Tag Archive for: HER2 positive

Key Considerations When Making Metastatic Breast Cancer Treatment Decisions

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Key Considerations When Making Metastatic Breast Cancer Treatment Decisions from Patient Empowerment Network on Vimeo.

Making metastatic breast cancer treatment decisions involves weighing key factors. Dr. Jane Lowe Meisel shares important considerations that aid in choosing the best treatment for an individual patient.

Jane Lowe Meisel, MD is an Associate Professor of Hematology and Medical Oncology at Winship Cancer Institute at Emory University. Learn more about Dr. Meisel here.

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Transcript:

Katherine:

Yeah. Yeah. So, what factors are considered when deciding on the best treatment approach for an individual patient?

Dr. Meisel:

So, I think certainly the tumor type that we were talking about. Is it estrogen-positive or HER2-negative or HER2-positive?

I think response to past treatments, both in terms of if someone has had metastatic disease for a long time and has had a few treatments already, how long did they respond to those treatments and how completely did they respond to those treatments?

Did they have stable disease for a while, or did their cancer actively shrink?

And then I think other than that, it would be some of the things I touched on. Side effect profiles. Do patients have pre-existing neuropathy from other chemotherapy? If so, maybe you want to avoid a regimen that causes more neuropathy. Schedule. Some patients, it’s really important to be on a certain schedule, as opposed to a different schedule. I think whether there are clinical trials available instead of whatever the standard of care regimen would be is also important.

Because for some patients who are interested in pushing the envelope or who might be a great candidate for a particular trial, if there is one that they’re a candidate for that’s not horribly inconvenient from a logistics standpoint, then trials I think are also a great option to consider. So, I think from an effectiveness standpoint, you want to think about the tumor type response to past treatments. And then potentially, if the patient has had, what we call genomic profiling, where the tumor has been sent for basically genomic analysis, to see what genes might be mutated in the tumor that could potentially drive a response to a newer, different therapy.

All those things can be taken into account as we think about the cancer. But then there are the patient-specific factors, and I think those would be mainly side effects, schedule, clinical trials and desire or not to pursue those. And then, just what the patient’s perspective is on the plan that you’re offering them. 

An Overview of Metastatic Breast Cancer Treatment Options

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An Overview of Metastatic Breast Cancer Treatment Options from Patient Empowerment Network on Vimeo.

What metastatic breast cancer (MBC) treatment options are available? Dr. Jane Lowe Meisel provides an overview of MBC treatment approaches, including CDK4-6 inhibitors, tyrosine kinase inhibitors, PARP inhibitors, and immunotherapy.

Jane Lowe Meisel, MD is an Associate Professor of Hematology and Medical Oncology at Winship Cancer Institute at Emory University. Learn more about Dr. Meisel here.

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Transcript:

Katherine:

Right.

Well, let’s talk about treatment options for advanced disease. Can you review the types of treatments available for metastatic breast cancer?

Dr. Meisel:

Absolutely. And what I’ll do is, I’ll give you a broad overview and then because there’s so much and this is such a rich environment, I mean, I give hour long lectures just about the treatment of metastatic triple-negative breast cancer to our fellows. So, there is so much meaty information here. But I’ll give an overview with some key buzzwords so then people can go look up things that matter more to them or interest them more. So, as I said, we start with thinking about, is this hormone receptor-positive or estrogen-positive breast cancer? Is this HER2-positive or is this triple-negative? And those factors really send us down different paths.

So, if someone is estrogen-positive, I had mentioned before the PALOMA and MONALEESA studies showing that CDK4-6 inhibitors, which is a class of drugs that the first one was approved in 2015 and then two others have been approved subsequently. So, relatively new drugs. But those drugs, which are pills, added to traditional anti-estrogen therapy which would be aromatase inhibitors or fulvestrant.

Are often great first line options for these patients. And people can do well for years on just that alone, with estrogen-positive metastatic breast cancer. On average, about two years before people progress and need something new. And then after that, there are lots of trials ongoing looking at different ways in which an estrogen-positive breast cancer might progress on that regimen and how do we target that. So that there are multiple other anti-estrogen options down the line that people can use in estrogen-positive breast cancer before they need to even think about going on to something like chemotherapy.

So, really lots and lots of options for those patients, but probably starting with a CDK4-6 inhibitor plus anti-estrogen combination. And then in HER2-positive breast cancer, typically the first line treatment would be what we call monoclonal antibodies directed at HER2. So, something like Herceptin and Perjeta, which you may have heard of. And often combined with chemotherapy. But again, this is one of those areas that is also very, I think the art of medicine is very important and patient dependent.

Some of these regimen depend a little bit on patient’s age and other medical problems and desires, whether to include chemotherapy along with that frontline anti-HER2 regimen. Or whether to think about something like anti-estrogen therapy if the patient is HER2-positive and estrogen-positive. And then there are a lot of other different things we’re also using in HER2-positive disease after patients progress on that initial therapy, so there are what we call, antibody drug conjugates, where a chemotherapy like drug is attached to an antibody that then brings the chemo to the HER2-positive cell and allows for chemotherapy penetration more directly.

And then a class of drugs called tyrosine kinase inhibitors, which are oral drugs that get directed at HER2. So, another really exciting area to treat and a place where we’ve seen so many advances. And then in triple-negative breast cancer, I’d mentioned that chemotherapy has really been the mainstay of treatment historically because there weren’t great targets. But recently we’ve seen that immunotherapy, along with chemotherapy drugs like Keytruda, which you may have heard of.

Or atezolizumab, which is Mesenteric, can be used along with chemo and patients that overexpress a molecule called, PDL1. And that can actually include not just how long patients spend on the first treatment, but how long they live. So, we’re seeing a lot of triple-negative patients being great candidates for immune-based regimens now. And then for patients who have inherited a BRCA gene mutation, which many of you may have heard of. That gene mutation can actually predispose a triple-negative patient to be more receptive to a class of drugs called PARP inhibitors.

So, drugs like Olaparib or Talazoparib are new drugs that’ve been approved in the last couple of years in triple-negative metastatic breast cancer for patients who carry a BRCA1 mutation or BRCA2 mutation. And then there are also antibody drug conjugates in triple-negative breast cancer as well. The Trodelvy that’s been approved and then of course others that are in clinical trials currently. So, as you can see, it’s complex. I mean, the treatment of metastatic breast cancer is complicated. And so, it’s important I think to really be able to have a dialogue with your provider about what they’re recommending for you and why.

And I think there are often lots of options. And so, as much as you can make your doctor aware of what matters to you in terms of what side effects are you most afraid of or would you like most to avoid, what dosing schedules would be idea for your schedule for the rest of your life. So that you can deal with taking kids to school or the job that you’re currently working on or whatever, I think helps your doctor help you come up with the right regimen for you.

What is Metastatic Breast Cancer and How Is It Diagnosed?

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What is Metastatic Breast Cancer and How Is It Diagnosed? from Patient Empowerment Network on Vimeo.

Metastatic breast cancer (MBC) may progress differently than the earlier stages of breast cancer. Dr. Jane Lowe Meisel defines metastatic breast cancer and discusses key tests involved in an MBC diagnosis.

Jane Lowe Meisel, MD is an Associate Professor of Hematology and Medical Oncology at Winship Cancer Institute at Emory University. Learn more about Dr. Meisel here.

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Transcript:

Katherine:

This webinar is focused on metastatic disease, would you define metastatic breast cancer for us?

Dr. Meisel:

Absolutely. And I think metastatic breast cancer is one of those terms that as doctors, we throw around a lot and often times don’t stop to check understanding as to what that means.

And what metastatic breast cancer is and means, is breast cancer that is spread outside of the breast and surrounding lymph nodes to another organ system. So, metastatic breast cancer, some of the most common places where it spreads are to the bone, to the skin, to the lungs, to the liver, to the brain. There are other places it can spread to. I’ve seen it on the ovaries, in the GI tract. But basically, when breast cancer spreads outside of the breast and surrounding lymph nodes to another organ system, that’s when we consider it metastatic.

Katherine:

How can a patient ensure they are getting an accurate diagnosis?

Dr. Meisel:

Another good question. And I think the most important thing when you’re considering whether or not you have a diagnosis of metastatic breast cancer is to get a biopsy of that metastatic site. So, you wouldn’t want to assume, just based on a CT scan that shows something in the bone that you have metastatic disease. Ideally, we would biopsy that spot or some spot that was indicative of metastatic disease to actually prove that there is metastatic cancer in that distant site.

Because sometimes it’s nothing. Sometimes you get scans and a little bone abnormality, maybe a scar from a prior fall. And then also, sometimes if it is metastatic, sometimes the breast cancer, the hormone receptor status for example can change from the primary site to the metastatic site. And that might impact treatment. So, it’s important to both get a metastatic biopsy to confirm diagnosis. And also, to understand what the treatment plan might be. And I think also for patients, just to make sure that you understand what your stage is, ask your doctor.

Say, what is my stage? Because sometimes doctors think people understand and they don’t actually, so checking that understanding is important. But if your doctor or provider is not actively checking your understanding, you can check it with them to make sure that if you are metastatic or have Stage IV disease, which is another way we define metastatic or talk about metastatic cancer, that you make sure you have the definition right.

Katherine:

Right, right. So, once someone has been diagnosed with metastatic disease, are there key tests that’re used to help understand how their disease may behave and progress?

Dr. Meisel:

Absolutely. So, I think the first thing as I said is that metastatic biopsy. Another thing that’s very important is understanding the hormone receptor status and the HER2 status of the breast cancer. And probably for a lot of you listening, if you have listened to metastatic breast cancer webinars before or maybe know someone or have had a diagnosis yourself, you’re well versed in this. But for some who may not be, I think a quick overview is maybe helpful. Breast cancer can be divided into three different subtypes. So, triple-negative, estrogen-positive or HER2-positive. And estrogen-positive breast cancer is the most common kind.

That tends to be driven by hormones and often treated with what we call, endocrine therapy. So, anti-estrogen pills, things like Tamoxifen or aromatase inhibitors are examples of that. And that’s one kind. And then there’s HER2-positive breast cancer, which is a type of breast cancer that over expresses a marker called HER2. And we now, since we know about that marker, have been able to develop a lot of different treatments that target HER2 selectively.

And can be used to treat that subtype. And then triple-negative is basically estrogen-negative, progesterone-negative and HER2-negative. And that type of breast cancer traditionally was treated essentially only with chemotherapy. But now we’ve had some breakthroughs, which we’ll talk about I think later in this program talking about immunotherapy and more targeted therapy for that. But those subtypes help determine how we treat patients. And it also can sometimes predict behavior.

I would say one of the other things that helps us predict behavior of metastatic disease is, if a patient had early-stage disease before, how quickly they developed metastatic disease. So, for example, someone who develops estrogen-positive metastatic breast cancer 12 years out from their original diagnosis is statistically more likely to have a slower progressing course of disease than someone who develops triple-negative metastatic disease very soon after their initial treatment. So, I would say that’s the primary thing we look at in terms of determining treatment plan and then predicting overall course. 

Is the COVID-19 Vaccine Safe and Effective for Breast Cancer Patients?

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Is the COVID-19 Vaccine Safe and Effective for Breast Cancer Patients? from Patient Empowerment Network on Vimeo.

What do breast cancer patients need to know about COVID-19 vaccines? Dr. Jane Lowe Meisel offers her advice and perspective about COVID vaccines and precautions for breast cancer patient safety.

Jane Lowe Meisel, MD is an Associate Professor of Hematology and Medical Oncology at Winship Cancer Institute at Emory University. Learn more about Dr. Meisel here.

[Editor’s Note: On August 23, 2021, the U.S. Food and Drug Administration (FDA) approved the Pfizer-BioNTech COVID-19 Vaccine for individuals 16 years of age and older.]

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Transcript:

Katherine:

Let’s shift gears for a moment and talk about another time sensitive topic, COVID. Now that vaccines are available, are they safe and effective for breast cancer patients?

Dr. Meisel:

Yeah, I think the short answer to that is yes, absolutely. I’m encouraging all my patients, no matter what their treatment status is to go ahead and get vaccinated. And with the delta variant being more transmissible, I think it’s all the more time, even if you haven’t considered vaccination up until now, to really go ahead and strongly consider getting a vaccine.

I think some of the hesitations that some of the people have talked to me about is that there were not a lot of active cancer patients, if any, included in the initial trials. And whereas that is true, it’s still the case that now, so many cancer patients have been vaccinated. We haven’t really heard about adverse effects in vaccination being something that’s higher in patients who have cancer who are on active treatment. I think the one challenge is, if you have a compromised immune system because of cancer treatment, there’s the possibility that you might not mount the same immune response to the vaccine as someone who doesn’t have cancer or isn’t getting active treatment.

So, while I would say yes, definitely get vaccinated, I would also at the same time encourage caution in saying, because you might not mount the same, 95 percent or whatever immune response, it may still be a good idea to wear a mask when you go to the grocery store, taking those precautions because no one really knows what’s coming and it’s better to be safe than sorry. But I think we will get a lot of information as the months go on about, do we need boosters? Who might need boosters more soon than others and some of that will get clarified for us, but my short answer would be yes, vaccines for all.

Katherine:

Excellent, that’s very helpful.

Dr. Meisel:

Thank you.

What Metastatic Breast Cancer Patients Should Know About Treatment and Research

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What Metastatic Breast Cancer Patients Should Know About Treatment and Research from Patient Empowerment Network on Vimeo.

What do metastatic breast cancer patients need to know about treatment and research? Dr. Jane Lowe Meisel shares updates and recommends resources for staying abreast of research news.

Jane Lowe Meisel, MD is an Associate Professor of Hematology and Medical Oncology at Winship Cancer Institute at Emory University. Learn more about Dr. Meisel here.

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Transcript:

Katherine:

So, let’s start by discussing the latest developments in treatment and research updates. Are there recent developments you feel breast cancer patients should know about?

Dr. Meisel:

Absolutely and I think it’s really been such a remarkable time because even during COVID, a pandemic, where I think a lot of people worried that research efforts would shut down or stall. We’ve still seen the approval of a number of drugs in the past year that’ve really already markedly changed lives. And a lot of important findings that’ve come out of other trials that they have opportunity to do that as well.

I think some of the biggest information that was presented at our most recent large meeting, which was the American Society of Clinical Oncology, or ASCO National Meeting in 2021, were a few things that pertain to the metastatic breast cancer population. One was two studies, the PALOMA-3 Trial and the MONALEESA-3 Trial, which looked at a class of drugs called CDK4-6 inhibitors along with anti-estrogen pills in metastatic estrogen-positive breast cancer.

And really confirm for patients that not only do these drugs improve the amount of time that people can stay on treatment before their cancer progresses, but actually improve how long people live. Even when they’re used very, very early on in treatment, they impact survival down the line for many, many years. So, it really confirms for physicians like me that this class of drugs should be used as the standard of care and first line for patients with estrogen-positive stage IV breast cancer, and I think that’s important for patients to know. Along those lines, there’s a drug called sacituzumab govitecan, or Trodelvy, which is a much easier to say name.

Katherine:

Yes.

Dr. Meisel:

A new antibody drug conjugate in triple-negative metastatic breast cancer. And we’ve also seen, since this drug was approved last year, it has markedly changed the lives of many patients with triple negative disease. And the study called the ascent trial, which is what led to that drug’s approval was studied further and some of these additional results presented at ASCO this year.

And found that this drug not only improves again, how long people get before they have to move on to another treatment, but actually improves how long people live as well, even when given later on in the course of therapy. So again, really encouraging use especially in triple-negative metastatic disease, which is hard to treat. And I think another study that’s really worth patients and doctors taking a hard look at, was actually a study that looked at patient outcomes and patient experience. This is a study that actually talked with metastatic patients and gathered their views on treatment related adverse effects.

Talked to patients about what adverse effects they were experiencing from drugs. How they managed those adverse effects. And found that most patients, over 90 percent, will be willing to talk about reducing the dose of drugs or changing dosing schedules, in order to improve quality of life. And I think that’s really important because a lot of times, the doses of drugs that get approved are the doses that are the highest doses that don’t cause extreme toxicity. But sometimes people can have effective, really good outcomes on lower doses and have much better quality of life.

And in metastatic breast cancer where really the goal often times is to help people live as long as they can, but also as importantly, as well as they can, be able to have those open-ended conversations between patients and doctors about what’s really impacting your quality of life now and how can we make that better is important. And this study I think really highlighted that both for patients and physicians, how important that back and forth is to having a successful outcome. Both in terms of how life is lived, but in terms of quality of that life.

Katherine:

Right. Right. How can patients stay up to date on developing research?

Dr. Meisel:

It’s so interesting because there is so much coming out and I think it can be hard to figure out what Phase I study that looks exciting is really going to become something, versus what really could be important in my treatment today. And what I always tell people is actually, the NCI website. So, the national cancer institute, has a phenomenal page looking at advances in breast cancer research. So, if you Google NCI advances in breast cancer research, there’s a great page that comes up. And it’s impressively up to date and I think very patient friendly.

Breaks things down into early stage and metastatic and then in the metastatic section, talks about estrogen-positive, HER2-positive, triple-negative, which we can talk about more today but are the three big subtype of metastatic disease that dictate how we treat them. And then have links to all the different research updates and talk about what these drugs are, what the classes are and what the settings are in which they’re studies.

And so, I think that’s a really great first stop and then the links can take you to all different stuff that’s on the page that you might want to look into more in depth. And then also, the Breast Cancer Research Foundation, which is a phenomenal organization. They have a great website, too and if you click around on the website, you can see not only who they’ve donated money to that’s doing promising research, they also have podcasts, they have a blog with science and research news. I think that’s a really great site for patients to use to stay updated. 

Metastatic BC Research: How Can You Advocate for the Latest Treatment?

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Metastatic BC Research: How Can You Advocate for the Latest Treatment? from Patient Empowerment Network on Vimeo.

What do metastatic breast cancer patients need to know about the latest research news? Dr. Megan Kruse shares highlights from the 2020 San Antonio Breast Cancer Symposium (SABCS), along with her advice for advocating for the right testing to help guide treatment options.

Dr. Megan Kruse is a Breast Medical Oncologist at the Cleveland Clinic. More about this expert here.

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Transcript:

Dr. Kruse:                   

At this year’s San Antonio Breast Cancer Symposium, there were a few interesting presentations about the treatment of first-line metastatic triple-negative breast cancer that I think patients should be aware of.

Two of the presentations centered around trials that were presented in the past. Those reporting, patients reported outcomes from the IMpassion 130 study, which looked at chemotherapy for metastatic triple-negative disease plus the immunotherapy atezolizumab. And then, there was also an update on the results from the KEYNOTE-355 study, which was a study again of chemotherapy for metastatic triple-negative patients in combination with pembrolizumab, a different immunotherapy. And both of these studies showed that there was benefit for women in certain sub-groups of triple-negative breast cancer when looking at addition of immunotherapy.

And so, what I’d like to draw patients’ attention to with these presentations is that you have to be aware of if you fall into one of these categories so you know if you’re a candidate for the particular type of immunotherapy that can be added to chemotherapy. There are two different ways to test for if a patient is a candidate for immunotherapy and they are both tests that can be done on biopsies of metastatic or cancer recurrent sites in the body.

They can also be sent off of original breast cancer tumors. And what we now know is that for patients who do not have markers that suggest immune activation or where the immune system would be responsive to immunotherapy the addition of that extra therapy really does not help to improve cancer control over chemotherapy alone. And I think that’s a really important topic because everyone is very interested in immunotherapy, but it does have side effects of its own and it can actually be lasting side effects in terms of inflammation in organs like the liver, the colon, and the lungs.

And then, the third presentation that I’d like to bring up is the IPATunity study, which looked at the addition of a targeted therapy called ipatasertib to, again, chemotherapy for the first treatment of metastatic triple-negative disease.

And so, this is getting into an area of targeted therapy for metastatic triple-negative disease. And again, only looks at patients that have a particular marker that suggests sensitivity to this drug. And those are certain genetic markers, predominately changes in a DNA marker called PIK3CA. In this study, we actually found that there was no benefit for the targeted therapy added to chemotherapy for patients that had that genetic mutation, which was different than what was seen in earlier studies of the same combination. So, I think there’s more work to be done and it’s probably too early to say that this targeted therapy will not be used in treatment of metastatic breast cancer.

But what all of these research studies show together is that metastatic triple-negative cancer is not really just one disease. It’s very clear that within that one name, there are multiple different patient types and tumor types that need to be cared for differently.

And so, again, I think the theme from these abstracts and these research presentations is that we have to look into the right therapy for the right patient at the right time, which largely involved DNA-based testing.

So, when patients are thinking about their treatment options and how to best help with their providers about what treatment options exist for them, I think it’s important to recognize the type of testing that may be advantageous in your cancer type.

And so, for all metastatic breast cancer patients, we really recommend that they’ve had genetic testing to look for DNA changes like BRCA mutations that will lead to treatment options. For metastatic triple-negative disease, it’s important to make sure that you’re providers are testing for PDL1, which would make you a candidate for immunotherapy. And then, the more we learn about clinical trials, the more we have options for patients that have had drug-based DNA or genome-based testing. So, that’s an important term for patients to become familiar with is genomic testing.

And I think when you bring that up with your providers, they’ll know what you’re talking about and they’ll know that what you’re potentially interested in is new targeted therapy for the cancer that may either come in combination with chemotherapy or as a standalone treatment option. If you don’t have those options that are available, and FDA approved basis for regular routine patient care, there is always the option of clinical trials.

And so, if that is something that you’re interested in, genomic testing will often open the way. So, I think as you’re writing notes when you’re talking to your providers, you might wanna jot down whether or not you’ve had genetic testing and whether or not you’ve had genomic testing in the past, as both of those things will help potentially address all of your treatment options.

I’ve very hopeful about the research that is going to lead to new developments for breast cancer treatment in the next few years.

I think what we’ve seen both at this San Antonio Breast Cancer Symposium as well as other conferences in the recent past has been a lot of focus on finding the right treatment for the right patient at the right time. And so, patients seem to be very interested in finding out this information. They often come to clinic armed with the most recent data, which allows their providers to have really informed discussions about what the best treatment might be. And to talk about if the new treatments are not great right now, what treatments might look like in the future.

I think the other thing that’s encouraging about the research that we’ve seen presented at this conference is that some of these trials are very, very large. For example, the RxPONDER trial was a trial of over 9,000 patients. And I really think that’s amazing to get that many patients interested in research that may not directly impact their patient care but will impact the care of others moving forward.

It’s just a sign that our breast cancer patients are empowered, and they want to make a difference in the scientific community as a whole.

 

Breast Cancer Research News: SABCS Conference Highlights

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Breast Cancer Research News: SABCS Conference Highlights from Patient Empowerment Network on Vimeo. 

Expert Dr. Megan Kruse shares highlights from the 2020 San Antonio Breast Cancer Symposium (SABCS). Dr. Kruse provides an overview of what this news means for early stage breast cancer patients, along with her optimism about the future of breast cancer research and treatment.

Dr. Megan Kruse is a Breast Medical Oncologist at the Cleveland Clinic. More about this expert here.

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Transcript:

Dr. Kruse:                   

The San Antonio Breast Cancer Symposium is a national meeting with international presence that combines all of the latest data from research on breast cancer topics. It involves clinical research, basic science research, a lot of patient, and patient advocate support.

And the idea here is to bring together all the different disciplines that are involved in breast cancer patient care and do the best information and knowledge sharing that we can each year.

This year’s San Antonio Breast Cancer Symposium brought us a lot of interesting research focusing on early-stage breast cancer patients. I think the most important presentations that were given had to do with the treatment of high-risk lymph node-positive hormone receptor-positive breast cancer patients. And these were really across three abstracts. The first abstract of interest was the Monarch E study, which looked at high-risk women with hormone receptor-positive HER2-negative breast cancer and optimizing their medical therapy.

So, these patients are typically treated with anti-estrogen therapy and the idea of the research that was presented was if the addition of a targeted medication called abemaciclib or Verzenio could help to improve outcomes for women in this population. And what the trial found was that for women who took their anti-estrogen therapy for the usual length of time but added the abemaciclib for the first two years of that anti-estrogen therapy that there is actually an improvement in cancer-free survival time or an improvement in cure rates. And this was important because these women may not benefit from chemotherapy, as we’ll talk about in another abstract.

An addition research presentation that was given that goes alongside of the monarch E study was that of the Penelope B study. And the Penelope B took a similar population to what was studied in Monarch E. So, again high-risk women with lymph node-positive, hormone receptor-positive, HER2-negative breast cancer; however, in Penelope B, all of these patients had received pre-surgery chemotherapy.

And in order to qualify for the trial, the patients had to have some cancer that remained in the breast or the lymph nodes that was taken out at the time of their surgery. So, these are patients clearly in which chemotherapy did not do the whole job in terms of getting rid of the cancer. And again, the idea here was to add a second targeted therapy to the endocrine therapy to see if that would improve cancer-free time for patients in this population. The difference in this study was that the partner targeted therapy that was used was a drug called palbociclib or Ibrance.

And the drug was actually only used for one year in combination with endocrine therapy rather than two years as was used in the Monarch E study with abemaciclib. Interestingly enough, the Penelope B study was a negative study, meaning that it did not improve the cancer-free survival time for women who took the endocrine therapy plus targeted therapy compared to women who took the endocrine therapy alone.

So, I think that these are two interesting studies that one should look at together. And clearly, may impact what we do for the treatment of high-risk hormone receptor-positive women moving forward. The third abstract that I’d like to touch on that I think was important for women with early-stage breast cancer is the RxPONDER study, also known as SWOG 1007. And this study again was looking at lymph node-positive, hormone receptor-positive HER2-negative breast cancer patients and seeing if the addition of chemotherapy helped to improve their cancer-free survival compared to anti-estrogen therapy alone.

And so, in this study, while the study population was all women with early-stage breast cancer, meeting the one to three lymph node-positive criteria, you really have to break the results down into the results for pre-menopausal women and the results for post-menopausal women.

Because overall the study really showed no significant benefit to chemotherapy on top of endocrine therapy for women in this population; however, we did see that there was a clear benefit for women who were pre-menopausal. So, the women who had no benefit from chemotherapy were largely those who were post-menopausal, while those who were pre-menopausal derived extra benefit from chemo on top of anti-estrogen therapy. And that benefit depended on what the Oncotype recurrent score was.

With women that had the lowest of the recurrent scores having a chemo benefit of about three percent going up to over five percent for women who had Oncotype recurrent scores in the mid-teens to 25 range. In both of these groups, women who had Oncotype scores of 26 or above would have chemotherapy as per our standard of care.

So, I think that this abstract is important because in the past women who had lymph node-positive breast cancer generally received chemotherapy no matter what. More recently we’ve understood that not all of these cancers are created equal and that some cancers may not actually have benefit from chemotherapy in terms of improving cure rate. So, this study is a big step forward to help individualize and specify the treatment for women with lymph node-positive, hormone receptor-positive, HER2-negative early breast cancer.

I’ve very hopeful about the research that is going to lead to new developments for breast cancer treatment in the next few years.

I think what we’ve seen both at this San Antonio Breast Cancer Symposium as well as other conferences in the recent past has been a lot of focus on finding the right treatment for the right patient at the right time. And so, patients seem to be very interested in finding out this information. They often come to clinic armed with the most recent data, which allows their providers to have really informed discussions about what the best treatment might be. And to talk about if the new treatments are not great right now, what treatments might look like in the future.

I think the other thing that’s encouraging about the research that we’ve seen presented at this conference is that some of these trials are very, very large. For example, the RxPONDER trial was a trial of over 9,000 patients. And I really think that’s amazing to get that many patients interested in research that may not directly impact their patient care but will impact the care of others moving forward.                                   

It’s just a sign that our breast cancer patients are empowered, and they want to make a difference in the scientific community as a whole.

 

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.

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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.