Promising New Therapies in Non-Muscle Invasive Bladder Cancer

Dr. Sumanta (Monty) Pal and Dr. Petros Grivas discuss innovative new intravesical therapies and other recent advances in the treatment of non-muscle invasive bladder cancer.

TRANSCRIPT

Dr. Sumanta (Monty) Pal: Hello and welcome. I'm Dr. Monty Pal here at the ASCO Daily News Podcast. I'm a medical oncologist and professor and vice chair of academic affairs at the City of Hope Comprehensive Cancer Center in Los Angeles. And I'm really delighted to be your new host here.

Today's episode is going to really sort of focus on an area near and dear to my heart, something I actually see in the clinics, and that's bladder cancer. We're specifically going to be discussing non-muscle invasive bladder cancer, which actually comprises about 75% of new cases.

Now, in recent years, there's been a huge shift towards personalized bladder-preserving strategies, including innovative therapies and new agents that really are reducing reliance on more primitive techniques like radical cystectomy and radiation therapy. And I'm really excited about this new trend. And really at the forefront of this is one of my dear friends and colleagues, Dr. Petros Grivas. He's a professor in the Department of Medicine and Division of Hematology Oncology at the University of Washington. It's going to take a while to get through all these titles. He's taken on a bunch of new roles. He is medical director of the International Program, medical director of the Local and Regional Outreach Program, and also professor in the Clinical Research Division at the Fred Hutch Cancer Center. Petros, welcome to the program.

Dr. Petros Grivas: Thank you so much, Monty. It's exciting for me to be here.

Dr. Sumanta (Monty) Pal: Just FYI for our audience, our disclosures are available in the transcript of this episode. 

We're going to get right into it, Petros. Non-muscle invasive bladder cancer, this is a really, really challenging space. We see a lot of recurrence and progression of the disease over time, about 50% to 70% of patients do have some recurrence after initial treatment, and about 30% are ultimately going to progress on to muscle-invasive or metastatic disease.

Now, I will say that when you and I were in training, non-muscle invasive bladder cancer was something that was almost relegated to the domain of the urologist, right? They would use treatments such as BCG (Bacillus Calmette-Guérin) in a serial fashion. It was rare, I think, for you and I to really enter into this clinical space, but that's all changing, isn't it? I mean, can you maybe tell us about some of the new therapies, two or three that you're really excited about in this space?

Dr. Petros Grivas: Monty, you're correct. Traditionally and conventionally, our dear friends and colleagues in urology have been managing patients with non-muscle invasive bladder cancer. The previous term was superficial bladder cancer. Now, it has changed, to your point, to non-muscle invasive blad