Tag Archive for: PDL1

Non-Small Cell Lung Cancer Treatment Options | Personalizing Therapy

Non-Small Cell Lung Cancer Treatment Options | Personalizing Therapy from Patient Empowerment Network on Vimeo.

How does the presence of biomarkers impact lung cancer treatment options? Lung cancer specialist Dr. Isabel Preeshagul discusses how test results may influence treatment options and aid in personalizing lung cancer therapy.

Dr. Isabel Preeshagul is a thoracic medical oncologist at Memorial Sloan Kettering Cancer Center. Learn more about Dr. Preeshagul.

See More From INSIST! Lung Cancer

Related Resources:

An Expert Explains Predictive Biomarker Testing for Lung Cancer

An Expert Explains Predictive Biomarker Testing for Lung Cancer

What Biomarkers Affect Lung Cancer Care and Treatment

What Biomarkers Affect Lung Cancer Care and Treatment?

Lung Cancer Care Decisions | Advice for Self-Advocacy

Lung Cancer Care Decisions | Advice for Self-Advocacy


Transcript:

Katherine Banwell:

How do biomarkers in lung cancer affect treatment options for lung cancer patients? 

Dr. Isabel Preeshagul:

So, it used to only be in stage IV, but now we are learning that biomarker testing is really important from the get-go because we have induction or neoadjuvant protocols that are looking at giving targeted therapy before patients go to surgery. 

We know that there’s FDA approval for patients to get targeted therapy after surgery, and there’s a survival advantage there. So, make sure that you have next-generation sequencing testing regardless of your stage. 

Katherine Banwell:

Okay. That’s good advice. So, we’ve heard how testing and a patient’s individual disease can lead to more targeted options. And you just mentioned targeted therapies. How do they work? 

Dr. Isabel Preeshagul:

So, there are many different targeted therapies that we have. Some of given as an infusion. For HER2, for example, we have TDXD, and we have T-DM1. TDXD is the only drug that’s FDA-approved in this setting. There are clinical trials looking at T-DM1. For EGFR Exon 20, we have another infusional drug called amivantamab-vmjw (Rybrevant). For EGFR Exon 19 and Exon 21, we have a pill called osimertinib (Tagrisso). For KRAS, there’s a pill. For most of the driver alterations, it’s a pill, but some of them it does require infusional therapy. But these are therapies that are targeted at the cells that harbor that mutation.  

Katherine Banwell:

Let’s turn to immunotherapy. What is it, and how does it work? 

Dr. Isabel Preeshagul:

So, immunotherapy is basically teaching your body to recognize cancer as foreign. So, when you have – I always kind of use this hand model. So, basically, a normal cell has, let’s say, three prongs. And then sometimes what happens is cancer will grow a marker called PD-L1 that makes it hide from the immune system. So, the body thinks that this is a normal cell. So, what immunotherapy does is it comes up and it sort of puts a cap on that PD-L1 so that the cell looks foreign again and the body can attack that cell and get rid of it. So, it’s almost like ramping up your immune system to recognize that marker and get rid of that cell.  

Katherine Banwell:

What is the regimen for immunotherapy, and how often is treatment administered? 

 Dr. Isabel Preeshagul:

So, immunotherapy is approved in the neoadjuvant setting, which means before chemotherapy. It’s approved after chemotherapy, and it’s approved in the stage IV setting. There are many different regimens and many different dosings and many different drugs. But it’s typically given in your veins, either once every three weeks or once every four weeks for a certain amount of time. If it’s given in a curative setting and it’s given indefinitely or until there’s disease progression or intolerance in the stage IV setting.  

Katherine Banwell:

Okay. Let’s touch upon the side effects of these types of treatment. You’ve mentioned that there are so many, but what are some of the major side effects, and how are they managed? 

Dr. Isabel Preeshagul:

Side effects of immunotherapy can include pneumonitis, which is inflammation of the lungs, any kind of endocrinopathy like issues with your thyroid, issues with your pancreas like diabetes.  

It can cause colitis, which is diarrhea, inflammation of the colon, hepatitis, inflammation of the liver. It can cause cerebritis, inflammation of the brain. It can cause arthritis or arthralgias, inflammation of the bones. And it can also cause rash and fatigue.  

Typically, if it’s the thyroid, it’s managed with thyroid replacement hormone or a drug that would calm down the thyroid if it’s overactive. Pneumonitis is steroids. Hepatitis is sometimes treated with steroids. Colitis, steroids typically. Steroids usually come somewhere in there, usually not with the endocrinopathies, but the other itis’s, it’s typically – we start with steroids and go up from there. And the goal is to really recognize these toxicities before they become a problem and just at the glimmer of them just starting.  

Katherine Banwell:

So, would you consider these treatments to be personalized medicine then? 

Dr. Isabel Preeshagul:

So, it’s personalized in the sense that if someone has a high PD-L1 expression, there may be some data to demonstrate that they may benefit from immunotherapy or have a response. If someone can’t tolerate chemotherapy or is not interested in chemotherapy or has other reasons that may preclude them from getting it, it might be reasonable. So, in that sense, it is considered personalized.  

Katherine Banwell:

How would you define personalized medicine? 

Dr. Isabel Preeshagul:

To me, personalized medicine takes into account the biologic makeup of a patient’s disease like if they have a mutation and what their PD-L1 status is, what the histologic makeup of it. What’s their stage? And then, on the other hand, what’s important to that patient? If they’re a tailor, you want to make sure you’re not giving them a medication that’s going to cause neuropathy, so they can’t use their hands.  

If they enjoy playing the harp or the piano, same thing. If their goal is to continue to run marathons, you may want to avoid something that’s going to cause inflammation of the lungs and risk them for pneumonitis. Tailoring to make sure that the treatment is part of their life but does not become their life.  

What Essential Testing Reveals About Your Non-Small Cell Lung Cancer

What Essential Testing Reveals About Your Non-Small Cell Lung Cancer from Patient Empowerment Network on Vimeo.

What do lung cancer test results reveal to your healthcare team about your disease? Dr. Isabel Preeshagul provides an overview of essential testing for lung cancer and explains the difference between germline and somatic mutations.

Dr. Isabel Preeshagul is a thoracic medical oncologist at Memorial Sloan Kettering Cancer Center. Learn more about Dr. Preeshagul.

See More From INSIST! Lung Cancer

Related Resources:

Insist on Better Lung Cancer Care | Tips for Essential Communication

Non-Small Cell Lung Cancer Treatment Options | Personalizing Therapy

Non-Small Cell Lung Cancer Treatment Options | Personalizing Therapy

Non-Small Cell Lung Cancer Treatment | Clinical Trials and Research Updates

Non-Small Cell Lung Cancer Treatment | Clinical Trials and Research Updates


Transcript:

Katherine Banwell:

I’d like to turn to the clinical side of non-small cell lung cancer. What tests help you identify the type and stage of lung cancer? 

Dr. Isabel Preeshagul:

Obviously, you need a CAT scan. You need a CAT scan of the chest, abdomen, pelvis, and you need an MRI brain and a PET scan.  

Those are really the gold standards for determining clinical staging. In regards to pathologic staging, it’s really important to have tissue samplings. So, you biopsy a site of disease that’s concerning to you. If it looks like there’s only disease in the chest, you want to biopsy the site where there’s the tumor, and then you talk with your thoracic surgery or pulmonary team to determine the best way to sample the mediastinum for full staging.  

Katherine Banwell:

Why is an accurate diagnosis so important? 

Dr. Isabel Preeshagul:

So, an accurate diagnosis is so important, because lung cancer is by no means black and white anymore. There are so many histologic subtypes that we are learning about. There are so many different molecular drivers that we are learning about. So, making sure you have the right diagnosis, full and next-generation sequencing testing, all of the imaging that you need could really make or break your treatment plan.  

Katherine Banwell:

Dr. Preeshagul, let’s talk about biomarker testing. How is biomarker testing for lung cancer different from hereditary genetic testing? 

Dr. Isabel Preeshagul:

So, we do do hereditary genetic testing for lung cancer patients as well. So, I think let’s backtrack a little bit. When you’re doing on a patient, there are germline mutations and there are somatic mutations. And germline mutations are mutations that you might get from Mom and Dad that they got from their parents and so on and so forth that you could give to your children or your brother and sister or whatever. So, that’s germline testing that could be passed along.  

That would be like BRCA or any other APC gene, but we are learning more and more that there are mutations in lung cancer that do have a hereditary aspect to them. So, we are learning now that while we do somatic testing, which is to find a mutation that just spontaneously happened in your tumor all on its own, it’s really important to pair that with germline testing to make sure that there isn’t some kind of heritable mutation that’s also driving this lung cancer.  

Katherine Banwell:

You mentioned hereditary genetic testing. Should family members of people with lung cancer undergo genetic testing then just to be reassured? 

Dr. Isabel Preeshagul:

So, if there is a germline mutation, then they should – the family members should be referred to a geneticist to have that discussion.  

Katherine Banwell:

What are common lung cancer biomarkers? 

Dr. Isabel Preeshagul:

So, we have nine biomarkers within approval right now, but there are so many. There’s more than I could even talk about today. But some of the more common ones are EGFR, ALK, ROS1, MET exon 14. You have KRAS, KRAS-G12C, which is a newer one. We have NTRK. We have RET. The list goes on, HER2. I could talk for – there’s not enough time on this Zoom video to talk about all of the mutations. But there are nine mutations with approvals as of now to date, this very moment. That could change tomorrow.