Phase I Study of Tolododekin Alfa (ANK-101) in Advanced Solid Tumors

This Phase 1 first-in-human (FIH) study will: 1) evaluate the safety, tolerability, pharmacokinetic and pharmacodynamic effects and preliminary clinical activity of tolododekin alfa (ANK-101) administered as an intratumoral (IT) injection in participants with superficial or visceral lesions; 2) determine the recommended dose for expansion (RDE) of ANK-101; and 3) to determine the safety and tolerability of ANK-101 in combination with cemiplimab.

For parts 1 and 2, the study design consists of six sequential dose-escalation cohorts. Part 1 will enroll participants with advanced solid tumors, with cutaneous, subcutaneous or nodal disease (accessible by clinical palpation or ultrasound guidance). Part 2 will start once the DLT period of dose level 1 in Part 1 is completed and dose level 2 is opened. Part 2 will enroll participants with visceral disease (accessible by interventional radiology or endoscopic techniques). Participants in Part 2 may also have superficial lesions that can be injected if in the Investigator's opinion this is clinically indicated.

Ten participants with non-small cell lung cancer (NSCLC) will be dosed in a Part 2 dose expansion cohort at the RDE.

Part 3 will start once dose escalation for Part 1 is complete and the RDE is identified. Part 3 will consist of ANK-101 in combination with cemiplimab in 15 participants with high-risk locally advanced or metastatic CSCC that have superficial lesions for injection. Participants will be treated with ANK-101 given as IT injections once every three weeks at the RDE in combination with cemiplimab.

Enrollment in Part 3 will include a safety run-in of 5 participants. Following the first dose of the 5th participant, enrollment will pause for 21 days before opening enrollment to the remaining 10 participants or stopping further enrollment.