2022 Research Round Up: Prostate, Testicular, Bladder, and Kidney Cancer

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In the Research Round Up series, members of the Cancer.Net Editorial Board discuss the most exciting and practice-changing research in their field and explain what it means for people with cancer. In today’s episode, 4 Cancer.Net Specialty Editors discuss new research in prostate, bladder, kidney, and testicular cancers presented at the 2022 Genitourinary Cancers Symposium and 2022 ASCO Annual Meeting.


This episode has been adapted from the recording of a live Cancer.Net webinar held June 15th, 2022, led by Dr. Neeraj Agarwal, Dr. Timothy Gilligan, Dr. Petros Grivas, and Dr. Tian Zhang.


Dr. Agarwal directs the Genitourinary Oncology Program at the Huntsman Cancer Institute at the University of Utah.


Dr. Gilligan is an Associate Professor and Medical Oncologist at the Cleveland Clinic Taussig (TOSS-ig) Cancer Center.


Dr. Grivas is the clinical director of the Genitourinary Cancers Program at University of Washington Medicine. He is also an associate member of the clinical research division at the Fred Hutchinson Cancer Research Center.


Dr. Zhang is an Associate Professor of Internal Medicine at UT Southwestern Medical Center and a medical oncologist at the Harold C. Simmons Comprehensive Cancer Center.


Full disclosures for Dr. Agarwal, Dr. Gilligan, Dr. Grivas, and Dr. Zhang are available at Cancer.Net.


Greg Guthrie: Good afternoon, everyone. I'm Greg Guthrie, and I'm a member of the Cancer.Net content team. I'll be your host for today's Research Round Up webinar focusing on cancers of the genitourinary tract. Cancer.Net is the patient information website of the American Society of Clinical Oncology, known as ASCO. So today, we'll be addressing research from 2 2022 scientific meetings, the ASCO Annual Meeting held in Chicago in June and the Genitourinary Cancers Symposium held in San Francisco in February. Our participants today are all Specialty Editors of the Cancer.Net Editorial Board, and they are Dr. Neeraj Agarwal of the Huntsman Cancer Institute in University of Utah, Dr. Timothy Gilligan of the Cleveland Clinic Taussig Cancer Center, Dr. Petros Grivas of the Fred Hutchinson Cancer Research Center and University of Washington, and Dr. Tian Zhang of the University of Texas Southwestern Medical Center. Thank you, everyone, for joining us today. So starting us off today is Dr. Agarwal who will be talking about research in prostate cancer. Go ahead, Dr. Agarwal.


Dr. Agarwal: Hi. Thank you, Greg. So I'd like to start with 2 studies. They both are in prostate cancer which will be followed by my colleagues presenting studies in other cancers in bladder cancer and kidney cancer. So I’ll start with this abstract, which was highly discussed by the doctors at the ASCO Annual Meeting a few weeks ago, and it has a lot of relevance in our practice. So this is abstract #5000 presented by Dr. Michael Hofman, and this was the update on a clinical trial which compared lutetium PSMA-617, or lutetium PSMA, to put it simply, with cabazitaxel in patients with metastatic castration-resistant prostate cancer who had disease progression after receiving docetaxel chemotherapy.


So, who were the patients who were enrolled on the study? These patients had, as I said, metastatic castration-resistant prostate cancer, who had disease progression after docetaxel chemotherapy, and who had to have high PSMA-expressing prostate cancer. And the way they assessed the presence of high PSMA expression was by using a specialized kind of PET scan known as Gallium 68 PSMA-11 PET scan. In addition, they made sure that these patients do not have another type of prostate cancer, also call it dedifferentiated prostate cancer, by making sure that those patients did not have a traditional PET scan-positive disease.


So this was a highly selected patient population who were expressing PSMA on their prostate cancer. Prior to this presentation, the earlier presentation had shown that lutetium PSMA was superior to cabazitaxel as far as progression-free survival is concerned and also was associated with lower incidence of grade 3 or 4 side effects. In this update, after a longer follow-up of 3 years, Dr. Hofman and Dr. Davis, who is a senior aut...