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