Dr. Monty Pal and Dr. Pauline Funchain discuss the latest efforts to diagnose, prevent, and treat the series of immune-related adverse events that have emerged in the era of immunotherapy.

TRANSCRIPT

Dr. Monty Pal: Hello, and welcome to the ASCO Daily News Podcast. I am Monty Pal, a medical oncologist, professor and vice chair of medical oncology at the City of Hope Comprehensive Cancer Center in Los Angeles, California.

Now, it is probably no surprise to this audience that immunotherapy has transformed the treatment landscape for multiple cancer types. It remains a pillar of modern oncology. Having said that, I think we have all been baffled by certain toxicities that we run into in the clinic.

Today, I am delighted to be joined by Dr Pauline Funchain to discuss some of the checkpoint inhibitor toxicities that people struggle with most. And we will also touch on some side effects of immunotherapy beyond checkpoint inhibitors: CAR-T cells, bispecifics, so on and so forth.

Dr Funchain is a dear friend, and she is an associate professor and associate director of cancer research training and education at the Stanford Cancer Institute. She is co-director of the Immunotherapy Toxicity Program and the Skin Cancer Genomics Program at Stanford, where she also serves as associate program director of hematology and oncology fellowship. Dr. Funchain is also the co-founder of ASPIRE, and we are going to talk about that a little bit today, the Alliance for the Support and Prevention of Immune-Related Events.

FYI for listeners, if you are interested in our disclosures, they are available at the transcript of this episode.

Pauline, thanks so much for joining us today.

Dr. Pauline Funchain: Monty, thank you for this invitation. It is always great to talk.

Dr. Monty Pal: So, for the audience, Pauline and I know each other from my days as a fellow at City of Hope. She was a resident at Harbor UCLA and a stellar resident at that. It has just been amazing to sort of see your career grow and blossom and to witness all the cool things that you are doing.

ASPIRE, in particular, sort of caught my eye. So again, for listeners, this is the Alliance for the Support and Prevention of Immune-Related Events. Can you tell us a little bit briefly about the genesis of that, how that came about?

Dr. Pauline Funchain: So, there was a bunch of us who were really struggling, I mean, all of us have struggled with these immune-related adverse events, these irAEs. You know, they are new disease states, and even though they look like autoimmune diseases, they tend to need a whole lot more steroid than autoimmune diseases do and they do not totally present in the same way. And in fact, you know, Triple-M, or Triple-M overlap syndrome, is a completely new irAE, a new immune state that we have never had before the advent of checkpoint inhibitor. And so a Triple-M, for those of you who are not as familiar, that is the constellation of myocarditis, myositis, and myasthenia gravis, something that never occurs as a natural autoimmune disease.

So we were starting to realize that there were some major differences with these irAEs and autoimmune diseases. We could not treat them the right way. We really needed to learn more about them. And a bunch of us who had interest in this said, "Look, we really need to be all in one space to talk about what we are doing," because all of our treatments were our own little homegrown brews, and we needed to really get together and understand how to treat these things, how to diagnose them, and then learn more about them.

So, Dr. Alexa Meara from Ohio State, Dr. Kerry Reynolds from Mass Gen, we put together this research consortium, brought together all of our irAE friends, got our best subspecialists together in a research consortium, which is now only about a year and a half old. And we made this research consortium, the Alliance for Support of Prevention of Immune-Related Events, and we reached out to ASCO, and ASCO was so kind to grant us a [Alliance for Support and Prevention of Immune-Related adverse Events (ASPIRE)] Community of Practice. So we met for the first time as a Community of Practice at the ASCO Annual Meeting just this past June and really got an ASCO community together to really think about how to again, diagnose, prevent, treat irAEs.

Dr Monty Pal: This is interesting to me. The ASCO Community of Practice phenomenon is something that I was not super familiar with. Can you explain to our listenership what is the ASCO Community of Practice model? If you have particular interests, how do you sort of get one started?

Dr Pauline Funchain: Yeah, so ASCO has an entire page on their Community of Practice. There are multiple Community of Practice groups or COPs. There are ones for Supportive Oncology and Survivorship. There is Women in Oncology. There is a group for International Medical Graduates. And there is about, I think 10 or 12 now that have a physical presence at ASCO but also a virtual presence on the ASCO Community of Practice site. So, if you were interested in any one of these, and you can see them on the ASCO Communities of Practice sites, you would ask to become a member. Once granted membership, then there is a whole webpage of postings and conversations that people can have. You can get email digests of conversations that happen on the website, and then you can anchor it with in-person participation at the Annual Meeting.

Dr Monty Pal: That is awesome, and I can think of so many different foci within oncology that really sort of deserve a Community of Practice. This definitely being one of them.

You know, it strikes me as being so interesting. I mean, the checkpoint inhibitors have been around for a while now. I think when you and I were in training, gosh, back then, these were just a little bit of a pipe dream, right? But having said that, I would probably say that more than half of my kidney cancer practice is either on checkpoint inhibitors, and the vast majority have been on one at some point in their past, right? With that in mind, you know, we have all treated a lot of patients with these drugs. Why is it that we still struggle to manage the toxicities? And just to take that one step further, what are some of the toxicities that, perhaps through ASPIRE or through your experience, people struggle with the most?

Dr Pauline Funchain: So, I think we are still struggling with these because again, they are new disease states, right? This is what we all experienced with COVID, a brand-new virus and a brand-new syndrome. We now have 20-plus of these as irAEs. And what we have realized about them is the immune activation that happens with these is so much more than what we have seen with autoimmune diseases. So for instance, if you have a Crohn's or ulcerative colitis, you will top out at 40 to 60 milligrams of prednisone if a Crohn's flare or ulcerative colitis flare happens. But for our severe IR colitises, you know, it is at least 1 mg per kg, often goes up to 2 mg per kg. We, in some cases, have done 1 gram pulses if we are worried that somebody is going to perforate. So that was sort of like the first 5 years of treating irAE, and then now in the sort of second 5 years of treating irAE, we have realized that that is a lot of immunosuppression, and we might be able to get away with less with the newer biologics that are on board.

So, we are struggling to try to get the data for some of these irAEs that we knew, we have known for a while, but to try to get newer treatments that may immunosuppress less so that you may still be able to retain that tumor response. And in fact, some of the preclinical studies suggest that some of these biologics may actually synergize with the immunotherapy and actually make the immunotherapy more effective from a tumor perspective and calm down the irAE as sort of the bystander effect. So we are still trying to optimize those. Getting up trials in the space has been very difficult. That is one of the reasons for the genesis of ASPIRE because we realized we needed to band together to have a bigger voice in that realm.

Then there are other things that are brand new. So we talked about Triple-M. So Triple-M, again, with Triple-M or any myocarditis or myasthenia, I mean, there is about a 50% chance of death from irAE based on the literature. I think we are getting better at recognizing this, and so at Stanford we have some data to say that if you serially follow troponin, that maybe your outcomes are better. You can potentially lower the percentage of cases that are fatal because you can catch them early. I mean, this is all preliminary data, but again, these are all things that are evolving, and we do not all have the right answer. I mean, even the serial troponin thing, I think, is pretty controversial. And in fact, at one of our quarterly Zoom meetings that we are doing in ASPIRE in December is going to sort of flush out that controversy about serial troponin measuring and what is the best thing to use? Would you use something like abatacept or would you use ruxolitinib? Which one is better? I think there is a lot of controversy still about these things.

Dr Monty Pal: You have really piqued my curiosity here because you think about the cons of treating irAEs, right? And I worry exactly...

Managing Immune-Related Toxicities in Oncology