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Clinical Trial Summary

Background: - Cabozantinib is a drug that slows the growth of blood vessels that feed tumors. It is approved for medullary thyroid cancer. However, studies have shown that prostate and ovarian tumors respond to it. Researchers want see if cabozantinib can be a safe and effective treatment for urothelial cancer. Objectives: - To test the safety and effectiveness of cabozantinib for advanced urothelial cancer. Eligibility: - Individuals at least 18 years of age who have advanced urothelial cancer that has not responded to standard treatments. Design: - Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected. Tumor tissue samples will also be collected. Imaging studies will also be performed. - Participants will take cabozantinib by mouth once per day on each day of a 28-day cycle. - Treatment will be monitored with frequent blood tests and imaging studies. - Participants will continue to take the study drug for as long as their cancer does not worsen and side effects are not too severe.


Clinical Trial Description

Background: - In the United States, urothelial carcinoma (UC) of the bladder is the fourth most common malignancy in men and the ninth most common in women with an estimated 69,250 new cases and 14,990 deaths in the year 2011 - There is no Food and Drug Administration (FDA)-approved second line drug for patients with metastatic Urothelial Cancer (UC) - Multiple lines of evidence support targeting angiogenesis in UC - In human bladder cancer, overexpression of tyrosine-protein kinase (c-Met)/Axl/platelet derived growth factor receptor- (PDGFR)-alpha or c-Met alone showed significant correlation with poor survival - Cabozantinib is a new chemical entity that inhibits multiple receptor tyrosine kinases with growth-promoting and angiogenic properties. - The primary targets of cabozantinib are mesenchymal epithelial transition factor (MET), vascular endothelial factor receptor 2 (VEGFR2), and rearranged during transfection (RET) Objectives: - To determine the response rate of cabozantinib in patients with progressive urothelial cancer who have received prior cytotoxic chemotherapy Eligibility: - Patients in cohort 1 must have a histologically confirmed diagnosis of metastatic, progressive urothelial carcinoma of the bladder, urethra, ureter, or renal pelvis. - Patients in cohort 2 must have a histologically confirmed diagnosis of bone only metastatic, urothelial carcinoma of the bladder, urethra, ureter, or renal pelvis. - Patients in cohort 3 must have a histologically confirmed diagnosis of non-transitional cell carcinoma cancer (including but not limited to squamous cell, neuroendocrine, adenocarcinoma including urachal and sarcomatoid) of the bladder, urethra, ureter, or renal pelvis. - Patients must have been previously treated, as defined by treatment with at least one prior cytotoxic chemotherapy regimen or agent. Patients may have received any number of prior cytotoxic agents. - 18 years of age or older. Design: - A maximum of 71subjects will be enrolled in this open label, non-randomized, phase II trial of 60 mg each day of cabozantinib. Up to 50 patients will be accrued to cohort 1 (metastatic, progressive urothelial cancer. The remainder will be enrolled on exploratory cohorts 2 & 3, bone only metastatic urothelial disease and non transitional cell carcinoma (TCC) bladder cancer respectively, during the time the study is accruing patients for cohort 1. Note: Patients who tolerate cabozantinib at 60 mg daily during the first 2 cycles (first restaging time period) without (Bullet) grade 2 toxicity may undergo dose escalation to 80 mg daily at the discretion of the Principal Investigator. - A Simon 2 stage design with alpha=0.05 and beta = 0.10 as acceptable error probabilities. Initially 21 subjects will be enrolled and followed for progression. If 2 or more of cohort 1 subjects experiences a response, enrollment will continue until a total of 41 evaluable subjects with progressive urothelial cancer have been entered. 2-3 patients per month may enroll on this trial; thus, 2 to 3 years is anticipated as the accrual period. - Each patient will undergo response evaluation assessments with chest abdomen pelvis computed tomography (CAP CT) (or magnetic resonance imaging (MRI)) with or without 18F-Sodium Fluoride (Na18F) positron emission tomography (PET CT) every 8 weeks while on active protocol therapy starting at baseline. Patients will undergo investigational Fludeoxyglucose, (FDG) PET/CT and PET/MRI (optional) at baseline, week 4 and week 8. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT01688999
Study type Interventional
Source National Institutes of Health Clinical Center (CC)
Contact
Status Completed
Phase Phase 2
Start date September 11, 2012
Completion date September 14, 2020

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