Considerations That Help Guide Breast Cancer Treatment Decisions

Considerations That Help Guide Breast Cancer Treatment Decisions from Patient Empowerment Network on Vimeo.

What are key factors that help guide breast cancer treatment decisions? Expert Dr. Bhuvaneswari Ramaswamy explains what is considered and explains the significance of each factor.

Dr. Bhuvaneswari Ramaswamy is the Section Chief of Breast Medical Oncology and the Director of the Medical Oncology Fellowship Program in Breast Cancer at The Ohio State College of Medicine. Learn more about this expert here.

See More from Thrive Breast Cancer

Related Resources:

What Role Do Breast Cancer Patients Play in Care and Treatment Decisions?

Thriving With Breast Cancer Tools for Navigating Care and Treatment

Why Should Breast Cancer Patients Feel Empowered to Speak Up About Their Care?


Transcript:

Katherine:

Another key component of thriving is finding  a treatment that is right for your disease. What are the considerations that guide a treatment decision?

Dr. Waks:

Yeah, great question. So, what we just talked about,  the two things that are very important for us to make a decision, and that’s where we have come far in the last 20, 25 years, is because we are not just taking the staging.

That is anatomical staging, meaning what’s the size of your tumor and the lymph node involvement. We use those. That is important for us because that obviously changes the risk. The higher the stage, the higher risk of   recurrence. The higher the risk, we have to do more treatment to get a benefit, right? So, that’s one side. But what we have come to understand is biomarkers  are very important. That is biology of your tumor.

So, the grade, how quickly it’s proliferating although it’s not a biomarker, but it tells us a lot. And then the three important biomarkers we talked about ER, PR, and HER2. Those all are important for us to make a decision. In addition to that, we do something called a genomic testing called Oncotype  DX assay. There is also another test called   MammaPrint. These are genomic testing.

That is, we look at some of the genes that are up or downregulated in your tumor to decide whether you  are going to benefit for something called   chemotherapy or maybe just targeted therapies enough. So, these are some of the factors that we use to make a decision.

Now, do we use age and your performance status? Meaning how well you are? Do you have   comorbidities? Do you have bad diabetes? Do you have heart disease? Yes, they all go into that whole treatment decision, but the primary is made out of biomarkers and genomic testing and anatomic, and the rest are additional factors that go into our decision-making.

Katherine:

Yeah. What about metastatic disease? Are the considerations different when it comes to treatment?

Dr. Ramaswamy:

It is a little bit different because the first thing that we have to understand is when we are seeing them in stage I, stage II, stage III, which is stage IV is metastatic, stage II – we – our goal is a curator. We are trying to really throw the kitchen sink, although that’s really not what we do. We are trying to still be  tailored therapy, but we are trying to do everything we can to prevent a recurrence.

But now when you have a stage IV disease that is the cancer has   spread, that is the horses have left the  barn in the breast and has gone and settled in distant  organs and gone, our goal is to try to contain the disease. So, prevent further progression, prolong the  life and survival, and also improve quality of life. So, there are those consideration.

The biomarkers still go into consideration. We ensure we biopsy the metastatic site and look for those biomarkers. We do the genomic testing, gene sequencing of this. That will also help with our decision-making. We, of course, look for clinical trials because new novel therapies are always more important, but these are the other factors. And, of course, performance status that is how well you are,  how well your organs are functioning, and what’s your age, and how that affects your morbidity. All of those are also important.

What Questions Should Breast Cancer Patients Ask About Their Treatment Options?

What Questions Should Breast Cancer Patients Ask About Their Treatment
Options?
from Patient Empowerment Network on Vimeo.

What do breast cancer patients need to know about treatment options? Expert Dr. Bhuvaneswari Ramaswamy shares key questions that patients should ask their team about potential treatment approaches.

Dr. Bhuvaneswari Ramaswamy is the Section Chief of Breast Medical Oncology and the Director of the Medical Oncology Fellowship Program in Breast Cancer at The Ohio State College of Medicine. Learn more about this expert here.

See More from Thrive Breast Cancer

Related Resources:

Why Should Breast Cancer Patients Engage in Care Decisions?

How Is Metastatic Breast Cancer Treated?

What Are the Treatment Options for Early Stage Breast Cancer?


Transcript:

Katherine:

What questions should patients ask about their treatment options?

Dr. Waks:

I think the most important thing is to understand what you have first. So, kind of the doctor will talk to you about what type, histological type of breast cancer you have. They’ll also talk to you about what  biomarkers you have. And they will also talk to you  about the treatment options, which could be   chemotherapy versus target therapies, and what are the outcomes from those using clinical trials. So, I think the questions that you have to ask them is that,  what do you feel like you would is right for your body, right? That’s important. That what you have some of the preconceived notions that we all carry. That bias and preconceived notions is just a normal natural way of learning. And so ask about those fears, ask about those hopes that you have. And if your hope is, “Hey, can I do as well without chemotherapy?” Ask that question. So, and it’s important to understand the side effects and the outcomes of each therapy.

It may also be important for you if you do – you really don’t want to have treatments to understand if   you don’t get treatment, what are your outcome changes? So, those are, I think, the important thing. And then what that does mean to you? What do you want out of your life? Longevity, quality of life? How long will your quality of life be affected? And how does that impact your understanding of what you want out of your life? I think those are important for you to ask and make sure you have a friend or a relative with you so that not everything is going to go in at the first or the second visit, so you have someone else who’s taking notes.

Recent Advances in Treating Breast Cancer

Recent Advances in Treating Breast Cancer from Patient Empowerment Network on Vimeo.

What are the latest breast cancer treatment and research advances? Expert Dr. Bhuvaneswari Ramaswamy shares treatment updates for specific breast cancer types and discusses testing for circulating tumor DNA.

Dr. Bhuvaneswari Ramaswamy is the Section Chief of Breast Medical Oncology and the Director of the Medical Oncology Fellowship Program in Breast Cancer at The Ohio State College of Medicine. Learn more about this expert here.

See More from Thrive Breast Cancer

Related Resources:

Thriving With Breast Cancer Tools for Navigating Care and Treatment

Why Should Breast Cancer Patients Feel Empowered to Speak Up About Their Care?

What Role Do Breast Cancer Patients Play in Care and Treatment Decisions?


Transcript:

Katherine:

Are there emerging therapies that are showing promise?

Dr. Ramaswamy:  

Oh, my God. There’s just tremendous emerging therapies that are showing extraordinary progress. And I talk about this to my patients all the time. I mean, I tell them like two years ago say in a patient with – patient with metastatic disease, I’ll say, last year this drug wasn’t approved.

This drug is now approved for you to be given, and it shows extraordinary effect. So, every year we have new drugs getting approved, and we are also trying to get it used to be a little bit of a richness on the HER2-positive disease. And now we are seeing definitely a lot of richness on hormone receptor-positive disease. And I think we’re starting to see some new particular immunotherapy and other targeted therapies showing some response in triple-negative breast cancer.

Now, I know that’s a place that we still need to see more newer therapies, but overall, in the stage IV setting, we have really many options to keep them in good quality of life and longer. But people will ask, “Really, why do I even need to get to stage IV?” Really look at me and improve the curative setting. And that again, we are able to pick the higher risk patients, what me – what it means to have higher risk disease, how do we target them, newer drugs to target them. So, I think in so many ways we are doing better. And we are also getting to a place can we detect higher-risk patients, not just  by their initial diagnosis and response, but follow them sequentially by circulating tumor cells?

And we are getting to that place where we can actually do circulating tumor DNA, so just isolate the DNA, and we know what will belong to the tumor. And then circulating tumor cells seemingly even after your curative therapy. And so that is something that’s getting approved. And so we are not only seeing treatment, but we are also trying to see better detection of that reference. So, I think we are in so many ways, improving. And I am – I’ve been in this for 20 years, some of the things that thought was a dream is coming true. So, truly just keep living well and keep thriving. There are options.

Katherine:                     

Yeah. That’s, it’s positive.

Dr. Ramaswamy:          

Yes.

A Breast Cancer Expert’s Hope for the Future of Care

A Breast Cancer Expert’s Hope for the Future of Care/a> from Patient Empowerment Network on Vimeo.

Is the future of breast cancer care hopeful? Expert Dr. Bhuvaneswari Ramaswamy shares encouraging research advances and discusses specific areas in need of improvement for all breast cancer patients.

Dr. Bhuvaneswari Ramaswamy is the Section Chief of Breast Medical Oncology and the Director of the Medical Oncology Fellowship Program in Breast Cancer at The Ohio State College of Medicine. Learn more about this expert here.

See More from Thrive Breast Cancer

Related Resources:

What Role Do Breast Cancer Patients Play in Care and Treatment Decisions?

Thriving With Breast Cancer Tools for Navigating Care and Treatment

Why Should Breast Cancer Patients Feel Empowered to Speak Up About Their Care?


Transcript:

Katherine:

Well, to close out our conversation, Dr. Ramaswamy, I’d like to get your thoughts on where we stand with research progress. Are you hopeful?

Dr. Ramaswamy:   

Extraordinarily hopeful. I mean, and I say this like I even said before, some of the things I was skeptical about. I have to pull back my skepticism, which I’m very, very happy about. The role of immunotherapy starting to come into breast cancer, newer drugs, oh my God, therapeutics has improved our understanding of how to prevent these cancers. Picking up those high-risk patients, looking at these liquid biopsies, our understanding of genomics and precision oncology, I just have so much hopes. Management of brain mats with radiation treatments that are so targeted, improving, reducing, or mitigating the side effects with the treat – with the less treatments for those patients who have less risk. I mean, in every possible way, we are improving the way – what we are doing. Can we do better? Particularly in some areas I do want to bring it out. I think we still lag behind in health equity.

I think still a in African American patients with the breast cancer has a higher risk of dying from breast cancer. We haven’t really impacted it as well as we can do. I think understanding the ancestry, understanding the risk, understanding the lifestyle behaviors that increases the risk of these aggressive  cancers, say in African American women and in and those are very, very important. Prevention is so much better than cure, right? So, I think a little bit better of our understanding on prevention and the liquidity. Both access and understanding the biology and treatment. Improving our clinical trial approvals. We still only even in the best cancer centers, we only approve 25 percent of our patients, 15 to 25 percent of our patients into cancer clinical trials. And look at the changes we’ve had.

But imagine if we can put 50 percent of our patients on clinical trials, we’ll double the progress because without those clinical trials, none of these drugs can be approved.

Katherine:                     

Yeah.

Dr. Ramaswamy:          

So, what is today in a clinical trial is what is a tomorrow-approved drug. So, our understanding and talking about that becomes very very important for us. And then I think lastly, there are some breast cancers like invasive lobular cancers that are only 15 percent that we still don’t understand as well. And so there are some more little pockets that   I think we still need to understand. Male breast cancers are slightly starting to increase. We need to improve. So, there are areas we can do better, but overall, it’s absolute promising and very, very happy today. Our research is going really well, so, and it’s impacting patients’ outcomes.

What Are the Treatment Options for Early Stage Breast Cancer?

What Are the Treatment Options for Early Stage Breast Cancer? from Patient Empowerment Network on Vimeo.

Breast cancer expert Dr. Adrienne Waks reviews available treatment approaches for patients with early stage breast cancer and explains the role of sub types when choosing a treatment plan.

Dr. Adrienne Waks is the Associate Director of Clinical Research at Dana-Farber Cancer Institute. To learn more about Dr. Waks click, here.

See More from Thrive Breast Cancer

Related Resources:

What Role Do Breast Cancer Patients Play in Care and Treatment Decisions?

Key Questions Patients Should Ask Before Participating in a Breast Cancer Clinical Trial

How Is Metastatic Breast Cancer Treated?


Transcript:

Katherine:

Well, let’s get into the specific treatment options that are available for breast cancer patients. Could you tell us about those?  

Dr. Waks:

So, fortunately, the answer to that question is enormous, because we have so many effective treatment options in breast cancer and generally our patients do very well in the long term when they are diagnosed with early stage breast cancer, so stage I or II or III breast cancer.  

That might involve the breast, it might involve the lymph nodes under the arm, but it hasn’t traveled anywhere else in the body. So I’ll set aside metastatic breast cancer and just talk about stage I, II, and III. 

So, as you may know, we think about as medical oncologists we completely separate treatment considerations for three different subtypes of breast cancer. Those are hormone receptor-positive, HER2-positive and then triple-negative. So, again, highlighting just important developments and not really the overall treatment planning for each of those subtypes, in ER-positive disease or estrogen receptor-positive disease hormonally-driven, estrogen-driven breast cancer – those are all sort of terms for the same thing, I think there have been a couple of important developments over the last few years.  

Probably the most important recent one is the new understanding and demonstration that the CDK4/6 inhibitor abemaciclib, the brand name of that drug is Verzenio. 

That drug when we administer it for two years after a patient has had their surgery and in conjunction with alongside the antiestrogen medicines; the antiestrogen medicines are usually done for a minimum of five years, when we add on to that the CDK4/6 inhibitor abemaciclib, we see that for women with higher risk disease, so maybe some lymph node involvement or a large tumor in the breast or both that the addition of the Verzenio, the abemaciclib seems to decrease their risk of recurrence of breast cancer a couple of years out. So, that’s been an important exciting development. 

Again, not for all women within early stage estrogen-driven breast cancer, but for a little bit more advanced early stage disease like lymph node involvement. You know, we’re obviously always looking for ways to reduce that risk of recurrence for women who have a little bit more risk at diagnosis and the addition of abemaciclib was an exciting and welcome addition to our toolkit there. 

In HER2-positive disease, which is about 20 percent of breast cancers overall, I think what the recent years have brought us is increasing understanding that in many cases we give women too much chemotherapy and that we need to be – so, here it’s less about adding on. Like the Verzenio example I was just talking about and more about individualizing and figuring out in whom and how we can pull back from sort of the kitchen sink approach that we take often to treating a HER2-positive early stage breast cancer and be more thoughtful and more personalized in the amount of treatment that we give women with HER2-positive breast cancer. 

The reason for that is that we’re basically 20 years into understanding that for HER2-positive breast cancers we can treat those cancers very effectively with anti-HER2 antibody drugs like trastuzumab or Herceptin. We didn’t even know that until 20 years ago. And so, Herceptin, trastuzumab and similar drugs have really revolutionized how effectively we can treat women with HER2-positive breast cancers. And so, at this point, it’s becoming more and more clear that we can really lean more on our arsenal of anti-HER2 targeted therapies like Trastuzumab. Pertuzumab (Perjeta) is another one and trastuzumab MTNC and TDM1 is another one. 

So, we have all these excellent smart targeted treatments for women with HER2-positive disease, but yet the standard of care is still to give all those good rational targeted treatments with a whole bunch of chemotherapy that comes with a lot of side effects. 

I think more and more we’re figuring out that we can lean more on our anti-HER2 treatments and require less of the really side effect heavy chemotherapy, but how do we do that thoughtfully? We obviously don’t want to undertreat anybody, so how do we do that thoughtfully? How do we pick out the women who only need the anti-HER2 treatment and can get away with less chemotherapy. I think that’s really what’s exciting in HER2-positive early stage breast cancer right is how do we individualize and take advantage of targeted agents that we have? 

And then finally, in the third subtype of breast cancer which is triple-negative breast cancer which accounts for about 10 percent of breast cancers, the most exciting development there clearly in the last year or so is the realization and the demonstration in randomized clinical trial that we can improve outcomes for those women if we give them not just chemotherapy but also chemotherapy combined with immunotherapy and specifically the immunotherapy agent called pembrolizumab or Keytruda. 

So, up until a year or two ago, the standard for a stage I or II or III triple-negative breast cancer was to get a multiagent chemo regimen and chemo was really the only type of option we had to treat those triple-negative breast cancer patients and now we know from a major important clinical trial called Keynote 522, that if we take a standard chemo backbone and add Pembrolizumab immunotherapy onto it, that we can help those women do better in the long term. So, that’s really a pretty new in the last one or two years standard of care for triple-negative breast cancer. 

And I guess the last thing I’ll say is not about one of those three subtypes of breast cancer but specifically for women with a BRCA1 or BRCA2 mutation associated with their breast cancer, which is a minority. It’s about 5 percent of breast cancer patients. Obviously, the proportion changes depending on your subtype of breast cancer and your age when you’re diagnosed, but for women who have a breast cancer associated with BRCA1 or 2 mutation and have a higher risk or early stage breast cancer. 

So, again, they have a number of lymph nodes involved or a big tumor in the breast or something like that, we now know that we can add on one year of the PARP inhibitor medication called olaparib or Lynparza to the postoperative treatment of those breast cancer patients in addition to whatever other treatment they got; the antiestrogen pills, the chemotherapy, or a combination of those two, and with the addition of olaparib or Lynparza for a year that we can again see better long-term outcomes for those patients and help them avoid recurrences. 

So, that’s not a majority of breast cancer patients but is a targeted treatment that we’re very excited about that definitely makes an important contribution to reducing risk for women with a BRCA1- or BRCA2-associated cancer or men for that matter. I’m saying women, but it could absolutely apply to men. 

How Is Metastatic Breast Cancer Treated?

How Is Metastatic Breast Cancer Treated? from Patient Empowerment Network on Vimeo

Breast cancer expert Dr. Adrienne Waks discusses treatment approaches for metastatic breast cancer and explains how research is evolving.

Dr. Adrienne Waks is the Associate Director of Clinical Research at Dana-Farber Cancer Institute. To learn more about Dr. Waks click, here.

See More from Thrive Breast Cancer

Related Resources:

What Role Do Breast Cancer Patients Play in Care and Treatment Decisions?

Key Questions Patients Should Ask Before Participating in a Breast Cancer Clinical Trial

What Are the Treatment Options for Early Stage Breast Cancer?


Transcript:

Katherine:

What about people who have metastatic disease? What treatment advances are available for them?  

Dr. Waks:

Yeah. You know, I think that’s an incredibly important question and a totally different set of discussions than we have with women with early stage breast cancer and unfortunately and unacceptably at this point for a woman diagnosed with metastatic breast cancer still typically that can become a life-threatening diagnosis. 

So, it’s exceptionally important that we rapidly improve the treatment options that we have for women with metastatic breast cancer. Maybe everybody says this every year, but I think that this year, 2022, has been a particularly exciting year in terms of advances that we’re making in the treatment of metastatic breast cancer, really of all subtypes. I would say the most exciting class of drugs or type of drugs that’s coming out in breast cancer and in all malignancies honestly, is called antibody drug conjugates, which is to say an antibody. So, a molecule that’s targeted to some particular approaching on a cancer cell surface and then is attached to or conjugated to a chemotherapy molecule.  

So, the antibody is like a smart delivery system directly to the cancer cell for what’s call a payload, basically like a sort of action molecule or the killer molecule, which is the chemotherapy. 

Those kinds of antibody drug conjugants have made a huge impact in recent years in improving outcomes for women really with all subtypes of breast cancer, so that drug class I think is a very exciting one to watch in general. In terms of specific recent developments in metastatic breast cancer, so probably the biggest blockbuster development over the past year and really over just the past three months is the understanding that we can break out a subtype of metastatic breast cancer that we really didn’t even talk about before which is called HER2-low breast cancer. So, before if you asked me in May of 2022, there really were only two types of HER2 readouts for a breast cancer tumor. 

There was a HER2-negative breast cancer tumor and there was a HER2-positive breast cancer tumor and as I already told you, the HER2-positive accounts for about 20 percent of breast cancers overall. The other 80 percent are HER2-negative. And so, historically, again you asked me three months ago I would have said if you’re HER2-positive and that 20 percent will give you these different HER2-directed treatments and if you’re not, we can’t use those. And what’s changed is that we’ve developed new antibody drug conjugants. So, drugs that are targeted against in this case the protein HER2 that seem to be so effective and work so well, that you don’t truly have to be HER2-positive.  

You can be HER2-low and still benefit from these treatments, which is to say your cancer has a little bit of HER2 protein on the surface of the breast cancer cells but not a lot. So, not enough to make it positive but enough to make it low in its designation. 

That’s actually a large proportion of breast cancer patients. It’s over 50 percent of breast cancer patients, so it’s significantly more than HER2-positive, so a large proportion of breast cancer patients actually fit into this new category called HER2-low and we now know from data that were presented in June of 2022 and then published in the New England Journal of Medicine, which is our biggest most high profile academic medical journal, we know that for patients who fall into that HER2-low category, again that’s more than 50 percent of breast cancer patients, that they can, if they have a metastatic breast cancer, benefit from this new antibody drug conjugate called trastuzumab deruxtecan (Enhertu).  

When it was compared to the existing chemo options we have for those patients which do have some efficacy but nonetheless, when trastuzumab deruxtecan was compared to the existing chemo options, it clearly looked better for patients with HER2-low breast cancer. So, that was not just an exciting advance in terms of new treatment options which we always love to be able to offer to patients but also in terms of breaking out this entirely new designation and subcategory that captures more than half of our metastatic breast cancer patients and helping us to offer them something new and hopefully will be a pathway for other drugs to be developed in this space and for this new subcategory. 

So, that was very exciting. I’ve been talking about it with patients all the time in the past just three months since those data came out.  

You know, a second antibody drug conjugate that has also been very exciting in recent months and recent years is called sacituzumab govitecan which Trodelvy is the brand name of that one. That’s an antibody drug conjugate that’s targeted against a different protein on the cell surface that’s targeted against the protein Trop-2, so that’s where the Trodelvy comes from. It’s targeting Trop-2. That’s an antibody drug conjugate that we’ve known for probably three or more years now can be very effective in triple-negative metastatic breast cancer. So, we’ve had that option for a number of years in metastatic triple-negative breast cancer. 

But again, just in the past few months have gotten good and exciting data that this Trodelvy or sacituzumab drug also works in estrogen-driven breast cancers.  

And so, it’s giving another option to patients with not just triple-negative but also estrogen-driven breast cancer. So, that was another very recent development just in the last three months or so. 

Katherine:

That’s really exciting.