

  • A recommendation to use, prepare, combine, or administer a product
  • Evidence that a related molecule or a differently formulated product has the same effects

Key terms

Enfuvirtide is an HIV-1 fusion-inhibiting peptide marketed as FUZEON. Its role is combination antiretroviral treatment in selected treatment-experienced patients.

Enfuvirtide targets the viral gp41 protein involved in fusion of HIV-1 with a host cell. By interfering with that step, it blocks viral entry rather than suppressing an intracellular replication enzyme. It is used with other active antiretrovirals; a fusion inhibitor alone is not a complete treatment strategy or a cure for HIV. Product label.

Evidence limits

How to read the evidence

The result supports an add-on strategy in a historical resistant-virus population, not superiority over all modern combinations. FDA currently lists FUZEON as discontinued. FDA application record. The accessible label is dated 2018; this does not establish a currently available product or justify an unregulated replacement. Product-specific scope.

Sources appraised 2026-10-28. Educational information; not medical advice. Study findings apply to the populations, preparations and outcomes described.

External sources and citations

  1. FUZEON prescribing information (FDA, 2018)
  2. TORO-1 enfuvirtide randomized trial
  3. FDA application NDA021481 — discontinued FUZEON

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Foundational literacy pieces that help interpret evidence stage, product identity, and study design.

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Same-family videos and articles from the Articles & Media channel. Educational references only.

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