Enfortumab Vedotin plus Pembrolizumab for the Treatment of Locally Advanced or Metastatic Bladder Cancer of Variant Histology

Active:	Yes
Cancer Type:	Bladder Cancer	NCT ID:	NCT05756569
Trial Phases:	Phase II	Protocol IDs:	WINSHIP5742-22 (primary) NCI-2023-00104 STUDY00005143
Eligibility:	18 Years and older, Male and Female	Study Type:	Treatment
Study Sponsor:	Emory University Hospital/Winship Cancer Institute
NCI Full Details:	http://clinicaltrials.gov/show/NCT05756569

Summary

This phase II trial tests how well enfortumab vedotin (EV) and pembrolizumab works in treating patients with bladder cancer of variant histology (a group of less common types of bladder cancer) that have spread to nearby tissue or lymph nodes (locally advanced) or that has spread from where it first started (primary site) to other places in the body (metastatic). Enfortumab vedotin is a monoclonal antibody, enfortumab, linked to an anticancer drug called vedotin. It works by helping the immune system to slow or stop the growth of cancer cells. Enfortumab attaches to a protein called nectin-4 on cancer cells in a targeted way and delivers vedotin to kill them. It is a type of antibody-drug conjugate. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving enfortumab vedotin and pembrolizumab may kill more tumor cells in patients with locally advanced or metastatic bladder cancer of variant histology.

Objectives

PRIMARY OBJECTIVE:
I. To evaluate the anti-tumor activity of the combination of enfortumab vedotin (EV) plus pembrolizumab by assessing the overall response rate (ORR) as measured by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1.

SECONDARY OBJECTIVES:
I. To evaluate the efficacy of the combination as measured by progression free survival, overall survival, and duration of response.
II. To evaluate the safety as measured by incidence of adverse events assessed up to 2 years.

EXPLORATORY OBJECTIVE:
I. To assess tissue-based assays in archival tissue and correlative changes in peripheral T-cell subsets, myeloid derived suppressor cells (MDSC), blood inflammatory markers and cytokines.

OUTLINE:
Patients receive enfortumab vedotin intravenously (IV) and pembrolizumab IV on study. Patients also undergo computed tomography (CT) scan or magnetic resonance imaging (MRI), and collection of blood throughout the trial.

Treatment Sites in Georgia

Winship Cancer Institute of Emory University
1365 Clifton Road NE
Building C
Atlanta, GA 30322
404-778-5180
winshipcancer.emory.edu

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