A Study of Enfortumab Vedotin Alone or With Other Therapies for Treatment of Urothelial Cancer

Stopped early · Phase 1/Phase 2

Conditions studied: Carcinoma, Transitional Cell, Urinary Bladder Neoplasms, Urologic Neoplasms, Renal Pelvis Neoplasms, Urothelial Cancer, Ureteral Neoplasms, Urethral Neoplasms

In brief

This study will test an experimental drug (enfortumab vedotin) alone and with different combinations of anticancer therapies. Pembrolizumab is an immune checkpoint inhibitor (CPI) that is used to treat patients with cancer of the urinary system (urothelial cancer). This type of cancer includes cancer of the bladder, renal pelvis, ureter or urethra. Some parts of the study will look at locally advanced or metastatic urothelial cancer (la/mUC), which means the cancer has spread to nearby tissues or to other areas of the body. Other parts of the study will look at muscle-invasive bladder cancer (MIBC), which is cancer at an earlier stage that has spread into the muscle wall of the bladder. This study will look at the side effects of enfortumab vedotin alone and with other anticancer therapies. A side effect is a response to a drug that is not part of the treatment effect. This study will also test if the cancer shrinks with the different treatment combinations.

Key facts

Study ID

NCT03288545

Run by

Astellas Pharma Global Development, Inc.

People needed

348

Starts

2017-10-11

Expected to finish

2026-02-20

Last updated by the study team

2026-03-24

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Locally advanced or metastatic urothelial cancer (la/mUC) - Cohorts A, B, D, E, F, G and K.
• Histologically documented la/mUC, including squamous differentiation or mixed cell types.
• An Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0, 1 or 2: Participants with ECOG performance status of 2 must meet the following additional criteria: hemoglobin ≥10 g/dL, GFR ≥50 mL/min, may not have NYHA Class III heart failure.
• Eligible for pembrolizumab (Dose-escalation cohorts, Cohorts A, B, G and K Combination Arm).
• Dose-escalation cohorts: Ineligible for first-line cisplatin-based chemotherapy and no prior treatment for la/mUC, or have disease progression following at least 1 platinum-containing treatment.
• Cohort A: Ineligible for cisplatin-based chemotherapy and no prior treatment for la/mUC. No prior adjuvant/neoadjuvant platinum-based therapy in at least 12 months.
• Cohort B: Must have disease progression during/following treatment with at least 1 platinum-containing regimen for la/mUC or disease recurrence.
• Cohort D: Eligible for cisplatin-based chemotherapy and no prior treatment for la/mUC. No prior adjuvant/neoadjuvant platinum-based therapy in at least 12 months.
• Cohort E: Ineligible for cisplatin-based chemotherapy, eligible for carboplatin, and no prior treatment for la/mUC. No prior adjuvant/neoadjuvant platinum-based therapy in at least 12 months.
• Cohort F: Ineligible for platinum-based chemotherapy, or disease progression during/following at least 1 prior treatment for la/mUC. Eligible for gemcitabine.
• Cohort G: Eligible for platinum-based chemotherapy (either cisplatin or carboplatin) and no prior treatment for la/mUC. No prior adjuvant/neoadjuvant platinum-based therapy in at least 12 months.
• Cohort K: Ineligible for cisplatin-based chemotherapy due to at least 1 of the following: Glomerular filtration rate (GFR) <60 mL/min and ≥30 mL/min, ECOG performance status of 2, NCI CTCAE Version 4.03 Grade ≥2 hearing loss, New York Heart Association (NYHA) Class III heart failure. No prior systemic treatment for locally advanced or metastatic disease. No adjuvant/neoadjuvant platinum-based therapy within 12 months prior to randomization.
• Muscle Invasive Bladder Cancer (MIBC)- Cohorts H, J and L.
• Histologically confirmed MIBC with predominant >50% urothelial histology: Cohorts H and J: Clinical stage cT2-T4aN0M0; Cohort L: Clinical stage cT2-T4aN0M0 or cT1-T4aN1M0: Participants with pT1 disease are eligible only if they have N1 disease on imaging. Mixed cell types are eligible if urothelial cancer is predominant (>50%); Participants with plasmacytoid and/or neuroendocrine tumors are ineligible regardless of component percentage. Urothelial tumors not originating in the bladder (eg, upper tract tumors, urethral tumors) are ineligible.
• Must be cisplatin-ineligible.
• Cohort-specific eligibility: Cohort J, H, and L: No prior systemic treatment, chemoradiation, or radiation therapy for MIBC. May have received prior intravesical Bacillus Calmette-Guerin (BCG) or intravesical chemotherapy for non-MIBC; Cohort J: Eligible for pembrolizumab.
• ECOG performance status of 0, 1, or 2.
• Anticipated life expectancy of ≥3 months.
• Tumor samples with an associated pathology report from the diagnostic transurethral resection of a bladder tumor done 90 days prior to the first dose of study treatment must be available prior to enrollment and determined to be sufficient for pathology review and biomarker analysis.
• Participants must be deemed eligible for RC+PLND.

You may not qualify if…

• la/mUC - Cohorts A, B, D, E, F, G, and K
• Received any prior treatment with a PD-1 inhibitor, PD-L1 inhibitor, or PD-L2 inhibitor, except Cohort F.
• Received any prior treatment with stimulatory or co-inhibitory T-cell receptor agents, such as CD137 agonists, OX-40 agonists, or cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) inhibitors (except Cohort F).
• Ongoing sensory or motor neuropathy Grade 2 or higher.
• Active central nervous system (CNS) metastases.
• Ongoing clinically significant toxicity (Grade 2 or greater) associated with prior treatment (including radiotherapy or surgery).
• Conditions requiring high doses of steroids or other immunosuppressive medications.
• Prior treatment with enfortumab vedotin or other monomethyl auristatin E (MMAE)-based antibody-drug conjugates (ADCs).
• Uncontrolled diabetes mellitus.
• MIBC - Cohorts H, J, and L
• Received prior systemic treatment, chemoradiation, and/or radiation therapy of muscle invasive bladder cancer.
• Received any prior treatment with a CPI.
• Received any prior treatment with stimulatory or co-inhibitory T-cell receptor agents, such as CD137 agonists, CTLA-4 inhibitors, or OX-40 agonists.
• For participants in Cohort H, evidence of nodal disease on imaging. For participants in Cohort L, ≥N2 nodal disease on imaging.
• Participant has undergone partial cystectomy of the bladder to remove any NMIBC or MIBC.
• Ongoing sensory or motor neuropathy Grade 2 or higher.
• Conditions requiring high doses of steroids or other immunosuppressive medications.
• Prior treatment with enfortumab vedotin or other MMAE-based ADCs for urothelial cancer.
• Participants with a history of another invasive malignancy within 3 years before first dose of study drug.

Where it is running

• Banner MD Anderson Cancer Center — Gilbert, Arizona, United States
• Mayo Clinic Arizona — Phoenix, Arizona, United States
• Arizona Oncology Associates, PC - HOPE — Tucson, Arizona, United States
• Highlands Oncology Group — Fayetteville, Arkansas, United States
• Tower Hematology Oncology Medical Group — Beverly Hills, California, United States
• UC San Diego / Moores Cancer Center — La Jolla, California, United States
• University of California Irvine - Newport — Orange, California, United States
• University of California, Davis Comprehensive Cancer Center — Sacramento, California, United States
• University of California at San Francisco — San Francisco, California, United States
• Saint Joseph Heritage Medical Group — Santa Rosa, California, United States
• Stanford Cancer Center / Blood & Marrow Transplant Program — Stanford, California, United States
• Kaiser Permanente Southern California — Woodland Hills, California, United States
• Rocky Mountain Cancer Centers - Aurora — Aurora, Colorado, United States
• University of Colorado Hospital / University of Colorado — Aurora, Colorado, United States
• Yale Cancer Center — New Haven, Connecticut, United States
• Eastern CT Hematology and Oncology Associates — Norwich, Connecticut, United States
• Georgetown University Medical Center — Washington D.C., District of Columbia, United States
• Boca Raton Regional Hospital / Lynn Cancer Institute — Boca Raton, Florida, United States
• Holy Cross Hospital - Michael and Dianne Bienes Comprehensive Cancer Center — Fort Lauderdale, Florida, United States
• Mayo Clinic Florida — Jacksonville, Florida, United States
• University of Miami — Miami, Florida, United States
• Piedmont Cancer Institute — Atlanta, Georgia, United States
• Winship Cancer Institute / Emory University School of Medicine — Atlanta, Georgia, United States
• University of Chicago Medical Center — Chicago, Illinois, United States
• Alaska Urological Institute — Anchorage, Alaska, United States

Full record on ClinicalTrials.gov

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