Tag Archive for: BCL-2 inhibitors

What Promising AML Treatments Are Available for Newly Diagnosed Patients?

What Promising AML Treatments Are Available for Newly Diagnosed Patients? from Patient Empowerment Network on Vimeo.

What do newly diagnosed acute myeloid leukemia (AML) patients have for promising treatment options? Dr. Naval Daver from the University of Texas MD Anderson Cancer Center discusses progress in available treatments. Learn about therapies determined by key factors.

[ACT]IVATION TIP from Dr. Daver: “It’s very important to really consider all the available treatment options and if needed to seek consultation with an expert or academic center to get the most up-to-date treatments available for AML.

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Transcript: 

Art:

Dr. Daver, for newly diagnosed AML patients, what are the latest and most promising available therapies?

For newly diagnosed AML at this time, the most promising agents include targeted therapies and BCL-2 inhibitor treatments, these are non-chemotherapeutic drugs, and we’ve seen great progress in the application of these as well as recent FDA approvals.

So one of these is an agent called venetoclax (Venclexta), which is a BCL-2 inhibitor and venetoclax in combination with hypomethylating agents such as azacitidine (Onureg or Vidaza) has shown a response to close to 75 percent. 

And the nice thing is that this regimen can be given and patients who are older than 70, 75 years of age, and even those who are having comorbidities are not fit for traditional intensive chemotherapy with similar response rates, so this has been approved in the last couple of years for the frontline treatment of AML, and we’ve been using this combination of venetoclax and azacitidine quite frequently with high efficacy in this patient population, the other new agents that have shown breakthroughs in AML are the targeted therapies, these include FLT3 inhibitors that target the FLT3 mutation and these have shown good activity, but the single agents with gilteritinib (Xospata) being approved in the relapsed refractory setting as a single agent where gilteritinib showed a response rate of about 50 percent as a single oral targeted therapy in relapsed FLT3-mutated AML, which is actually better than the response rate with high-dose combination more where the response rate is only about 25 to 30 percent.

So, gilteritinib is now approved, and it’s now moving and being evaluated in frontline setting other FLT3 inhibitors like lestaurtinib (CEP-701), actually just recently completed frontline studies showing improved outcome when lestaurtinib added to intensive chemo versus just intensive chemo in FLT3 in AML. And we hope and think there’s a good chance lestaurtinib will be approved in the near future.

And also IDH inhibitors have been approved both in the relapsed setting, frontline setting, and now we even have a third group of targeted therapy is called the menin inhibitors, they target MLL rearrangement and NPM1 mutations, which are seen in about 15 percent to 20 percent of the AML, so there’s been a lot of progress.

All of this in the last seven years, six, seven years with multiple targeted therapies, with multiple inhibitor-based treatments, showing progress in AML and then also recently, the concept of maintenance therapy, this is something we used for the last couple of decades in a acute lymphoblastic leukemia and multiple myeloma and in lymphoma.

But we had not had clear data in AML, but the recent study using oral formulation of a azacitidine in CC486 has shown the maintenance in patients who complete an induction consolidation and could not go to allogeneic stem cell transplant for one reason or the other was important and improve both overall survival and relapse-free survival, and so this is the first time now we have an FDA-approved and standard use of maintenance therapy after the traditional induction consolidation, so even changing the general paradigm of AML therapy.

So a lot has changed in the last seven to eight years in the treatment of acute myeloid leukemia, and this is very exciting.

And the activation tip related, this question is that there are multiple new targeted and low intensity therapeutic options available for patients with acute myeloid leukemia, and in our institution, in my opinion, even older patients are eligible for some form of therapy or the other…very few patients, if any, today, are being sent to hospitals or palliative care without treatment.

So it’s very important to really consider all the available treatment options and if needed to seek consultation with an expert or academic center to get the most up-to-date treatments available for AML. 

Developing CLL Research and Treatment News

Developing CLL Research and Treatment News from Patient Empowerment Network on Vimeo.

CLL expert Dr. Michael Choi provides his perspective on the goals of current CLL clinical trials, discusses approved inhibitor treatments, and shares credible resources to keep up with the latest news in research.

Dr. Michael Choi is a hematologist and medical oncologist at UC San Diego Moores Cancer Center. Learn more about Dr. Choi. 

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Transcript:

Laura Beth:

Dr. Choi, are there recent advances in CLL treatment and research that you are excited about?  

Dr. Choi:

There’s certainly a lot to be excited about as far as new treatments or new understanding of our treatments. What I see as kind of two main aims of trials right now for our patients with CLL, one is to figure out the optimal way to treat patients, especially in the first line of treatment.  

For the past few years, we’ve had two very clear options, two very clear standards, a BTK inhibitor or the combination of venetoclax and a CD20 antibody. And so, right now, there are a couple of trials both in the states and internationally that are for the first time really comparing those head-to-head. At UCSD, we’re eagerly hoping to join one of those trials as well, and so this will help us and help our patients kind of really know which of those options make the most sense for maybe different subgroups of patients.  

I guess the other main emphasis is to have new therapies available to patients in case these existing standards stop working. And fortunately, this is not a common occurrence. Resistance to BTK inhibitors and Bcl-2 inhibitors is not common, fortunately. But we have to be ready with something if that does occur for our patients.  

Certainly, there’s a lot of enthusiasm for the next generation of BTK inhibitors, cellular therapies like CAR-T therapy, and other classes of medications. So, while I hope most of my patients never need those drugs or never need those trials, I think it’s important that we have those available.  

Laura Beth:

How can patients keep up to date on developing CLL research?  

Dr. Choi:

Oh, that’s a great question. I guess I sometimes ask that same question of myself. How can I stay updated on all the developments and discoveries. Yeah, I guess, yeah, certainly talking to your doctors about what other options there may be. Sometimes, that’s maybe the simplest question to ask.

Yeah, I wish online things were a little bit more straightforward. When I go onto clinicaltrials.gov, I pull up hundreds of different CLL trials, some that might not be relevant for all of my patients. I think The Leukemia & Lymphoma Society and other societies and your group as well have done a great job communicating what some of the most promising areas of research are.  

How Are CLL Patients Monitored After a Clinical Trial Concludes?

How Are CLL Patients Monitored After a Clinical Trial Concludes? from Patient Empowerment Network on Vimeo.

What happens after a clinical trial is complete? CLL expert Dr. Michael Choi explains how participants are monitored during clinical trial follow-up.

Dr. Michael Choi is a hematologist and medical oncologist at UC San Diego Moores Cancer Center. More information on Dr. Choi here. 

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Transcript:

Laura Beth:

Is there follow-up that’s done after a trial concludes? 

Dr. Choi:

Oh, good question. Yeah.  

Yeah, trials are kind of – let me say what – yeah, when a patient goes through a trial, there can be a sense that the trial concludes, perhaps when the treatment is done or at a certain point when a response assessment is made, but oftentimes, it’s important to also continue to monitor patients after those milestones.

Certainly, for some of our drugs, the treatment continues long-term, so even after some statement has been made about a response rate, many patients remain on treatment, and it’s certainly important to see if there are any long-term side effects or any other developments after the end of that initial period.  

 Other treatments, the trial – the treatment may end. An example might be these trials that combine BTK inhibitors and Bcl-2 inhibitors that are typically for a year-and-a-half or so.   

And certainly, for those trials, it’s definitely critical for patients to be followed as part of the trial so that we can get a good sense of how long those remissions are lasting. Also, of course, to see if there are any delayed or long-term toxicities. So, yeah, so oftentimes, being a part of a trial means being followed, being monitored for some time afterwards.  

Three Main Treatment Approaches for CLL Patients

What are the main treatment approaches for Chronic Lymphocytic Leukemia (CLL) patients? In the “CLL Treatment Approaches: What Are the Types?” program, expert Dr. Catherine Coombs from The UNC Lineberger Comprehensive Cancer Center outlines CLL treatment options and patients they may work best for.

1. BTK Inhibitor Targeted Therapy

The CLL treatment approach of BTK inhibitors work against the function of Bruton’s tyrosine kinase protein. Bruton’s tyrosine kinase – or BTK – is involved in signaling processes in both cancerous and healthy B cells, and BTK inhibitors exert against B cells to prevent cancer growth. Acalabrutinib (Calquence) and ibrutinib (Imbruvica) are two BTK inhibitors currently approved for CLL treatment. In general, patients are kept on BTK inhibitors if they are working well and with minimal side effects, as BTK inhibitors generally work extremely well against controlling CLL over time. Due to their success over time, BTK inhibitors are an excellent treatment option for more elderly patients. 

2. BCL-2 Inhibitor Targeted Therapy

Another CLL treatment approach is BCL-2 inhibitors, which work against the pathway that lies within CLL cells. The process of CLL cell death and BCL-2 inhibitors create is called apoptosis. The drug that falls under the category of BCL-2 inhibitors for CLL treatment is venetoclax (Venclexta). An anti-CD20 drug – such as obinutuzumab (Gazyva) – is usually combined with venetoclax to work as a team to kill CLL cells. BCL-2 inhibitors are designed as a shorter term therapy to get patients to remission status, and then they can go off the treatment for regular monitoring after they achieve remission.

3. Cytotoxic Chemotherapy

Though targeted therapies comprise the majority of CLL treatment for patients, cytotoxic chemotherapy is used for some patients. Although cytotoxic chemotherapy is effective, this therapy also has the drawbacks of being less effective than targeted therapies and can cause long-term toxicities in patients. 

CLL patients have different treatment options depending on age, lifestyle, and other treatment factors. If you want to learn more about CLL care and treatments, check out our CLL information.

What Are the Current CLL Treatment Options?

What Are the Current CLL Treatment Options? from Patient Empowerment Network on Vimeo.

When is it time to treat CLL, and what are the current options? Dr. Jean Koff, from the Winship Cancer Institute of Emory University, reviews available CLL treatment approaches and discusses patient-specific factors that she considers when choosing therapy.

Dr. Jean Koff is an Assistant Professor in the Department of Hematology and Oncology at Winship Cancer Institute of Emory University. Learn more about Dr. Koff, here.

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Transcript:

Katherine Banwell:

Many patients are overwhelmed by the different types and classes of treatment. When is it time to treat CLL, and what are the options? 

Dr. Jean Koff:

So, I boil down the criteria to when you need to treat your CLL to two main categories. One category is that the disease is progressing quickly, and the other category is the disease is causing problems of some kind, or getting ready to cause problems of some kind. Those are some of the broad categories that we think about when it’s time to start treatment for CLL. Now, this – the groups that research CLL have put out various criteria that help guide physicians about when it’s time to start treatment, and some of those more specific criteria include items like symptoms. So, symptoms are a very important part of that decision-making process.   

And the same symptoms that we mentioned, the B symptoms, fevers, chills, night sweats, weight loss that’s unintentional, or lymph nodes that you can feel, those would potentially be reasons that your doctor would want to start you on CLL therapy. But the CLL can cause issues even in a patient who’s not necessarily having symptoms. So, one of the most common ways that CLL can cause issues is the CLL cells can cause your other blood cells, the normal blood cells, to be low in number. There are several ways the CLL cells can do this. One of the most common ways is that the CLL cells, which are often circulating through your bloodstream, can also collect or overrun your bone marrow.  

And if you think about it, the bone marrow is the factory that makes all of your blood cells. So, when there are too many CLL cells in the bone marrow, they can crowd out the normal blood cells, like red blood cells or platelets. So, when red blood cells or platelets get low beneath certain thresholds, that’s a reason to start CLL therapy. 

Katherine Banwell:

Mm-hmm.   

Dr. Jean Koff:

So, there are a couple other criteria that we think about. CLL cells can collect in other areas, including the spleen. So – and if you remember, the spleen is a lymphoid organ that sits on the left side of your body that is right below the stomach. And so, if CLL cells collect in the spleen, they can cause it to be too big, it can press on the stomach, it can make it so you feel full, even if you haven’t eaten a full meal, that’s something we call early satiety. It can be uncomfortable, causing some abdominal pain. And if the spleen gets really, really big, it can cause it to not be able to do its normal job, which is to filter out the normal blood cells like it does every day. And so, that would be a reason to start therapy as well. And then the last – the last category I would think about is in CLL we have lots of – of CLL cells that are circulating in the blood that we can check with a routine blood count. And the absolute number of CLL cells is not as important as how fast that number is growing. So, your physician will track how fast that number of CLL cells is doubling.  

And if you meet criteria for what we call rapid doubling time, which is usually thought of as less than 12 months but certainly less than six months. So, if your count goes from 30,000 to 60,000 in under six months, then it may be time for you to start thinking about therapy. 

Katherine Banwell:

Right. So, Dr. Koff, would you briefly review the treatment classes? 

Dr. Jean Koff:

So, for first-line treatment, we have two main treatment classes that we think about at this time. The first is – is called BTK inhibitors, which is Bruton tyrosine kinase inhibitors. And these are oral medications, so medications that you take by mouth, and the most well-studied of these is called ibrutinib (Imbruvica), we typically prescribe ibrutinib by itself. There are other BTK inhibitors we are also now using in this space, one of them is called acalabrutinib  (Calquence), and that is often given with an IV monoclonal antibody called obinutuzumab (Gazyva).   

The other main class of drugs that we consider for first-line treatment of CLL is the BCL-2 inhibitors. Right now there’s only one BCL-2 inhibitor that’s approved for CLL and front-line and it’s called venetoclax (Venclexta). Usually, this drug is also given in the front-line with an anti-CD20 monoclonal antibody. So, the venetoclax itself is a pill you take. And the monoclonal antibody is an – either an IV or a subcutaneous injection.  

Katherine Banwell:

Where do clinical trials fit into CLL treatment? 

Dr. Jean Koff:

So, clinical trials are part of the reason, a big part of the reason that we’ve been able to make so much progress in how we treat CLL over the past few years. Clinical trials are how we figure out what treatments work for CLL, how patients feel on them, what sort of adverse events or side effects they have on individual treatments, and which treatments do better for keeping CLL symptoms under control, keeping the disease under control, and allowing patients to live longer and have a higher quality of life with their disease.   

Katherine Banwell:

Are there any other options available for CLL patients?  

Dr. Jean Koff:

So, there are other options. A clinical trial, if that is available to you as a patient is nearly always a good thing to consider if you have CLL. Because the vast majority of patients will not be cured by CL – by their treatment for CLL. Meaning that the – even though the treatments we have usually work for a very long time in most patients, ultimately the CLL will at some point, perhaps years down the road, progress and need another therapy. For that reason, we know we can do better. And we are hoping that the next  clinical trial is going to lead to the discovery of a new agent or a new combination – new  combinations of agents that will allow patients to live longer with a better quality of life with CLL.  

Katherine Banwell:

Mm-hmm. 

Dr. Jean Koff:

So, that’s always a good option to consider.  

Emerging Waldenström Macroglobulinemia Treatment Approaches

Emerging Waldenström Macroglobulinemia Treatment Approaches from Patient Empowerment Network on Vimeo.

What Waldenström macroglobulinemia (WM) therapies are showing promise? Dr. Jorge Castillo of the Dana-Farber Cancer Institute discusses emerging research and advances in WM treatment.

Dr. Jorge Castillo is Clinical Director at the Bing Center for Waldenström Macroglobulinemia Dana-Farber Cancer Institute and Assistant Professor of Medicine at Harvard Medical School. Learn more about Dr. Castillo, here.

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Transcript:

Katherine:                  

Dr. Castillo, are there emerging approaches for treating Waldenstrom’s?

Dr. Castillo:               

Always. And that’s the beauty – that’s the second part of when we talked about clinical trials, right, we talked about clinical trials? Science continues, and we work very closely with an organization called the International Waldenstrom’s Foundation, and they support research all over the world for Waldenstrom’s.

So, their message is since the sun comes up until the sun comes down, there is someone, somewhere in the world working on Waldenstrom’s, and that’s true.

So, there’s a lot of science in the background, and that science helps us understand how the Waldenstrom’s cells behave, and therefore, we can then start targeting some things. That’s how BTK inhibitors came out. That’s how proteasome inhibitors came out. That’s how BCL-2 inhibitors came out. All these are the result of science, applied into the treatments. So, at my institution and many other institutions in the country and outside of the country, there are newer treatments being tried all the time.

We have now – we are looking into combining BTK inhibitors with other agents. Germany is doing a number of different studies. Canada is doing a number of different studies. We are doing some studies in the United States as well, combining chemotherapy and PIs with the BTK inhibitors. We’re doing a study in my institution combining BTK inhibitors with BCL-2 inhibitors. So, and the idea is to try to create a more powerful agent or regimen and hopefully maybe not give patients indefinite treatments, more like fixed duration treatments.

So, I think that’s where it’s coming. It’s coming maybe double, triple combinations, fixed duration treatments. That’s what is coming in terms of that aspect of the research. And then, we do have newer compounds coming out.

We do have now some concepts in what we call immunotherapy, right? We think about antibodies.

We think about bispecific T-cell engagers. CAR-T cells, so all that is actually up and coming in Waldenstrom’s. There are actual clinical trials being done today evaluating all those different treatments for patients with Waldenstrom’s.

So, I think the future is really bright. I’m really optimistic, to be honest with you about the treatment of patients with Waldenstrom’s. Obviously, what we need, what we want, is cure of the disease. And again, we can think about cure in two different ways. We can think about the classic definition of cure in which we treat patients, the disease goes away, you stop treatments, and the disease never comes back, right? That’s one way of looking at cure.

The other way of looking at cure is you treat the disease, the disease is in a remission, you continue treating the patient, and then the patient basically dies of other reasons, right? That is a functional cure. So, I think we’re closer to the latter, much more than the former, but the efforts to continue developing new treatments, it’s not stopping anytime soon.

Katherine:                  

No, because we’re always constantly moving forward, having to find new treatments, definitely.

Which Tests Do You Need Before Deciding on an AML Treatment Path?

Which Tests Do You Need Before Deciding on an AML Treatment Path? from Patient Empowerment Network on Vimeo.

 Why is it important to ask about biomarker testing for your AML? Find out how test results could reveal more about your AML and may help determine the most effective treatment approach for your individual disease.

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Transcript:

Why do you need biomarker testing before deciding on a treatment plan for your acute myeloid leukemia—also known as AML?

The results may predict how your AML will behave and could indicate that one type of treatment may be more effective than another.

Biomarker testing—also referred to as risk stratification, genetic testing, or molecular testing—identifies specific gene mutations, proteins, chromosomal abnormalities and/or other molecular changes that are unique to your AML.

The results of these tests are used to determine if you have low-risk or high-risk AML to help guide prognosis and to evaluate the goals of treatment.

There are certain biomarkers—such as the FLT3, IDH1 and IDH2 mutations—that could indicate that your AML may respond well to a targeted therapy. There are several FDA-approved targeted therapies—known as inhibitor therapies—which treat patients with these mutations.

Additionally, the identification of other biomarkers—such as TP53, NPM1, or CEBPA mutations, to name a few—may aid in assessing your prognosis, determining a treatment course, or may identify if an allogeneic stem cell transplant may be appropriate. Results of these tests may also suggest that a clinical trial is your best treatment option.

So, how can you Insist on the best care for YOUR AML?

• First, always bring a friend or a loved one to your appointments to help you process information and to take notes.

• Ask your doctor if you have had, or will receive, biomarker testing and how the results may impact your care and treatment plan. Be sure to ask for paper or electronic copies of your important test results.

• Finally, always speak up and ask questions. It’s important that you understand all of the information that you want to know about your AML to help make the best treatment decisions for you. You are your own best advocate, and treating AML is a team approach.

To learn more about your AML and to access tools for self-advocacy, visit powerfulpatients.org/AML

How Is AML Treatment Effectiveness Monitored?

How Is AML Treatment Effectiveness Monitored? from Patient Empowerment Network on Vimeo.

How can acute myeloid leukemia (AML) treatment effectiveness be monitored over time? Expert Dr. Ellen Ritchie explains when testing is typically done following AML treatment, which methods are used for monitoring, and when retesting may be appropriate.

Dr. Ellen K. Ritchie is assistant professor of medicine and a member of the Leukemia Program at the Weill Cornell Medical College of Cornell University and the New York Presbyterian Hospital. More about Dr. Ritchie, here.

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Transcript:

Katherine:

Once a patient has begun treatment, how do you monitor whether it’s working?

Dr. Ritchie:

So, one of the more frustrating things about being an AML patient, is you don’t know right off the bat whether or not that you have gone into remission. So, what happens is you receive the chemotherapy, and the day you start chemotherapy is really day one. And somewhere around day 14, you’re at your lowest point. So, your blood counts are low, and you often feel really terrible, and you really wonder, is this working? But unfortunately, I can’t really tell you. Some institutions do bone marrow biopsies if you have intensive chemotherapy on day 14, or if you’re getting venetoclax (Venclexta) therapy somewhere around day 21 to look and see whether they still see leukemia cells, but the utility of that is different per institution.

The real test of whether chemotherapy x, is at the end of about 28-35 days, are your blood counts coming up, and are you making normal blood cells. Are you making platelets, which are the part of the blood that clots the blood? Or are you making neutrophils, which are the important cells needed to help you fight infection. So, the real proof of a remission, is are your platelets over 100,000? Is your neutrophil count over 1,000? And when we look in the bone marrow around that time, do we see normal cells developing and no leukemia?

Katherine:

How often should testing take place? And should patients be retested over time?

Dr. Ritchie:

So, the bone marrow biopsy is done frequently once you have a diagnosis of acute leukemia. So certainly, it’s done upon diagnosis of the disease.

And as I mentioned earlier in certain institutions, about halfway through your chemotherapy cycle, they’ll do a bone marrow biopsy to see whether or not they see any residual leukemia cells. That’s not done everywhere, and it’s done differently depending upon institutions sometimes. At the end of the chemotherapy treatment, if you recover your blood counts, we do a bone marrow biopsy to confirm a remission. If by day 35, we haven’t seen that your blood counts are recovering, we may do a bone marrow biopsy to see whether or not we see leukemia cells in there, or early recovery. So, you’re definitely going to have bone marrows at those time points. If you’ve gone into remission, it depends on what we’d do next as to when you would have another bone marrow biopsy. So, if you’re going to bone marrow transplant you may have one more biopsy, just prior to going into transplant, and another biopsy at the end of the first month after transplant.

If you’re going to have what we call ongoing therapy, roughly every three or four months, we may do a bone marrow biopsy to determine whether or not the remission is holding. If during ongoing therapy, we see that there is blood count abnormalities that we weren’t expecting, that might be a reason that we would do a bone marrow biopsy. And that’s unpredictable as to when that would be.

AML Targeted Therapies, What’s Available and How Do They Work?

AML Targeted Therapies, What’s Available and How Do They Work? from Patient Empowerment Network on Vimeo.

There are several targeted therapies approved for the treatment of acute myeloid leukemia (AML). Expert Dr. Ellen Ritchie provides insight about recent approvals, how these therapies work, and shares details about newer therapies currently being studied for the treatment of AML.

Dr. Ellen K. Ritchie is assistant professor of medicine and a member of the Leukemia Program at the Weill Cornell Medical College of Cornell University and the New York Presbyterian Hospital. More about Dr. Ritchie, here.

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Transcript:

Katherine:

You touched upon this earlier, but what targeted therapies or treatments are available for AML patients?

Dr. Ritchie:

So, there have been many recent FDA approvals of drugs that are targeted. One, is the FLT3 inhibitors. And the two that are available are Midostaurin, which is most commonly – was the first drug that was really added to intensive chemotherapy.

And clinical trials show that in those FLT3-positive population that patients had an overall better outcome if midostaurin (Rydapt) were added to intensive chemotherapy. There’s also a drug called gilteritinib (Xospata), and this drug is also a FLT3 inhibitor that was tested in patients who had refractory leukemia. They could either get real chemotherapy regimen or they could get gilteritinib. And it turns out in the FLT3-positive patients, the gilteritinib was superior to the strong chemotherapy. So that’s been approved for patients who have refractory, or disease that didn’t really respond to initial therapy, that is IDH – or is FLT3-positive.

Then there’s the IDH1 and IDH2 inhibitors that have also been approved, and a small proportion of AML patients will be positive for IDH1 or IDH2 mutations.

The IDH1 inhibitor ivosidenib (Tibsovo), is available and can be used to treat patients if you know up front, they have an IDH1 inhibitor. So, that’s a regimen where the single agent can be used to treat an IDH1 mutated patient who’s newly diagnosed. Those patients are also eligible for many clinical trials now, where they’re combining that particular drug with other agents, in an effort to improve outcome. For IDH2 positive patients, there’s a drug called enasidenib (Idhifa). And this drug is used mainly in patients in the second line setting. But it specifically targets IDH2. And patients go into remission sometimes for a prolonged period of time. So, these drugs are FDA approved, and they’re treating targetable mutations.

TP53 mutations are a particularly bothersome mutation because it confers a poor outcome. And I’m happy to say that we have clinical trials now that are available that actually target TP53 mutations.

So, there are – there is therapy available for that type of mutation that was

not available before through the clinical trials. And I expect in coming years that we’re going to see more and more targeted therapies develop in AML which can be used potentially in combination with what we’re already using as backbones to enhance the outcome of patients with this disease.

Katherine:

Well, how do targeted therapies work?

Dr. Ritchie:

So, targeted therapies work on – it’s sort of complicated. The targets which are available, IDH or the FLT3 is really on the outside of the cell and it is a drug which is targeted directly to the FLT3 on the outside of the cell.

It works quite well in the peripheral blood, where you see the blast oftentimes disappear. The big concern always is how well it’s working getting deep into the marrow. But it’s looking at the target on the outside of the cell. IDH1 and IDH2 inhibitors work on particular chemicals which are involved in the kreb cycle, and those of you that took high school chemistry may have memories buried in the deep parts of your brain of learning the kreb cycle. And this is a fundamental metabolic cycle inside cells, and if you have a mutation, an IDH1 or IDH2, you’re unable to go through that full kreb cycle in the appropriate way. And that is something that leads to you having a cancer, in this case AML. So, these drugs actually interfere with what’s happening in that kreb cycle, and allow you to make more normal cells.

Factors to Consider When Choosing an AML Treatment

Factors to Consider When Choosing an AML Treatment from Patient Empowerment Network on Vimeo.

What test results and factors should be considered when choosing an acute myeloid leukemia (AML) treatment? Expert Dr. Ellen Ritchie explains how test results impact AML prognosis and treatment – and other factors that come into play when determining a treatment approach.

Dr. Ellen K. Ritchie is assistant professor of medicine and a member of the Leukemia Program at the Weill Cornell Medical College of Cornell University and the New York Presbyterian Hospital. More about Dr. Ritchie, here.

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Transcript:

Katherine:

How do the results of these tests affect prognosis and treatment?

Dr. Ritchie:

Well, when a patient has AML, if they are a fit patient, if it will help us determine after initial induction, whether to cure the patient we need to do a bone marrow transplant, or we can just continue with chemotherapy.

And those are really important things to determine. So, if you have a good prognosis AML, if you have an AML that has certain translocations like inversion 16 or 821, or if you have a CEPBA mutation or you have an NPM1 mutation, and that’s all you have, you may do particularly well with chemotherapy treatment alone. And you won’t need to have a bone marrow transplant.

If you have certain other mutations, we know that the only way that we’re going to cure you, is with a bone marrow transplant. And if you are fit, when we finish induction and even as we’re doing induction, we’re preparing you for a bone marrow transplant down the line.

One disadvantage, just to mention about the molecular testing, is it doesn’t come back as quickly as some of the other testing. So that you will have already started induction chemotherapy most generally before the mutational testing comes back. Which can be anywhere – depending upon the institution, between seven and 21 days. So, it takes time for those results to be available.

Katherine:

Outside of test results, Dr. Ritchie, what other factors should be considered when choosing treatment?

Dr. Ritchie:

So, you want to choose whether a patient is most likely to benefit from intense induction chemotherapy. With strong chemotherapies where the backbone of those therapies would be an anthracycline, like daunorubicin (Cerubidine) or cytarabine (Liposomal), or daunorubicin or idarubicin (Idamycin PFS), together with cytarabine. And these are intensive chemotherapies. Versus, non-intensive chemotherapy which is able to be done as an outpatient, more frequently. And it is something that is gentler for a patient, they’re less likely to have severe toxicity. And the backbone of those regimens is using a drug called azacitidine (Vidaza) or decitabine (Inqovi), together with a second drug called venetoclax (Venclexta).

So, these are the two backbones, there may be clinical trials or there may be targetable aspects of your leukemia, which drugs would be added to either of those backbones. But those are the two backbones. And I also like to identify those patients that may not benefit from chemotherapy at all. And so, it’s very important, I think to really get to know your patient. And I spend time with my patient, particularly on the first visit, to understand not only their physical health, but their mental health. How good is their cognition, what is their mood, are they depressed, or are they happy people? And what is their circumstance? Do they have people to support them? Do they live close to family? Is a caregiver able to come, with an elderly patient for example, to visits?

Those, and whether or not they’re living alone and need tremendous support. So that’s really important to determine and helps me to choose what the best therapy might be. And also, concurrently what I can do to shore up the patient to do better with whatever therapy that I’m giving them. I.e., if you’re depressed, let’s work on that, or if your blood pressure is too high, or if you are – your diabetes is out of control at the same time that I’m seeing you, to try and fix those particular problems. In older patients I often do sort of a miniature version of the geriatric assessment. And in trials that have been so far, the most important aspects of the geriatric assessment, are really what is your cognitive function? Do have a mild dementia, or do you not have a mild dementia? Because dementia may be or mild dementia may be associated with poorer outcome.

The other is, are you able to do what we call the incidental tasks of daily life. So, you know fundamental tasks are really brushing your teeth and combing your hair, and dressing yourself. But are you able to do your cooking and your shopping and your banking and those things? Patients who have trouble doing their cooking and shopping and banking, and those types of activities, that also has been associated with a poor overall survival in AML. So, it’s really important to determine all of those aspects and if there are any deficiencies, to really know that the only therapeutic choice for that particular patient would be a low-intensity therapy.

Understanding Personalized Medicine for AML

Understanding Personalized Medicine for AML from Patient Empowerment Network on Vimeo.

What should you know before deciding on treatment for YOUR AML? AML specialist Dr. Ellen Ritchie reviews key factors that guide treatment choices, including biomarker testing results, and shares advice for partnering with your team to advocate for the best care.

Dr. Ellen K. Ritchie is assistant professor of medicine and a member of the Leukemia Program at the Weill Cornell Medical College of Cornell University and the New York Presbyterian Hospital. More about Dr. Ritchie, here.

See More From INSIST! AML


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Transcript:

Katherine:

As we begin to talk about personalized therapy and AML, let’s start with the basics. How would you define personalized medicine?

Dr. Ritchie:

Personalized medicine, to me is really, it’s a difficult question. It’s trying to find the best treatment for a particular patient. And it’s looking at biologic issues, what kind of cancer, what type of AML is it, what are the specific mutations or chromosomal abnormalities. But it’s also looking at the person. Is the patient active or not active? Do they have lots of other diseases like diabetes and coronary artery disease? Or pulmonary disease, or are they completely healthy?

Or, do they have support at home? If they’re sick at home is there someone who can take care of them, versus a situation where you’re older and alone and you have no real family member to rely on. So, all of these things are very important in making a personalized decision as to how you treat a patient.

Where Do Clinical Trials Fit Into an AML Treatment Plan?

Where Do Clinical Trials Fit Into an AML Treatment Plan? from Patient Empowerment Network on Vimeo.

AML expert Dr. Eunice Wang discusses the role that clinical trials play in advancing research, the benefits of participation in research, and explains why she recommends trials for AML patients. 

Dr. Eunice Wang is the Chief of the Leukemia Service and Professor of Oncology at the Roswell Park Comprehensive Cancer Center in Buffalo, New York. Learn more about Dr. Wang, here.

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Transcript:

Katherine:

Where do clinical trials fit in when it comes to choosing treatment?

Dr. Wang:

Clinical trials are the mainstay of everything that we do in cancer care. Every single cancer drug that we’ve developed dating back into the 1970s at the National Institute of Health is the result of some patients and some doctors designing a clinical trial. These FLT3 inhibitors were developed over the last several years, so when I first came out of fellowship and started my training, we didn’t have these targeted therapies. Since 2017, in four years, we’ve had nine different drugs approved.

So, clinical trials are the way that we go from a finding in the laboratory to somebody having an extra birthday or going to their son or daughter’s wedding. That’s really how important it is, and those brave individuals who participate in clinical trials are helping not only themselves, but helping other people. I can’t tell you how many patients I enroll in clinical trials for AML, and I have told them – I said, “These nine drugs that we approved were because of nine different clinical trials which demonstrated benefit involving hundreds of thousands of patients.”

I can’t tell you how many times I’ve had a patient say to me, “Look, doctor, I’m going to participate in this clinical trial so that even if I’m not helped, you could learn something from me that could help the next person with their disease.” People are incredibly unselfish when it comes to clinical trials. I recommend a clinical trial for all my patients because I feel like that’s the cutting-edge clinical care.

I had patients here who I had on clinical trial drugs, and I was able to go to them and say, “Good news: Your drug has now been approved.” And, they say, “Doctor, why? I’ve been on this drug for a year.” And, I said, “That’s right, because you were part of that clinical trial, and you’re here now because of that drug, and now, a year or two later, that drug’s potency has been recognized, and now, the fact that you were in that trial has really helped us get this approval, which is going to help every other patient with that disease going down the line.” So, very important.

What Key Tests Do You Need Before Choosing an AML Treatment?

What Key Tests Do You Need Before Choosing an AML Treatment? from Patient Empowerment Network on Vimeo.

How do test results influence treatment choices for AML? Dr. Eunice Wang shares information about essential testing and explains how results aid in determining the best personalized treatment option for each patient.

Dr. Eunice Wang is the Chief of the Leukemia Service and Professor of Oncology at the Roswell Park Comprehensive Cancer Center in Buffalo, New York. Learn more about Dr. Wang, here.

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Transcript:

Katherine:

What is the role of testing when deciding on treatment for AML?

Dr. Wang:

Testing is essential in us selecting and determining the best personalized treatment option for each individual patient. As you know, AML is an aggressive hematologic malignancy and can be devastating, both in its life-threatening nature and in its rapidity and the need for a rapid diagnosis. Testing, including both pathology results as well as protein marker testing, and, importantly in this day and age, DNA and RNA testing is essential because we have numerous different treatment options that could be available to the patient if their particular disease biology matches with the targeted therapies that we have.

So, as you may or may not know, since 2017, we’ve had eight or nine different therapies approved for AML, and this is a bonanza of options, some of which are only for specific biological subsets, and some even for specific patients, such as those above the age of 75. So, doing that testing, particularly that genetic testing, is important both in establishing the diagnosis and determining whether there is less toxic, more targeted, personalized treatment approaches, some of which involve low-dose chemo or even pills available to the individual patient.

Katherine:

You’ve answered this, in part, but which tests are essential following an AML diagnosis?

Dr. Wang:

I think all of them are essential, but in this day and age, for the selection of targeted therapy, it really is the mutational testing, which is looking at the RNA of the tumor cells and determining whether that has been altered in allowing the cells to express abnormal proteins. For standard chemotherapy, we also use DNA testing, which is looking at the different chromosomes and seeing whether there’s breakages or what we call translocations, pieces of chromosomes that have been swapped. That DNA chromosome information can give us some insight into prognosis and therapy response.

So, nowadays, it’s not just determining that you have acute leukemia, but looking at the specific DNA and RNA changes, and I have to say that this is a disease that we’re really not seeing any RNA or mutational changes occurring in more than 20 percent or 30 percent of patients. So all of the mutations that we see that could be impactful really don’t occur in more than 20 percent or 30 percent, and could only occur in five or one percent.

So, really, personalizing an individual patient’s disease, both for the disease biology as well as the person that’s getting the chemotherapy or the diagnosis, is really, really important.

Katherine:

Yeah. Let’s define a few terms that are often confusing for patients. What are biomarkers?

Dr. Wang:

Biomarkers are either proteins or expression levels on the cancer cells that can serve to tell us information about the biology of the disease. Okay, so, for example, if you have evidence of residual tumor proteins in your blood, that could be a marker, for example, of minimal residual disease, okay? And, that can tell you maybe one in a million cells have that biomarker, and then you can tell that those one-in-a-million cells are leukemia cells.

So, they’re any marker that we’re using that’s specific for the tumor that can help us in predicting or finding or locating or determining if a tumor would respond to a certain therapy.

Katherine:

What is biomarker testing?

Dr. Wang:

Biomarker testing can be done in many ways. For example, biomarker testing is drawing a sample from the patient and evaluating a marker that we think is going to predict for the disease type.

So, for example, in some cancers, we don’t want to biopsy the lung mass or the tumor mass every single time to see whether it’s shrinking, or getting smaller, or responding. So, in those patients, sometimes we’ll draw a blood sample, and we’ll look for a surrogate marker – some protein that’s expressed in the blood or some DNA or RNA in the blood that is a surrogate or a marker of the tumor so you don’t have to directly biopsy it.

In acute myeloid leukemia, we are looking for – like I said – particular cells in the blood that have particular proteins, and we measure those rather than going ahead and doing that bone marrow biopsy or biopsying those tumors. So, generally, in leukemia, it involves drawing blood samples – that’s the most common; it is a bloodborne disease.

Sometimes, we actually have to go into the bone marrow and do a bone marrow sample, but those biomarkers, as I said, can really improve our ability to detect very, very low levels of disease. So, for example, using a conventional bone marrow biopsy, we can only really detect 1 out of 200 cancer cells by normal – just by visual looking at, but by measuring biomarkers and mutations and other abnormal proteins, we can improve that to 1 in 100,000 cells.

So, really, these biomarkers are very sensitive and important because we want to detect the disease at a point where it’s very, very low. We don’t want to wait until the disease gets very advanced, in which case we think our therapies are less effective.

Katherine:

What is a genetic mutation?

Dr. Wang:

A genetic mutation is a mutation that occurs in the RNA of a cancer cell. That RNA dam – RNA aberration or abnormality does lead to different RNA – what we call transcript levels that lead to abnormal proteins.

Those proteins function in the cells to make a cell a cancer cell, okay? So, all cancer cells start out as normal cells, and as they acquire a mutation, they become a little less normal, and they start acquiring multiple mutations, and some of these mutations occur without DNA changes, some of them occur with DNA changes. And as these abnormalities occur, the cell gets more and more dysfunctional, and eventually, it starts becoming almost evil-ish.

It starts acquiring behaviors that are not normal, and then it starts to grow out of control, and that unchecked growth really is the end result of potentially many mutations occurring over time to drive that cell into becoming a cancer cell, and we call that process transformation, transforming from a normal, healthy-looking cell into almost a monstrous, cancer-like cell.

Katherine:

How do biomarkers affect AML treatment choices?

Dr. Wang:

So, those biomarkers, as I talked about, those mutations can determine what type of therapy patients can have. For example, up to 25 percent or 37 percent of newly diagnosed AML patients will have leukemia cells that carry the biomarker or the mutation in a gene called FLT3, or “flit.”

Those FLT3 cells can be inhibited by specific targeted therapies, including a drug called gilteritinib (Xospata), which is a pill which blocks mutant FLT3 expressed by AML cells. So, we’ve demonstrated, actually, in a randomized clinical trial that patients who have relapsed or recurrent AML who carry cells that have that biomarker – that FLT3 mutation – will actually do better if they take a daily pill – a FLT3 inhibitor – every single day for treatment of their aggressive acute myeloid leukemia than if we gave them low- or even high-dose chemotherapy in the hospital for four to six weeks.

So, that’s the power of those targeted therapies. Because the biomarker is telling you that there’s a sensitivity of that cancer cell to a specific blockage of that pathway, that can really dramatically change the course.

That is where the importance and the power of those biomarkers really goes into play. In the past, patients who had acute myeloid leukemia with FLT3 mutations did poorly with chemotherapy and had disease that came back even after multiple rounds of that intensive chemotherapy. The fact that we can give a pill and people could do better or even go to a bone marrow transplant off treatment with the pill is pretty remarkable.

Which AML Treatment Is Right for You? What You Need to Know

Which AML Treatment Is Right for You? What You Need to Know from Patient Empowerment Network on Vimeo.

What should you know before deciding which treatment is best for YOUR AML? AML specialist Dr. Ellen Ritchie reviews key factors that guide treatment choices, including biomarker testing results, and shares advice for partnering with your team to advocate for the best care.

Dr. Ellen K. Ritchie is assistant professor of medicine and a member of the Leukemia Program at the Weill Cornell Medical College of Cornell University and the New York Presbyterian Hospital. More about Dr. Ritchie, here: weillcornell.org/ekritchie.

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Expert Advice for AML Patients When Making Treatment Choices

Transcript:

Katherine:

Hello, and welcome. I’m Katherine Banwell, your host for today’s program. Today we’re going to discuss how to access the most personalized AML therapy for your individual disease, and why it’s essential to insist on key testing. Before we meet our guest, let’s review a few important details. The reminder email you received about this program, contains a link to program materials. If you haven’t already, click that link to access information to follow along during this webinar. 

Finally, please remember that this program is not a substitute for seeking medical advice. Please refer to your healthcare team about what might be best for you. All right, let’s meet our guest today. Joining me is Dr. Ellen Ritchie. Dr. Ritchie, would you please introduce yourself? 

Dr. Ritchie:

Hello, my name is Dr. Ellen Ritchie, and I am an attending with a Leukemia service, and an assistant director since, for the last 15 years. 

And I treat mainly Acute Myeloid Leukemia, Myelodysplastic syndromes, which are kind of a pre-Leukemia; and Myeloproliferative diseases. And have a particular interest in the treatment of older patients with AML.  

Katherine:

Excellent, well thank you so much for joining us today. As we begin to talk about personalized therapy and AML, let’s start with the basics. How would you define personalized medicine? 

Dr. Ritchie:

Personalized medicine, to me is really, it’s a difficult question. It’s trying to find the best treatment for a particular patient. And it’s looking at biologic issues, what kind of cancer, what type of AML is it, what are the specific mutations or chromosomal abnormalities. But it’s also looking at the person. Is the patient active or not active? Do they have lots of other diseases like diabetes and coronary artery disease? Or pulmonary disease, or are they completely healthy? 

Or, do they have support at home? If they’re sick at home is there someone who can take care of them, versus a situation where you’re older and alone and you have no real family member to rely on. So, all of these things are very important in making a personalized decision as to how you treat a patient. 

Katherine:

Well, it sounds like, each person’s AML is unique. So, let’s help our audience be clear about basic testing. What tests are necessary to help understand a patient’s specific disease at diagnosis? 

 Dr. Ritchie:

I mean certainly it’s important to do a physical exam and to find out what the general health of the patient is. In order to evaluate an AML, or any other Leukemia, I look at the peripheral blood smear. To look at what I think the type of Leukemia might be that I am dealing with. There are some Leukemias that have particular way that they look like Acute Promyelocytic Leukemia for which there is a designated therapy which works.  

And you can tell that just by looking at a peripheral blood slide. The next test is always a bone marrow biopsy. Patients are not delighted that that is a test, but it is a test that can be done in the office, usually within 15 to 20 minutes. And that test gives us a lot of information. It gives us information about what type of AML it is, what are the markers on the outside of the cell, it gives us information about the chromosomes inside the Leukemia cell. Are there missing chromosomes, or rearranged chromosomes? And if there are, that can be very relevant to the prognosis. And lastly, it’s sent for a particular mutations or markers. So, we look for IDH3 mutations, we look for FLT3 mutations, we look for IDH1 and IDH2 mutations, and we do an entire myeloid panel. Which is about 44/45 genes that are most commonly mutated in patients with AML.  

So that’s the initial work up for any AML patient. 

Katherine:

You mentioned markers Dr. Ritchie. What is genomic, or bio marker testing? 

Dr. Ritchie:

So, we’re looking really at most specifically at mutations inside individual genes that might be in your Leukemia cell. So, there are some mutations actually that confer a better prognosis. Like NPM1 or CEPBA, those can be more positive type of prognosis than some of the others.  

But we’re also looking for markers that might be targetable with certain therapies that we have. So, if you have a FLT3 ITD or TKD, we actually have particular drugs which can target those particular mutations. There are also drugs that are FDA approved to treat IDH1 and IDH2 mutations. 

There are certain mutations that have a relatively poor prognosis, like TP53 for which there are clinical trials which are available, which specifically are meant to target patients who have those sorts of mutations. And there’re other clinical trials using the FDA approved drugs that I just mentioned, for FLT3, for IDH1 and IDH2 and combining it with other agents to try and improve outcome in AML patients. 

Katherine:

Some patients may not know if they’ve received these important tests, so what key questions should they be asking their physician about testing? 

Dr. Ritchie:

So, physicians, they – financial coverage of the mutational testing is not uniform across the country and across insurances. So, Medicare and different Medicare insurances and some of the private insurances all vary in their coverage.  

So, in my clinic, I am asking – I prefer the test that we do in house at Cornell. But it’s important that I ask, what will their insurance cover. And make sure that I send the appropriate testing that will be covered by insurance. There are some insurances that will not cover this type of testing. So, it is a real question for the patient, when you go to see the doctor to say, are you going to do mutational NGS testing?  

And, will my insurance cover this? Hopefully most – if Medicare adopts the coverage of these types of mutational testing, it’s often true that private insurance will eventually pick this up. But it’s a murky field and it’s really important to talk to your doctor about this. The cost of the bone marrow biopsy, and the chromosomal evaluation is nearly always covered by insurance.  

Katherine:

Okay, that’s really great advice, thank you. How do the results of these tests affect prognosis and treatment? 

Dr. Ritchie:

Well, when a patient has AML, if they are a fit patient, if it will help us determine after initial induction, whether to cure the patient we need to do a bone marrow transplant, or we can just continue with chemotherapy.  

And those are really important things to determine. So, if you have a good prognosis AML, if you have an AML that has certain translocations like inversion 16 or 821, or if you have a CEPBA mutation or you have an NPM1 mutation, and that’s all you have, you may do particularly well with chemotherapy treatment alone. And you won’t need to have a bone marrow transplant. 

If you have certain other mutations, we know that the only way that we’re going to cure you, is with a bone marrow transplant. And if you are fit, when we finish induction and even as we’re doing induction, we’re preparing you for a bone marrow transplant down the line.  

One disadvantage, just to mention about the molecular testing, is it doesn’t come back as quickly as some of the other testing. So that you will have already started induction chemotherapy most generally before the mutational testing comes back. Which can be anywhere – depending upon the institution, between seven and 21 days. So, it takes time for those results to be available.  

Katherine:

Outside of test results Dr. Ritchie, what other factors should be considered when choosing treatment? 

Dr. Ritchie:

So, you want to choose whether a patient is most likely to benefit from intense induction chemotherapy. With strong chemotherapies where the backbone of those therapies would be an anthracycline, like Daunorubicin or Cytarabine, or Daunorubicin or Idarubicin, together with Cytarabine. And these are intensive chemotherapies. Versus, non-intensive chemotherapy which is able to be done as an outpatient, more frequently. And it is something that is gentler for a patient, they’re less likely to have severe toxicity. And the backbone of those regimens is using a drug called Azacitidine or Decitabine, together with a second drug called Venetoclax. 

So, these are the two backbones, there may be clinical trials or there may be targetable aspects of your Leukemia, which drugs would be added to either of those backbones. But those are the two backbones. And I also like to identify those patients that may not benefit from chemotherapy at all. And so, it’s very important, I think to really get to know your patient. And I spend time with my patient, particularly on the first visit, to understand not only their physical health, but their mental health. How good is their cognition, what is their mood, are they depressed, or are they happy people? And what is their circumstance? Do they have people to support them? Do they live close to family? Is a caregiver able to come, with an elderly patient for example, to visits? 

Those, and whether or not they’re living alone and need tremendous support. So that’s really important to determine and helps me to choose what the best therapy might be. And also, concurrently what I can do to shore up the patient to do better with whatever therapy that I’m giving them. I.E., if you’re depressed, let’s work on that, or if your blood pressure is too high, or if you are – your diabetes is out of control at the same time that I’m seeing you, to try and fix those particular problems. In older patients I often do sort of a miniature version of the geriatric assessment. And in trials that have been so far, the most important aspects of the geriatric assessment, are really what is your cognitive function? Do have a mild dementia or do you not have a mild dementia? Because dementia may be or mild dementia may be associated with poorer outcome. 

The other is, are you able to do what we call the incidental tasks of daily life. So, you know fundamental tasks are really brushing your teeth and combing your hair, and dressing yourself. But are you able to do your cooking and your shopping and your banking and those things? Patients who have trouble doing their cooking and shopping and banking, and those types of activities, that also has been associated with a poor overall survival in AML. So, it’s really important to determine all of those aspects and if there are any deficiencies, to really know that the only therapeutic choice for that particular patient would be a low-intensity therapy. 

Katherine:

You touched upon this earlier, but what targeted therapies or treatments are available for AML patients? 

Dr. Ritchie:

So, there have been many recent FDA approvals of drugs that are targeted. One, is the FLT3 inhibitors. And the two that are available are Midostaurin, which is most commonly – was the first drug that was really added to intensive chemotherapy. 

And clinical trials show that in those FLT3 positive population that patients had an overall better outcome if Midostaurin were added to intensive chemotherapy. There’s also a drug called gilteritinib, and this drug is also a FLT3 inhibitor that was tested in patients who had refractory leukemia. They could either get real chemotherapy regimen or they could get gilteritinib. And it turns out in the FLT3-positive patients, the gilteritinib was superior to the strong chemotherapy. So that’s been approved for patients who have refractory, or disease that didn’t really respond to initial therapy, that is IDH – or is FLT3 positive.  

Then there’s the IDH1 and IDH2 inhibitors that have also been approved, and a small proportion of AML patients will be positive for IDH1 or IDH2 mutations. 

The IDH1 inhibitor Ivosidenib, is available and can be used to treat patients if you know up front, they have an IDH1 inhibitor. So, that’s a regimen where the single agent can be used to treat an IDH1 mutated patient who’s newly diagnosed. Those patients are also eligible for many clinical trials now, where they’re combining that particular drug with other agents, in an effort to improve outcome. For IDH2 positive patients, there’s a drug called Enasidenib. And this drug is used mainly in patients in the second line setting. But it specifically targets IDH2. And patients go into remission sometimes for a prolonged period of time. So, these drugs are FDA approved, and they’re treating targetable mutations.  

TP53 mutations are a particularly bothersome mutation because it confers a poor outcome. And I’m happy to say that we have clinical trials now that are available that actually target TP53 mutations.  

So, there are – there is therapy available for that type of mutation that was not available before through the clinical trials. And I expect in coming years that we’re gonna see more and more targeted therapies develop in AML which can be used potentially in combination with what we’re already using as backbones to enhance the outcome of patients with this disease. 

Katherine:

Well, how do targeted therapies work? 

Dr. Ritchie:

So, targeted therapies work on – it’s sort of complicated. The targets which are available, IDH or the FLT3 is really on the outside of the cell and it is a drug which is targeted directly to the FLT3 on the outside of the cell. 

It works quite well in the peripheral blood, where you see the blast oftentimes disappear. The big concern always is how well it’s working getting deep into the marrow. But it’s looking at the target on the outside of the cell. IDH1 and IDH2 inhibitors work on particular chemicals which are involved in the kreb cycle, and those of you that took high school chemistry may have memories buried in the deep parts of your brain of learning the kreb cycle. And this is a fundamental metabolic cycle inside cells, and if you have a mutation, an IDH1 or IDH2, you’re unable to go through that full kreb cycle in the appropriate way. And that is something that leads to you having a cancer, in this case AML. So, these drugs actually interfere with what’s happening in that kreb cycle, and allow you to make more normal cells. 

Katherine:

You mentioned earlier Dr. Ritchie, low-intensity therapy. Could you tell us about the types of treatment options? 

Dr. Ritchie:

So, I’ll go – high-intensity therapy or intense chemotherapy always has to be given really in a hospital. And if you don’t start it – if you can start certain intensive chemotherapies, like Vyxeos, which is also intensive, in the outpatient setting, but by day seven or eight, you end up in the hospital. And in intensive chemotherapies, you lose your hair, there’s GI toxicities, you’re at high risk of developing infections and you need a lot of transfusion. And for even young people, it’s a difficult therapy for which you’re in the hospital, and 90-some percent of patients are on IV antibiotics. 

So, it’s intensive chemotherapy because it has to be given in a hospital setting and requires intensive supportive care. Low-intensity therapy can be given in the outpatient setting. So, at the present time you can get a drug like Azacitidine, for example, which is an injection that you get seven days in a row. Unfortunately, you have to come to the doctor’s office every day for those injections, but once you’ve had the injection, you can go home. Combined with Venetoclax which is an oral agent. So, an oral agent can be given at home. You need close supervision in the physician’s office when you’re on this type of therapy, but you don’t need the constant support that you need if you are getting intensive chemotherapy. So, it can be done, in the comfort really of your home and with your family. You will have to come in and have transfusions potentially as an outpatient, nearly everyone does. And there’s always the risk that you develop a fever and if you do, you have to come into the hospital for IV antibiotics. 

But in general, low-intensity means not so much support needed in a hospitalized setting, and the tolerability of this particular chemotherapy in the outpatient setting.  

Katherine:

Once a patient has begun treatment, how do you monitor whether it’s working? 

Dr. Ritchie:

So, one of the more frustrating things about being an AML patient, is you don’t know right off the bat whether or not that you have gone into remission. So, what happens is you receive the chemotherapy, and the day you start chemotherapy is really day one. And somewhere around day 14, you’re at your lowest point. So, your blood counts are low, and you often feel really terrible, and you really wonder, is this working? But unfortunately, I can’t really tell you. Some institutions do bone marrow biopsies if you have intensive chemotherapy on day 14, or if you’re getting Venetoclax therapy somewhere around day 21 to look and see whether they still see Leukemia cells, but the utility of that is different per institution.  

The real test of whether chemotherapy x`, is at the end of about 28-35 days, are your blood counts coming up, and are you making normal blood cells. Are you making platelets, which are the part of the blood that clots the blood? Or are you making neutrophils, which are the important cells needed to help you fight infection. So, the real proof of a remission, is are your platelets over 100,000? Is your neutrophil count over 1,000? And when we look in the bone marrow around that time, do we see normal cells developing and no Leukemia? 

Katherine:

How often should testing take place? And should patients be retested over time? 

Dr. Ritchie:

So, the bone marrow biopsy is done frequently once you have a diagnosis of Acute Leukemia. So certainly, it’s done upon diagnosis of the disease. 

And as I mentioned earlier in certain institutions, about halfway through your chemotherapy cycle, they’ll do a bone marrow biopsy to see whether or not they see any residual Leukemia cells. That’s not done everywhere, and it’s done differently depending upon institutions sometimes. At the end of the chemotherapy treatment, if you recover your blood counts, we do a bone marrow biopsy to confirm a remission. If by day 35, we haven’t seen that your blood counts are recovering, we may do a bone marrow biopsy to see whether or not we see Leukemia cells in there, or early recovery. So, you’re definitely going to have bone marrows at those time points. If you’ve gone into remission, it depends on what we’d do next as to when you would have another bone marrow biopsy. So, if you’re going to bone marrow transplant you may have one more biopsy, just prior to going into transplant, and another biopsy at the end of the first month after transplant. 

If you’re gonna have what we call ongoing therapy, roughly every three or four months, we may do a bone marrow biopsy to determine whether or not the remission is holding. If during ongoing therapy, we see that there is blood count abnormalities that we weren’t expecting, that might be a reason that we would do a bone marrow biopsy. And that’s unpredictable as to when that would be.  

Katherine:

Dr. Ritchie, what advice do you have for patients to help them feel more confident in speaking up and advocating, being a partner in their care? 

Dr. Ritchie:

Well, when you choose a Leukemia doctor, you need to choose someone that you can actually communicate with. Someone who you feel is not allowing you to ask questions, or is not curious about what your life is like, you may wanna think, I wanna check out somebody else.  

Because it’s really important you like the person who’s your doctor, and that you have a trust relationship together. So, it’s really – I tell some patients it’s a marriage of convenience that we have. And that you really have to think of it that way. If someone doesn’t allow you to ask questions or if they are not fully answering your questions in a way that you understand, try and speak up for yourself and make sure that the doctor tries to address that. And if the doctor won’t address those things for you, or you feel like you don’t understand what is being explained to you, then you can think about trying to see someone else. I think it’s really important if you can, to write down as many questions as you have about your disease before you come in. 

Because often what happens is you get there, you’re stunned by the amount of information, and the questions you wanted to ask, you forget. And the next day, you’re like, ugh, I didn’t ask these questions. So, before you come in, if you write questions. Questions about insurance coverage, that may not be something that we go over. Or questions about toxicities, or questions, if I’m gonna lose my hair, do you have the name of a wig facility. All these questions that you might have, put them on a piece of paper, so that they can be addressed when you’re with the doctor. And other things will come up, you’ll have other questions when you’re there, but make sure your fundamental questions are answered. 

Katherine:

Yeah, those are great suggestions. We have a couple of audience questions. Mike wants to know, what does it mean to have high-risk AML? 

Dr. Ritchie:

High-risk AML means that there is something in your chromosomes that are worrisome and may confer a worse outcome. Or that one of the mutations that you have, or the combination of mutations that you have and the genetic testing are poor risk mutations that are associated with poor outcome. So, high-risk, really means a high risk of progression, or a high risk of – it’s a high risk of not going into remission and not being treatable AML. So, these are AMLs we treat aggressively, and if we get a patient into remission, we generally send high-risk patients to a bone marrow transplant. 

Katherine:

The second question is from Craig, he says; I’m currently undergoing treatment for AML, is the Covid-19 vaccine safe and effective? 

Dr. Ritchie:

I recommend the Covid-19 vaccine to everyone, all my patients. A little immunity is better than none. And there is preliminary data, looking at patients with Myeloid malignancies, not Lymphoid, but Myeloid malignancies, where it appears there is an immune response to the Covid-19 vaccine. So, I would suggest that you get the Covid-19 vaccine. Any of them that are available, are good. Whether it’s Moderna, or Pfizer, or Johnson and Johnson. Whatever is available to you, you should go ahead and get. 

Katherine:

Are there any symptoms or issues that AML patients should be looking for post-vaccine? 

Dr. Ritchie:

Post-vaccine, there’s a lot of symptoms that people have. And they can be similar among Myeloid patients. Some of my patients have had no reaction whatsoever, some people have had a really sore arm. 

Some patients are incredibly tired after the vaccine; some patients develop a low-grade fever for a couple of days. Those are really what we watch for. Sometimes when there’s a reaction, we’re hopeful that there’s an antibody being made, or an immune response that’s developing. So, it’s not always a bad thing if you have a reaction. But I don’t think that the reactions of patients of Myeloid malignancies is any different than that of the general public. 

Katherine:

That’s what it sounds like. To close Dr. Ritchie, what would you like to leave the audience with? Are you hopeful about the future of AML treatment? 

Dr. Ritchie:

I’m very hopeful. I’ve worked in this field for 15 years and through the 15 years we have seen a lot of new drugs that have been approved for AML. It’s remarkable, the FLT3 inhibitors, IDH1 and IDH2 inhibitors, new formulations of intensive chemotherapy, like Vyxeos, the Pfizer drug; glasdegib – I can never say that one. And most importantly, venetoclax, which has really revolutionized our treatment of low-risk, or not low-risk, but the low intensity patient. 

I see in the future that there is gonna be more – there’s an emphasis on immunotherapy, so I think we’re gonna see more antibody-based therapy that’s going to be approved by the FDA. Maybe it will be used in combination with the drugs that we are already using. There are all sorts of combinations using all the FDA approved drugs in different ways together. So, we can maybe do better with the drugs that we have. And there’s always new targeted drugs which are being tested in AML. So, I think as time goes on, from a molecular perspective it will be even more targeted. And I’m hoping also that there will be oral formulations of a lot of our drugs. So, it’s kind of exciting that there’s an oral form of Decitabine called Inqovi, which is something that could potentially be given in induction therapy right off the bat with Venetoclax for an all-oral regimen at home. 

All of these things are great advances, in my opinion, and I think that the opportunity to treat patients outside the hospital, with more targeted therapy and immunotherapy is gonna be the future. 

Katherine:

Yeah. And the future sounds promising. Thank you so much for joining us today Dr. Ritchie. 

Dr. Ritchie:

Thank you for having me. 

Katherine:

And thank you to all of our partners.  

To learn more about AML, and to access tools to help you become a proactive patient, visit powerfulpatients.org. I’m Katherine Banwell, thanks for joining us.

Is the COVID Vaccine Effective for CLL Patients?

Is the COVID Vaccine Effective for CLL Patients? from Patient Empowerment Network on Vimeo.

Is the COVID vaccine effective for chronic lymphocytic leukemia (CLL) patients? Dr. Paul Barr shares insight about mRNA-based COVID-19 vaccine effectiveness in CLL patients – both for those in remission and those in active treatment.

Dr. Paul Barr is Professor of Hematology/Oncology at University of Rochester Medical Center. Learn more about Dr. Barr, here.

See More from Engage CLL


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An Expert’s Perspective on CLL Research Advances

Transcript:

Katherine:

I understand that researchers have been looking into whether the COVID vaccination is as effective in people with CLL. What can you tell us about that? The research?

Dr. Barr:

Sure. Everyone knew this was going to be an important question. We’ve known for a long time that riff CLL responses to vaccines in general aren’t as good as some of the normal population. So, there’ve been a whole host of studies over the years where patients didn’t quite respond as well to flu vaccines or pneumonia vaccines. Nonetheless, we typically recommend standard vaccinations, because there’s can be some degree of response. And our testing isn’t always perfect in terms of how well vaccines work.

So, when it typically, is felt to be a relatively safe procedure, is something we typically recommend.

More recently, we looked at studies on the shingles vaccine, and actually that works better than perhaps the flu shot, for example. Because patients probably were previously exposed to that virus earlier in life when they get vaccinated. So, recall response, which is a little bit easier for the immune system.

So, that brings us up to the COVID vaccines, which is obviously critically important ever on everyone’s mind. And the data’s still early. But what we’ve learned so, far is that, like what we might have predicted, our patients, the CLL patients don’t respond as well to the mRNA-based COVID vaccines.

So, in the media we saw, in the larger 20- and 40,000 patients studies that maybe, 95 percent of patients didn’t experience infection. It looks like in the general population, those vaccines work very well. In a cohort of 160, some CLL patients who are vaccinated early on in Israel, it looked like maybe about 40 percent of patients responded.

For the patients who hadn’t previously been treated but had measurable CLL, maybe about half of patients responded adequately in terms of generating antibodies. So, kind of a flip of a coin. For patients who have been treated and were in remission for more than a year, we’ll say the responses were better, maybe 80 percent or so.

For patients who are on active treatment, even our novel treatments, like the BTK inhibitors or venetoclax (Venclexta), the BCL-2 inhibitor, the responses were pretty poor, 18 or so percent.

So, you can see for patients with active disease, their responses are impaired. For those that are in remission, a little better. For those who are on active treatment, the antibody responses aren’t very good. So, I honestly think this is important information, but tell patients, don’t lose hope.

It’s still important to take the precautions. Some degree of wearing masks and social distancing. They will be better protected if their friends and family around them are vaccinated, and they still may respond to some degree. It’s not like the vaccines aren’t working at all. It’s just that the responses aren’t quite as good as the general population. So, again, another long-winded answer, but hopefully that helps patients understand some of the limitations in vaccinations.

But also that generally things are getting safer in that they still can venture out in society, but still have to take some precautions.