On July 27, 2022 ADC Therapeutics SA (NYSE: ADCT) reported the first patient has been dosed in the Phase 1b clinical trial evaluating ADCT-601 (mipasetamab uzoptirine) targeting AXL as a single agent and in combination with gemcitabine in patients with selected advanced solid tumors (Press release, ADC Therapeutics, JUL 27, 2022, View Source [SID1234616981]).

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The Phase 1b open-label, dose-escalation and dose-expansion clinical trial evaluates the safety and tolerability of ADCT-601 as a single agent and in combination with gemcitabine in patients with selected advanced solid tumors. The first arm of the trial will enroll approximately 18 patients with sarcoma, a tumor resistant to current available cancer treatments in which AXL is overexpressed. For more information about the Phase 1b trial, please visit www.clinicaltrials.gov (identifier NCT05389462).

About ADCT-601

ADCT-601 is composed of a humanized monoclonal antibody that binds to human AXL (licensed from BerGenBio), conjugated using GlycoConnect technology (licensed from Synaffix BV) to a linker with a pyrrolobenzodiazepine (PBD)-dimer toxin. Once bound to an AXL-expressing cell, ADCT-601 is internalized into the cell, where enzymes release the PBD-based warhead. In preclinical human cancer models via AXL-mediated delivery of a PBD dimer warhead, ADCT-601 demonstrated potent and durable antitumor activity.