TORL-1-23, a CLDN6-targeted antibody-drug conjugate, demonstrates encouraging responses in heavily pretreated patients with advanced solid tumors, including platinum-resistant ovarian cancer.
The overall response rate reached 42% at a 2.4 mg/kg dose, with durable and deep responses observed, particularly in ovarian cancer patients treated at 2.4 mg/kg and 3.0 mg/kg.
The antibody-drug conjugate was well-tolerated, with manageable safety profiles, and the risk of neutropenia was mitigated by prophylactic pegfilgrastim administration.
A registrational phase 2 study is planned for CLDN6-positive platinum-resistant ovarian cancer, with further evaluation in other CLDN6-positive cancers, including NSCLC.