The PROBE Trial: Treatment Study for Metastatic Kidney Cancer

Clinical Trial Title

S1931: Phase III Trial of Immunotherapy-Based Combination Therapy with or Without Cytoreductive Nephrectomy for Metastatic Renal Cell Carcinoma (PROBE Trial)

National Clinical Trial Number:


Clinical Trial Protocol Description:

This phase III trial compares the effect of adding surgery to a standard of care immunotherapy-based drug combination versus a standard of care immunotherapy-based drug combination alone in treating patients with kidney cancer that has spread to other places in the body (metastatic). Immunotherapy with monoclonal antibodies, such as nivolumab, ipilimumab, pembrolizumab, and avelumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Axitinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Surgery to remove the kidney, called a nephrectomy, is also considered standard of care; however, doctors who treat kidney cancer do not agree on its benefits. It is not yet known if the addition of surgery to an immunotherapy-based drug combination works better than an immunotherapy-based drug combination alone in treating patients with kidney cancer.

Clinical Trial Eligibility Criteria:

In order to participate you must meet the following criteria:

  • Have a histologically proven diagnosis of clear cell or non-clear cell renal cell carcinoma.
  • Have scans performed showing clinical evidence of measurable or non-measurable metastatic disease.
  • Have no active brain metastases.
  • Are at least 18 years of age.

This is a partial list of eligibility requirements. To inquire about your eligibility, please call the contact number provided. If you wish to inquire via email, please include the title of the study in your message.

Study Details

Clinical Trial Investigator

Alan Tan, MD

Contact Information

Rush Cancer Center Clinical Trials Office