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Enbrel (etanercept)

Pfizer · FDA-approved active Small molecule

Etanercept is a fusion protein that binds and neutralizes tumor necrosis factor (TNF), a key inflammatory cytokine, thereby reducing inflammation and immune activation.

Etanercept is a fusion protein that binds and neutralizes tumor necrosis factor (TNF), a key inflammatory cytokine, thereby reducing inflammation and immune activation. Used for Rheumatoid arthritis, Psoriatic arthritis, Ankylosing spondylitis.

At a glance

Generic nameEnbrel (etanercept)
Also known asEnbrel
SponsorPfizer
Drug classTNF inhibitor (TNF receptor fusion protein)
TargetTNF-alpha (TNF) and TNF-beta (lymphotoxin-alpha)
ModalitySmall molecule
Therapeutic areaImmunology
PhaseFDA-approved

Mechanism of action

Etanercept is a recombinant TNF receptor p75-IgG1 Fc fusion protein that acts as a soluble TNF receptor. It binds circulating TNF-alpha and TNF-beta with high affinity, preventing their interaction with cell-surface TNF receptors and thereby suppressing the inflammatory cascade. This TNF inhibition reduces joint inflammation, systemic inflammation, and immune-mediated tissue damage in autoimmune and inflammatory conditions.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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