This is a phase II trial that follows the completion of the phase I UCSF trial of everolimus and sorafenib for Renal Cell Carcinoma (RCC). This trial will be for patients who have not had treatment for RCC before. This trial will have 2/3 patients getting everolimus/sorafenib treatment and 1/3 getting sunitinib, an FDA approved RCC drug. All three drugs are approved for advanced RCC when used individually, the combination of everolimus and sorafenib for RCC is not approved by the FDA.
In the phase I study of the combination of everolimus and sorafenib, clinical benefit was observed in patients with no prior systemic therapy. There was no evidence of pharmacokinetic interaction and acceptable toxicity at a dosage of sorafenib of 400 mg twice daily (BID) and everolimus 5 mg daily. Based on these data and the need for more effective front-line therapy for renal cell carcinoma, the plan is to investigate this regimen in patients who have not undergone prior therapy. A sunitinib arm is being included as a concurrent reference to help provide a guideline of an activity level and toxicity that would be meaningful to move forward to a phase III study. Therefore, this study is designed as a non-comparative investigation and patients will be randomized in a 2:1 ratio to everolimus/sorafenib or to sunitinib, respectively.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
* Starting doses: everolimus 5 mg daily and sorafenib 400 mg BID - taken fasting, no food 1 hour before or 2 hours after dosing * Everolimus and sorafenib are dosed continuously (Note: everolimus and sorafenib are typically dosed in 28 day cycles, and sunitinib is typically dosed in 42 day cycles; for the purposes of this protocol to keep timing consistent, a cycle will be defined as 42 days of therapy)
Starting dose: sunitinib 50 mg daily 4 weeks on, 2 weeks off - taken fasting, no food 1 hour before or 2 hours after dosing (Note: sunitinib is typically dosed in 42 day cycles described above: 28 days treatment, 14 days off. For the purposes of this protocol, to keep timing consistent, a cycle will be defined as 42 days of therapy)
Objective response
Computerized Tomography Scans (CT) done at Screening and every 2 cycles * For Partial Response (PR) or Complete Response (CR), changes in tumor measurements must be confirmed by repeat studies no less than 4 weeks after the criteria for response are first met (RECIST 1.1 criteria) * For Stable Disease (SD), follow-up measurements must have met the SD criteria at least once after study entry at a minimum of 12 weeks after study entry
Time frame: 12-18 weeks
Safety: combination of everolimus and sorafenib
Safety/Adverse Event (AE) assessments done on Day 1, 21, 42 during Cycle 1 \& Day 28 of all subsuquent cycles; assessments include Eastern Oncology Group Conference (ECOG) Performance scale, physical/history, hematology \& chemistry labs; other safety data (e.g. Electrocardiogram \[ECG\], Multigated Acquisition Scan \[MUGA\], etc.) will be considered as appropriate
Time frame: 12-18 weeks
Progression-free Survival (PFS)
\- PFS will be measured (using RECIST 1.1 criteria) from the start of protocol therapy until the date of the first occurrence of recurrent or progressive disease or death
Time frame: 12-18 weeks
Time-to-Progression (TTP)
\- TTP will be measured from the start of protocol therapy until first date that recurrent or progressive disease is documented
Time frame: 12-18 weeks
Clinical Benefit rate
Clinical benefit (defined as objective response+stable disease) will be summarized for each treatment arm by the proportion of patients achieving this outcome with 95% confidence intervals
Time frame: 12-18 weeks
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