Testing of Bevacizumab, Erlotinib, and Atezolizumab in Combination for Advanced-Stage Kidney Cancer

PRIMARY OBJECTIVE:

I. To assess the complete response (CR) rate according to standard Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) in patients with 1) advanced renal cell cancer (RCC) associated with hereditary leiomyomatosis and renal cell cancer (HLRCC) and 2) advanced sporadic/non-HLRCC papillary renal cell cancer treated with a combination of bevacizumab, erlotinib, and atezolizumab.

SECONDARY OBJECTIVES:

I. To determine the safety and tolerability of the combination of bevacizumab, erlotinib, and atezolizumab.

II. To determine the objective response rate (ORR) as complete response (CR) + partial response (PR).

III. To determine disease control rate (DCR) - confirmed response, or stable disease (SD) lasting for at least 6 months.

IV. To assess progression-free survival time (PFS) according to RECIST 1.1. V. To assess overall survival (OS). VI. To assess the duration of response. VII. To assess response to treatment using immune-modified Response Evaluation Criteria in Solid Tumors (iRECIST).

EXPLORATORY OBJECTIVES:

I. To evaluate immunologic modulation associated with the administered treatment regimen, including:

Ia. Peripheral immune subset analysis before and on treatment; Ib. Evaluation of relevant soluble factors before and on treatment. (e.g., cytokine profiles); Ic. Tumor tissue immune infiltration cells before and after treatment (immune microenvironment, CD8/CD4/CD3 cells, T-cell receptor clonality); Id. Evaluation of tissue PDL1/PD1 expression and their correlation with outcome.

II. To assess specific genomic alterations (including fumarate hydratase \[FH\], NRF2 pathway) and determine if there is a correlation with clinical outcomes.

OUTLINE:

Patients receive bevacizumab intravenously (IV) over 30-90 minutes and atezolizumab IV over 30-60 minutes on day 1 of each cycle. Patients also receive erlotinib orally (PO) once daily (QD) on days 1-21 of each cycle. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients also undergo computed tomography (CT) with or without contrast and magnetic resonance imaging (MRI) throughout the trial. Patients undergo collection of blood throughout the trial, and may undergo a biopsy during screening, as well as a brain MRI/CT scan with contrast, bone scan, and/or F-18 sodium fluoride positron emission tomography (PET) scan as clinically indicated.

After completion of study treatment, patients are followed up every 6 months.