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Olintatug Tesirine · ADCT-901

Antibody-drug conjugate · Cytotoxic, directed at KAAG1 · developed by ADC Therapeutics

Phase 1 Most advanced trial (none active)
ADCT Developer
1 Registered trials

What is Olintatug Tesirine?

Olintatug tesirine is an antibody-drug conjugate composed of a humanized anti-KAAG1 antibody conjugated to SG3199, a pyrrolobenzodiazepine dimer. The antibody binds KAAG1 on cancer cells; upon internalization and cathepsin cleavage, the cytotoxic payload forms DNA interstrand cross-links, killing KAAG1-expressing tumor cells. It is studied in advanced solid tumors.

Summary written with AI from the sources listed at the end of this page.

At a glance

Also known as
ADCT-901
Drug type
Antibody-drug conjugate
Targets
KAAG1
Mechanism
Cytotoxic, directed at KAAG1
Pathways
DNA interstrand cross-linking, cell cycle arrest
Therapy area
Oncology
Developer
ADC Therapeutics S.A. (ADCT)
FDA status
Investigational, not approved in the US. Most advanced trial: Phase 1
UNII
AJN3EUF4Z9

🧪 Clinical trials

TrialPhaseConditionStatusSponsor
NCT04972981 Phase 1 Advanced Solid Tumors Completed ADCT

Trials of the companies BioRadar tracks, from ClinicalTrials.gov, most advanced phase first.

Conditions studied

Advanced Solid Tumors

More from ADC Therapeutics

Sources

Updated Oct 3, 2026. Something wrong or missing? Report it on the ADCT page.

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Data: FDA (Drugs@FDA, Purple Book, DailyMed), NIH (NCI Thesaurus, GSRS, RxNorm), ClinicalTrials.gov • Informational purposes only, not medical or investment advice. • All drugs A–Z

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