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ZD1839

University of Chicago · Phase 3 active Small molecule

ZD1839 is an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor that blocks EGFR signaling to inhibit cancer cell proliferation.

ZD1839 is an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor that blocks EGFR signaling to inhibit cancer cell proliferation. Used for Non-small cell lung cancer (NSCLC), Head and neck cancer.

At a glance

Generic nameZD1839
Also known asgefitinib, Iressa ®, IRESSA, Iressa, Gefitinib, IRESSA®
SponsorUniversity of Chicago
Drug classEGFR tyrosine kinase inhibitor
TargetEGFR (Epidermal Growth Factor Receptor)
ModalitySmall molecule
Therapeutic areaOncology
PhasePhase 3

Mechanism of action

ZD1839 selectively inhibits the intracellular tyrosine kinase domain of EGFR, preventing autophosphorylation and downstream signaling through the MAPK and PI3K/AKT pathways. This leads to cell cycle arrest and apoptosis in EGFR-dependent tumors. It is an orally bioavailable small molecule designed to target EGFR-driven cancers.

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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