This phase I/II trial studies the side effects and best dose of sorafenib tosylate and bevacizumab and to see how well they work in treating patients with advanced kidney cancer. Sorafenib tosylate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as bevacizumab, can block tumor growth by targeting certain cells. Bevacizumab and sorafenib tosylate may also stop the growth of tumor cells by blocking blood flow to the tumor. Giving sorafenib tosylate together with bevacizumab may kill more tumor cells.
PRIMARY OBJECTIVES: I. To determine the tolerability and maximum tolerated dose of Sorafenib (sorafenib tosylate) when given orally in combination with Bevacizumab in patients with renal cell carcinoma (RCC). (Phase I) II. To estimate the objective response rate of advanced RCC receiving the combination therapy of Bevacizumab and Sorafenib. (Phase II) III. To estimate the progression-free survival of advanced renal cell carcinoma patients to Sorafenib (sorafenib tosylate) in combination with Bevacizumab. (Phase II) SECONDARY OBJECTIVES: I. To obtain fixed tissue in the form of paraffin blocks or unstained slides for evaluation of the following: von Hippel-Lindau tumor suppressor, E3 ubiquitin protein ligase (VHL) mutation status and phosphatase and tensin homolog (PTEN) mutation and/or expression status; VHL downstream proteins; Apoptosis and proliferation status; Microvascular density, and if able to process; kinase status- phosphorylation, inactive for mitogen-activated protein (MAP) kinase, v-akt murine thymoma viral oncogene homolog 1 (Akt) and kinase insert domain receptor (KDR) if feasible. II. In situations where fresh tumor may be obtained prior to and/or following therapy (4 weeks) 1. Assess tumor baseline and changes in signal transduction - Raf-1 proto-oncogene, serine/threonine kinase (Raf), mitogen-activated protein kinase kinase (MEK), mitogen-activated protein kinase 1 (Erk), Erk phosphorylation, Akt phosphorylation status and Raf subcellular localization. 2. fms-related tyrosine kinase 1 (VEGFR1) (flk1) and kinase insert domain receptor (VEGFR2) (flt1/KDR) status and tissue vascular endothelial growth factor (VEGF). 3. Tumor cell apoptosis - marker of proliferation Ki-67 (Ki-67), transferase dUTP nick end labeling (TUNEL) staining, and expression levels of BH3 interacting domain death agonist (BH3) domain containing proteins. 4. Tumor blood vessel characteristics - microvessel density, fraction of immature tumor blood vessels, endothelial cell apoptosis. 5. Presence of VHL downstream proteins III. To relate changes in tumor perfusion and vascular permeability on serial arterial spin labeled (ASL) and dynamic contrast-enhanced (DCE)-magnetic resonance imaging (MRI) to clinical outcome and anti-tumor effects. IV. Evaluate the pharmacokinetics of Sorafenib (alone and in combination) and bevacizumab in patients enrolled on the maximum tolerated dose (MTD) dose level of Sorafenib and bevacizumab representing the recommended phase II dose (RPTD) schedule (200mg once daily \[QD\] Sorafenib and 5 mg/kg intravenously \[IV\] Q 2 weeks of bevacizumab). V. To determine the steady-state trough plasma concentration of Sorafenib and trough concentration of Bevacizumab and relate to toxicity and correlative endpoints. VI. Serial analysis of circulating angiogenic cytokines (i.e. VEGF, angiopoeitin 2, basic fibroblast growth factor \[bFGF\], interleukin \[IL\]-8 etc) and association of findings with response, response duration and prediction of relapse. OUTLINE: This phase I dose-escalation study followed by a phase II study. PHASE I: Patients receive sorafenib tosylate orally (PO) twice daily on days 1-28 and bevacizumab intravenously (IV) over 30-90 minutes on days 1 and 15. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. Cohorts of 3-6 patients receive escalating doses of sorafenib tosylate and bevacizumab until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 6 patients experience dose-limiting toxicity. An additional 6 patients are treated at the MTD. PHASE II: Patients receive sorafenib tosylate PO once daily on days 1-28 and bevacizumab IV over 90 minutes on days 1 and 15 at the MTD in the absence of disease progression or unacceptable toxicity\*. \[Note: \*Patients may remain on protocol if only 1 of the drugs is stopped.\] After completion of study treatment, patients are followed up every 3 months for 2 years and then every 6 months thereafter.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
73
Dana-Farber Cancer Institute
Boston, Massachusetts, United States
Dana-Farber Harvard Cancer Center
Boston, Massachusetts, United States
Beth Israel Deaconess Medical Center
Boston, Massachusetts, United States
University of Pennsylvania/Abramson Cancer Center
Philadelphia, Pennsylvania, United States
Vanderbilt-Ingram Cancer Center
Nashville, Tennessee, United States
Maximum Tolerated Dose (MTD) of BAY 43-9006 (Sorafenib)in Combination With Bevacizumab (Phase I)
The highest dose in milligrams (mg) of BAY 43-9006 (Sorafenib) in combination with Bevacizumab while maintaining tolerability. Cohorts of 3-6 patients received escalating doses of sorafenib and bevacizumab until the maximum tolerated dose (MTD) was achieved. The MTD is defined as the dose preceding that at which 2 or more of 6 patients experience dose-limiting toxicity during the initial cycle of therapy. DLTs include absolute neutrophil count (ANC) \< 500/mm3 for \> 7 days, ANC \< 1000/mm3 with fever \> 101 degrees Fahrenheit, platelet count \< 50,000 mm3, and non-hematologic toxicity Common Toxicity Criteria (CTC) \>= Grade 3.
Time frame: at 28 days
Maximum Tolerated Dose of Bevacizumab in Combination With BAY 43-9006 (Sorafenib)(Phase I)
The highest dose in milligrams (mg) of Bevacizumab in combination with BAY 43-9006 (Sorafenib) while maintaining tolerability. Cohorts of 3-6 patients received escalating doses of sorafenib and bevacizumab until the maximum tolerated dose (MTD) was achieved. The MTD is defined as the dose preceding that at which 2 or more of 6 patients experience dose-limiting toxicity during the initial cycle of therapy. DLTs include absolute neutrophil count (ANC) \< 500/mm3 for \> 7 days, ANC \< 1000/mm3 with fever \> 101 degrees Fahrenheit, platelet count \< 50,000 mm3, and non-hematologic toxicity Common Toxicity Criteria (CTC) \>= Grade 3.
Time frame: at 28 days
Objective Response
Objective response as determined by RECIST v. 1.0 (measurable lesions: complete response (CR) disappearance of target lesions, partial response (PR) \> 30% decrease in the sum of the longest diameter (LD) of target lesions, progressive disease (PD) \> 20% increase in the sum of the LD of target lesions or appearance of new lesions, stable disease (SD) neither sufficient decrease nor increase of the sum of smallest sum of the LD of target lesions)or last date known alive
Time frame: Every 8 weeks to date of progression
Overall Survival
Months from date on-study to expired or last date known alive
Time frame: on-study to date of expired or last date known alive
Progression-free Survival
Duration of months of progression-free survival (PFS). Determined by months to progressive disease or to last date known alive without progressive disease.
Time frame: on-study to date of progression or last date known alive without progression
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