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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Key AML Testing for Better Care: Understanding Prognosis and Treatment Choices

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.

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

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

What should acute myeloid leukemia (AML) patients know about COVID-19 vaccines? Expert Dr. Ellen Ritchie shares information about COVID-19 vaccine safety and effectiveness for AML patients and reviews side effects that may follow vaccination.

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:

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 & 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.

How to Be a Partner in Your AML Care

How to Be a Partner in Your AML Care from Patient Empowerment Network on Vimeo.

How can acute myeloid leukemia (AML) patients take a proactive approach to their care? Expert Dr. Ellen Ritchie shares advice for qualities to look for in your AML care provider and how to ensure all your questions are answered by your healthcare team.

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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Being Pro-Active in Your Care: Key AML Testing to Advocate For

Advocating for Key AML Testing: Advice From an Expert

Advocating for Key AML Testing: Advice From an Expert

Transcript:

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 want to think, I want to 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 going to 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.

What Is Low-Intensity AML Therapy?

What Is Low-Intensity AML Therapy? from Patient Empowerment Network on Vimeo.

How does low-intensity AML therapy differ from high-intensity AML therapy? Expert Dr. Ellen Ritchie provides a comparison of the administration methods, side effects and reviews which AML patients low-intensity and high-intensity therapy are right for.

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 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 daunorubicin and cytarabine (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 (Vidaza), 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 (Venclexta) 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.

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 Key Tests That Affect AML Treatment Choices

Understanding Key Tests That Affect AML Treatment Choices from Patient Empowerment Network on Vimeo.

For acute myeloid leukemia (AML), test results play a vital role in determining the most appropriate treatment option. Expert Dr. Ellen Ritchie reviews key tests used to pinpoint a patient’s specific AML, how the test results are utilized, and important questions patients should ask their doctor about AML testing. 

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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Essential Testing in AML: How Results Impact Care & Treatment Choices


Transcript:

Katherine:

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 biomarker 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.

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.

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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.

AML Research and Emerging Treatment Options: An Expert’s Perspective

AML Research and Emerging Treatment Options: An Expert’s Perspective from Patient Empowerment Network on Vimeo.

AML expert Dr. Eunice Wang shares exciting advances in the field of AML research, particularly in targeted therapies related to the TP53 and NPM1 mutations. 

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 specifically are you excited about in terms of AML research and emerging treatment options?

Dr. Wang:

I am really excited about the advent of newer targeted therapies. Right now, we only have targeted therapies for probably about three mutations out of the many, many mutations that we know exist in AML. So, we know that there certainly are patients that have specific mutations, such as TP53 mutations, or patients who have very complicated series of DNA damage, that just don’t do well with any of our therapies.

I’m looking forward to another bunch of targeted therapies – these inhibitors called menin inhibitors – that might be useful for treating patients that have mutations in NPM1 gene or other chromosome abnormalities.

I’m also really looking forward to us being able to finally unleash the power of the immune system for treatment of AML with a few novel agents coming down the pike which have, for the first time, started to show that immune modulation can work in AML patients.

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.

How Molecular Testing Has Transformed AML Treatment Options

How Molecular Testing Has Transformed AML Treatment Options from Patient Empowerment Network on Vimeo.

How has molecular testing impacted approaches to acute myeloid leukemia (AML) therapy? Dr. David Sallman explains how molecular testing has transformed AML care, including a discussion of risk assessment and the role of next-generation sequencing (NGS) in tailoring care for each patient. 

Dr. David Sallman is an Assistant Member in the Department of Malignant Hematology at Moffitt Cancer Center where he specializes in myelodysplastic syndromes (MDS), acute myeloid leukemia (AML) and myeloproliferative neoplasms (MPN). Learn more about Dr. Sallman, here.

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Understanding AML Induction and Consolidation Therapy

Transcript:

Katherine:

How has molecular testing changed the landscape of therapy for AML?

Dr. Sallman:

Yeah, it’s really transformed it, and it’s really a constantly evolving paradigm. We have updated classifications; most people utilizing the ELN system.

So, based on both cytogenetic and molecular factors, you can ultimately go into good risk, intermediate risk, adverse risk. In general, for fit patients for good risk, we focus on curative intent, ideally with chemotherapy alone. For intermediate and adverse, typically we’re incorporating allogeneic stem cell transplant. So, that’s one of the main things that really guides treatment really from the beginning and throughout.

Then, I think really where it’s evolving is personalized therapy. So, it’s really not a one-size-fits-all treatment paradigm, it’s you have mutation A, B, you’re this age, this fitness, and we put all those things together to ideally come up with the best treatment plan for the patient.

Katherine:

Is molecular testing standard following an AML diagnosis or is this something that patients should ask for?

Dr. Sallman:

It definitely should be standard and I think the challenge is when you say the word “molecular,” it means lots of things to different people. I think in the community, as targeted medications were first approved, so this was with FLT3 inhibitors, subsequently IDH1 and IDH2 inhibitors, I think people are realizing yes, we have to send these sequencing panels, but there’s a potpourri of choices from a lot of different commercial vendors.

Really the key and one of the main messages we try to get across is you really have to assess for both FLT3 as well as really a comprehensive next-gen sequencing panel in order to cover all of the relevant genes at diagnosis and likely at other time points such as relapsed or refractory disease.

So, there’s no question, it’s standard, although unfortunately, it’s still not uncommon where the comprehensive panels are not sent and you’re left with somewhat not a complete picture for your patients. Since we’re personalizing everything, it’s really quite critical to have these data.

Katherine:

Yeah. How does inhibitor therapy work to treat AML?

Dr. Sallman:

So, you have a gene that turns on and turns off as we go, but with the mutation, it’s basically turned on all the time. Then, you can have targeted pills that basically turn it off. Most commonly this is done, there’s the active

or energy site for these different genes, and so these therapies can really specifically block that. I wouldn’t say that’s the only mechanism. There are IDH1 and IDH2 inhibitors and they’re very specific for those mutations. Each mutation may have a little bit different end biology. In general, you have mutation A, and we’re going to turn it off with drug that inhibits A.

Advocating for Key AML Testing: Advice From an Expert

Advocating for Key AML Testing: Advice From an Expert from Patient Empowerment Network on Vimeo.

Dr. Hetty Carraway, an AML specialist at Cleveland Clinic, shares advice on advocating for yourself when diagnosed with AML, underscoring the importance of asking questions, and including your caregiver as part of the conversation.

Dr. Hetty Carraway is Director of the Leukemia Program at Cleveland Clinic. Dr. Carraway cares for patients with acute leukemia and bone marrow failure states. Learn more about Dr. Carraway, here.

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Transcript:

Katherine:

What advice do you have for patients when it comes to asking for appropriate testing and speaking up in their own care?

Dr. Carraway:            

This is so important. I think patients are leery to stir the pot or be difficult. I think coming from a place of inquiry, teach me about this, that, or the other thing, help me understand this, that, or the other thing – I would like you to show me why this decision or talk with me about why this decision versus another decision might be better for me compared to somebody else.

I can’t underscore the importance of advocating for yourself and asking questions about why am I getting this drug? What are the side effects to this drug? What is my prognosis? What is different about my case versus somebody else’s situation? How do I best prepare myself in getting ready for the therapy that I’m about to go through?

Those are all important questions that patients should ask. They should certainly have people, if possible in their family be advocates for them. I welcome that, and I think that that’s a really important part of going through this type of therapy for any patient. Your physician should welcome having your involvement in that. Don’t be shy about that. It’s your health, and any investment in that the most important people in that is inclusive of you and your caregivers. They should be a welcome part of the team.

Understanding AML Induction and Consolidation Therapy

Understanding AML Induction and Consolidation Therapy from Patient Empowerment Network on Vimeo.

Dr. Hetty Carraway, an AML specialist at Cleveland Clinic, provides an explanation of the role of induction and consolidation therapy in AML patients.

Dr. Hetty Carraway is Director of the Leukemia Program at Cleveland Clinic. Dr. Carraway cares for patients with acute leukemia and bone marrow failure states. Learn more about Dr. Carraway, here.

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Transcript:

Katherine:

Would you define induction therapy and consolidation therapy and tell us what the differences are?

Dr. Carraway:            

For most patients that are diagnosed with an acute myeloid leukemia, over the last 30 to 40 years we’ve used an intensive chemotherapy regimen that we call induction. Induction means that we’re trying to get the leukemia into remission with an intensive chemotherapy regimen. Classically, that has been two agents; one, a cytarabine based regimen along with an anthracycline, either idarubicin, danorubicin, or some anthracycline that’s similar.

Now, the cytarabine based therapy is a continuous infusion over seven days. The anthracycline is given over three days as an intravenous IV push, and so that’s why it’s kind of been nicknamed seven and three – seven days of cytarabine and three days of another anthracycline.

Now, that has constituted the induction intensive regimen in the hospital with the idea that that leukemia gets under control and goes away. More recently for patients, they can receive therapy that is not this inpatient, in-hospital, induction chemotherapy but rather use oral therapy combining with venetoclax, which is a Bcl-2 inhibitor, along with azacitidine, which is either IV or subcutaneous given to patients over seven days. The oral, venetoclax is every day.

That type of induction can also be given and is now an outpatient regimen and more often offered to patients that are older, over the age of 75.

That, too can be considered induction with the idea that once a patient is diagnosed with leukemia this regimen is started, and after one month or even two months on venetoclax plus azacitidine patients’ leukemia can get into what we call remission, where the blast percentages are less than 5 percent. Then, normal hematopoiesis of platelets being greater than 100,000 and a neutrophil count greater than 500 or 1,000, and the patient is then transfusion-independent.

In general, induction chemotherapy is that first round of chemotherapy that’s trying to get the leukemia under control.

Consolidation chemotherapy is when you use subsequent cycles of chemotherapy to keep the leukemia under control because we know that if we don’t continue to give some continuation of therapy that the small, little seeds of leukemia will re-emerge and leukemia will relapse.

Key AML Testing for Better Care: Understanding Prognosis and Treatment Choices

Key AML Testing for Better Care: Understanding Prognosis and Treatment Choices from Patient Empowerment Network on Vimeo.

After an acute myeloid leukemia (AML) diagnosis, additional tests must follow to determine prognosis and treatment options. Dr. Pinkal Desai explains key tests that aid in choosing optimal care for each patient. 

Dr. Pinkal Desai is Assistant Professor of Medicine at Weill Cornell Medical College and a hematologist specializing in acute myeloid leukemia (AML) at Weill Cornell Medicine. Learn more about Dr. Desai, here.

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Transcript:

Katherine:      

Other than a complete blood count, what additional testing should take place following an AML diagnosis?

Dr. Desai:                

So, a blood count or CBC is just a hint that there might be AML. It’s certainly not diagnostic.

But when you see that there are some abnormalities in blood count, and there might be the presence of these immature cells or blasts in circulation, there is suspicion that this is acute myeloid leukemia. The diagnosis, the gold standard for diagnosis, is a bone marrow biopsy, which is a procedure that can be done out-patient or in the hospital, depending on where the patient is. It takes about 15 minutes, where we take a sample out of the hip bone and look at the cells. This is where bone marrow is being made, so you’re going to exactly where the problem lies, and seeing if the blast count is increased.

So, the diagnosis of AML is established when the blast count is over 20 percent in the bone marrows. And normally, it needs to be less than 5 percent.

And if it’s over 20 percent, that’s the diagnosis of AML. Whether it’s over 20 percent in the bone marrow or in the peripheral blood.

It doesn’t matter, one way or the other. This is a diagnosis of AML, but you do need a bone marrow biopsy to confirm diagnosis of AML.

Katherine:                  

What about genetic or molecular testing? Is that done?

Dr. Desai:                   

AML diagnosis is just one part or the first step of saying somebody has leukemia. There is a slew of other tests that are important, and we generally consider, within the genetic tests, we generally consider two kinds of testing. One is the cytogenetics, or the karyotype analysis, which looks at the chromosomes in our bodies.

So, leukemia can be associated with big chromosomal changes, and that’s important to recognize. And the second one is the molecular testing, and we’ll go over both of them.

The chromosomes, or the karyotypic analysis, the vast majority of leukemia patients have a normal chromosome type, but there are certain recurrent abnormalities in chromosomes that we see in leukemia, and that’s important to know for a variety of reasons: treatment decisions, prognostication.

And the second part of it, the molecular, these are actually genetic routine analysis, and this is not somebody – it doesn’t mean, when we say genetic testing, it’s not the patient’s own normal genetic type. So, we’re not looking for what they have inherited. Most of leukemia is actually a random event, and it’s not inherited. We’re talking about genetic damage that the leukemia cells have within themselves.

It gives us the signature of the leukemia, and it helps us understand what genetic abnormalities are present in the leukemia. There are several panels, 50 to 100 genes, but there’s usually recurrent genetic damage that leukemia cells have.

And you want to know that, because again, like karyotype, this is important in treatment decisions, and also in the prognostication and prediction in the future.

Being Pro-Active in Your Care: Key AML Testing to Advocate For

Being Pro-Active in Your Care: Key AML Testing to Advocate For from Patient Empowerment Network on Vimeo.

AML specialist Dr. Naval Daver discusses essential testing for AML patients and suggests key questions that patients should ask their doctor during clinic visits. 

Dr. Naval Daver is an Associate Professor in the Department of Leukemia at The University of Texas MD Anderson Cancer Center. More about Dr. Daver here.

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Transcript:

Katherine:                   

Well, let’s talk about patient advocacy. What are some of the key tests that patients should ask for after they’ve been diagnosed?

Dr. Daver:                    

The key things that patients should want to get the information is: 1) Knowing the bone marrow blasts.

I mean, that’s really basic. Just knowing what leukemia it is. What are the blast percentage? 2) Is, I think, chromosome analysis is very critical to get that information and to make sure we’re not missing acute promyelocytic leukemia, or core-binding factor leukemia, which have different treatments and very favorable outcomes, and would never, in general, never require a allogenic transplant. At least in majority of cases.

And 3), which is the one where we still see that it may sometimes not be available or be missed, is molecular testing.

I think it’s very critical to request molecular testing. And among molecular testing, especially FLT3, maybe IDH1 and IDH2, and TP53.

So, I think these are the most important data sets. Cytogenetics, key molecular mutations, bone marrow blasts, and confirmation of the type of leukemia before we embark on any treatment.

Katherine:                   

How can patients feel confident, do you think, in speaking up, and becoming a partner in their care?

Dr. Daver:                    

When you go for the clinic visits, just to have a list of your questions written down and having them prepared and prioritizing them. I always say, have your top-three questions ready.

We’ll try to do the others. But we’ll do the top three. And I think, when you have a new diagnosis of AML, the top three should be: what is the type of leukemia I have, and what are the bone marrow blasts? Number one. Do we have any chromosome and molecular information? Number two. And number three: Are there any specific treatments for my specific AML based on that chromosome molecular information? Or do we need additional information, and can we wait for that safely? I think these are the three very reasonable questions which, I think again, most leukemia experts will automatically be discussing this.

But, I think, for a patient, I think that’s important information to make sure they get before proceeding. If there’s time, the fourth question will be: Is – Are – Do we have a choice between high intensity, low intensity? And if we do, what are the pros and cons? In some cases, there may be a choice. In some cases, it may very clear that high intensity is the way to go, or low intensity is the way to go. But still, I think it’s often good to discuss that with your physician.