NECTINIUM-2: A Phase 1b, 2 Part, Multicenter, Single Arm, Open Label Study to Evaluate the Safety and Efficacy of a Nectin-4 Radiopharmaceutical ([225Ac]Ac-AKY-1189) in Patients With Previously Treated Locally Advanced or Metastatic Solid Tumors

Summary

This is a first-in-human Phase 1b, 2-part, multicenter open-label clinical study to evaluate safety and efficacy of a Nectin-4 radiopharmaceutical (\[225Ac\]Ac-AKY-1189) in patients with locally advanced or metastatic solid tumors and to establish the maximum tolerated dose (MTD) or maximum administered dose (MAD) and the recommended Phase 2 dose.

Detailed description

This study consists of two parts (Part 1 and 2). Part 1 is the dose escalation portion of the study, which will investigate ascending doses of \[225Ac\]Ac-AKY-1189 (up to 6 cycles) in patients with locally advanced or metastatic solid tumors. The aim of Part 1 is to determine the maximum tolerated dose (MTD) or maximum administered dose (MAD) and the recommended Phase 2 dose. Part 2 will be the dose expansion portion of the study and will enroll locally advanced or metastatic solid tumor patients who are identified as Nectin-4 positive by \[64Cu\] Cu-AKY-1189. Part 2 aims to further assess the efficacy of \[225Ac\]Ac-AKY-1189 at the RP2D in 3 different cohorts of patients.

Arms & interventions

• Drug[225Ac]Ac-AKY-1189 (therapeutic)

  \[225Ac\]Ac-AKY-1189 Injection

• Drug[64Cu]Cu-AKY-1189 (imaging)

  \[64Cu\]Cu-AKY-1189 Injection

Outcome measures

Eligibility criteria