Tag Archive for: specialist

What Are Essential Genetic Tests for Metastatic Breast Cancer Patients?

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What Are Essential Genetic Tests for Metastatic Breast Cancer Patients? from Patient Empowerment Network on Vimeo. 

Genetic tests can help guide metastatic breast cancer care. Dr. Julie Gralow discusses essential genetic tests for metastatic breast cancer, and how results impact treatment decisions.

Dr. Julie Gralow is the Jill Bennett Endowed Professor of Breast Medical Oncology at the University of Washington, Fred Hutchinson Cancer Research Center, and the Seattle Cancer Care Alliance. More about this expert here.

See More From INSIST! Metastatic Breast Cancer

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How Genetic Mutations Affect Metastatic Breast Cancer Disease Progression and Prognosis

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What Could Metastatic Breast Cancer Genetic Testing Advances Mean for You?

 

Transcript:

Katherine:                  

For a patient to get diagnosed, what are the essential tests?

Dr. Gralow:                

So, we’re talking about metastatic breast cancer here, and in the U.S., maybe up to 10% or slightly less of breast cancer is technically Stage 4 or metastatic at diagnosis. That means at the time we first found it in the breast, it had already spread beyond. So, an important thing that we’ll do with a newly diagnosed breast cancer is especially if there are a lot of lymph nodes are involved or the patient has symptoms that might say there’s something in the bone, liver, or lung is staging.

So, we’ll use scans – maybe a CAT scan, bone scan, or PET scan – and we will look at whether the disease has gone beyond the breast and the lymph nodes, and if so, where. So, maybe 8-10% of breast cancer diagnosed in the U.S. already has some evidence that it has spread beyond the breast, but the most common way that metastatic breast cancer happens is that a patient was diagnosed possibly years and years ago, treated in the early-stage setting, and now it comes back, and that is the most common presentation for metastatic breast cancer, and sometimes that can be due to symptoms.

As I said, if it comes back in the bone, maybe that’s bone pain. If it’s in the lung, it’s a cough. There are symptoms. Sometimes, it’s because we’ve done a blood test or something and we find some changes there.

And so, when a breast cancer has recurred, it’s really important to document that it’s really breast cancer coming back, first of all, and so, if we can, we generally want a biopsy, and we want to stick a needle in it if it’s safe to do, and look and verify that it looks like breast cancer, and also, it’s really important that we repeat all those receptors that we talked about from the beginning because it can change.

So, a cancer up front 10 years ago could have been positive for estrogen receptor, but the only cells that survived – mutated, changed – were estrogen receptor negative, so what comes back could be different. So, it’s really critical to get that biopsy, repeat the estrogen/progesterone receptor and HER2, and also, in an ideal world, now that it’s 2020 and we’re moving more toward genomics, to do a full genomic profile and look for other changes and mutations that could drive our therapeutic options.

So, staging, knowing where the cancer is, getting a good baseline by understanding where it is and how big it is so that we can follow it and hopefully see that it’s responding to treatment, and then, repeating all of the biology components so that we know what the best options are for treatment are really critical.

Katherine:                  

Right. How can patients advocate for a precise breast cancer diagnosis, and why is that important?

Dr. Gralow:                

Well, all those things I just mentioned are key. Knowing exactly where it is so that we can monitor it – for example, if the cancer has come back in the bones, we would add what we call a bone modifying agent, a drug like zoledronic acid or denosumab – Zometa or Xgeva – which can suppress bone destruction from the cancer, but if it’s not in the bone, we wouldn’t add that.                                   

And, we want to have a good look everywhere so that we can see if it’s responding because sometimes, the tumor can respond differently in one area than another. Also, I think it’s really important to know what your treatment options are by doing that biopsy, getting a full panel, and looking at potentially hundreds of genes that could be mutated, deleted, or amplified so that we know what our treatment options are.

And, we’re not going to use all the treatment options up front, so it’s helpful for knowing that if this treatment doesn’t work or is too toxic, what are the second-line or third-line options? So, we make sure that there’s what we call good staging up front so we know where the cancer is, and then we make sure that we’ve looked at it as best we can in 2020 with all the genomics.

 That would give us the best chance of being tailored – individualized – to the tumor. Sometimes, if we can’t biopsy it, like with a needle that would go into a liver spot, then increasingly, we’re looking at what we call liquid biopsies, and that can be drawing the blood and seeing if we can find parts of the tumor, whether it be the DNA or the RNA that’s floating around in the blood, and sometimes we can get that information out of the blood as well.

Metastatic Breast Cancer Staging: What Patients Should Know

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Metastatic Breast Cancer Staging: What Patients Should Know from Patient Empowerment Network on Vimeo.

Breast cancer expert Dr. Julie Gralow discusses metastatic breast cancer staging, including prognostic staging, breast cancer subtypes, and the meaning of metastasis.

Dr. Julie Gralow is the Jill Bennett Endowed Professor of Breast Medical Oncology at the University of Washington, Fred Hutchinson Cancer Research Center, and the Seattle Cancer Care Alliance. More about this expert here.

See More From INSIST! Metastatic Breast Cancer

Related Resources:

 

What Are Essential Genetic Tests for Metastatic Breast Cancer Patients?

Metastatic Breast Cancer: Debunking Common Misconceptions

What Could Metastatic Breast Cancer Genetic Testing Advances Mean for You?

 

Transcript:

Dr. Gralow:                

The staging of breast cancer has traditionally been by something we call anatomic staging, which has the tumor size, the number of local lymph nodes involved, and whether it has metastasized beyond the lymph nodes. So, that’s TNM – tumor, nodes, metastases. And so, that’s the classic staging, and based on combinations of those things, you can be a Stage 0 through Stage 4. Stage 0 is reserved for ductal carcinoma in situ, which is a noninvasive breast cancer that can’t generally spread beyond the breast, so that’s Stage 0, and then we go up for invasive cancer.

Interestingly, just a couple years ago, the big group that oversees the staging of cancers decided that in breast cancer, that TNM – the size, the lymph nodes, and the location beyond the lymph nodes – is not good enough anymore, so they came up with a proposal for what we call a clinical prognostic stage, which is a companion to the traditional TNM staging.

What they were getting at here was it’s not just how big your cancer is, how many lymph nodes, or whatever, it’s also at the biology of your cancer. So, this new clinical prognostic stage takes into account the estrogen and progesterone receptor of your cancer, the HER2 receptor at the grade, which is a degree of aggressiveness, and then, if your tumor qualifies, one of the newer genomic testing profiles that we use in earlier-stage breast cancer, such as the Oncotype DX 21-gene recurrence score or the MammaPrint 70-gene assay.

So, all of that goes into account now, and the whole point here is that the estrogen receptor, the HER2, the grade, and some of these genomics may actually make more difference than how many lymph nodes you have, where the cancer is, and how big it is, so it’s not just the size, but also the biology of the cancer that we’re trying to include in the new staging systems.

Katherine:                  

In this program, Dr. Gralow, we’re focusing on metastatic breast cancer. Would you explain when breast cancer is considered to have metastasized?

Dr. Gralow:                

That’s a great question because technically, if the lymph nodes in the armpit – the axillary area – are involved, that does represent spread beyond the breast, but if it stays in the local lymph node areas, it’s not technically called a metastatic or Stage 4 breast cancer. So, metastatic breast cancer would have traveled beyond the breast and those local lymph nodes, and some common sites would be to the bone, to the lungs, to the liver, less commonly – at least, up front – to the brain, and it could also travel to other lymph node groups beyond those just in the armpit and the local chest wall area as well.

Katherine:                  

What about subtypes? How are they determined?

Dr. Gralow:                

The main way that we subtype breast cancer right now is based on the expression of estrogen and progesterone receptor, the two hormone receptors, and the HER2 receptor, the human epidermal growth factor receptor. So, to date, those are the most important features when we subtype, and so, a tumor can either express estrogen and progesterone receptor or not, and it can overexpress or amplify HER2 or not, and if you think that through, you can come up with four different major subtypes, in a way, based on estrogen receptor positive or negative and HER2 positive or negative.

When all three of those are negative, we call that triple negative breast cancer, and that’s about 18-20% of all breast cancers as diagnosed in the U.S. And then, when all three are positive, we sometimes call it triple positive, and the reason that we subtype is because we know that those different subsets act differently and that we have different drugs to treat them with, and we’ve got great drugs in the categories of hormone receptor positive and HER2 positive, and increasingly, some recently hope in a new drug approval or two in triple negative breast cancer as well.

New and Improved Lung Cancer Treatment Options

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New and Improved Lung Cancer Treatment Options from Patient Empowerment Network on Vimeo.

Are there new lung cancer treatment options that you should know about? Expert Dr. Heather Wakelee reviews the latest research. Looking for more information? Download the Find Your Voice Resource Guide here.

Heather Wakelee, MD is Professor of Medicine in the Division of Oncology at Stanford University. More about this expert here.

See More From the The Pro-Active Lung Cancer Patient Toolkit

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Transcript:

Dr. Wakelee:

So, the treatment of lung cancer has been changing very, very quickly. We’ve had a lot of new options that have become available in the last few years, and there’re new ones coming along all the time. When I started treating lung cancer, which was a number of years ago, we were able to treat and help people.

But our only real option when the cancer was metastatic was chemotherapy. Chemotherapy is still an important part of treatment for many people, but now we have other options. So, starting about 15 years ago, people were able to identify that some tumors had specific genetic changes. We also call these molecular changes, or gene mutations, or just mutations in the tumor. They have a lot of different names.

But when we do find them, these are things like EGFR or ALK or ROS or BRAF or MET, we actually have different treatment options that only work for tumors that have those specific genetic changes, and don’t work in tumors that don’t have those. So, when we talk about genetic changes a lot of people think, “Oh, that’s something that I’ve inherited.”

These are not things that are inherited. This is not something that’s in the whole person. It’s just in the tumor. So, it’s a mutation that happened in the DNA of the cell, and that cell then became the cancer. And depending on what that mutation or mutations are, we still can have chemotherapy, and that can work.

But for specific ones, and specifically EGFR, ALK, ROS, BRAF, we know that there are pill drugs and oral medication that actually is gonna be better than chemo, at least for a period of time, if a cancer has that specific mutation.

So, it’s really, really important to figure that out. It’s not something a doctor can sort out just by looking at the patient or looking at the tumor under the microscope. We have to do special testing, looking at the tumor DNA.

And we now have ways of looking for those mutations, not just in the tumor tissue, but also sometimes with blood. So, we can draw a blood test and look for those as well when there’s a tumor that’s shedding the DNA. So, it’s really important to think about that. And we now have a whole host of medications that we can offer people when we the find these mutations that we didn’t used to have, even a few years ago.

And, actually, if you think back over the last five years, we’ve had new drugs approved, a few of them every year, for these specific gene mutation tumors, so that’s really, really exciting. The other thing that’s changed dramatically just in the last five years is what we call immune therapy.

So, when we think about the different types of treatment, chemotherapy works by poisoning DNA. And in order to make a new cell, you have to make new DNA. Tumors are doing that more than a lot of normal tissue, and so we’re able to give chemotherapy and specifically hurt tumors and not the rest of the person very much.

With the targeted treatments where we find a gene target and where there’s a gene mutation in a tumor, those are medications that specifically hit that altered gene, that altered protein made by the gene. And then they work really, really well. What immune therapy does is it actually changes the way your body’s own immune system interacts with the tumor. So, we have a lot of types of immune cells, but the ones that are involved in really fighting the cancer directly are called T cells.

And so, normally, a T cell would recognize something that’s foreign like an abnormal-looking cell that’s a cancer, and attack it. But we have a lot of different systems in our body that stop the T cells from recognizing normal tissue and attacking it.

And one of the best systems for that is something called PD-1 and PD-L1. And so, if you have a T cell and it sees a PD-L1 signal on tissue, it assumes that that tissue was normal tissue and it doesn’t attack. But if you can hide that PD-L1 signal, then if it’s a T cell, a part of the immune system comes in and doesn’t see the PD-L1, it doesn’t get the stop signal. It’s not told to not attack. So, it could attack the tumor better.

And I’m not describing it well because it’s so complicated. There are a lot of different factors that help a T cell know whether to attack or not to attack. But, again, one of these key stop signals is the PD-1, PD-L1 interaction. And so, scientists were able to develop medications that can block PD-1 or PD-L1. And when those medications are in the body, if a tumor is using that particular stop signal as a way to hide from the immune system, when you give the medication that blocks it then the tumor is no longer hiding.

And then the immune system, those T cells, can come in and attack. So, these immune treatments, and there are now a lot, and so these are drugs, like pembrolizumab, also called Keytruda; nivolumab, which also called Opdivo; durvalumab, which is called IMFINZI. And there are many, many others. Those medications have now been shown to really, really help to fight cancer, particularly when the tumor is using that PD-L1 signal. But they can also be combined with chemotherapy and then they work even if there’s not a lot of PD-L1 in the tumor. So, again, it’s a very complex story.

But where we’ve seen dramatic improvements in treatment is we have targeted treatments when the genes are – there are specific genes mutating in tumors. We have immune therapy, which worked for a lot of other people. And sometimes when there’s also gene mutation, but not always, we still have chemotherapy. And then there’s ongoing research with a lot of different medications. Many of them are focusing on better ways to get the immune system to work against cancers beyond what we can already do.

Diagnosed with Lung Cancer? Why You Should Seek a Second Opinion

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Diagnosed with Lung Cancer? Why You Should Seek a Second Opinion from Patient Empowerment Network on Vimeo.

Should you seek a second opinion? Lung cancer expert Dr. Heather Wakelee explains when to consider seeing a specialist. Looking for more information? Download the Find Your Voice Resource Guide here.

Heather Wakelee, MD is Professor of Medicine in the Division of Oncology at Stanford University. More about this expert here.

See More From the The Pro-Active Lung Cancer Patient Toolkit

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Transcript:

Dr. Wakelee:

So, when facing a new diagnosis of lung cancer, one of the questions that often comes up is whether one should go get a second opinion or see a lung cancer specialist. And that is a question that obviously is gonna vary quite a bit by where a person is, where they’re getting seen, and what they’re facing.

I think a time that it’s really critical would be if someone has a Stage III lung cancer or told it might be Stage III. That’s a really good time to get a second opinion and make sure that the group that is taking care of you has had a multidisciplinary discussion. And when I say multidisciplinary, I mean, a thoracic surgeon, a radiation oncologist, and a medical oncologist have altogether looked at what’s going on with the particular case of that patient to decide up front what’s gonna be the best approach.

Because sometimes surgery is the right first approach. And sometimes it’s not. And sometimes radiation’s important, and sometimes it’s not.

So, it’s really critical to have a big team looking at what’s going on for Stage III. And if you’re in a hospital that really doesn’t see a lot of Stages III lung cancer that might be a good time to think about getting a second opinion outside of where you’re being treated.

I think, otherwise, if someone is newly diagnosed and we know the cancer is early stage where surgery might be involved, it’s good to check in that the surgeons who would be doing your operation are surgeons who know about lung cancer and have done lung cancer surgeries frequently. Sometimes in smaller hospitals there are surgeons who do both heart and lung surgery. And we know that the outcomes are not always quite as good in that setting.

Sometimes there’s no choice, and that’s okay. But if there is an opportunity to talk to a dedicated thoracic surgeon who’s used to doing lung cancer surgery, that’s another good time to get a second opinion. When we’re dealing with a more advanced stage of metastatic lung cancer, if someone is newly diagnosed and their tumor ends up having an unusual gene mutation or translocation.

And the molecular changes in lung cancer are really important to know about. And things like EGFR and ALK and RAS, where most medical oncologists will be familiar. But there’re others, like BRAF and RET and MET, and those can really change treatment outcomes as well, but not everybody who sees lots of different kinds of cancer as an oncologist will know everything there is to know about those.

So, if you have an unusual gene mutation, that’s another good time to get a second opinion with someone who’s a dedicated lung cancer expert. And usually those folks are at the larger academic medical centers, so oftentimes in cities, or affiliated with universities.

Another time is if someone does have a tumor with an EGFR, ALK, or one of the more common mutations, but the main drugs have stopped working, that’s often a time where someone who has specialized just in lung cancer might have some other options.

It’s also something to think through when someone’s newly diagnosed, if they know that their doctor has looked at the immune markers like PD-L1, and looked at the genetic changes in the tumor, and has a clear plan that’s gonna involve chemotherapy, or chemotherapy plus radiation, or chemotherapy plus immune therapy.

Then there might not be something that’s gonna be different in an academic center. But before you start treatment, if you’re still feeling okay, don’t have to start treatment tomorrow, and wanna know maybe that there’re clinical trial options, that’s another time to think about getting a second opinion. And a lot of academic centers will work to get people in very, very quickly if they knew they’ve just been diagnosed and they really need to get started on treatment right away.