A Study of Evorpacept (ALX148) With Enfortumab Vedotin for Subjects With Urothelial Carcinoma (ASPEN-07)

Inclusion Criteria

• Histologically confirmed, unresectable locally advanced or metastatic urothelial carcinoma.
• Must have received prior treatment with an immune checkpoint inhibitor (CPI).
• Subjects must have received prior treatment with platinum-containing chemotherapy.
• Subjects must have had progression or recurrence of urothelial cancer.
• Subjects must have measurable disease according to RECIST (Version 1.1).
• Adequate bone marrow function.
• Adequate renal function.
• Adequate liver function.
• Adequate Eastern Cooperative Oncology Group (ECOG) performance status.

Exclusion Criteria

• Preexisting sensory or motor neuropathy Grade ≥2.
• Presence of symptomatic or uncontrolled central nervous system (CNS) metastases.
• Prior treatment with enfortumab vedotin or other monomethylauristatin (MMAE)-based antibody-drug conjugate (ADCs)
• Prior treatment with any anti-CD47 or anti-signal regulatory protein-α (SIRPα) agent.
• Known active keratitis or corneal ulcerations. Subjects with superficial punctate keratitis are allowed if the disorder is being adequately treated.
• History of uncontrolled diabetes mellitus within 3 months of the first dose of study drug.