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Immunotherapy Combinations Poised to Shift Standard of Care in RCC

Danielle Bucco
Published: Wednesday, Dec 06, 2017

Hans J. Hammers, MD, PhD
Hans J. Hammers, MD, PhD
Immunotherapy combinations continue to demonstrate improved response rates for patients with renal cell carcinoma (RCC). Frontline therapy with the combination of nivolumab (Opdivo) and ipilimumab (Yervoy) reduced the risk of death by 32% compared with standard sunitinib (Sutent) for patients with metastatic disease, according to data from the CheckMate-214 study.

In an interview with OncLive at the 35th Annual Chemotherapy Foundation Symposium, Hammers, who is co-leader of the Kidney Cancer Program at the Harold C. Simmons Comprehensive Cancer Center of UT Southwestern Medical Center, discussed the game-changing combination of nivolumab and ipilimumab and highlighted other combinations that have potential in the treatment of patients with RCC.

OncLive: Please provide an overview of your presentation at this meeting.

Hammers: I discussed immunotherapy combinations. It is an exciting time because it is expected that immunotherapy combinations are going to supplant first-line tyrosine kinase inhibitor (TKI) therapy. We have had sunitinib for more than a decade. Just recently, one of the pivotal trials was positive and beat sunitinib in response rate and OS. The PFS in the intermediate- and poor-risk population was 75% in all patients with kidney cancer.

In my talk, I concluded with thoughts about how to look at these trials and what some interesting aspects are that we should look at when we try to interpret the data sets.

With these new agents and a shift in the standard of care, what advice can you give to community oncologists to navigate these new treatments?

For community oncologists, particularly those who have not treated patients with melanoma, they will be introduced to ipilimumab (Yervoy). There is an important distinction between the combination in kidney cancer and melanoma. Melanoma has the higher dose of ipilimumab and kidney cancer has the lower dose of ipilimumab. Anyone who has previously used ipilimumab in the context of melanoma will be relieved to see that the side effect profile is clearly better regarding hepatitis.

Nonetheless, it is a dual immune checkpoint inhibition therapy. Around 50% to 60% of patients require immune suppression for all immune side effects. However, they can be treated well with established guidelines. Nonetheless, physicians who are treating patients with kidney cancer with this combination will need to watch them closely. We will all become experts at managing immune side effects, but early reporting is key. Patient education is going to be important in reporting side effects early. We are well poised to guide patients through that therapy.

Can you discuss the severity of the adverse events that physicians should be mindful of?

I ask my patients to tell me what they should be concerned about. They should say pneumonitis, hepatitis, colitis, and the respective symptoms. There is a plethora of other rare side effects, but those are the 3 that I say cause most of the needs for the use of steroids and are more threatening than some of the other adverse effects. Once you spend time with these adverse effects, most patients know what to call for and what to report. 

It is important to see it as teamwork. I often engage the spouse, particularly with male patients. Women are much better at reporting side effects and getting the spouse to call. Creating a sense of community encourages patients to report adverse effects early, which is key. You do not want to wait until you have a grade 3/4 toxicity. You want to treat some of the side effects when they are grade 2.

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