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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 1INTERVENTIONAL

Cabozantinib in Combination With Enfortumab Vedotin for Locally Advanced or Metastatic Urothelial Cancer

A Phase I/Ib Open Label, Single-Arm Study of Cabozantinib in Combination With Enfortumab Vedotin (EV) in the Treatment of Locally Advanced or Metastatic Urothelial Cancer

Cabozantinib in Combination With Enfortumab Vedotin for Locally Advanced or Metastatic Urothelial Cancer (NCT04878029) is a Phase 1 interventional studying Infiltrating Bladder Urothelial Carcinoma With Squamous Differentiation and Locally Advanced Urothelial Carcinoma, sponsored by Emory University. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

This phase I/Ib trial seeks to find out the best dose, possible benefits and/or side effects of cabozantinib in combination with enfortumab vedotin in treating urothelial cancer that has spread to nearby tissues and lymph nodes (locally advanced) or other parts of the body (metastatic). Cabozantinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Enfortumab vedotin is a monoclonal antibody, enfortumab, linked to a toxic agent called vedotin. Enfortumab attaches to nectin-4 tumor cells in a targeted way and delivers vedotin to kill them. Cabozantinib in combination with enfortumab vedotin may be safe and effective in treating locally advanced or metastatic urothelial cancer.

What Stage of Research Is This?

Phase 1 trials test a new treatment for the first time in humans, focusing on safety, dosing, and how the body processes the drug. For Infiltrating Bladder Urothelial Carcinoma With Squamous Differentiation, a Phase 1 study typically enrolls a small number of participants — often healthy volunteers or patients who have exhausted standard treatment options. Phase 1 results determine whether a treatment moves into larger Phase 2 efficacy studies.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

With a target enrollment of 32 participants, this is a small study — typical of early-phase research, rare-disease trials, or pilot studies designed to generate preliminary signal before a larger study is launched.

Who May Be Eligible (Plain English)

Who May Qualify: - Histologically-documented urothelial carcinoma (squamous differentiation or mixed cell types allowed if urothelial carcinoma is present) - Metastatic disease or unresectable locally-advanced disease - Must have received prior treatment with a checkpoint inhibitor (CPI). A CPI is defined as a programmed cell death protein 1 (PD-1) or programmed death-ligand 1 (PD-L1) inhibitor alone or with any other combination - Must either have prior treatment with platinum-containing chemotherapy or be ineligible at time of enrollment - Recovery to baseline or =\< grade 1 Common Terminology Criteria for Adverse Events (CTCAE) v5.0 from toxicities related to any prior treatments, unless AE(s) are clinically nonsignificant and/or stable on supportive therapy - Tumor tissue samples must be available for submission prior to initiation of study treatment or patient must be willing to undergo repeat tumor biopsy - Must have measurable disease according to Response Evaluation Criteria in Solid Tumors (RECIST) (Version 1.1) - An Eastern Cooperative Oncology Group (ECOG) performance status score of =\< 2 - Must be \>= 18 years of age - Absolute neutrophil count (ANC) \>= 1500/uL without granulocyte colony-stimulating factor support (within 28 days before first dose of study treatment) - White blood cell count \>= 2500/uL (within 28 days before first dose of study treatment) - Platelets \>= 100,000/uL without transfusion (within 28 days before first dose of study treatment) - Hemoglobin \>= 9 g/dL (within 28 days before first dose of study treatment) - Alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP) =\< 3 x upper limit of normal (ULN). ALP =\< 5 x ULN with documented bone metastases (within 28 days before first dose of study treatment) - Total bilirubin =\< 1.5 x ULN (for subjects with Gilbert's disease =\< 3 x ULN) (within 28 days before first dose of study treatment) ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: * Histologically-documented urothelial carcinoma (squamous differentiation or mixed cell types allowed if urothelial carcinoma is present) * Metastatic disease or unresectable locally-advanced disease * Must have received prior treatment with a checkpoint inhibitor (CPI). A CPI is defined as a programmed cell death protein 1 (PD-1) or programmed death-ligand 1 (PD-L1) inhibitor alone or with any other combination * Must either have prior treatment with platinum-containing chemotherapy or be ineligible at time of enrollment * Recovery to baseline or =\< grade 1 Common Terminology Criteria for Adverse Events (CTCAE) v5.0 from toxicities related to any prior treatments, unless AE(s) are clinically nonsignificant and/or stable on supportive therapy * Tumor tissue samples must be available for submission prior to initiation of study treatment or patient must be willing to undergo repeat tumor biopsy * Must have measurable disease according to Response Evaluation Criteria in Solid Tumors (RECIST) (Version 1.1) * An Eastern Cooperative Oncology Group (ECOG) performance status score of =\< 2 * Must be \>= 18 years of age * Absolute neutrophil count (ANC) \>= 1500/uL without granulocyte colony-stimulating factor support (within 28 days before first dose of study treatment) * White blood cell count \>= 2500/uL (within 28 days before first dose of study treatment) * Platelets \>= 100,000/uL without transfusion (within 28 days before first dose of study treatment) * Hemoglobin \>= 9 g/dL (within 28 days before first dose of study treatment) * Alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP) =\< 3 x upper limit of normal (ULN). ALP =\< 5 x ULN with documented bone metastases (within 28 days before first dose of study treatment) * Total bilirubin =\< 1.5 x ULN (for subjects with Gilbert's disease =\< 3 x ULN) (within 28 days before first dose of study treatment) * Prothrombin (PT)/international normalized ratio (INR) or partial thromboplastin time (PTT) test \< 1.3 x the laboratory ULN unless participant is receiving anticoagulant therapy as long as PT or activated partial thromboplastin time (aPTT) is within therapeutic range of intended use of anticoagulants (within 28 days before first dose of study treatment) * Calculated creatinine clearance \>= 30 mL/min (\>= 0.5 mL/sec) using the Cockcroft-Gault equation (within 28 days before first dose of study treatment) * Urine protein/creatinine ratio (UPCR) =\< 1 mg/mg (=\< 113.2 mg/mmol), or 24-hour (h) urine protein =\< 1 g (within 28 days before first dose of study treatment) * Capable of understanding and complying with the protocol requirements and must have signed the informed consent document * Sexually active fertile subjects and their partners must agree to use medically accepted methods of contraception (e.g., barrier methods, including male condom, female condom, or diaphragm with spermicidal gel) during the course of the study and for 4 months after the last dose of study treatment * Female subjects of childbearing potential must not be pregnant at screening. Female subjects are considered to be of childbearing potential unless one of the following criteria are met: documented permanent sterilization (hysterectomy, bilateral salpingectomy, or bilateral oophorectomy) or documented postmenopausal status (defined as 12 months of amenorrhea in a woman \> 45 years-of-age in the absence of other biological or physiological causes. In addition, females \< 55 years-of-age must have a serum follicle stimulating (FSH) level \> 40 mIU/mL to confirm menopause). Note: Documentation may include review of medical records, medical examinations, or medical history interview by study site Exclusion Criteria: * Prior treatment with cabozantinib * Prior enrollment in an enfortumab vedotin study or prior treatment with other monomethyl auristatin E (MMAE)-based antibody-drug conjugates (ADCs) * Receipt of any type of small molecule kinase inhibitor (including investigational kinase inhibitor) within 2 weeks before first dose of study treatment * Receipt of any type of cytotoxic, biologic or other systemic anticancer therapy (including investigational) within 2 weeks before first dose of study treatment * Radiation therapy within 2 weeks before first dose of study treatment. Systemic treatment with radionuclides within 6 weeks before first dose of study treatment * Known brain metastases or cranial epidural disease unless adequately treated with radiotherapy and/or surgery (including radiosurgery) and stable for at least 4 weeks prior to first dose of study treatment after radiotherapy or at least 4 weeks prior to first dose of study treatment after major surgery (e.g., removal or biopsy of brain metastasis). Subjects must have complete wound healing from major surgery or minor surgery before first dose of study treatment. Eligible subjects must be neurologically asymptomatic and without corticosteroid treatment at the time of first dose of study treatment * Concomitant anticoagulation with coumarin agents (e.g., warfarin), direct thrombin inhibitors (e.g., dabigatran), direct factor Xa inhibitor betrixaban, or platelet inhibitors (e.g., clopidogrel). Allowed anticoagulants are the following: * Prophylactic use of low-dose aspirin for cardio-protection (per local applicable guidelines) and low-dose low molecular weight heparins (LMWH). * Therapeutic doses of LMWH or anticoagulation with direct factor Xa inhibitors rivaroxaban, edoxaban, or apixaban in subjects without known brain metastases who are on a stable dose of the anticoagulant for at least 1 week before first dose of study treatment without clinically significant hemorrhagic complications from the anticoagulation regimen or the tumor * The subject has uncontrolled, significant intercurrent or recent illness including, but not limited to, the following conditions: * Cardiovascular disorders: * Congestive heart failure New York Heart Association Class 3 or 4, unstable angina pectoris, serious cardiac arrhythmias. * Uncontrolled hypertension defined as sustained blood pressure (BP) \> 140 mm Hg systolic or \> 90 mm Hg diastolic despite optimal antihypertensive treatment. * Stroke (including transient ischemic attack \[TIA\]), myocardial infarction (MI), or other ischemic event, or thromboembolic event (e.g., deep venous thrombosis, pulmonary embolism) within 6 months before first dose of study treatment * Subjects with a diagnosis of incidental, subsegmental pulmonary embolism (PE) or deep venous thrombosis (DVT) within 6 months are allowed if stable, asymptomatic, and treated with a stable dose of permitted anticoagulation for at least 1 week before first dose of study treatment * Gastrointestinal (GI) disorders including those associated with a high risk of perforation or fistula formation: * The subject has evidence of tumor invading the GI tract, active peptic ulcer disease, inflammatory bowel disease (e.g., Crohn's disease), diverticulitis, cholecystitis, symptomatic cholangitis or appendicitis, acute pancreatitis, acute obstruction of the pancreatic duct or common bile duct, or gastric outlet obstruction. * Abdominal fistula, GI perforation, bowel obstruction, or intra-abdominal abscess within 6 months before first dose of study treatment. * Note: Complete healing of an intra-abdominal abscess must be confirmed before first dose of study treatment * Clinically significant hematuria, hematemesis, or hemoptysis of \> 0.5 teaspoon (2.5 ml) of red blood, or other history of significant bleeding (e.g., pulmonary hemorrhage) within 12 weeks before first dose of study treatment * Cavitating pulmonary lesion(s) or known endotracheal or endobronchial disease manifestation * Lesions invading or encasing any major blood vessels * Ongoing sensory or motor neuropathy grade \>= 2 * Other clinically significant disorders that would preclude safe study participation. * Serious non-healing wound/ulcer/bone fracture. * Uncompensated/symptomatic hypothyroidism. * Moderate to severe hepatic impairment (Child-Pugh B or C). * Uncontrolled diabetes mellitus defined as a hemoglobin A1C \>= 8% * Major surgery (e.g., laparoscopic nephrectomy, GI surgery, removal or biopsy of brain metastasis) within 2 weeks before first dose of study treatment. Minor surgeries within 10 days before first dose of study treatment. Subjects must have complete wound healing from major surgery or minor surgery before first dose of study treatment. Subjects with clinically relevant ongoing complications from prior surgery are not eligible * Corrected QT interval calculated by the Fridericia formula (QTcF) \> 500 ms per electrocardiogram (ECG) within 14 days before first dose of study treatment. Note: If a single ECG shows a QTcF with an absolute value \> 500 ms, two additional ECGs at intervals of approximately 3 min must be performed within 30 min after the initial ECG, and the average of these three consecutive results for QTcF will be used to determine eligibility * Pregnant or lactating females * Inability to swallow tablets * Previously identified allergy or hypersensitivity to components of the study treatment formulations * Any other active malignancy at time of first dose of study treatment or diagnosis of another malignancy within 3 years prior to first dose of study treatment that requires active treatment, except for locally curable cancers that have been apparently cured, such as basal or squamous cell skin cancer, superficial bladder cancer, or prostate, cervix, or breast

Treatments Being Tested

DRUG

Cabozantinib S-malate

Given PO

DRUG

Enfortumab Vedotin

Given IV

OTHER

Quality-of-Life Assessment

Ancillary studies

OTHER

Questionnaire Administration

Ancillary studies

Locations (1)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Emory University Hospital/Winship Cancer Institute
Atlanta, Georgia, United States

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT04878029), the sponsor (Emory University), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT04878029 clinical trial studying?

This phase I/Ib trial seeks to find out the best dose, possible benefits and/or side effects of cabozantinib in combination with enfortumab vedotin in treating urothelial cancer that has spread to nearby tissues and lymph nodes (locally advanced) or other parts of the body (metastatic). Cabozantinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Enfortumab vedotin is a monoclonal antibody, enfortumab, linked to a toxic agent called vedotin. Enfortumab attaches to nectin-4 tumor cells in a targeted way and delivers vedotin to kill them. Cabozantinib i… The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT04878029?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT04878029?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT04878029. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT04878029. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.