Dr. Ryan Augustin and Dr. Jason Luke discuss neoadjuvant immunotherapy and the importance of multidisciplinary team coordination, promising new TIL therapy for advanced melanoma, and the emerging role of CD3 engagers in treatment strategies.
TRANSCRIPT
Dr. Ryan Augustin: Hello, I'm Dr. Ryan Augustin, your guest host of the ASCO Daily News Podcast today. I'm a medical oncology fellow at Mayo Clinic in Rochester, Minnesota. Joining me today is Dr. Jason Luke, an associate professor of medicine and the director of the Cancer Immunotherapeutic Center at the University of Pittsburgh Hillman Cancer Center. I had the privilege of working as a postdoc in Jason's translational bioinformatics lab, where we investigated mechanisms of resistance to immunotherapy in melanoma and other cancers.
Today, we'll be discussing 3 important topics, including neoadjuvant immunotherapy and the importance of multidisciplinary team coordination, the impact and practical considerations for incorporating TIL therapy into melanoma, and the current and future use of CD3 engagers in both uveal and cutaneous melanoma.
You'll find our full disclosures in the transcript of this episode.
Jason, it's great to have this opportunity to speak with you today.
Dr. Jason Luke: Absolutely. Thanks, Ryan. It's great to see you.
Dr. Ryan Augustin: So, to kick things off, Jason, we, of course, have seen tremendous advances in cancer immunotherapy, not only in metastatic disease but also the perioperative setting. Recent data have shown that the use of neoadjuvant therapy can provide not only critical prognostic information but can also help individualize post-resection treatment strategies and potentially even eliminate adjuvant therapy altogether in patients who achieve a pathologic, complete response. This signifies a conceptual shift in oncology with the goal of curing patients with immunotherapy. In triple-negative breast cancer, the KEYNOTE-522 regimen with pembrolizumab is standard of care. In non-small cell lung cancer, there are now four FDA approved chemo-IO regimens in both the neoadjuvant and perioperative settings. And, of course, in melanoma, starting with SWOG S1801 utilizing pembro mono therapy, and now with combined CTLA-4 PD-1 blockade based on results from the NADINA trial, neoadjuvant IO is the new standard of care in high-risk, resectable melanoma. It's important to highlight this because whereas other tumor types have more mature multidisciplinary care, for example, patients with breast cancer are reviewed by the whole team in every center, and every patient with lung cancer certainly benefits from multidisciplinary care conferences, that's not always the case with melanoma, given the relative frequency of cases compared to other tumor types.
Jason, would you say that we have now moved into an era where the integration of a multidisciplinary team and melanoma needs to be prioritized. And why is it important to have multidisciplinary team coordination from the onset of a patient's diagnosis?
Dr. Jason Luke: Well, I think those are great questions, Ryan, and I think they really speak to the movement in our field and the great success that we've had integrating systemic therapy, particularly immunotherapy, into our treatment paradigms. And so, before answering your question directly, I would add even a little bit more color, which is to note that over the last few years, we've additionally seen the development of adjuvant therapy into stages of melanoma that, historically speaking, were considered low-risk, and medical oncologists might not even see the patient. To that, I'm speaking specifically about the stage 2B and 2C approvals for adjuvant anti-PD-1 with pembrolizumab or nivolumab. So this has been an emerging complication.
Classically, patients are diagnosed with melanoma by either their primary care doctor or a dermatologist. Again, classically, the next step was referral to a surgeon who had removed the primary lesion, with discussion around nodal evaluation as well. And that paradigm has really changed now, where I think integration of medical oncology input early on in the evaluation of the appropriate treatment plan for patients with melanoma is quite a pressing issue now, both because we have FDA approvals for therapeutics that can reduce risk of recurrence, and whether or not to pursue those makes a big difference to the patient for discussion early on.
And, moreover, the use of systemic therapies now, prior to surgery, of course, then, of course, requires the involvement of medical oncology. And just for an emphasis point on this, it's classically the case, for good reason, that surgeons complete their surgery and then feel confident to tell the patient, “Well, we got it all, and you're just in really good shape.” And while I understand where that's coming from, that often leaves aside the risk of recurrence. So you can have the most perfect surgery in...