What do acute myeloid leukemia (AML) patients need to know about triplet therapy? Dr. Naval Daver from the University of Texas MD Anderson Cancer Center shares his perspective. Learn about the meaning, progress, and outlook for triplet therapy.
[ACT]IVATION TIP from Dr. Daver: “Some of the early data with the FLT3 inhibitor as well as the CD47 antibody triplets are showing very, very promising activity and are now moving into larger multi-center and randomized studies.”
Dr. Daver, what does triplet therapy in AML mean for the future?
Dr. Naval Daver:
So when we say triplet therapy, what we’re really thinking about is building on the existing FDA-approved combination of HMA venetoclax (Venclexta), so as a background venetoclax, showed a CR, CRI which is a complete remission rate of about 70 to 75 percent with the median survival in 15 months.
This was in older patients, about 75 years in age, those who were not considered fit for intensive chemotherapy, although this was a major step forward in comparison to what we have seen with traditional low intensities with azacitidine (Onureg or Vidaza), decitabine (Dacogen) alone, we do see the three-year survival is about 25 to 30 percent.
So this is progress compared to 10 percent long-term survival, we used to get a decade ago, but, of course, we want to improve on that. Also, a molecular analysis of data has shown that there are certain molecular subsets that don’t respond as well to azacitidine, venetoclax or if they respond they relapse quickly these include FLT3 mutated and the TP53 mutated as well as potentially MLL rearranged.
And so here we have started incorporating the targeted therapies like inhibitors like the menin inhibitors like CD47 antibodies to target those specific high-risk or bad molecular cytogenetic groups, and we are seeing that with the combinations of these three drugs, especially for those particular molecular subsets.
So azacitidine and venetoclax for FLT3 inhibitor for FLT3 mutator, azacitidine, and venetoclax, magrolimab for TP53 mutated, the response rates that we’re getting, as well as the depth of response and the early trends towards survival are looking very, very promising compared to what we have seen with azacitidine venetoclax alone.
So we believe, and I personally believe that these three drug combinations, the so-called triplets will actually be eventually the way to go forward now, that means that one has to realize that when you add a third drug, there is a cumulative myelosuppression, azacitidine-venetoclax is already a myelosuppressive regimen.
Yes, it’s manageable, but it is myelosuppressive. And the third drug, this can become more cumulative, so we have been working for the last three, four years and continue to work on those optimization because since we are seeing true synergy but pre-clinically and what we think in the clinic, we are not needing to give full doses and we’re doing reduced durations of venetoclax and those with FLT3 inhibitor, and now we feel that some of those triplets are actually giving very, very, very good efficacy.
There’s a lot of discussion in the community of whether we need to combine all two drugs up front or can be sequence these drugs or can we introduce a targeted therapy based on a molecular escape, and I think a lot of these will have to be evaluated and many of these are being looked at in various trials, but I do think the bottom line is that bringing in your targeted therapy or immunotherapies early on in the frontline setting and some way or the other is probably where you’re going to get the most bang for the buck and the most benefit in curing patients long-term rather than trying to reserve them for the salvage, because in salvage AML historically, nothing has really been able to improve the long-term cure rate significantly.
So the activation tip for this question is that now with the identification of certain molecular subsets that have poorer outcomes with the HMA venetoclax, we have started incorporating targeted and immunotherapies in the earlier settings, either up front in the three drug combination or an early sequential approach.
And we believe that with such combinations, we may be able to achieve deeper remission and longer responses. Some of the early data with the FLT3 inhibitor as well as the CD47 antibody triplets are showing very, very promising activity and are now moving into larger multi-center and randomized studies.
https://powerfulpatients.org/wp-content/uploads/What-Does-Triplet-Therapy-in-AML-Mean-for-the-Future-2.png600600Kara Rayburnhttps://powerfulpatients.org/wp-content/uploads/New-Logo-300x126.pngKara Rayburn2023-02-01 15:47:332023-04-20 10:55:07What Does Triplet Therapy in AML Mean for the Future?
Dr. Naval Daver from the University of Texas MD Anderson Cancer Center discusses whether untreated acute myeloid leukemia (AML) can be treated with lower intensity chemotherapy.
[ACT]IVATION TIP from Dr. Daver: “Ask your physician and your oncologist when you’re talking with them about what all the newest therapies are and what would be specifically the best treatment for their specific leukemia with respect to the different mutations.”
Dr. Daver, what are we learning about patients with untreated AML who are ineligible for intensive chemotherapy? Will intensive chemotherapy, a thing of the past, in the near future?
Dr. Naval Daver:
There has been a major shift over the last four or five years towards using lower intensity combinations, such as azacitidine (Onureg or Vidaza) and venetoclax (Venclexta) and patients who are definitely about 75 and not fit for intensive induction. I don’t think anybody debates in that population, but even in patients 60 to 75 years away, you are borderline, and maybe we could give intensive induction chemotherapy and get patients to through it with support of care, antifungals, antibiotics by close monitoring, but we’re seeing similar remission rates with azacitidine (Vidaza), venetoclax (Venclexta), much less toxicity, less mortality, and especially the goal is to get a number of these patients to allogeneic stem cell transplant, which it is.
Then we feel that the lower intensity, better tolerated, smoother remission getting patients in a good condition an allogeneic transplant may be the way to go now, of course, to really make the standard of care, we have to look at this in a randomized fashion to make sure that what we believe is actually what the data is going to confirm, so there is an ongoing randomized study looking at the azacitidine and venetoclax intensity versus the traditional intensive chemotherapy called three plus seven in patients 18 to 65 years of age, and that…then you will, I think, give us a lot of information and data as for whether we can start for placing intensive chemotherapy for a large proportion or majority of AML patients, even those who are younger.
Today, I don’t think that in terms of chemotherapies are a thing of the past, I think those patients who are below 60 or even those who are 60 to 65, who are routinely doing intensive induction chemotherapy, one has to realize that the five-year survival for many molecular subsets are close to 50 to 60 percent with intensive induction chemotherapy, whereas with HMA venetoclax in the older unit, we’re looking at three to five-year survival rates of about 30 percent, so we have still not seen data and younger patients with Hamas to be convinced that this will replace intensive chemotherapy altogether, I think the signal suggests that there is a potential for it to do so, especially with the use of allergenic tensor as plan, which we’re using quite frequently and…or maintenance.
But that has not yet been established. So I would still say we do use intensive chemo in those who are young and fit, so my activation tip for this is that there has been a lot of progress in the lower intensity therapies over the last six or seven years.
A decade ago would not even be asking whether there’s anything that can replace intensive chemo today we do have data with HMA venetoclax that suggest that it may be as good as intensive chemo looking at the response rates MRD negativity, and especially with three drug combinations where adding targeted therapies to HMA venetoclax, those response rates and depth of response looking as good, if not better, than intensive chemo there are randomized studies ongoing that are going to be looking at intensive chemotherapy versus HMA venetoclax and if those show equivalents or superiority for HMA venetoclax, I think in the next five, six years there will be a huge shift towards less use of intense and chemotherapy in the frontline setting, but we’re not there yet.
https://powerfulpatients.org/wp-content/uploads/A-Look-at-Lower-Intensity-Chemotherapy-in-Untreated-AML.png600600Kara Rayburnhttps://powerfulpatients.org/wp-content/uploads/New-Logo-300x126.pngKara Rayburn2023-02-01 15:34:362023-04-20 10:55:15A Look at Lower Intensity Chemotherapy in Untreated AML
Why are acute myeloid leukemia (AML) clinical trials so critical? Dr. Naval Daver from the University of Texas MD Anderson Cancer Center shares his perspective about clinical trials. Learn how clinical trials help both current and future AML patients.
[ACT]IVATION TIP from Dr. Daver: “Clinical trials are critical, both for the patients themselves to get access to what we call tomorrow’s medicine today as well as potentially to help move the entire field forward.”
Dr. Daver, what is the importance of clinical trial participation as it relates to breakthroughs in AML, and what advice do you have for AML patients considering a clinical trial?
Dr. Naval Daver: Clinical trials are critical for the progress that we have already seen an acute myeloid leukemia, the drugs that have been improved in the last six, seven years, including venetoclax (Venclexta), FLT3 inhibitors, midostaurin (Rydapt or Tauritmo), gilteritinib (Xospata), hopefully quizartinib other emerging targeted therapies…IDH1, IDH2 inhibitors, menin inhibitors, CD47 antibodies, we’ve learned about all of them and have got approvals and many of them through the ongoing clinical trials.
I think it’s very important for patients to realize that in most large academic centers, we will only participate in the clinical trial if we think it has the potential to improve the standard of care in the future. There’s very little incentive for academic investigators or clinical investigators, such as myself, we’re very, very busy to get involved in a trial if we don’t think that it has the potential to improve the outcome or change the nature of AML therapy in the future, so a lot of patients often ask me, Oh, I want the randomized or placebo arm. There is no real placebo alone in any AML study that I’m aware of, most of the studies will use standard of care, which is what you would’ve gotten wherever you were getting treatment at home, locally, community hospital versus a standard of care plus where the new drug will be added, whether it’s the FLT3 inhibitor, the CD47 antibody, the menin inhibitor
So there’s a good chance, 50 percent that you’re going to get standard of care plus that we think has the potential to improve the outcome, of course, you never know, that’s what you do, the trial, but we think based on the previous pre-clinical data to pass when the page to deliver this looks like it will improve the outcome for this molecular or site group versus standard of care, which is what you will have gotten.
So I think it’s important to realize that you will never get less on standard of care and any clinical trial, at least in the AML field, and at least in our experience that they understand.
Now, beyond that, there’s also a Phase I in two states, and those are the ones that we focus on quite a bit at MD Anderson, these are single arm studies, meaning everybody will get the investigational agent combo, so azacitidine (Onureg or Vidaza) and venetoclax (Venclexta), we were one of the first sites to work on and leave this study and all of our patients in 2015, 2016, we’re getting this regiment, it was not approved to much later in 2019, 2020, and for those three, four years, our patients, hundreds of patients were able to get that combination, which probably cured many, many more than would have been cured to the standard of care until, of course, I’ve got a pro four years later, but for an option, of course, you cannot wait four years, so I’m a huge believer in clinical trials, I think it’s really, really important, both for the patients themselves as well as for the field, for us to be able to move the entire AML field forward for the next decade, and I would very strongly consider looking at or discussing with your treating physician trial options, and then you can look at them on your own through clinicaltrials.gov, or other sites with leukema and lymphoma that give a lot of information on clinical trials.
So my activation tip related to this question is that I think clinical trials are critical, both for the patients themselves to get access to what we call tomorrow’s medicine today as well as potentially to help move the entire field forward, all of the clinical drug approvals in progress we have seen in AML in the last six, seven years have come through clinical trials that patients in the past have agreed to kindly participate and helped probably themselves by getting better medications and combinations, and definitely the field to move forward, so definitely a big proponent for clinical trials.
What acute myeloid leukemia (AML) treatments are available for high-risk patients? Dr. Naval Daver from the University of Texas MD Anderson Cancer Center discusses various mutations, potential for cure, and clinical trials. Learn about the outlook for high-risk AML treatments.
[ACT]IVATION TIP from Dr. Daver: “The best way to get up to these agents is to go on clinical trials and incorporate these therapies, both in the frontline setting as well as in the relapsed refractory setting.”
Dr. Daver, what treatment strategies are available for high-risk AML patients?
Dr. Naval Daver:
High-risk AML patients includes a group of a number of different mutations, and cytogenetic abnormalities, this includes TP53 mutation, as well as adverse cytogenetics, which includes chromosome 17, deletion 5, deletion 7, as well as complex carrier type. This entire group historically had a poor outcome and has had limited responses to traditional intensive chemo, even if we achieve responses there, usually short-lived.
We do have some patients where we are able to achieve remission with intensive chemo or with azacitidine-venetoclax (Vidaza-Venclexta) and transition and transmission them transplant with about 25 to 30 percent potentially achieving a long-term remission and possible cure.
But aside from that, there is very little potential to cure these patients with just traditional intensive chemo, venetoclax in this area, there has been developments with the emergence new class of immunotherapy drugs, called CD47 antibodies, the one that’s most advanced in this field is a drug called magrolimab, and we are evaluating the drugs such as magrolimab in combination with azacitidine as well as in combination with azacitidine-venetoclax and are seeing high remission rates, both in TP53 mutated and TP53 wild type.
So this pathway that works by activating a macrophages or the immune system to attack the tumor cells, seems to be in some way mutation agnostic with response rates being maintained even in the traditional high-risk subsets, especially such as TP53 and complex cytogenetics for some of the other high-risk groups such as MLL, we’re using targeted therapies like menin inhibitors, and these seem to work well in those patients who have these adverse cytogenetic molecular abnormalities, so there is progress, and we think that the CD47 antibody field and hopefully the main inhibitor feed will be able to improve outcomes in these traditionally molecular cytogenetic subsets.
My activation point related to this question is for high-risk mutations and cytogenetic commonalities such as TP53 complex carrier chromosome 17 MLL, best hope at this time is in clinical trials evaluating novel therapies such as CD47 antibodies and menin inhibitors. These are not yet FDA-approved, but based on emerging data from the ongoing Phase I, II studies, we think that there is a good chance they will be approved in the future.
However, this time, the best way to get up to these agents is to go on clinical trials and incorporate these therapies, both in the frontline setting as well as in the relapsed refractory setting.
https://powerfulpatients.org/wp-content/uploads/A-Look-at-Treatment-Strategies-for-High-Risk-AML-Patients.png600600Kara Rayburnhttps://powerfulpatients.org/wp-content/uploads/New-Logo-300x126.pngKara Rayburn2023-02-01 15:10:362023-04-20 10:48:00A Look at Treatment Strategies for High-Risk AML Patients
How have acute myeloid leukemia (AML) treatment approaches expanded for older and high-risk patients? Dr. Naval Daver from the University of Texas MD Anderson Cancer Center shares insight about additional treatment options. Learn about the potential for long-term cures for these patient groups.
[ACT]IVATION TIP from Dr. Daver: “There is a dramatic progress, especially in the treatment of older unfit AML with the approval of the azacitidine-venetoclax combination.”
Dr. Daver, for older and high-risk AML patients, how are the treatment approaches expanding?
Dr. Naval Daver:
In older and high-risk AML, the major approval has been the combination of azacitidine (Onureg or Vidaza) and venetoclax (Venclexta), which is a BCL-2 inhibitor, the regimen was evaluated in a large Phase III study called the VIALE study, where we looked at the standard of care for the last two decades for older unfit AML, which azacitidine alone versus the combination of azacitidine and venetoclax and this combination showed a three times higher remission rate, 75 versus 28 percent overall remission rate as well as an improvement in overall survival and long-term survivors.
So this has led to great progress with now remission rates of 75 percent achievable in older unfit AML and many of them being durable at three years with ongoing follow-up, so this has really opened the door for us to be able to treat patients up to 75, 80, 85 years of age with effective therapy given the three parts of these to achieve remission, which is usually associated with freedom from transfusion improvement, quality of life, improved energy, less time in the hospital, less infections.
The other progress now is coming from the use of targeted therapies as well in these populations, and even though the HMA venetoclax or azacitidine combination is doing very well.
We now have data, in fact, from the ASH 2022 December meeting that at three years, about 25 percent or so I would still remain alive with azacitidine was even or 8 percent, now it’s 25 percent. But, of course, we want to do much better than that, and so this is where we are incorporating the targeted therapies, the FLT3 inhibitors, the IDH1, IDH2 inhibitors, menin inhibitors, and immunotherapies onto the backbone of azacitidine-venetoclax, which we hope will further improve that long-term survival cure from 25 to hopefully 50 to 60 percent and beyond.
So a lot of progress, you know, going from less than 10 percent, a 30 percent survival, long-term, and I think in the next few years, even up to 50 percent with some of these new combinations. The activation tip related to this question is that there is a dramatic progress, especially in the treatment of older unfit AML with the approval of the azacitidine-venetoclax combination.
This regimen is now giving high remission rates, which approximate remission rates that are seen with traditional intensive chemotherapy without the mucositis and toxicities and better volatility, and we are now working to further improve the remission and the durability of this dominant of initial.
…potentially adding targeted therapy such as FLT3 inhibitors, IDH1, IDH2 menin inhibitors, and we think that potentially in the next decade, we could be achieving long-term cures in a large proportion of older unfit AML, which was something one could just dream of a decade ago.
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.“
Dr. Daver, for newly diagnosed AML patients, what are the latest and most promising available therapies?
Dr. Daver:
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.
https://powerfulpatients.org/wp-content/uploads/What-Promising-AML-Treatments-Are-Available-for-Newly-Diagnosed-Patients.png600600Kara Rayburnhttps://powerfulpatients.org/wp-content/uploads/New-Logo-300x126.pngKara Rayburn2023-02-01 14:39:442023-05-22 10:37:42What Promising AML Treatments Are Available for Newly Diagnosed Patients?
How are acute myeloid leukemia (AML) patients assessed for intensive chemotherapy? Dr. Catherine Lai from Penn Medicine explains eligibility criteria. Learn factors that impact patient eligibility and treatment options for AML patients who are categorized as ineligible for intensive chemotherapy.
[ACT]IVATION TIP from Dr. Lai: “Talk with your physician about how they will determine whether or not you are fit or unfit for intensive chemotherapy.“
Okay, Dr. Lai, what are we learning about patients with untreated AML who are ineligible for intensive chemotherapy?
Dr. Catherine Lai:
To define ineligible for intensive chemotherapy, I think that that is a moving target because historically, we would define patients as eligible for intensive or less intensive chemotherapy based on an age cut-off. And as the population is becoming more fit and is also getting older, what I would like to say is that we should use physiologic age, not chronologic age to determine who is eligible for intensive chemotherapy, and that is…in terms of how that is assessed, that is not uniformly done.
But, in general, it takes into account how active a patient is and what they’re able to do on a day-to-day basis, so mostly their physical function, we also take into consideration their cognitive function as well, but to a lesser extent.
So, for patients who are ineligible for intensive chemotherapy, the standard practice would be the combination of azacitidine (Onureg or Vidaza) or decitabine (Dacogen), both of which are hypomethylating agents in combination with venetoclax (Venclexta), and that combination has really changed the landscape in terms of how we treat patients, it can be given as an outpatient, so it’s much better tolerated and has fewer side effects compared to intensive chemotherapy.
So the activation tip here is to talk with your physician about how they will determine whether or not you are fit or unfit for intensive chemotherapy.
https://powerfulpatients.org/wp-content/uploads/Assessing-Untreated-AML-Patients-Who-Are-Ineligible-for-Intensive-Chemotherapy.png600600Kara Rayburnhttps://powerfulpatients.org/wp-content/uploads/New-Logo-300x126.pngKara Rayburn2023-02-01 13:28:252023-04-20 10:50:00Assessing Untreated AML Patients Who Are Ineligible for Intensive Chemotherapy
What are the latest treatments in acute myeloid leukemia (AML)? Dr. Catherine Lai from Penn Medicine discusses the increase in available AML treatments. Learn about combination therapies and treatment options for patients with IDH1, IDH2, and FLT3 mutations.
[ACT]IVATION TIP from Dr. Lai: “Ask your physician and your oncologist when you’re talking with them about what all the newest therapies are and what would be specifically the best treatment for their specific leukemia with respect to the different mutations.”
Dr. Lai, for newly diagnosed AML patients, what are the latest available therapies?
Dr. Catherine Lai:
That’s a great question. The last, I would say, a handful of years have really seen a dramatic increase in the number of new treatment options for AML patients, specifically since 2017, the FDA has approved 10 new drugs for AML, that’s both for patients who are newly diagnosed and in the relapsed refractory setting.
And so what I would say is that we break our patients into two different categories in terms of being able to tolerate intensive chemotherapy versus non-intensive chemotherapy, and as well as looking at specifically targeted mutations that patients may have so that we can better understand the disease but also treat these patients more specifically to try to maximize efficacy while minimizing toxicity.
And so specifically, I would say for patients who have FLT3 mutations, there are drugs such as midostaurin (Rydapt) and gilteritinib (Xospata), there are drugs for mutations in IDH1 and IDH2, enasidenib (Idhifa) and ivosidenib (Tibsovo) and recently, or in December of 2022, olutasidenib (Rezlidhia)was also approved for IDH1-mutated patients as well.
We have a general targeted agent that’s an oral chemotherapy that probably has made the biggest difference in how we treat patients called venetoclax (Venclexta), and that’s used in combination with azacitidine (Onureg) or decitabine (Dacogen), or low dose cytarabine (Cytosar).
Although most commonly in the United States, we use azacitidine or decitabine in combination with the venetoclax, and that I think is really what I’d say has been practice changing for the most part, in terms of both increasing the complete remission rates as well as the overall survival for these patients. So I would say there are a lot of new drugs. It is all very exciting.
The biggest activation tip in terms of takeaways is to ask your physician and your oncologist when you’re talking with them about what all the newest therapies are and what would be specifically the best treatment for their specific leukemia with respect to the different mutations.
Art:
Okay. Dr. Lai, what are the latest approaches to combination chemotherapy to treat AML?
Dr. Catherine Lai:
So, the latest approaches for combination chemotherapy would be in the combination of a hypomethylating agent, azacitidine or decitabine in combination with venetoclax. This is the most practice-changing combination that has been approved since 2017 to 2018, and now more recently, what’s been happening is now looking, so we call that a doublet, and now it’s been looking at…what we’ve been studying is now whether or not triplets are more effective, when we do have triple combinations, we do see an increase in toxicity and so on, we haven’t come up with the right algorithm in terms of what that exact formula should be, but often I think about it in kind of a three-fold in terms of wins the right time, what’s the right combination, and how do we see in the drugs, and I think the sequencing is the biggest thing that we don’t yet know, and how do we combine the two different..two different drugs in a way, and how do we give them in a way that will maximize efficacy, will minimize the toxicity, so as an example is, Do we give two drugs for a specific period of time, and then after some determined time point, do we…
And change it to a different set of combination of drugs to make sure that patients are getting the most benefit of the drugs, and we don’t know that yet, but I think that that’s where the general direction…where the landscape is heading, so the activation tip I would take home from this is just to have a conversation with your physician about potential clinical trials and how combination therapies are being used.
There has been another significant advance in the treatment of Acute Myeloid Leukemia (AML) at least for the small subset of patients (6-10%) who have a mutation in one of their genes called IDH1 (isocitrate dehydrogenase 1).
Until 5-7 years ago, the typical initial treatment (called induction) for patients with AML consisted of relatively high doses of cytarabine (Ara-C) and another chemotherapy called an anthracycline (usually either daunorubicin or idarubicin). Cytarabine is given as a continuous infusion for seven days and a daunorubicin or idarubicin is given on the first 3 days (this is commonly referred to as “7 + 3“regimen). There are other regimens that are sometimes used although most contain cytarabine. This regimen is effective, but quite toxic and usually reserved for healthier fitter patients (generally under 65 without comorbidities like diabetes, or certain heart conditions).
In 2018, the Food and Drug Administration (FDA) approved venetoclax and azacitidine for use in older patients or those with comorbidities. Earlier this year, FDA approved Iivosidenib (used in combination with azacytidine) for newly diagnosed AML patients an IDH1 mutation. The approval was for “adults 75 years or older, or who have comorbidities that preclude use of intensive induction chemotherapy”. This was based on a clinical trial reported in the New England Journal of Medicine (NEJM): Ivosidenib and Azacitidine in IDH1-Mutated Acute Myeloid Leukemia,. Ivosidenib is not a brand new drug, it was approved in 2018 for relapsed or refractory AML.
The current approval was based on a global, double-blind, randomized, placebo-controlled trial comparing AML patients with an IDH1 mutation treated with ivosidenib and azacytidine with patients treated with azacytidine alone. The primary end point of the trial was event-free survival (EFS), defined as the time until treatment failure (i.e., the patient did not have complete remission by week 24), relapse or death. The first group of patients, who received ivosidenib had an EFS at 12 months of about 37% versus 12% in the placebo group. In addition, the median overall survival (that is half of the patients lived at least this long) was 24.0 months with ivosidenib and azacitidine versus 7.9 months with azacitidine alone. This is a big difference, although there is still a lot of room for improvement. In addition, there were fewer infections in the ivosidenib, group although there were more incidences of low white blood counts (neutropenia) and bleeding in that group.
While this is good news, showing ivosidenib (Tibsovo) and azacitidine (Vidaza) is better than azacitidine alone, most patients with AML with an IDH1 mutation who are not good candidates for intensive induction chemotherapy during the time period of the trial would likely have been treated with azacitidine and venetoclax (Venclexta). The combination has been shown to be much more effective than azacitidine alone. My guess is that azacitidine alone was chosen as the comparison, since the ivosidenib trial started enrolling patients in March 2018 (presumably the protocol for the trial was completed several months before that) and venetoclax was not approved until November, 2018. The question remains, which is better ivosidenib and azacitidine or azacitidine and venetoclax. I believe we will probably never know. Given that AML is already a rare disease and no more that 10% of AML patients have an IDH1 mutation, it is not likely such a trial would be done. Instead, it seems more likely that trials will look at the 3-drug combination of ivosidenib, venetoclax and azacitidine. Perhaps a trial with 3 arms may be done, comparing azacitidine with ivosidenib, or venetoclax or both. I hope the 3-drug combination will be more effective than either ivosidenib or venetoclax combined with azacitidine. If the side effects are not much worse, then standard therapy for AML patients with an IDH1 mutation who are not good candidates for intensive chemotherapy would become the 3-drug combination. This would happen faster than first comparing ivosidenib to venetoclax and then comparing the better of those two to the 3-drug combination. For younger healthier patients, ivosidenib is being combined with intensive chemotherapy in clinical trials.
Further reading:
Ivosidenib and Azacitidine in IDH1-Mutated Acute Myeloid Leukemia, the original article from the New England Journal of Medicine (N Engl J Med 2022; 386:1519-1531).
Art Flatau lives in Austin, Texas with his wife Gretchen. They have 2 grown children. He was diagnosed with Acute Myeloid Leukemia (AML) in 1992 at the age of 31, while still in graduate school at the University of Texas. Gretchen and Art’s kids were 2 and 4 at the time. He received chemotherapy (both induction chemotherapy and then consolidation). After graduating with a Ph.D. in computer science in December 1992. He relapsed in early 1993 and then had a bone marrow transplant (BMT), his brother was a perfect match.
https://powerfulpatients.org/wp-content/uploads/Ivosidenib-and-Azacitidine-for-IDH1-Mutated-AML.png600600Art Flatauhttps://powerfulpatients.org/wp-content/uploads/New-Logo-300x126.pngArt Flatau2022-11-16 09:57:242023-05-21 18:19:45Ivosidenib and Azacitidine for IDH1-Mutated AML
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.
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.
https://powerfulpatients.org/wp-content/uploads/What-Is-Low-Intensity-AML-Therapy-1.png600600Kara Rayburnhttps://powerfulpatients.org/wp-content/uploads/New-Logo-300x126.pngKara Rayburn2021-08-25 13:52:472021-08-25 13:52:47What Is Low-Intensity AML Therapy?
AML expert Dr. Jeffrey Lancet shares the latest news from the 2020 American Society of Hematology (ASH) annual meeting. Dr. Lancet sheds light on headlines from the meeting including FLT3 inhibitor research, combination therapies with venetoclax, a promising inhibitor therapy, and shares his optimism about the future of AML treatment.
Dr. Jeffrey Lancet is Chair and Program Lead in the Department of Malignant Hematology at Moffitt Cancer Center in Tampa, FL. He is nationally and internationally recognized for his clinical research in the field of acute leukemias. Learn more about Dr. Lancet, here.
Hello, and welcome. I’m Katherine Banwell. Today we’ll discuss the latest news from ASH 2020 and how AML patients can advocate for personalized care. Joining me is Dr. Jeffrey Lancet. Welcome. Would you please introduce yourself?
Dr. Lancet:
Hi, sure. My name is Dr. Jeff Lancet. I’m at the Moffitt Cancer Center in Tampa, Florida, where I am the Chair of the Malignant Hematology Department. We spend a lot of time treating patients and conducting clinical trials of Acute Myelogenous Leukemia.
Katherine:
Okay. Thank you. Dr. Lancet, the American Society of Hematology Annual Meeting just closed. What are the AML headlines from this year’s meeting?
Dr. Lancet:
Yeah, so as usual, AML was a very busy area for clinical presentations this year at the ASH meeting focusing largely on novel and targeted therapies.
I don’t believe that there were many practice changing developments per se, but rather discussions about many promising therapeutic strategies that are still under development and moving forward rapidly largely in the areas of targeted therapy, low intensity therapy, measurable residual disease and things of that nature.
Katherine:
What does this research news mean for patients?
Dr. Lancet:
Well, I think that there’s a lot to be encouraged about and maybe I’ll take the time to review some of the highlights in what was presented with respect to some of the novel therapeutic approaches that many of our patients can look forward to receiving in the not too distant future.
So, we often talk about you know, targeted therapies and, of course, one of the major targets over the years has been that of mutated FLT3 which is one of the most common mutations in AML.
And at this meeting we saw several presentations on clinical trials resolved to utilizing inhibitors of FLT3, with some emphasis on the most recently approved second generation drug called gilteritinib.
There were I thought three major presentations focusing on gilteritinib and one was an update on a randomized Phase III trial comparing gilteritinib plus azacitidine versus azacitidine alone in newly diagnosed unfit for induction chemotherapy patients with FLT3 mutations, preliminarily showing good tolerability and high composite complete response rates in the combination on.
There was another trial of gilteritinib plus venetoclax in relapsed and refractory FLT3 mutated AML.
And what was interesting was that a very high percentage of patients achieved response with this combination of gilteritinib plus venetoclax, many of whom were heavily pretreated previously and many of whom had also gotten prior FLT3 inhibitor therapy during an early stage of the disease. So, the combination of gilteritinib and venetoclax and this more refractive study, it was encouraging to see these promising responses.
And then we saw some data reporting the effects of gilteritinib in combination with more traditional chemotherapy induction with a couple of studies demonstrating both a high complete response rates as well as high rates of mutation clearance of the FLT3 mutation.
So, those were very encouraging data that were presented with respect to the FLT3 mutated AML population.
So, another very important drug that reached the marketplace for AML recently is a drug called venetoclax, which is an inhibitor of a protein called BCL2.
And this drug was recently FDA approved for use in combination with low intensity chemotherapy drugs such as azacitidine or decitabine.
And it seems as though the combination of venetoclax plus one of these hypomethylating agent drugs, azacitidine or decitabine has resulted in very, very strong efficacy signals as recently published in a New England Journal of Medicine paper that reported on the results of the Phase III trial of venetoclax plus azacitidine.
So, that has now become standard of care for older less fit adults with newly diagnosed AML; the combination of venetoclax plus a hypomethylating agent such as azacitidine.
And naturally, there’s been interest in really kind of taking it several steps further to advance the role of these combinations and to also look at additional drugs in combination with venetoclax plus hypomethylating agent therapy.
So, we saw some of that at the ASH meeting this year. One approach would be to take venetoclax and then to combine it with more intensive chemotherapy for perhaps more fit patients or younger patients that could undergo a more intensive program.
So, we saw presentations of venetoclax being combined with a drug called CPX-351, which is a novel liposome formulation of two common chemotherapy drugs that had been approved a few years ago for secondary AML. And we also saw a combination strategy with venetoclax, and a regimen known as FLAG-IDA, which is a commonly used induction regimen in acute myeloid leukemia.
And I think it’s important to recognize that although these trials that combine the venetoclax with more intensive chemotherapy showed signs of good efficacy with good response rates, there were definitely signals of increased toxicity, hematologic toxicity primarily, which is not completely unexpected with venetoclax knowing that it can cause significant lowering of white blood cells and platelets and hemoglobin.
And then finally, there is a lot of interest in, you know, doing these types of combinations with venetoclax in different subsets of AML and one subset of AML that has been very important recently is that of the IDH mutated AML population of patients.
IDH is a fairly common mutation that occurs either in the Isoform of IDH1 or IDH2 and there’s about a 15 to 20 percent incidence of IDH mutations in AML.
Now we do have an inhibitor for both of these types of mutations: ivosidenib for IDH1 and enasidenib for IDH2, but there also appears to be a strong role for venetoclax plus azacitidine in IDH mutated AML.
We saw from a series of patients presented by a physician at MD Anderson looking at outcomes with venetoclax plus azacitidine in IDH mutated AML. And the response rates were very high when you give HMA plus venetoclax to these patients with IDH mutated AML.
But I think more importantly was that there were what we call high intro patient response rates when switching between venetoclax and HMA therapy with an IDH inhibitor containing regimen.
In other words, a patient would have a good chance of responding to the initial therapy and then if or when that therapy stops working, having a good effect from a salvage therapy with the other regimen. So, when you see initially azacitidine plus venetoclax and then had a relapse, the IDH inhibitors worked well and vice versa if you had received an IDH inhibitor and then subsequently received HMA-venetoclax at a later time point that also worked well.
So, it’s encouraging to see that you can potentially sequence these drugs and get continued responses along the way and ultimately we think will help a survivor and keep patients in a better state of health even longer.
So, I just wanted to take a few minutes also and discuss some of the newer more novel therapies that are really hitting or approaching the landscape right now. One of these is called CC486, also known as oral azacitidine or ONUREG. And this drug was shown in recent literature to prolong overall survival in patients who are in first remission from their AML who had received induction chemotherapy.
So, this drug was used as maintenance therapy after a variable number of consolidation regimens. And people who got this ONUREG or oral azacitidine drug as maintenance therapy, it resulted in longer survival compared to those who had received placebo.
And this was presented at last year’s ASH meeting, but this year’s ASH meeting provided an update, a very important update, showing that the overall survival advantage from this drug, this oral azacitidine drug, when used as maintenance was independent of whether a patient had measurable residual disease at the time that they went onto the maintenance therapy.
In other words, whether you had MRD, measurable residual disease or not at the time of the study entry, your responses were still more favorable, your outcomes were more favorable, if you received this oral azacitidine drug.
So, this was FDA approved earlier this year for patients in the maintenance phase of therapy for AML who had gotten prior reduction chemotherapy.
And importantly, this drug was also shown to be able to convert about 25% of patients who were positive for measurable residual disease; convert them from positive to negative. So, even though they were in remission, they had measurable residual disease and this drug in about 25 percent of the cases converted that from positive to negative. So, that’s a very important finding as well.
Another important drug that I think you should keep your eye on is a drug called magrolimab. This is an antibody against a certain type of protein that is present on the immune system cell called the macrophage, and when this magrolimab drug was combined with azacitidine in a recent clinical trial, it was demonstrated very high response rates of over 65 percent.
And, in particular, in patients with P53 mutations, which is a very bad mutation to have in most cancers, including AML, in patients with this high-risk mutation, the combination of magrolimab with azacitidine appears to be effective based upon the early data that we have with high response rates.
And then finally, I just wanted to make mention of another important area in, not really just AML, but in all cancer and that’s outcomes disparities between different races and ethnic groups. And we saw a very important presentation at the plenary session this year where the authors reported outcomes amongst younger patients with AML who were African American compared with Caucasian.
And the data clearly indicated a worse overall survival amongst Black patients compared with white patients under age 60. And this included patients who were enrolled in clinical trials. So, that it appeared that African American patients have a worse outcome than Caucasian patients with acute myeloid leukemia highlighting the need to better understand various risk factors and other factors that play into these disparate outcomes between our Black American population and a white American population, which I think could shed light on additional disease characteristics that may help everybody as well.
https://powerfulpatients.org/wp-content/uploads/AML-Research-Updates_-News-from-ASH-2020-2.png600600GIna Craighttps://powerfulpatients.org/wp-content/uploads/New-Logo-300x126.pngGIna Craig2020-12-17 14:10:392023-01-12 13:07:26AML Research Updates: News From ASH 2020
What factors can help determine the best treatment path for your AML? This animated video walks through important considerations that may help in navigating treatment decisions, including how genetic testing results, treatment goals and patient preference can impact your choice.
Hi, I’m Gina. I’m a nurse practitioner and I specialize in acute myeloid leukemia, or AML.
When diagnosed with AML, it’s important to take steps to get a deeper understanding of your disease, and the available treatment options, so that you can feel confident in your care decisions.
Before we walk through the important steps to decide on a treatment path, I want to remind you that this video is intended to help educate AML patients and their loved ones and shouldn’t be a replacement for advice from your doctor.
OK, let’s get started.
The first step is to understand your diagnosis, so that you can find out what treatments are available to you. Unlike solid tumor cancers, such as lung or breast cancer, AML is not staged. Instead, your physician will use lab testing, including blood and bone marrow tests, to determine the subtype of your AML and if you have any chromosomal abnormalities to determine if your AML is low, intermediate or high-risk.
Knowing your risk can impact your prognosis and help establish the best treatment option for you. If you don’t know your subtype, ask your doctor for the information and if you may need further testing to reach a more accurate diagnosis.
Testing that identifies characteristics unique to YOUR AML can impact your treatment options and determine if a targeted therapy or immunotherapy might be more effective. These tests include:
Molecular testing
Cytogenetic analysis (or karyotyping), and
Fluorescence in situ hybridization also known as a FISH test
Before you start any treatment, it’s essential to insist that you have had relevant testing.
Next, you should understand treatment goals. The first goal of AML therapy is to get into remission. The second goal is to maintain that remission.
Induction therapy, or the first phase of treatment, is meant to induce remission. This first-line treatment kills as much of the disease as possible and returns blood counts back to normal.
Consolidation treatment, also referred to as post-remission therapy, is used to prevent leukemia cells from returning and maintain remission. In some patients, stem cell transplant acts as a consolidation therapy. In others, additional treatment options to maintain remission can be explored.
The next step is to consider your treatment options with your doctor. It’s important to understand the approaches available for YOUR individual disease. AML treatments can include:
Chemotherapy
Targeted therapy
Stem cell transplant
Immunotherapy
Clinical trials, which may provide access to treatments that are not yet approved.
Or, you may receive a combination of one or more of these treatments.
Once you understand the therapies that are available to you, it’s time to talk to your doctor about the risks and benefits of each option. Your doctor will also consider your age, overall health, and existing conditions before suggesting a treatment course.
So, what questions should you address when discussing your treatment goals with your doctor? Consider asking:
Is stem cell transplant a viable option for you?
Can you tolerate high-intensity therapy or is low-intensity therapy better for you?
How will the treatment impact your quality of life and lifestyle?
Are there short or long-term treatment side effects that may occur after you have completed treatment?
What is the plan if the first approach to treatment isn’t effective?
Is there a clinical trial that might be right for you?
Is there a member of the team, such as a social worker, that can help you understand the potential treatment costs? And is there access to financial resources that can help you if needed?
Remember that you have a role in making decisions regarding your care. Insist that all of your questions are answered when making a decision with your healthcare team. If you don’t feel supported or you don’t feel heard by your healthcare team, then it is always best to seek a second opinion.
Finally, once you have gathered all the information, it may be helpful to talk it out with people you trust, such as a partner, friend or family member, to help you make a decision that you feel confident about.
Now, how can you put this information to work for you?
Ensure that you have an accurate understanding of your diagnosis.
Make sure you have had appropriate testing to establish your subtype and risk.
Understand your treatment options and talk with your doctor about what’s best for YOUR AML.
Remember, you are a partner in your care and have an active voice in finding the best treatment for you.
What should acute myeloid leukemia (AML) patients and care partners know about treatment options? Dr. Pinkal Desai shares information about frontline treatments, targeted therapies, combination therapies, and clinical trials, and explains an important clarification regarding a newly approved oral hypomethylating agent.
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.
So, in looking at a treatment plan, we’ve discussed the factors that go into that choice. And then, you’ve also just covered some treatment approaches and who they might be right for. So, you’ve talked about chemotherapy. You’ve talked about stem cell transplant. What about targeted therapies and also clinical trials? Where do they fit in?
Dr. Desai:
Right now, if somebody’s diagnosed with new AML or newly diagnosed leukemia, and they are eligible for intensive chemotherapy of the approved agents, the one targeted therapy that does make a difference is midostaurin, which is a FLT3 inhibitor.
And patients who do have a FLT3 mutated leukemia, the standard of care is treatment with intensive chemotherapy in combination with midostaurin. So, this is where chemotherapy’s combined with the backbone of the targeted therapy.
There are clinical trials of other targeted therapies that are being combined with frontline treatment. That frontline treatment might be intensive chemotherapy or more of the hypomethylating-based therapy, which is what we call lower intensity therapy. So, these are where the clinical trials are asking the question that can be just how midostaurin was combined with chemotherapy.
Can we combine other targeted therapies with the backbones that currently exist? Chemotherapy or lower intensity hypomethylating agents. And can we combine them to improve the chances of going into remission and staying in remission?
I would say clinical trials are extremely important. Almost any stage of leukemia, whether it’s a new diagnosis, whether it’s second-line or relapse, it’s important, because these questions that are being asked are very relevant. How do we improve upon the existing known remission rates and survival in leukemia?
There are targeted therapies available for IDH inhibitors that are being combined. There is also a newly approved BCL2 inhibitor, venetoclax, which is used in combination with hypomethylating agents, that have shown survival advantage over single agent.
Hypomethylating agents, anybody who’s older, we are now combining the venetoclax with hypomethylating agents for what we call lower intensity induction treatment. And there are several others in the making. We have TP53 inhibitors.
As we talked about this, that leukemia is not one diagnosis, really. AML has several, several, several subtypes, and once we find out what makes that particular patient’s leukemia tick, and if you have a targeted inhibitor towards it, it’s logical that you would want to combine it with what the backbone of treatment is, and that’s where clinical trials are extremely important in asking most relevant questions and improving patient survival.
Katherine:
Dr. Desai, I learned that oral azacitidine was recently FDA approved. What does that approval mean for patients and who is it right for?
Dr. Desai:
So, oral… So, azacitidine. For patients who may or may not know this, azacitidine has been approved in the IV or subcutaneous formulation for treatment of myelodysplastic syndrome and leukemia.
And this is, when I was saying that there is a lower intensity treatment of hypomethylating agents, that’s one of the drugs, azacitidine. And we use it for induction treatment in patients who do not qualify for intensive chemotherapy in AML.
So, oral azacitidine has been currently approved for older patients who have gone through intensive chemotherapy.
The trial was done in patients who did not have prior hypomethylating exposure of any kind, so people who had not seen any IV or subcutaneous azacitidine, they had leukemia, they get the intensive chemotherapy, finish the induction part, and the, what we call, consolidation part, which is the cleaning up with more additional cycles of chemotherapy.
Once that is done, the old standard of care was to not do anything, so these are obviously for patients who are not transplanted. So, once somebody, just to give a background on this, if somebody’s in remission and they’re transplant eligible, we make a decision whether they should go for transplant or they should get some more chemotherapy rounds. Both are consolidation of some kind, transplant or chemotherapy.
So, let’s say somebody went through induction, got into remission, and it was decided that they’re not candidates for transplant, or the patient didn’t want to go through a transplant, and you go for the consolidation. And the old standard was, after that, to do nothing. And oral azacitidine was tested in this situation, where half the patients got oral azacitidine as maintenance. It was given as pills, to take it for two weeks out of a 28-day cycle.
So, every month, you take it for 14 days. And half of them didn’t get the drug, oral azacitidine. And the drug was recently approved for FDA for having a survival advantage over the standard of care, which is to do nothing after consolidation is over.
So, in other words, this is currently available for patients, older patients, who’ve gone through induction chemotherapy, and/or consolidation, and then finished it. Then, you start this oral azacitidine for keeping this remission going on longer. And that’s where the niche of this drug is.
It is very, very important to understand that oral azacitidine has a very different kinetic in the body than IV azacitidine. So, I think people, many times, get confused between is IV the same as oral? They are totally different drugs and have a different way it affects the bone marrow.
So, they’re not to be interchanged for that indication. Oral azacitidine has been strictly approved for maintenance of remission, post-chemotherapy.
https://powerfulpatients.org/wp-content/uploads/AML-Treatment-Approaches_-What-You-Should-Know-About-Your-Options-2.png600600GIna Craighttps://powerfulpatients.org/wp-content/uploads/New-Logo-300x126.pngGIna Craig2020-11-19 13:45:362020-11-19 13:45:36AML Treatment Approaches: What You Should Know About Your Options
Dr. Daniel Pollyea, an AML specialist, dispels common myths around the causes and symptoms of AML and shares advice so that you can identify credible resources for information. Download the Program Guide here.
Dr. Daniel A. Pollyea is Clinical Director of Leukemia Services in the Division of Medical Oncology, Hematologic Malignancies and Blood and Marrow Transplant at University of Colorado Cancer Center.
I’m Ross Reynolds. Today we’re gonna be debunking some common misconceptions about the causes and symptoms of AML.
And joining me is Dr. Daniel Pollyea. Dr. Pollyea, could you introduce yourself?
Dr. Pollyea:
Yeah. Hi. Good morning, everyone. I’m Dan Pollyea. I’m an Associate Professor of Medicine here at the University of Colorado, where I am the Clinical Director of Leukemia Service.
Ross:
I wanna emphasize to you that this program is not a substitute for medical advice, so be sure to consult your healthcare team when it comes to solid information about it. But you will get some background that I think you’re gonna find useful. And you might have some questions as we go along.
Dr. Pollyea, let’s start out with the basics. What are the causes of AML?
Dr. Pollyea:
Yeah. So, Acute Myeloid Leukemia, it’s a disease, a cancer of the bone marrow.
And it’s the result of an accumulation of mutation and chromosomal abnormalities that affect the DNA of a precursor cell in the bone marrow, otherwise known as a stem cell.
And those abnormalities accumulate until that cell can no longer properly mature, and it also can’t properly die. And so, a cell like that just makes copy after copy after copy of a cell until it crowds out the whole bone marrow with these sorta useless, immature cells.
And the end result of that is the failure of the bone marrow, which causes all of the problems associated with this disease. So, biologically, that’s sort of what happens to make this disease occur.
Ross:
What are some of the myths that you hear from patients that come in and they say, “Oh, this must’ve caused my AML,” but you have to tell them that’s not so?
Dr. Pollyea:
Right. So, I mean, this is one of the most frustrating issues for patients and their families after diagnosis. I mean, it’s a rare disease, only about 30,000 cases a year in the United States. And so, trying to associate a rare disease with external or environmental factors is difficult to impossible. So, although there are a variety of exposures that probably contribute to this disease, we have very little understanding of what those exposures typically are or how that all works.
So, there’s a few things that we know pretty well; large doses of radiation, either associated with like industrial accidents like the Chernobyl disaster, or some of the radiation therapies that patients receive for other types of cancer. Other types of chemotherapy that are used to cure other cancers can contribute to this disease in later years.
We know that there are certain precursor conditions that can evolve to AML, so a person with myelodysplastic syndrome, for instance, has a fairly high chance of someday evolving to develop Acute Myeloid Leukemia. But beyond these sort of a few associations, there isn’t a whole lot that’s known or proven.
Ross:
Now there is radiation associated with X-rays, and some people think that X-rays can cause AML. Is that true?
Dr. Pollyea:
Yeah.
So, I mean, I think a priori no because millions of people get X-rays every day, and only 30,000 people a year get AML. So, clearly it’s not a simple association between getting an X-ray and developing AML. But I think that there is an unknown interaction between environmental exposures and a person’s individual genetic makeup that makes a person more or less susceptible to developing something like AML with respect to exposure to the environment or X-rays and things.
So, while you cannot say that getting an X-ray will lead to AML, certainly there are some people who are more sensitive to the damage that’s done by something like an X-ray. And so, the best course of action is to be cautious and judicious about your exposure to these things, but not to not get these things when they are medically necessary.
So, that’s the challenging balance.
Ross:
Here’s something else we’ve heard, that weed killers can be a risk factor for AML. Is that true?
Dr. Pollyea:
I mean, I think there’s a lot coming out now about weed killers and their association with other types of cancers. Again, I go back to the limitation we have in that in only 30,000 people a year in the United States get AML. Millions of people are exposed to weed killers.
We’re statistically never going to be able to make a clear association. I think that there are certainly some risks for some people. Whether you’re that person who’s more susceptible to developing leukemia or any other cancer because of exposure to a weed killer is impossible to know.
So, like all of these things, I think the advice we have is you have to live your life. You have to do your best to sort of avoid things that you can avoid that you think would be… Or that may cause problems. But not to let those things prevent you from living a normal life.
I know that’s not a satisfying answer, but at the moment that’s the best answer we have.
Ross:
Is formaldehyde exposure another risk factor for AML?
Dr. Pollyea:
Yeah. We think that it is, and kind of along the lines of benzene. But, again, we think that those studies that have shown those types of association show it in very high amounts, amounts that most people in this country would not be exposed to. But I do think, or we do think that there is something to that, to formaldehyde somehow contributing to this.
Ross:
What’s the difference between a risk factor for AML and a cause of AML?
Dr. Pollyea:
Yeah. So, I think risk factors by definition are things that may contribute to AML. And a risk factor for AML by that definition could be walking down the street and having some exposure to radiation from the sun. A cause of AML is something that is a much more solid sort of well-understood factor.
Like I said before, having myelodysplastic syndrome, there is a high chance that that can evolve to Acute Myeloid Leukemia. And if that happens then the MDS, the myelodysplastic syndrome, could be considered or would be considered the cause of your AML. So, very, very different in terms of the amount of evidence that goes into making those determinations
Ross:
Is there a genetic component to this? Can this run in a family?
Dr. Pollyea:
Yeah. So, this is a disease of the genome.
So, I mean, in a lot of respects it is a genetic disease. But the question is very different when you ask is this an inherited genetic disease? Is this disease due to a gene that I inherited from a parent or could pass along to a child?
For many, many years, the answer from the medical community was, “No.” This was not considered to be a disease that clustered in families or that could be inherited. We now know that that’s not necessarily the case. There are some very rare cases where this does seem to travel in families or cluster in families. And we’re now beginning to understand who those people are and what those genes are.
But the vast majority of people with this disease did not inherit a gene to contribute to it and cannot pass this along to a child. This is a random, spontaneous event that occurred within one person’s own body and is not traveling within family. So, we’re learning more and more about this, but really, the vast majority of this is not an inherited genetic condition.
Ross:
You’ve mentioned gene mutations. What mutates a gene? What causes that to happen that could lead down the line to AML?
Dr. Pollyea:
Yeah. Yeah. That’s a great question. Most of the time we do not know the answer to that. These gene mutations occur spontaneously, randomly, and we don’t understand why they happen when they do happen.
And I know that’s, again, not a satisfying answer. It’s very frustrating, particularly patients come in, and, “I’ve lived a healthy lifestyle. I’ve done everything right. I exercise. I eat right. How could this have happened?”
These are things that for the most part are out of the control of a person. These aren’t impacted by your diet or your activity levels, what you eat or don’t eat, what you do or don’t do. That’s a real frustration. In the end, in almost all cases we don’t know or understand why these gene mutations or these, I call them mistakes in the body, occur when they occur. We don’t understand them.
And, Dr. Pollyea, someone asked if benzene can be a risk factor for AML.
Dr. Pollyea:
Yeah. So, benzene is one of the sort of rare environmental exposure associations that we do have clear associations with AML.
But the level of benzene that a person would need to be exposed to is really something that hasn’t been seen in this country in a very long time.
We’d be talking about like an industrial accident type exposure in almost all cases, so being exposed to a cleaning solution or some other fairly minor exposure to benzene, we don’t think is enough, in most cases, to prompt this disease. But benzene in very high doses, like an industrial accident, yes, that is something that we understand can certainly contribute or cause AML.
Ross:
Autoimmune diseases, such as arthritis, can they increase the risk of AML?
Dr. Pollyea:
Oh, boy. That is a really interesting one. So, there are papers in the literature that do support those associations. And I know in my own practice I certainly see that trend. So, I do think that there is something there. There is a proven association between autoimmune conditions and myelodysplastic syndrome, which I said before can be a clear precursor condition to AML. So, certainly, that is an association that is a possibility.
It can be a little difficult to tease out whether it’s those diseases that are associated with ultimately developing AML, or the treatments that people get for some of those autoimmune diseases. Those treatments can modulate the immune system in certain ways that may, in fact, contribute or drive the disease. So, that’s a difficult thing to tease out.
But in general terms, yes, I think there are some associations. Now not by a long shot everyone with an autoimmune disease gets AML. It’s a teeny, tiny fraction. But I think there is an association there.
Ross:
How easy is it to diagnose AML?
Dr. Pollyea:
Well, I mean, I think there’s very clear diagnostic criteria for AML. But I guess that doesn’t really answer the question. And we certainly have patients who come to us after many months of frustration without a clear diagnosis.
So, those scenarios can play out. Many times AML’s a very dramatic presentation, so people get very, very sick very, very quickly with extraordinarily high white blood cell counts and suppression of all the other blood counts that come from the bone marrow like red blood cells and platelets.
In those cases it’s pretty clear that there is a type of acute leukemia going on. There can be some difficulty distinguishing Acute Myeloid from Acute Lymphoblastic Leukemia; those are sort of like cousins, but very different and treated differently. So, it kinda runs the gamut. I mean, it can be pretty clear, but it’s sometimes missed, so yeah.
Ross:
This is a great lead-in to my next question, which is about the symptoms of AML. What should be the warning signs that this might be something you need to get looked at?
Dr. Pollyea:
Right. So, at presentation, the main symptoms are reflective of the fact that the bone marrow, the organ that makes all the cells of the blood, has failed.
So, that can cause severe anemia. Signs of anemia: a white sort of appearance, feeling dizzy or lightheaded when standing, short of breath, weak, tired, fatigue. Those are all pretty clear presenting symptoms for AML. Because the bone marrow also is responsible for making platelets that clot the blood, some people will present with a bleeding complication, or a very subtle rash made up of these particular red dots. We call that a petechial rash. And that rash can come on when the platelet count gets very low.
Sometimes a person will present with an infection or infections that don’t go away or don’t clear because of decrease in white blood cells, the infection-fighting cells of the bone marrow. Those are made in the bone marrow and can fail in the setting of this disease. So, those are the most common symptoms at presentation, symptoms that are reflective of bone marrow failure.
Ross:
You mentioned that sometimes the presentation could be very dramatic, and it sounds like the symptoms are very severe, very quickly. Is that always the case? Is that often the case?
Dr. Pollyea:
That is the case in, I would say, a minority of times. That’s usually the case. It’s more often seen in younger patients with AML. Typically, older patients with AML have a more smoldering course and a much less dramatic presentation, although this sort of very dramatic and dangerous presentation can happen in older patients, but it’s probably something like a third of the time that those very dramatic and medical emergency presentations occur.
Ross:
How important is early diagnosis?
Dr. Pollyea:
Well, I mean, it’s crucial. I mean, in particular in those cases where it’s a very dramatic and proliferative diagnosis, or presentation. A quick diagnosis and recognition of this condition is very important because the sooner a person starts effective treatment the better the ultimate outcome is.
I would say in general terms that applies to all AML patients, but certainly there’s some degrees of variation. So, there’s some AML patients that when I hear about their case on the phone from a referring doctor, it’s appropriate to see them next week in the clinic.
So, it’s not always a medical emergency, but we would never, even in those next-week-in-the-clinic patients, this isn’t something that can wait for weeks or certainly months. This is something that needs to be addressed fairly quickly.
Ross:
What are the best ways to manage those symptoms?
Dr. Pollyea:
Right. So, I mean, at presentation, all those symptoms, the best way to manage those are to start treatment as quickly as possible. So, impacting the underlying cause of this disease is the most important and critical factor to getting a person feeling better because all of these problems stem from the disease in the bone marrow, and so everything else that you do to sort of help a person’s symptoms are Band-Aids when you’re not talking about getting to the root cause.
So, that’s at presentation. Now once we start treatment, there are many potential side effects to any number of treatments. And it all is dependent on what treatment you’re getting and other things about you that will make this a significant problem in some cases. And in that setting, we do have ways that we can aggressively manage a person’s side effects.
Ross:
Can you manage all of the symptoms? Or can people still be experiencing symptoms even after they’re in treatment?
Dr. Pollyea:
Absolutely. So, a person with this disease, depending on how long they’ve had it and some of the features, may not be feeling back to their baseline self for potentially weeks or months after treatment starts in the best-case scenario. So, that can be very frustrating, but a person needs to sort of be able to continue to have a good outlook and stay positive.
Because we are able in many cases to make a big impact on this disease and return a person to their pre-disease quality of life.
Ross:
What are some of the myths that you hear, Dr. Pollyea, about the treatment? Some things that people come in to you saying they think that it helps, but there’s no science to back that up?
Dr. Pollyea:
So, myths about treatment, so many people have a lot of preconceived notions about the intensity of a therapy that they’re going to be asked to withstand. And although sometimes we do treat this disease very intensively, that’s not always the case, and now we have some very effective lower-intensity regimens that can be used in a variety of different scenarios.
There are a lot of people who have a lot of preconceived notions about a stem-cell transplant or a bone-marrow transplant and whether or not they would be eligible for this based on maybe what they’ve heard from friends or family, or what they’ve seen in the internet.
And those are often incorrect. And so, keeping an open mind about treatment options, and discussing those in detail with your doctor are really, really important.
Ross:
You mentioned sometimes it presents in young people, sometimes in older people. What’s sort of typical?
Dr. Pollyea:
This is a disease of predominantly older patients, so the median age of presentation is 68. So, that means that over half of the patients are over 68 years old at diagnosis. So, while this does happen, can happen in younger patients, that’s really an unusual situation. This disease is, like I said, it is predominantly a disease of older patients.
Ross:
There are some patients who I understand think that supplements can deal with the symptoms of AML. Is that accurate?
Dr. Pollyea:
You know, I mean, I think the supplement question is always a challenge. A lot of these supplements, or most of these supplements have never been tested with the rigor of treatments that we’re accustomed to in the medical establishment.
That being said, I won’t deny that some of the supplements can help patients based on what patients’ experiences are and what they tell me. I think what’s really important is just be very open and honest with your doctor about the supplements that you’re taking or want to take to ensure that there are no sort of unanticipated interactions with treatments.
Because I think most doctors are very open to having their patients care for themselves in the ways that they’ve become accustomed to, and they know their bodies very well, and we’re very open to that. But there are sometimes that a drug or a supplement might have a bad interaction with the treatment.
And so, a good example in my practice is antioxidants. So, there’s a lot of literature, a lot of interest in antioxidants as cancer-prevention treatment.
And a lot of that is not well-established, but still I don’t see much harm. But when it comes time to treating a cancer, that’s a very different situation. When we give a patient treatment to try to kill the cancer cells, many times we’re trying to provoke oxidation. That’s part of how these drugs and these treatments work.
So, if you’re taking those treatments, but also at the same time taking antioxidants, there’s the potential you could sort of be cutting your therapy off at the knees, fighting it with one hand behind your back. So, for the period of time when my patients are getting an active treatment, I ask that they don’t take it antioxidant.
And they can resume that in the future in the hopes of preventing another cancer. But the time to prevent with an antioxidant isn’t appropriate when you’re dealing with an active cancer. So, that’s just one example.
Ross:
Fatigue could be a symptom of AML, but there are a lot of causes of fatigue.
How do you differentiate between something that really could be AML and something that isn’t?
Dr. Pollyea:
Yeah. That’s a challenge because I think these are, as I said, older patients. And older patients have a lot of other medical problems. And older people get fatigued, just that’s unfortunately part of the normal aging process. So, we would usually make an assumption that a person’s fatigue and diagnosis is due to the leukemia, the anemia as a result of the leukemia.
But as we successfully treat a patient if they are responding based on their numbers and other objective criteria, but the fatigue is not improving then I think that’s where we would start to look at other contributing factors, and there can be many, so having an open mind at that point is important.
But at the beginning, this is such a monster of a disease, it’s so overwhelming, I think the focus is usually on assumption that the fatigue is due to the disease or to a treatment associated with this disease.
Ross:
This question: is loss of appetite a symptom of AML?
Dr. Pollyea:
Yeah. I definitely see that, hear that, so sometimes people come in and they say that. Sometimes it may not be a loss of appetite, but an extreme weight loss, so a lot of different types of cancer, including AML, can cause that, just basically unintentional weight loss.
A person’s not trying to lose weight. They’re eating what they think is their normal amount and they’re losing tremendous amounts of weight. So, those are both potential presenting symptoms with AML. And loss of appetite, unfortunately, can be associated with some of the treatments for this disease. And taste changes, things not tasting good, can all contribute to that as well, so those are all challenges that our patients face.
Ross:
How important is to get a second opinion? I mean, are all doctors like you pretty much on the same page when it comes to symptoms and treatment?
Dr. Pollyea:
So, this is a challenge. So, the answer to the second question first is unfortunately, no. A lot of this hasn’t quite been standardized. And some doctors, oncologists, cancer doctors, they’ll predominantly be treating the things that are common: colon cancer, breast cancer, prostate cancer. And they will probably only have a few cases of acute leukemia a year.
And so, their approach to this is going to be different than somebody who spends all day seeing patients with AML and thinking about AML.
So, a second opinion is a very nice thing to be able to do. The problem with this disease is that most times it doesn’t afford that opportunity. So, with other conditions you have some time to go out, read about it, talk to some different doctors, get a good plan together.
With AML, often that’s not a possibility. A person is so urgently sick that you have to sorta deal with the resources where you are. The best recommendation I have there, if you do find yourself in a situation where there’s not a lot of expertise is to ask your doctor to just call somebody in the region or email somebody in the region who may have that expertise.
And most doctors all over the country have that sort of resource or partner that they will go to and talk the case through with them, and maybe a transfer to one of those high-volume centers is appropriate.
And maybe that’s not a possibility or appropriate, but maybe you would benefit from just talking… Maybe your doctor would benefit from talking this through. But in cases where it’s not such a dramatic presentation, then yeah, for sure, I think a second opinion can be appropriate. But this isn’t something that can be sort of drawn out for long period of time.
Ross:
You know, when you find out something like this, your tendency might be to jump on the web and start searching for AML. How do you vet those sources that you look at? How do you figure out that their – what would be a sign that they’re bogus sources?
Dr. Pollyea:
Yeah. I mean, I think this field is so rapidly changing and the treatment that we have, that I would, for the most part, assume that what you’re finding on the web is not relevant and is not an up-to-date resource. So, the resources that I listed, the NCCN, UpToDate, the Leukemia & Lymphoma Society, I should mention.
A very important resource that has up-to-date information, and they have even phone numbers for patients and their families to call to get connected with the proper people in a particular city, so that is a really important resource. But I’d be really, really cautious about what you find on the internet because things are changing so fast in this field. There’s a lot of outdated and misinformation on the internet.
Ross:
Well, then there’s outright scams. One of the things you mentioned before we went on is be cautious if someone’s asking you to put money upfront, or if it’s a nonmedical facility. What are some things that people should watch out for?
Dr. Pollyea:
Yeah. So, one of the things that is so important in our area is clinical trials and participating in clinical trials. Patients who opt to do this and receive experimental therapies can sometimes get the treatment of the future, get a drug that’s not currently available through the FDA, but may have a lot of promise.
And this is the way that we fight this disease. We’ve recently had an onslaught of approvals for AML and that’s because the patients being willing to participate in sanctioned clinical trials. So, participating in a sanctioned clinical trial is crucial, and it’s always a recommendation of all leukemia doctors.
When you participate in a conventional clinical trial, you’re asked to sign a consent form that explains what you’re doing and why. There is a confirmation that this has been vetted by an institution’s regulatory board that is prioritizing the safety and well-being of you, the patient. This has been approved by the FDA as a clinical trial. Nobody would ever ask you to pay money. That’s not ethical to participate in a clinical trial. Insurance covers whatever standard of care. And the clinical trial covers anything that isn’t.
So, if you find yourself in a situation where you’re not being asked to sign a consent form, where a clinical trial has not been reviewed by a regulatory board, where your doctor is not a leukemia specialist, where the FDA has not sanctioned the treatment, all of those are alarm signs.
Because there are people out there that are preying on patients in a desperate situation, a very difficult time in their life, and giving them sort of false hope and leading them down paths that are not legitimate.
One easy thing to do to sorta check to see if a clinical trial is legitimate is to go onto clinicaltrials.gov.
This is a resource set up by our national healthcare system that now feeds in every legitimate clinical trial from all over the world, needs to be registered on clinicaltrials.gov. So, if you can’t find your clinical trial on clinicaltrials.gov, I would have a lot skepticism and caution about that.
Ross:
Like what advice do you have for people when they’re first diagnosed? What are the first things they should try to do?
Dr. Pollyea:
Yeah. I mean, that reaction is totally normal and natural. I mean, many times these people are perfectly healthy or have been perfectly healthy, and this news is a complete shock.
And so, it is normal and appropriate to have some period of grieving for the healthy life that you are losing. But I would also, while giving yourself that time to grieve, first, draw on your support system, your family, your friends. Allow them to help you. Accept that assistance that they have. And to be optimistic because we are getting so much better at treating this disease.
I had mentioned before, there has been an onslaught of approvals for drugs in this area the likes of which hasn’t been seen in decades. We have new tools and weapons in our arsenal that we couldn’t have dreamed of even a few years ago.
We in our community are very excited and hopeful about the future and we hope that that will translate ultimately to patients, but being depressed or being down, being scared, all of that is normal.
All of that is expected. Anyone would feel like that. Allowing yourself to have those feelings and emotions is important, as long as it doesn’t get in the way of doing what you need to do to fight this disease.
Ross:
It sounds like you’re hopeful about new treatments for the disease. How about a cure? What’s the science? What’s the medical science say about that? Are we getting any closer to that?
Dr. Pollyea:
We are getting closer to curing this in more cases. So, like I mentioned before, as bad as this is, we can already cure some subsets of patients. There’s one type of Acute Myeloid Leukemia called Acute Promyelocytic Leukemia, APL. It’s an uncommon form of AML, less than 10 percent.
But we can cure close to 99 percent of people with APL. And APL, 15 years ago, was universally the worst form of acute leukemia to get. So, that dramatic 180 that we’ve seen in APL, we are hoping to translate into other forms of AML.
Some other forms of AML have cure rates as high as 50 percent, 60 percent, 70 percent in the right setting. Sometimes we can cure patients with a stem cell transplant fairly reliably. So, we are very, very hopeful about our ability to continue to make progress and cure more and more and more of these patients. That’s the future that we see.
Ross:
Dr. Pollyea, thank you so much. And thank you so much for ending on such a positive note. We really appreciate it. And thank you for joining us for this program today.
To learn more about AML and to access tools to help you become a proactive patient, visit powerfulpatients.org. I’m Ross Reynolds. Thanks for joining us.
https://powerfulpatients.org/wp-content/uploads/Pollyea-1.png600600Kara Rayburnhttps://powerfulpatients.org/wp-content/uploads/New-Logo-300x126.pngKara Rayburn2019-06-05 15:38:122022-09-08 12:04:58Fact or Fiction? AML Causes & Symptoms
