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Drug reference

fam-trastuzumab deruxtecan

antibody-drug conjugate (ADC), HER2-targeted, topoisomerase I inhibitor · anticancer

antibody-drug conjugate (ADC), HER2-targeted, topoisomerase I inhibitoranticancer
CDSCO approved
EXCRETION
not curated
INTERACTIONS
none in our sources
PREGNANCY
not curated

Mechanism

Fam-trastuzumab deruxtecan is an HER2-targeted antibody conjugated to a camptothecin derivative (topoisomerase I inhibitor).

Indications

locally advanced or metastatic HER2-positive breast cancerHER2-positive gastric cancer

Side effects

Serious
  • interstitial lung disease
  • pneumonitis (including fatal cases)
  • cardiotoxicity

Related guidelines

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Sources: Goodman & Gilman 14e·Verified: 2026-05-10 · House clinical team