Overview
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 Part 2 dose.
Description
This study consists for 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 urothelial cancer. The aim of Part 1 is to determine the maximum tolerated dose (MTD) or maximum administered dose (MAD) and the recommended Part 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 on [225Ac]Ac-AKY-1189 at the RP2D in 3 different cohorts of patients.
Eligibility
Inclusion Criteria:
- Histologic or cytologic confirmation of locally advance or metastatic disease
- Radiologic confirmation on CT of at least one measurable tumor lesion per RECIST v1.1
- ECOG Performance Status of 0 or 1
- Adequate end-organ function
- Ability to give informed consent and comply with study requirements
- Patients with CNS metastases are eligible if they have received therapy and are neurologically stable, asymptomatic and not receiving corticosteroids
- Documented disease progression on prior line of therapy for metastatic disease
Exclusion Criteria:
- Prior treatment with a therapeutic radiopharmaceutial
- Received an investigational agent within the previous 28days
- Prior treatment with a cytotoxic chemotherapy, targeted therapy, biologic agent, immunotherapy or external-beam radiotherapy in the 3 weeks prior to study treatment
- Concurrent serious medical condition that would impair study participation or impact the assessment of treatment related toxicity