A Study of DS-9606a in Patients With Advanced Solid Tumors

This is a first-in-human, phase 1, dose escalation study of the anti-CLDN6 ADC, DS-9606a, given as a single agent to patients with solid tumors. The primary objectives are to investigate the safety and tolerability of DS-9606a and to determine the maximum tolerated dose (MTD) and recommended doses for expansion (RDE/RDEs) in advanced solid tumors. The secondary objectives of the study are to assess the pharmacokinetic properties and immunogenicity of DS-9606a, investigate the objective response rate (ORR), duration of response (DOR), disease control rate (DCR), time to response (TTR) and progression free survival (PFS) of DS-9606a, according to RECIST v1.1.